UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-K

FORM10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017

2019

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to

unitedcoverlogoa01.jpg

Commission

File Number

Exact Name of Registrant as

Specified in its Charter, Principal
Executive

Office Address, Zip Code and

Telephone Number, Including Area Code

State of

Incorporation

I.R.S. Employer

Identification No.

001-06033

United Continental Holdings, Inc.
233 South Wacker Drive
Chicago, Illinois 60606
(872)825-4000
Delaware36-2675207

001-10323

United Airlines, Inc.
233 South Wacker Drive
Chicago, Illinois 60606
(872)825-4000
Delaware74-2099724

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Name of Each Exchange on Which Registered

United Continental Holdings, Inc.

  Common Stock, $0.01 par value  New York Stock Exchange

United Airlines, Inc.

  None  None

Securities registered pursuant to Section 12(g) of the Act:

Commission
File Number
 

Exact Name of Registrant as Specified in its Charter,
Principal Executive Office Address and Telephone Number
State of
Incorporation
I.R.S. Employer
Identification No.
001-06033United ContinentalAirlines Holdings, Inc.

 Delaware36-2675207
233 South Wacker Drive,Chicago,Illinois60606
(872)825-4000
001-10323United Airlines, Inc.Delaware74-2099724
233 South Wacker Drive,Chicago,Illinois60606
(872)825-4000
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered
United Airlines Holdings, Inc.Common Stock, $0.01 par valueUALThe Nasdaq Stock Market LLC
United Airlines, Inc. None NoneNone
Securities registered pursuant to Section 12(g) of the Act:

United Airlines Holdings, Inc.

 None 
 United Airlines, Inc.None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Act

United ContinentalAirlines Holdings, Inc.

 YesNo 

United Airlines, Inc.

 Yes  ☒    No  ☐No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act

Act.

United ContinentalAirlines Holdings, Inc.

 YesNo 

United Airlines, Inc.

 Yes  ☐    No  ☒No

Indicate by check mark whether the Registrantregistrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrantregistrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

United ContinentalAirlines Holdings, Inc.

 YesNo 

United Airlines, Inc.

 Yes  ☒    No  ☐No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of RegulationS-T (§232.405 of this chapter)Chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

United ContinentalAirlines Holdings, Inc.

 YesNo 

United Airlines, Inc.

 Yes  ☒    No  ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 ofRegulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of thisForm 10-K or any amendment to thisForm 10-K.

United Continental Holdings, Inc.            

No

United Airlines, Inc.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large"large accelerated filer,” “accelerated" "accelerated filer,” “smaller" "smaller reporting company," and “emerging"emerging growth company”company" in Rule 12b-2 of the Exchange Act. (Check one):

United Continental

Airlines Holdings, Inc.

Large accelerated filer  ☒Accelerated filerNon-accelerated filerNon-accelerated filer  Smaller reporting company  ☐Emerging growth company

United Airlines, Inc.

Large accelerated filer  ☐Accelerated filerNon-accelerated filerNon-accelerated filer  Smaller reporting company  ☐Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

United ContinentalAirlines Holdings, Inc.

 

United Airlines, Inc.

 

Indicate by check mark whether the registrant is a shell company (as defined inRule 12b-2 of the Exchange Act).

United ContinentalAirlines Holdings, Inc.

 Yes    No 

United Airlines, Inc.

  YesNo 

The aggregate market value of common stock held by non-affiliates of United ContinentalAirlines Holdings, Inc. was $21,673,390,018$21.1 billion as of June 30, 2017,28, 2019, based on the closing sale price of $75.25$87.55 on the New York Stock Exchange reported for that date. There is no market for United Airlines, Inc. common stock.

Indicate the number of shares outstanding of each of the registrant’sregistrant's classes of common stock, as of February 14, 2018.

18, 2020.

United ContinentalAirlines Holdings, Inc.

 284,700,547 247,951,116shares of common stock ($0.01 par value)

United Airlines, Inc.

 1,000shares of common stock ($0.01 par value) (100% owned by United ContinentalAirlines Holdings, Inc.)

This combined Form10-K is separately filed by United ContinentalAirlines Holdings, Inc. and United Airlines, Inc.

OMISSION OF CERTAIN INFORMATION

United Airlines, Inc. meets the conditions set forth in General Instruction I(1)(a) and (b) of Form10-K and is therefore filing this form with the reduced disclosure format allowed under that General Instruction.

DOCUMENTS INCORPORATED BY REFERENCE

Information

Certain information required by Items 10, 11, 12 and 13 of Part III of thisForm 10-K is incorporated by reference for United ContinentalAirlines Holdings, Inc. from its definitive proxy statement for its 20182020 Annual Meeting of Stockholders.



United ContinentalAirlines Holdings, Inc. and Subsidiary Companies

United Airlines, Inc. and Subsidiary Companies

Annual Report onForm 10-K

For the Year Ended December 31, 2017

2019
    
 Page
PART I
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.
  
PART II
Item 5. PART I

Item 1.

3

Item 1A.

Risk Factors10

Item 1B.

Unresolved Staff Comments20

Item 2.

Properties21

Item 3.

Legal Proceedings22

Item 4.

Mine Safety Disclosures23
PART II

Item 5.

Market for Registrant’sRegistrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Item 6. 24

Item 6.

7.
 26

Item 7.

Management’sManagement's Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. 28

Item 7A.

Item 8. 45

Item 8.

  47
Item 9. 61

Item 9.

Item 9A.
Item 9B.
  102 

PART III

Item 9A.

10.
 102

Item 9B.

Other Information105
PART III

Item 10.

Directors, Executive Officers and Corporate Governance
Item 11. 105

Item 11.

12.
 106

Item 12.

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. 106

Item 13.

Item 14. 107

Item 14.

  107 
PART IV
Item 15. 
PART IV

Item 15.

Item 16. 108

Item 16.

132



This Annual Report on Form 10-K ("Form 10-K") contains various “forward-looking statements”"forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”"Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”"Exchange Act"). Forward-looking statements represent our expectations and beliefs concerning future results or events, based on information available to us on the date of the filing of thisForm 10-K, and are subject to various risks and uncertainties. Factors that could cause actual results or events to differ materially from those referenced in the forward-looking statements are listed in Part I, Item 1A,1A. Risk Factors and in Part II, Item 7, Management’s7. Management's Discussion and Analysis of Financial Condition and Results of Operations. We disclaim any intent or obligation to update or revise any of the forward-looking statements, whether in response to new information, unforeseen events, changed circumstances or otherwise, except as required by applicable law.

PART I


ITEM 1.BUSINESS.

ITEM 1.    BUSINESS.
Overview

United ContinentalAirlines Holdings, Inc. (together with its consolidated subsidiaries, “UAL”"UAL" or the “Company”"Company") is a holding company and its principal, wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, “United”"United"). As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United’sUnited's operating revenues and operating expenses comprise nearly 100% of UAL’sUAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL’sUAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words “we,” “our,” “us,”"we," "our," "us," and the “Company”"Company" in this report for disclosures that relate to all of UAL and United.

UAL was incorporated under the laws of the State of Delaware on December 30, 1968. Effective June 27, 2019, UAL amended its Certificate of Incorporation to change its name to "United Airlines Holdings, Inc." Our principal executive office is located at 233 South Wacker Drive, Chicago, Illinois 60606 (telephone number(872) 825-4000).

The Company’sCompany's website is www.united.com.located at www.united.com and its investor relations website is located at ir.united.com. The information contained on or connected to the Company’s websiteCompany's websites is not incorporated by reference into this annual reportAnnual Report onForm 10-K and should not be considered part of this or any other report filed with the U.S. Securities and Exchange Commission (“SEC”("SEC"). Through this website, the Company’sThe Company's filings with the SEC, including annual reports onForm 10-K, quarterly reports onForm 10-Q, current reports onForm 8-K, and all amendments to those reports, as well as ourUAL's proxy statement for ourits annual meeting of stockholders, are accessible without charge on the Company's investor relations website, as soon as reasonably practicable, after such material is electronically filed with, or furnished to, the SEC. Such filings are also available on the SEC’sSEC's website at www.sec.gov.

Operations

The Company transports people and cargo through its mainline and regional operations. With key global aviation rights inthroughout North America Asia-Pacific,and to destinations in Asia, Europe, Africa, the Pacific, the Middle East and Latin America, UAL has the world’s most comprehensive global route network.America. UAL, through United and its regional carriers, operates more than 4,5004,900 flights a day to 338362 airports across fivesix continents, with hubs at Newark Liberty International Airport (“Newark”("Newark"), Chicago O’HareO'Hare International Airport (“("Chicago O’Hare”O'Hare"), Denver International Airport (“Denver”("Denver"), George Bush Intercontinental Airport (“("Houston Bush”Bush"), Los Angeles International Airport (“LAX”("LAX"), A.B. Won Pat International Airport (“Guam”("Guam"), San Francisco International Airport (“SFO”("SFO") and Washington Dulles International Airport (“("Washington Dulles”Dulles").

All of the Company’sCompany's domestic hubs are located in large business and population centers, contributing to a large amount of “origin"origin and destination”destination" traffic. The hub and spoke system allows us to transport passengers between a large number of destinations with substantially more frequent service than if each route were served directly. The

hub system also allows us to add service to a new destination from a large number of cities using only one or a limited number of aircraft. As discussed underAlliances below, United is a member of Star Alliance, the world’sworld's largest alliance network.

Financial information on the Company’s operating revenues by geographic region, as reported to the U.S. Department of Transportation (the “DOT”), can be found in Note 15 to the financial statements included in Part II, Item 8 of this report.

Regional. The Company has contractual relationships with various regional carriers to provide regional aircraft service branded as United Express. These regional operations are an extension of the Company’s mainline network. This regional service complements our operations by carrying traffic that connects to our mainline servicehubs and allows flights to smaller cities that cannot be provided economically with mainline aircraft. Republic Airlines (“Republic”), Champlain Enterprises, LLC d/b/a CommutAir (“CommutAir”("CommutAir"), Republic Airline Inc. ("Republic"), ExpressJet Airlines (“ExpressJet”LLC ("ExpressJet"), GoJet Airlines (“GoJet”LLC ("GoJet"), Mesa Airlines, (“Mesa”Inc. ("Mesa"), SkyWest Airlines, (“SkyWest”Inc. ("SkyWest"), Air Wisconsin Airlines (“LLC ("Air Wisconsin”Wisconsin"), and Trans States Airlines, (“LLC ("Trans States”States") are all regional carriers that operate with capacity contracted to United under capacity purchase agreements (“CPAs”("CPAs"). Under these CPAs, the Company pays the regional carriers contractually agreed fees (carrier

(carrier costs) for operating these flights plus a variable reimbursement (incentive payment for operational performance)rate adjustment based on agreed performance metrics, subject to annual inflation adjustments. The fees for carrier costs are based on specific rates for various operating expenses of the regional carriers, such as crew expenses, maintenance and aircraft ownership, some of which are multiplied by specific operating statistics (e.g., block hours, departures), while others areas well as fixed monthly amounts. Under these CPAs, the Company is also responsible for all fuel costs incurred, as well as landing fees and other costs, which are either passed through by the regional carrier to the Company without any markup or directly incurred by the Company. In some cases, the Company owns some or all of the aircraft subject to the CPA and leases such aircraft to the regional carrier. In return, the regional carriers operate thisthe capacity of the aircraft included within the scope of such CPA exclusively for United, on schedules determined by the Company. The Company also determines pricing and revenue management, assumes the inventory and distribution risk for the available seats and permits mileage accrual and redemption for regional flights through its MileagePlus® loyalty program.

Alliances. United is a member of Star Alliance, a global integrated airline network and the largest and most comprehensive airline alliance in the world. As of January 1, 2018,2020, Star Alliance carriers served nearly 1,300 airports in 191195 countries with 18,400more than 19,000 daily departures. Star Alliance members, in addition to United, are Adria Airways, Aegean Airlines, Air Canada, Air China, Air India, Air New Zealand, All Nippon Airways (“ANA”("ANA"), Asiana Airlines, Austrian Airlines, Avianca, Avianca Brasil,Aerovías del Continente Americano S.A. ("Avianca"), Brussels Airlines, Copa Airlines ("Copa"), Croatia Airlines, EGYPTAIR, Ethiopian Airlines, EVA Air, LOT Polish Airlines, Lufthansa, SAS Scandinavian Airlines, Shenzhen Airlines, Singapore Airlines, South African Airways, SWISS, TAP Air Portugal, THAI Airways International and Turkish Airlines. In May 2017,addition to its members, Star Alliance addedincludes Shanghai-based Juneyao Airlines as an additionala connecting partner.

United has a variety of bilateral commercial alliance agreements and obligations with Star Alliance members, addressing, among other things, reciprocal earning and redemption of frequent flyer miles, access to airport lounges and, with certain Star Alliancemembers, codesharing of flight operations (whereby one carrier’scarrier's selected flights can be marketed under the brand name of another carrier). In addition to the alliance agreements with Star Alliance members, United currently maintains independent marketing alliance agreements with other air carriers, including Aeromar, Aer Lingus, Air Dolomiti, Azul Linhas Aéreas Brasileiras S.A. ("Azul"), Boutique Air, Cape Air, Edelweiss, Eurowings, Great Lakes Airlines, Hawaiian Airlines, Olympic Air, Silver Airways and Silver Airways.Vistara. In addition to the marketing alliance agreements with air partners, United also offers atrain-to-plane codeshare and frequent flyer alliance with Amtrak from Newark on select city pairs in the northeastern United States.

United also participates in threefour passenger joint ventures,business arrangements ("JBAs"): one with Air Canada and the Lufthansa Group (which includes Lufthansa and its affiliates Austrian Airlines, Brussels Airlines, Eurowings and SWISS) covering transatlantic routes, one with ANA covering certain transpacific routes, and one with Air New Zealand covering certain routes between the United States and New Zealand.Zealand and one with Avianca and Copa Airlines, which, upon receipt of regulatory approvals will cover routes between the United States and Central and South America, excluding Brazil. These passenger joint venturesJBAs enable the participating carriers to integrate the services they provide in the respective regions, capturing revenue synergies and delivering enhanced customer benefits, such as highly competitive flight schedules, fares and services. United has also implementedparticipates in cargo joint

venturesJBAs with ANA for transpacific cargo services and continues to implement a cargo joint venture with Lufthansa for transatlantic cargo services. These cargo joint venturesJBAs offer expanded and more seamless access to cargo space across the carriers’carriers' respective combined networks.

Loyalty Program. United’s United's MileagePlus loyalty program builds customer loyalty by offering awards, benefits and services to program participants. Members in this program earn miles for flights on United, United Express, Star Alliance members and certain other airlines that participate in the program. Members can also earn miles by purchasing the goods and services offrom our network ofnon-airline partners, such as domestic and international credit card issuers, retail merchants, hotels and car rental companies. Members can redeem miles for free (other than taxes and government imposedgovernment-imposed fees), discounted or upgraded travel andnon-travel awards.

United has an agreement with JPMorgan Chase Bank, USA, N.A. (“Chase”("Chase"), pursuant to which members of United’sUnited's MileagePlus loyalty program who are residents of the United States can earn miles for making purchases using a MileagePlus credit card issued by Chase.Chase (the "Co-Brand Agreement"). The agreementCo-Brand Agreement also provides for joint marketing and other support for the MileagePlus credit card and provides Chase with other benefits such as permission to market to the Company’sCompany's customer database.

Approximately 5.4 million and 5.2

In 2019, approximately 6.1 million MileagePlus flight awards were used on United in 2017 and 2016, respectively.United Express. These awards represented 7.5% and 7.7%7.2% of United’sUnited's total revenue passenger miles in 2017 and 2016, respectively.miles. Total miles redeemed for flights on United in 2017,and United Express, includingclass-of-service upgrades, represented approximately 85%87% of the total miles redeemed. In addition, excluding miles redeemed for flights on United and United Express, MileagePlus members redeemed miles for approximately 2.32.2 million other awards in 2017 as compared to 2.0 million in 2016.awards. These awards include United Club memberships, car and hotel awards, merchandise and flights on other air carriers.


Aircraft Fuel. The table below summarizes UAL’sUAL's aircraft fuel consumption and expense during the last three years.

  

  Year

  Gallons
Consumed

(in millions)
   Fuel Expense
(in millions)
   Average Price
Per Gallon
   Percentage of
Total
Operating
Expense
     
   2017   3,978     $6,913    $1.74     20%   
   2016   3,904     $5,813    $1.49     18%   
   2015   3,886     $7,522    $1.94     23%   

Year 
Gallons Consumed
(in millions)
 
Fuel Expense
(in millions)
 Average Price Per Gallon Percentage of Total Operating Expense
2019 4,292
 $8,953
 $2.09
 23%
2018 4,137
 $9,307
 $2.25
 24%
2017 3,978
 $6,913
 $1.74
 20%
Our operational and financial results can be significantly impacted by changes in the price and availability of aircraft fuel. To provide adequate supplies of fuel, the Company routinely enters into purchase contracts that are customarily indexed to market prices for aircraft fuel, and the Company generally has some ability to cover short-term fuel supply and infrastructure disruptions at somecertain major demand locations. The price of aircraft fuel has fluctuated substantially in the past several years. As of December 31, 2017, the Company did not have any outstanding fuel hedging contracts. The Company’sCompany's current strategy is to not enter into transactions to hedge its fuel consumption, although the Company regularly reviews its strategy based on market conditions and other factors.

Third-Party Business.United generates third-party business revenue that includes maintenance services, catering, frequent flyer awardnon-air non-travel redemptions maintenance services, catering and ground handling. Third-party business revenue is recorded in Other operating revenue. Expenses associated with third-party business, except non-travel redemptions, are recorded in Other operating expenses.

Non-travel redemptions expenses are recorded to Other operating revenue.

Distribution Channels. The Company’sCompany's airline seat inventory and fares are distributed through the Company’sCompany's direct channels, traditional travel agencies andon-line travel agencies. The use of the Company’sCompany's direct sales website, www.united.com, the Company’sCompany's mobile applications and alternative distribution systems provides the Company with an opportunity tode-commoditize its services, better present its content, make more targeted offerings, better retain its customers, enhance its brand and lower its ticket distribution costs. Agency sales are

primarily sold using global distribution systems (“GDS”("GDS"). United has developed and expects to continue to develop capabilities to sell certain ancillary products through the GDS channel to provide an enhanced buying experience for customers who purchase in that channel. To increase the Company’s opportunities to sell its full range of products and services and lower distribution costs, the Company will continue to develop new selling capabilities in third-party channels and expand the capabilities of its website and mobile applications.

Industry Conditions

Domestic Competition. The domestic airline industry is highly competitive and dynamic. The Company’sCompany's competitors consist primarily of other airlines and, to a certain extent, other forms of transportation. Currently, any U.S. carrier deemed fit by the DOTU.S. Department of Transportation (the "DOT") is largely free to operate scheduled passenger service between any two points within the United States. Competition can be direct, in the form of another carrier flying the exactnon-stop route, or indirect, where a carrier serves the same two citiesnon-stop from an alternative airport in that city or via an itinerary requiring a connection at another airport. Air carriers’carriers' cost structures are not uniform and there are influenced by numerous factors influencing cost structure.factors. Carriers with lower costs may offer lower fares to passengers, which could have a potential negative impact on the Company’sCompany's revenues. Decisions on domesticDomestic pricing decisions are based onimpacted by intense competitive pressure exerted on the Company by other U.S. airlines. In order to remain competitive and maintain passenger traffic levels, we often find it necessary to match competitors’competitors' discounted fares. Since we compete in a dynamic marketplace, attempts to generate additional revenue through increased fares oftentimesoften fail.

International Competition. Internationally, the Company competes not only with U.S. airlines, but also with foreign carriers. International competition has increased and may continue to increase in the future as a result of airline mergers and acquisitions, joint ventures,JBAs, alliances, restructurings, liberalization of aviation bilateral agreements and new or increased service by competitors, including government subsidized competitors from certain Middle East countries. Competition on international routes is subject to varying degrees of governmental regulation. The Company’sCompany's ability to compete successfully withnon-U.S. carriers on international routes depends in part on its ability to generate traffic to and from the entire United States via its integrated domestic route network and its ability to overcome business and operational challenges across its network worldwide. Foreign carriers currently are prohibited by U.S. law from carrying local passengers between two points in the United States and the Company generally experiences comparable restrictions in foreign countries. Separately, “fifth"fifth freedom rights”rights" allow the Company to operate between points in two different foreign countries and foreign carriers may also have fifth freedom rights between the U.S. and another foreign country. In the absence of fifth freedom rights, or some other extra-bilateral right to conduct operations between two foreign countries, U.S. carriers are constrained from carrying passengers to points beyond designated international gateway cities. To compensate partially for these structural limitations, U.S. and foreign carriers have entered into alliances, joint venturesimmunized JBAs and marketing arrangements that enable these carriers to exchange traffic between each other’sother's flights and route networks. SeeAlliances, above, for additional information.


Seasonality. The air travel business is subject to seasonal fluctuations. Historically, demand for air travel is higher in the second and third quarters, driving higher revenues, than in the first and fourth quarters, which are periods of lower travel demand.

Industry Regulation

Domestic Regulation

Regulation. All carriers engaged in air transportation in the United States are subject to regulation by the DOT. Absent an exemption, no air carrier may provide air transportation of passengers or property without first being issued a DOT certificate of public convenience and necessity. The DOT also grants international route authority, approves international codeshare arrangements and regulates methods of competition. The DOT regulates consumer protection and maintains jurisdiction over advertising, denied boarding compensation, tarmac delays, baggage liability and other areas and may add additional expensive regulatory burdens in the future. The DOT has

launched investigations or claimed rulemaking authority to regulate commercial agreements among carriers or between carriers and third parties in a wide variety of contexts.

Airlines are also regulated by the Federal Aviation Administration (the “FAA”"FAA"), an agency within the DOT, primarily in the areas of flight safety, air carrier operations and aircraft maintenance and airworthiness. The FAA issues air carrier operating certificates and aircraft airworthiness certificates, prescribes maintenance procedures, oversees airport operations, and regulates pilot and other employee training. From time to time, the FAA issues directives that require air carriers to inspect, modify or modifyground aircraft and other equipment, potentially causing the Company to incur substantial, unplanned expenses. The airline industry is also subject to numerous other federal laws and regulations. The U.S. Department of Homeland Security (“DHS”("DHS") has jurisdiction over virtually every aspect of civil aviation security. The Antitrust Division of the U.S. Department of Justice (“DOJ”("DOJ") has jurisdiction over certain airline competition matters. The U.S. Postal Service has authority over certain aspects of the transportation of mail by airlines. Labor relations in the airline industry are generally governed by the Railway Labor Act (“RLA”("RLA"), a federal statute. The Company is also subject to investigation inquiries by the DOT, FAA, DOJ, DHS, the U.S. Food and Drug Administration (“FDA”("FDA"), the U.S. Department of Agriculture (“USDA”("USDA") and other U.S. and international regulatory bodies.

Airport Access. Access to landing andtake-off rights, or “slots,”"slots," at several major U.S. airports served by the Company are or recently have been, subject to government regulation. Federally-mandated domestic slot restrictions that limit operations and regulate capacity currently apply at three airports: Reagan National Airport in Washington, D.C. (“("Reagan National”National"), John F. Kennedy International Airport and LaGuardia Airport ("LaGuardia") in the New York City metropolitan region (“LaGuardia”).region. Of these three airports, United currently operates at two: Reagan National and LaGuardia. Additional restrictions on takeoff and landing slots at these and other airports may be implemented in the future and could affect the Company’sCompany's rights of ownership and transfer as well as its operations.

Legislation. The airline industry is subject to legislative activityactions (or inactions) that may have an impact on operations and costs. In 2018, the U.S. Congress will continue to consider legislation to reauthorizeapproved a five-year reauthorization for the FAA, which encompasses all significant aviation tax and policy-related issues. As with previous reauthorization legislation,The law includes a range of policy changes related to airline customer service and aviation safety which are ongoing and, depending on how they are implemented, could impact our operations and costs. Additionally, the U.S. Congress may consider a range of policy changes thatlegislation related to aviation safety as well as environmental issues which could impact operationsthe Company and costs. Finally, aviation security continues to be the subject of legislative and regulatory action, requiring changes to the Company’s security processes, potentially increasing the cost of its security procedures and affecting its operations.

airline industry.

Catering Operations. The Company owns and operates catering kitchens at airports in Denver, Cleveland, Newark, Houston, and Honolulu, which prepareready-to-eat food for United flights, as well asflights. Some of the Company's kitchens also prepare ready-to-eat food for other domestic and international airlines. In addition,The Company's onboard food service operations are subject to FDA regulation through its interstate conveyance sanitation regulations, and the Cleveland flight kitchen produces a small volume of food products for retail sale. TheseCompany's catering operations are subject to regulation by the FDA and the USDA, as well as other federal, state, and local regulatory agencies. TheIn particular, the FDA recently began implementingenforces the Federal Food Safety Modernization Act which requires all food manufacturers, including ready-to-eat catering operations, to implement more stringent risk-based preventive controls. As a result, airlinethe Company's catering and food service operations have recently become the focus of enhanced scrutiny by the FDA withare periodically subject to inspections and greater enforcement.

enforcement by regulatory agencies.

International Regulation

Regulation. International air transportation is subject to extensive government regulation. In connection with the Company’sCompany's international services, the Company is regulated by both the U.S. government and the governments of the foreign countries the Company serves. In addition, the availability of international routes to U.S. carriers is regulated by aviation agreements between the U.S. and foreign governments, and in some cases, fares and schedules require the approval of the DOT and/or the relevant foreign governments.

Legislation.Foreign countries are increasingly enacting passenger protection laws, rules and regulations that meet or exceed U.S. requirements. In cases where this activity exceeds U.S. requirements, additional burden and liability may be placed on the Company. Certain countries have regulations requiring passenger compensation and/or enforcement penalties from the Company in addition to changes in operating procedures due to canceled and delayed flights.


Airport Access. Historically, access to foreign markets has been tightly controlled through bilateral agreements between the U.S. and each foreign country involved. These agreements regulate the markets served, the number of carriers allowed to serve each market and the frequency of carriers’carriers' flights. Since the early 1990s, the U.S. has pursued a policy of “Open Skies”"Open Skies" (meaning all U.S.-flag carriers have access to the destination), under which the U.S. government has negotiated a number of bilateral agreements allowing unrestricted access between U.S. and foreign markets. Currently, there are more than 100 Open Skies agreements in effect. However, even with Open Skies, many of the airports that the Company serves in Europe, Asia and Latin America maintain slot controls. A large number of these slot controls exist due to congestion, environmental and noise protection and reduced capacity due to runway and air traffic control (“ATC”("ATC") construction work, among other reasons. London Heathrow International Airport, Frankfurt Rhein-Main Airport, Shanghai Pudong International Airport, Beijing Capital International Airport, Sao Paulo Guarulhos International Airport and Tokyo Haneda International Airport are among the most restrictive foreign airports due to slot and capacity limitations.

The Company’sCompany's ability to serve some foreign markets and expand into certain others is limited by the absence of aviation agreements between the U.S. government and the relevant foreign governments. Shifts in U.S. or foreign government aviation policies may lead to the alteration or termination of air service agreements. Depending on the nature of any such change, the value of the Company’sCompany's international route authorities and slot rights may be materially enhanced or diminished. Similarly, foreign governments control their airspace and can restrict our ability to overfly their territory, enhancing or diminishing the value of the Company’sCompany's existing international route authorities and slot rights.

Environmental Regulation

Regulation. The airline industry is subject to increasingly stringent federal, state, local and international environmental requirements, including those regulating emissions to air, water discharges, safe drinking water and the use and management of hazardous substances and wastes.

Climate Change. There is an increasing global regulatory focus on greenhouse gas (“GHG”("GHG") emissions and their potential impacts relating to climate change. InitiativesAn initiative to regulate GHG emissions from aviation had previously been adopted byknown as the European Union (“EU”("EU") Emission Trading System ("ETS") was adopted in 2009, but applicability to flights arriving or departing from airports outside the EU havehas been postponed several times. In December 2017, the European Parliament voted to extend exemptions forextra-EU flights until December 2023 in order to align the extension date with the completion of the pilot phase of the International Civil Aviation Organization’s (“ICAO”Organization's ("ICAO") Carbon Offsetting and Reduction Scheme for International Aviation (“CORSIA”("CORSIA"). CORSIA, which was adopted in October 2016, is intended to create a single global market-based measure to achieve carbon-neutral growth for international aviation after 2020, which willcan be achieved through airline purchases of carbon offset credits. However, the European Parliament is expected to assess CORSIA implementation and re-assess the applicability of EU ETS to international aviation in 2024, at which point the EU could require all extra- and intra-EU flights to participate in EU ETS. Certain CORSIA program details remain to be developed and could potentially be affected by political developments in participating countries or the results of the pilot phase of the program, and thus the impact of CORSIA cannot be fully predicted. However, CORSIA is expected to increase operating costs for airlinesthe Company, depending on a number of factors, including the number of its flights that operate internationally.are subject to CORSIA, the fuel efficiency of the Company's fleet, the Company's purchase and use of CORSIA-eligible sustainable aviation fuels, aviation sector growth, and the price of CORSIA-eligible offsets. In 2016,2017, ICAO also adopted a carbon dioxide (“CO2”("CO2") emission standard for aircraft. TheIn 2016, the U.S. Environmental Protection Agency has("EPA") commenced the procedural steps necessary to adopt its own standard, in consultation with the ICAO.but has not yet taken further action. While the precise timing and final form of these various programs and requirements continue to evolve, the Company is taking various actions that are expected to help to reduce its CO2 emissions over time such as improving fuel efficiency, fleet renewal, aircraft retrofits and promoting the commercialization of sustainable aviation alternative fuels.

Other Regulations. Our operations are subject to a variety of other environmental laws and regulations both in the United States and internationally. These include noise-related restrictions on aircraft types and operating times and state and local air quality initiatives which have, or could in the future, result in curtailments in services, increased operating costs, limits on expansion, or further emission reduction requirements. Certain airports and/or governments, both domestically and internationally, either have or are seeking to establish environmental fees and other requirements applicable to carbon emissions, local air quality pollutants and/or noise. The implementation of state plans to achieve national standards for ozonethese requirements is expected to result in restrictions on mobile sources such as cars, trucks and airport ground support equipment in somecorresponding locations.

Certain states may also elect to impose restrictions apart from the revised national standards. Finally, environmental cleanup laws could require the Company to undertake or subject the Company to liability for investigation and remediation costs at certain owned or leased locations or third partythird-party disposal locations.

Until applicability of new regulations to our specific operations is better defined and/or until pending regulations are finalized, future costs to comply with such regulations will remain uncertain but are likely to increase our operating costs over time. While we continue to monitor these developments, the precise nature of future requirements and their applicability to the Company are difficult to predict, but the financial impact to the Company and the aviation industry could be significant.


Employees

As of December 31, 2017,2019, UAL, including its subsidiaries, had approximately 89,80096,000 employees. Approximately 80%84% of the Company’sCompany's employees were represented by various U.S. labor organizations.

Collective bargaining agreements between the Company and its represented employee groups are negotiated under the RLA. Such agreements typically do not contain an expiration date and instead specify an amendable date, upon which the agreement is considered “open"open for amendment.

"

On February 1, 2019, the collective bargaining agreement with the Air Line Pilots Association ("ALPA"), the labor union representing United's pilots, became amendable. The Company and ALPA are in negotiations for an amended agreement. The Company and UNITE HERE, the labor union representing United's Catering employees, started negotiations for a first collective bargaining agreement in March 2019.
The following table reflects the Company’sCompany's represented employee groups, the number of employees per represented group, union representation for each of United’s employee groups,group, and the amendable date for each employee group’sgroup's collective bargaining agreement as of December 31, 2017:    

2019:    

Employee

Group

 
Number of
Employees

 

Union

 

Agreement Open

for Amendment

Flight Attendants

 24,20322,676
 Association of Flight Attendants (the “AFA”"AFA") August 2021

PassengerFleet Service

 13,80313,299
 International Association of Machinists and Aerospace Workers (the “IAM”"IAM") December 2021

FleetPassenger Service

 12,13513,187
 IAM December 2021

Pilots

 12,25111,492
 Air Line Pilots Association, InternationalALPA January 2019
Technicians and Related & Flight Simulator Technicians 9,3189,535
 International Brotherhood of Teamsters (the “IBT”"IBT") December 2022 (a)
Storekeeper EmployeesPassenger Service - United Ground Express, Inc. 4,1551,000
 IAMMarch 2025
Catering2,577
UNITE HEREN/A
Storekeepers989
 IAM December 2021
Dispatchers 412402
 Professional Airline Flight Control Association December 2021
Fleet Tech Instructors 130111
 IAM December 2021
Load Planners 6271
 IAM December 2021
Security Officers 4551
 IAM December 2021
Maintenance Instructors 40
 IAM December 2021

UNITE HERE is attempting to organize United’s Catering Operations employees, who are currently unrepresented, and filed an application to do so

(a) The collective bargaining agreement with the National MediationIBT contains provisions that require the Company to align contract terms with other airlines' workgroups under certain conditions.
Information about Our Executive Officers
Kate Gebo. Age 51. Ms. Gebo has served as Executive Vice President Human Resources and Labor Relations of UAL and United since December 2017. From November 2016 to November 2017, Ms. Gebo served as Senior Vice President, Global Customer Service Delivery and Chief Customer Officer of United. From October 2015 to November 2016, Ms. Gebo served as Vice President of the Office of the Chief Executive Officer. From November 2009 to October 2015, Ms. Gebo served as Vice President of Corporate Real Estate of United.
Brett J. Hart. Age 50. Mr. Hart has served as Executive Vice President and Chief Administrative Officer of UAL and United since March 2019. From May 2017 to March 2019, he served as Executive Vice President, Chief Administrative Officer and General Counsel of UAL and United. From February 2012 to May 2017, he served as Executive Vice President and General Counsel of UAL and United. Mr. Hart served as acting Chief Executive Officer and principal executive officer of the Company, on an interim basis, from October 2015 to March 2016. From December 2010 to February 2012, he served as Senior Vice President, General Counsel and Secretary of UAL, United and Continental Airlines, Inc. ("Continental"). From June 2009 to December 2010, Mr. Hart served as Executive Vice President, General Counsel and Corporate Secretary at Sara Lee Corporation, a consumer food and beverage company. From March 2005 to May 2009, Mr. Hart served as Deputy General Counsel and Chief Global Compliance Officer of Sara Lee Corporation.
Gregory L. Hart. Age 54. Mr. Hart has served as Executive Vice President and Chief Operations Officer of UAL and United since February 2014. From December 2013 to February 2014, he served as Senior Vice President Operations of UAL and United. From September 2012 to December 2013, Mr. Hart served as Senior Vice President Technical Operations of United. From October 2010 to September 2012, Mr. Hart served as Senior Vice President Network of United and Continental. From

September 2008 to September 2010, Mr. Hart served as Vice President Network Strategy of Continental. Mr. Hart joined Continental in 1997.
Linda P. Jojo. Age 54. Ms. Jojo has served as Executive Vice President Technology and Chief Digital Officer of UAL and United since May 2017. From November 2014 to May 2017, Ms. Jojo served as Executive Vice President and Chief Information Officer of UAL and United. From July 2011 to October 2014, Ms. Jojo served as Executive Vice President and Chief Information Officer of Rogers Communications, Inc., a Canadian communications and media company. From October 2008 to June 2011, Ms. Jojo served as Chief Information Officer of Energy Future Holdings, a Dallas-based privately held energy company and electrical utility provider.
Chris Kenny. Age 55. Mr. Kenny has served as Vice President and Controller of UAL and United since October 2010. From September 2003 to September 2010, Mr. Kenny served as Vice President and Controller of Continental. Mr. Kenny joined Continental in 1997.
J. Scott Kirby. Age 52. Mr. Kirby has served as President of UAL and United since August 2016. Prior to joining the Company, from December 2013 to August 2016, Mr. Kirby served as President of American Airlines Group and American Airlines, Inc. Mr. Kirby also previously served as President of US Airways from October 2006 to December 2013. Mr. Kirby held significant other leadership roles at US Airways and at America West prior to the 2005 merger of those carriers, including Executive Vice President—Sales and Marketing (2001 to 2006); Senior Vice President, e-business (2000 to 2001); Vice President, Revenue Management (1998 to 2000); Vice President, Planning (1997 to 1998); and Senior Director, Scheduling and Planning (1995 to 1998). Prior to joining America West, Mr. Kirby worked for American Airlines Decision Technologies and at the Pentagon.
In December 2019, the Company announced that Mr. Kirby will become Chief Executive Officer of UAL and United following UAL's 2020 Annual Meeting of Stockholders, scheduled for May 20, 2020 (the "2020 Annual Meeting").
Gerald Laderman. Age 62. Mr. Laderman has served as Executive Vice President and Chief Financial Officer since August 2018. Mr. Laderman served as Senior Vice President Finance, Procurement and Treasurer for UAL and United from 2013 to August 2015, and again from August 2016 to May 2018. Mr. Laderman additionally was acting Chief Financial Officer from August 2015 to August 2016 and from May 2018 to August 2018. Mr. Laderman served as Senior Vice President Finance and Treasurer for the Company from 2010 to 2013. From 2001 to 2010, Mr. Laderman served as Senior Vice President of Finance and Treasurer for Continental. Mr. Laderman joined Continental in 1988 as senior director legal affairs, finance and aircraft programs.
Oscar Munoz. Age 61. Mr. Munoz has served as Chief Executive Officer of UAL and United since September 2015, and also as President of UAL and United from September 2015 until August 2016. From February 2015 to September 2015, Mr. Munoz served as President and Chief Operating Officer of CSX Corporation ("CSX"), a railroad and intermodal transportation services company, overseeing operations, sales and marketing, human resources, service design and information technology. Prior to his appointment as President and Chief Operating Officer of CSX, Mr. Munoz served as Executive Vice President and Chief Operating Officer of CSX from January 2012 to February 2015 and as Executive Vice President and Chief Financial Officer of CSX from 2003 to 2012. Mr. Munoz has been a member of the UAL Board on January 24, 2018.

of Directors since 2010.

In December 2019, the Company announced that Mr. Munoz will transition from the role of Chief Executive Officer of UAL and United following UAL's 2020 Annual Meeting and assume the role of Executive Chairman of the Board of Directors of UAL.
Andrew Nocella. Age 50. Mr. Nocella has served as Executive Vice President and Chief Commercial Officer of UAL and United since September 2017. From February 2017 to September 2017, he served as Executive Vice President and Chief Revenue Officer of UAL and United. Prior to joining the Company, from August 2016 to February 2017, Mr. Nocella served as Senior Vice President, Alliances and Sales of American Airlines, Inc. From December 2013 to August 2016, he served as Senior Vice President and Chief Marketing Officer of American Airlines, Inc. From August 2007 to December 2013, he served as Senior Vice President, Marketing and Planning of US Airways.

ITEM 1A.RISK FACTORS.

The following risk factors should be read carefully when evaluating the Company’sCompany's business and the forward-looking statements contained in this report and other statements the Company or its representatives make from time to time. Any of the following risks could materially and adversely affect the Company’sCompany's business, operating results, financial condition and the actual outcome of matters as to which forward-looking statements are made in this report.

Global

If we do not successfully execute our strategic operating plan, or if our strategic operating plan is unsuccessful, our business, operating results and financial condition could be materially and adversely affected.
We have announced several strategic plans in recent years, including several revenue-generating initiatives and plans to optimize our revenue, such as our plans to add capacity, including international expansion and new or increased service to mid-size airports, and initiatives and plans to optimize and control our costs. We also continue to explore opportunities to enhance our segmentation, including the introduction of Polaris, Basic Economy and United Premium Plus, and are implementing many programs and policies to improve the customer experience at all points in air travel. In developing our strategic operating plan, we make certain assumptions, including, but not limited to, those related to customer demand, competition, market consolidation, the availability of aircraft and the global economy. Actual economic, market and other conditions may be different from our assumptions. In 2019, our capacity growth was lower than planned due to the grounding of Boeing 737 MAX aircraft, among other factors, which adversely impacted our ability to execute our strategic operating plans. If we do not successfully execute our strategic operating plan, or if actual results vary significantly from our assumptions, our business, operating results and financial condition could be materially and adversely impacted.
Unfavorable economic and political conditions, in the United States and industry conditions constantly change and unfavorable conditionsglobally, may have a material adverse effect on the Company’sour business, operating results and financial condition.
The Company's business and operating results of operations.

The Company’s business and results of operations are significantly impacted by U.S. and global economic and industrypolitical conditions. The airline industry is highly cyclical, and the level of demand for air travel is correlated to the strength of the U.S. and global economies. The Company is a global business with operations outside of the United States from which it derives significant operating revenues. The Company’s international operations are a vital part of its worldwide airline network. Volatile economic, political and market conditions in these international regions may have a negative impact on the Company’s operating results and its ability to achieve its business objectives.

Robust demand for the Company’sCompany's air transportation services depends largely on favorable economic conditions, including the strength of the domestic and foreign economies, low unemployment levels, strong consumer confidence levels and the availability of consumer and business credit. Air transportation is often a discretionary purchase that leisure travelers may limit or eliminate during difficult economic times. Short-haul travelers, in particular, have the option to replace air travel with surface travel. In addition, during periods of unfavorable economic conditions, business travelers usually reducehistorically have reduced the volume of their travel, either due to cost-saving initiatives, the replacement of travel with alternatives such as videoconferencing, or as a result of decreased business activity requiring travel. During such periods, the Company’sCompany's business and operating results of operations may be adversely affected due to significant declines in industry passenger demand, particularly with respect to the Company’sCompany's business and premium cabin travelers, and a reduction in fare levels.

As a global business with operations outside of the United States from which it derives significant operating revenues, volatile conditions in certain international regions may have a negative impact on the Company's operating results and its ability to achieve its business objectives. The Company's international operations are a vital part of its worldwide airline network. Political disruptions and instability in certain regions can negatively impact the demand and network availability for air travel. Additionally, any deterioration in global trade relations, such as increased tariffs or other trade barriers, could result in a decrease in the demand for international air travel.
Stagnant or weakening global economic conditions either in the United States or in other geographic regions and any future volatility in U.S. and global financial and credit markets may have a material adverse effect on the Company’sCompany's revenues, operating results of operations and liquidity. If such economic conditions were to disrupt capital markets in the future, the Company may be unable to obtain financing on acceptable terms (or at all) to refinance certain maturing debt and to satisfy future capital commitments.

In June 2016, United Kingdom (“UK”) voters voted for the UK to exit the EU.

The UK parliament voted in favor of allowing the government to commence negotiations to determine the future terms of the UK’s relationship with the EU, including the terms of trade between the UK and the EU and other nations. A process of negotiation is now taking place to determine the future terms of the UK’s relationship with the EU. Depending on the outcome of these negotiations, we could face new challenges in our operations, such as instability in global financial and foreign exchange markets, including volatility in the value of the British pound and European euro, additional travel restrictions on passengers traveling between the UK and other EU countries and legal uncertainty and potentially divergent national laws and regulations. These adverse effects in European market conditions could negatively impact the Company’s business, results of operations and financial condition.

In addition, significant or volatile changes in exchange rates between the U.S. dollar and other currencies may have a material adverse impact upon the Company’s liquidity, revenues, costs and operating results.

The airline industry is highly competitive and susceptible to price discounting and changes in capacity, which could have a material adverse effect on the Company.

our business, operating results and financial condition.

The U.S. airline industry is characterizedhighly competitive, marked by substantial pricesignificant competition including fromlow-cost carriers. The significant market presencewith respect to routes, fares, schedules (both timing and frequency), services, products, customer service and frequent flyer programs. Consolidation in the airline industry, the rise oflow-cost well-funded government sponsored international carriers, which engagechanges in substantial price discounting, may diminish our abilityinternational alliances and the creation of immunized JBAs have altered and are expected to achieve sustained profitability on domesticcontinue to alter the competitive landscape in the industry, resulting in the formation of airlines and international routes.

alliances with increased financial resources, more extensive global networks and services and competitive cost structures.

Airlines also compete for market share by increasing or decreasing their capacity, including route systems and the number of marketsdestinations served. Several of the Company’sCompany's domestic and international competitors have increased their international capacity by including service to some destinations that the Company currently serves, causing overlap in destinations served, and therefore, increasing competition for those destinations. This increased competition in both domestic and international markets may have


a material adverse effect on the Company’sCompany's business, operating results and financial condition.
The Company's U.S. operations are subject to competition from traditional network carriers, national point-to-point carriers, and discount carriers, including low-cost carriers and ultra-low-cost carriers. Such carriers may have lower costs and provide service at lower fares to destinations also served by the Company. The significant presence of operations,low-cost carriers and ultra-low-cost carriers, which engage in substantial price discounting, may diminish our ability to achieve sustained profitability on domestic and international routes. Our ability to compete in the domestic market effectively depends, in part, on our ability to maintain a competitive cost structure. If we cannot maintain our costs at a competitive level, then our business, operating results and financial condition or liquidity.

Terrorist attacks or international hostilities, or the fear of terrorist attacks or hostilities, even if not made directly on the airline industry, could negatively affect the Company and the airline industry.

The terrorist attacks on September 11, 2001 involving commercial aircraft severely and adversely impacted the Company’s financial condition and results of operations, as well as the prospects for the airline industry. Among the effects experienced from the September 11, 2001 terrorist attacks were substantial flight disruption costs caused by theFAA-imposed temporary grounding of the U.S. airline industry’s fleet, significantly increased security costs and associated passenger inconvenience, increased insurance costs, substantially higher ticket refunds and significantly decreased traffic and passenger revenue.

Additional terrorist attacks, even if not made directly on the airline industry, or the fear of or the precautions taken in anticipation of such attacks (including elevated national threat warnings, travel restrictions or selective cancellation or redirection of flights) couldbe materially and adversely affectaffected.

Our international operations are subject to competition from both foreign and domestic carriers. Competition is significant from government subsidized competitors from certain Middle East countries. These carriers have large numbers of international widebody aircraft on order and are increasing service to the CompanyU.S. from their hubs in the Middle East. The government support provided to these carriers has allowed them to grow quickly, reinvest in their product, invest in other airlines and expand their global presence. We also face competition from foreign carriers operating under "fifth freedom" rights permitted under international treaties that allow certain carriers to provide service to and from stopover points between their home country and ultimate destination, including points in the airline industry. WarsUnited States, in competition with service provided by us.
Through alliance and other marketing and codesharing agreements with foreign carriers, U.S. carriers have increased their ability to sell international hostilitiestransportation, such as services to and beyond traditional global gateway cities. Similarly, foreign carriers have obtained increased access to interior U.S. passenger traffic beyond traditional U.S. gateway cities through these relationships. In addition, several JBAs among U.S. and foreign carriers have received grants of antitrust immunity allowing the participating carriers to coordinate schedules, pricing, sales and inventory. If we are not able to continue participating in these types of alliance and other marketing and codesharing agreements in the future, our business, operating results and financial condition could alsobe materially and adversely affected.
High and/or volatile fuel prices or significant disruptions in the supply of aircraft fuel could have a material adverse impact on the Company’sCompany's strategic plans, operating results, financial condition liquidity and resultsliquidity.
Aircraft fuel is critical to the Company's operations and is one of operations.our largest operating expenses. During the year ended December 31, 2019, the Company's fuel expense was approximately $9.0 billion. The Company’stimely and adequate supply of fuel to meet operational demand depends on the continued availability of reliable fuel supply sources, as well as related service and delivery infrastructure. Although the Company has some ability to cover short-term fuel supply and infrastructure disruptions at some major demand locations, it depends significantly on the continued performance of its vendors and service providers to maintain supply integrity. Consequently, the Company can neither predict nor guarantee the continued timely availability of aircraft fuel throughout the Company's system.
Aircraft fuel has historically been the Company's most volatile operating expense due to the highly unpredictable nature of market prices for fuel. The Company generally sources fuel at prevailing market prices. Market prices for aircraft fuel have historically fluctuated substantially in short periods of time and continue to be highly volatile due to a dependence on a multitude of unpredictable factors beyond the Company's control. These factors include changes in global crude oil prices, the balance between aircraft fuel supply and demand, natural disasters, prevailing inventory levels and fuel production and transportation infrastructure. Prices of fuel are also impacted by indirect factors, such as geopolitical events, economic growth indicators, fiscal/monetary policies, fuel tax policies, changes in regulations, environmental concerns and financial resourcesinvestments in energy markets. Both actual changes in these factors, as well as changes in related market expectations, can potentially drive rapid changes in fuel prices in short periods of time.
Given the highly competitive nature of the airline industry, the Company may not be sufficientable to absorbincrease its fares and fees sufficiently to offset the adverse effectsfull impact of increases in fuel prices, especially if these increases are significant, rapid and sustained. Further, any such fare or fee increase may not be sustainable, may reduce the general demand for air travel and may also eventually impact the Company's strategic growth and investment plans for the future. In addition, decreases in fuel prices for an extended period of time may result in increased industry capacity, increased competitive actions for market share and lower fares or surcharges. If fuel prices were to then subsequently rise quickly, there may be a lag between the rise in fuel prices and any improvement of the revenue environment.
To protect against increases in the market prices of fuel, the Company may hedge a portion of its future terrorist attacks or other international hostilities.

Increasing privacy and data security obligations or a significant data breach may adversely affect the Company’s business.

fuel requirements. The Company is subjectdoes not currently hedge its future fuel requirements. However, to increasing legislative, regulatorythe extent the Company decides to start a hedging program, such hedging program may not be successful in mitigating higher fuel costs, and customer focus on privacy issuesany price protection provided may be limited due to the choice of hedging instruments and data security. Also, a numbermarket conditions, including breakdown of correlation between hedging instrument and market price of aircraft fuel and failure of hedge counterparties. To the Company’s commercial partners, including credit card companies, have imposed data security standardsextent that the Company must meetdecides to hedge a portion of its future fuel requirements and these standards continueuses hedge contracts that have the potential to evolve. Thecreate an obligation


to pay upon settlement if fuel prices decline significantly, such hedge contracts may limit the Company's ability to benefit fully from lower fuel prices in the future. If fuel prices decline significantly from the levels existing at the time the Company will continue its efforts to meet its privacy and data security obligations; however, it is possible that certain new obligationsenters into a hedge contract, the Company may be difficultrequired to meet andpost collateral (margin) beyond certain thresholds. There can be no assurance that the Company's hedging arrangements, if any, will provide any particular level of protection against rises in fuel prices or that its counterparties will be able to perform under the Company's hedging arrangements. Additionally, deterioration in the Company's financial condition could increasenegatively affect its ability to enter into new hedge contracts in the Company’s costs. Additionally, the Company must manage evolving cybersecurity risks. The loss, disclosure, misappropriation of or access to customers’, employees’ or business partners’ information or the Company’s failure to meet its obligations could result in legal claims or proceedings, liability or regulatory penalties. A significant data breach or the Company’s failure to meet its obligations may adversely affect the Company’s reputation, business, results of operations and financial condition.

future.

The Company relies heavily on technology and automated systems to operate its business and any significant failure or disruption of the technology or these systems could materially harm its business.

The Company depends on automated systems and technology to operate its business, including, but not limited to, computerized airline reservation systems, demand prediction software, flight operations systems, revenue management systems, accounting systems, technical and business operations systems, telecommunication systems and commercial websites and applications, including www.united.com. United’swww.united.com and the United Airlines app. United's website and other automated systems must be able to accommodate a high volume of traffic, maintain secure information and deliver important flight and schedule information, as well as process critical financial transactions. These systems could suffer substantial or repeated disruptions due to various events, some of which are beyond the Company’sCompany's control, including natural disasters, power failures, terrorist attacks, equipment or software failures computer viruses or cyber security attacks. We have initiatives in place to prevent disruptions and disaster recovery plans, and we continue to invest in improvements to these initiatives and plans; however, these measures may not be adequate to prevent or mitigate disruptions. Substantial or repeated systems failures or disruptions, including failures or disruptions related to the Company’sCompany's complex integration of systems, could reduce the attractiveness of the Company’sCompany's services versus those of its competitors, materially impair its ability to market its services and operate its flights, result in the unauthorized release of confidential or otherwise protected information, result in increased costs, lost revenue and the loss or compromise of important data, and may adversely affect the Company’sCompany's business, operating results and financial condition.
The Company's business relies extensively on third-party service providers, including certain technology providers. Failure of these parties to perform as expected, or interruptions in the Company's relationships with these providers or their provision of services to the Company, could have a material adverse effect on the Company's business, operating results and financial condition.
The Company has engaged third-party service providers to perform a large number of functions that are integral to its business, including regional operations, operation of customer service call centers, distribution and sale of airline seat inventory, provision of information technology infrastructure and services, transmitting or uploading of data, provision of aircraft maintenance and repairs, provision of various utilities, performance of aircraft fueling operations and catering services, among other vital functions and services. The Company does not directly control these third-party service providers, although generally it does enter into agreements that define expected service performance and compliance requirements, such as compliance with legal requirements, including anti-corruption laws; however, there can be no assurance that our third-party service providers will adhere to these requirements.
Any of these third-party service providers, however, may materially fail to meet its service performance commitments to the Company or may suffer disruptions to its systems that could impact its services. For example, failures in certain third-party technology or communications systems may cause flight delays or cancellations. The failure of any of the Company's third-party service providers to perform its service obligations adequately, or other interruptions of services, may reduce the Company's revenues and increase its expenses, prevent the Company from operating its flights and providing other services to its customers or result in adverse publicity or harm to our brand. We may also be subject to consequences from any illegal conduct of our third-party service providers, including for their failure to comply with anti-corruption laws, such as the U.S. Foreign Corrupt Practices Act. In addition, the Company's business and financial performance could be materially harmed if its customers believe that its services are unreliable or unsatisfactory.
The Company may also have disagreements with such providers or such contracts may be terminated or may not be extended or renewed. For example, the number of flight reservations booked through third-party GDSs or online travel agents ("OTAs") may be adversely affected by disruptions in the business relationships between the Company and these suppliers. Such disruptions, including a failure to agree upon acceptable contract terms when contracts expire or otherwise become subject to renegotiation, may cause the Company's flight information to be limited or unavailable for display by the affected GDS or OTA operator, significantly increase fees for both the Company and GDS/OTA users and impair the Company's relationships with its customers and travel agencies. Any such disruptions or contract terminations may adversely impact our operations and financial results.
If we are not able to negotiate or renew agreements with third-party service providers, or if we renew existing agreements on less favorable terms, our operations and financial results may be adversely affected.

The Company could experience adverse publicity, harm to its brand, reduced travel demand and potential tort liability as a result of an accident, catastrophe or incident involving its aircraft or its operations, the aircraft or operations of its regional carriers, the aircraft or operations of its codeshare partners, or the aircraft or operations of another airline, which may result in a material adverse effect on the Company's business, operating results and financial condition.

An accident, catastrophe or incident involving an aircraft that the Company operates, or an aircraft that is operated by a codeshare partner, one of the Company's regional carriers or another airline, or an incident involving the Company's operations, or the operations of a codeshare partner, one of the Company's regional carriers or of another airline, could have a material adverse effect on the Company if such accident, catastrophe or incident created a public perception that the Company's operations, or the operations of its codeshare partners or regional carriers, are not safe or reliable, or are less safe or reliable than other airlines. Additionally, any accident, catastrophe or incident involving an aircraft type that is operated by the Company, its codeshare partners or regional carriers could have a material adverse effect on the Company if such accident, catastrophe or incident creates a public perception that such aircraft type was not safe or reliable. Such public perception could, in turn, result in adverse publicity for the Company, cause harm to the Company's brand and reduce travel demand on the Company's flights, or the flights of its codeshare partners or regional carriers.

In addition, any such accident, catastrophe or incident involving the Company, its regional carriers or its codeshare partners could expose the Company to significant tort liability. Although the Company currently maintains liability insurance in amounts and of the type the Company believes to be consistent with industry practice to cover damages arising from any such accident, catastrophe or incident, and the Company's codeshare partners and regional carriers carry similar insurance and generally indemnify the Company for their operations, if the Company's liability exceeds the applicable policy limits or the ability of another carrier to indemnify it, the Company could incur substantial losses from an accident, catastrophe or incident which may result in a material adverse effect on the Company's operating results and financial condition.
Terrorist attacks, international hostilities or other security events, or the fear of terrorist attacks or hostilities, even if not made directly on the airline industry, could negatively affect the Company and the airline industry.
Terrorist attacks or international hostilities, even if not made on or targeted directly at the airline industry, or the fear of or the precautions taken in anticipation of such attacks (including elevated national threat warnings, travel restrictions, selective cancellation or redirection of flights and new security regulations) could materially and adversely affect the Company and the airline industry. Security events pose a significant risk to our passenger and cargo operations. These events could include acts of violence in public areas that we cannot control. The Company's financial resources may not be sufficient to absorb the adverse effects of any future terrorist attacks, international hostilities or other security events. Any such events could have a material adverse impact on the Company's financial condition, liquidity and operating results.
Increasing privacy and data security obligations or a significant data breach may adversely affect the Company's business.
In our regular business operations, we collect, transmit, process and store sensitive data, including personal information of our customers and employees such as payment processing information and information of our business partners. The Company depends on the ability to use information we collect to provide our services and operate our business.
The Company must manage increasing legislative, regulatory and consumer focus on privacy issues and data security. For example, in May 2018, the EU's General Data Protection Regulation became effective, which imposes significant privacy and data security requirements, as well as potential for substantial penalties for non-compliance. Recent penalties imposed by regulators have resulted in substantial adverse financial consequences to those companies. Also, some of the Company's commercial partners, such as credit card companies, have imposed data security standards that the Company must meet. These standards continue to evolve. The Company will continue its efforts to meet its privacy and data security obligations; however, it is possible that certain new obligations or customer expectations may be difficult to meet and could increase the Company's costs.
Additionally, the Company must manage evolving cybersecurity risks. Our network systems and storage applications, and those systems and storage and other business applications maintained by our third-party providers, may be subject to attempts to gain unauthorized access, breach, malfeasance or other system disruptions. In some cases, it is difficult to anticipate or to detect immediately such incidents and the damage caused thereby. In addition, as attacks by cybercriminals become more sophisticated, frequent and intense, the costs of proactive defense measures may increase. While we continually work to safeguard our internal network systems, including through risk assessments, system monitoring, information security policies and employee awareness and training, and review and validate our third-party security standards, there is no assurance that such actions will be sufficient to prevent cyber-attacks or data breaches.
The loss, disclosure, misappropriation of or access to customers', employees' or business partners' information or the Company's failure to meet its obligations could result in legal claims or proceedings, penalties and remediation costs. A

significant data breach or the Company's failure to meet its obligations may adversely affect the Company's reputation, relationships with our business partners, business, operating results and financial condition.
The mandatory grounding of our Boeing 737 MAX 9 aircraft may have a material adverse effect on our business, operating results and financial condition.
On March 13, 2019, the Federal Aviation Administration issued an emergency order prohibiting the operation of Boeing 737 MAX series aircraft by U.S. certificated operators (the "FAA Order"). As a result, the Company grounded all 14 Boeing 737 MAX 9 aircraft in its fleet and Boeing also suspended deliveries of new Boeing 737 MAX series aircraft. The Company does not know whether, on what conditions or when the MAX grounding will end. The long-term operational and financial impact of this grounding is uncertain and could negatively affect the Company based on a number of factors, including, among others, the period of time the aircraft are unavailable, the availability of replacement aircraft, to the extent needed, and the circumstances of any reintroduction of the grounded aircraft to service.
In 2019, the grounding affected the delivery of 16 Boeing 737 MAX aircraft that were scheduled for delivery and were not delivered, and it is also expected to affect the timing of future Boeing 737 MAX aircraft deliveries, including the 28 Boeing 737 MAX aircraft that the Company planned to take delivery in 2020. The extent of the delay of future deliveries is expected to be impacted by the length of time the FAA Order remains in place, Boeing's production rate and the pace at which Boeing can deliver aircraft following the lifting of the FAA Order, among other factors.
The Company continues to make adjustments to its flight schedule and operations, including substituting replacement aircraft on routes originally intended to be flown by Boeing 737 MAX aircraft. The grounding has impacted the Company's ability to implement its strategic growth strategy, reducing the Company's scheduled capacity from its planned capacity, and has resulted in increased costs as well as lower operating revenue. The Company has had discussions with Boeing regarding compensation from Boeing for the Company's financial damages related to the grounding of the airline's Boeing 737 MAX aircraft; however, the parties have not agreed to any settlement, and the amount, nature and timing of any settlement with Boeing remains uncertain.
Disruptions to our regional network and United Express flights provided by third-party regional carriers could adversely affect our business, operating results and financial condition.
The Company has contractual relationships with various regional carriers to provide regional aircraft service branded as United Express. These regional operations are an extension of the Company's mainline network and complement the Company's operations by carrying traffic that connects to mainline service and allows flights to smaller cities that cannot be provided economically with mainline aircraft. The Company's business and operations are dependent on its regional flight network, with regional capacity accounting for approximately 11% of the Company's total capacity for the year ended December 31, 2019.
Although the Company has agreements with its regional carriers that include contractually agreed performance metrics, each regional carrier is a separately certificated commercial air carrier and the Company does not control the operations of these carriers. A number of factors may impact the Company's regional network, including weather-related effects and seasonality. In addition, the decrease in qualified pilots driven by changes to federal regulations has adversely impacted and could continue to affect the Company's regional flying. For example, the FAA's expansion of minimum pilot qualification standards, including a requirement that a pilot have at least 1,500 total flight hours, as well as the FAA's revised pilot flight and duty time requirements under Part 117 of the Federal Aviation Regulations, have contributed to a smaller supply of pilots available to regional carriers. The decrease in qualified pilots resulting from the regulations as well as factors including a decreased student pilot population and a shrinking U.S. military from which to hire qualified pilots, could adversely impact the Company's operations and financial condition, and could also require the Company to reduce regional carrier flying.
If a significant disruption occurs to the Company's regional network or flights or if one or more of the regional carriers with which the Company has relationships is unable to perform their obligations over an extended period of time, there could be a material adverse effect on the Company's business, operating results and financial condition.
Current or future litigation and regulatory actions, or failure to comply with the terms of any settlement, order or arrangement relating to these actions, could have a material adverse impact on the Company.

From time to time, we are subject to litigation and other legal and regulatory proceedings relating to our business or investigations or other actions by governmental agencies, including as described in Part I, Item 3, Legal Proceedings, of this report. No assurances can be given that the results of these or new matters will be favorable to us. An adverse resolution of lawsuits, arbitrations, investigations or other proceedings or actions could have a material adverse effect on our financial condition and operating results, of operations, including as a result ofnon-monetary remedies, and could also result in adverse publicity. Defending ourselves in these matters may be time-consuming, expensive and disruptive to normal business operations and may

result in significant expense and a diversion of management’smanagement's time and attention from the operation of our business, which could impede our ability to achieve our business objectives. Additionally, any amount that we may be required to pay to satisfy a judgment, settlement, fine or penalty may not be covered by insurance. If we fail to comply with the terms contained in any settlement, order or agreement with a governmental authority relating to these matters, we could be subject to criminal or civil penalties, which could have a material adverse impact on the Company. Under our charter and certain indemnification agreements that we have entered into (and may in the future enter into) with our officers, directors and certain third parties, we could be required to indemnify and advance expenses to them in connection with their involvement in certain actions, suits, investigations and other proceedings. There can be no assurance that any of these payments will not be material.

Disruptions

Our significant investments in other airlines, including in other parts of the world, and the commercial relationships that we have with those carriers may not produce the returns or results we expect.
An important part of our strategy to expand our global network includes making significant investments in airlines both domestically and in other parts of the world and expanding our commercial relationships with these carriers. For example, in January 2019, we completed the acquisition of a 49.9% interest in ManaAir LLC, which, as of immediately following the closing of that investment, owns 100% of the equity interests in ExpressJet Airlines LLC, a domestic regional airline. We also have minority equity interests in CommutAir and Republic Airways Holdings Inc. See Note 9 to the Company’sfinancial statements included in Part II, Item 8 of this report for additional information regarding our investments in regional networkairlines. We also have significant investments in Latin American airlines, including significant investments in Avianca Holdings, S.A. ("AVH") and United Express flights provided by third-partyBRW Aviation LLC ("BRW"), an affiliate of Synergy Aerospace Corporation and the majority shareholder of AVH, and an equity investment in Azul. See Note 8 and Note 9 to the financial statements included in Part II, Item 8 of this report for additional information regarding our investments in AVH and Azul, respectively. See also the additional risks with respect to our investment in AVH described in this Part I, Item 1A. Risk Factors.
We expect to continue exploring similar non-controlling investments in, and entering into JBAs, commercial agreements, loan transactions and strategic alliances with, other carriers as part of our regional carriers could adversely affect the Company’s operations and financial condition.

The Company has contractualglobal business strategy. These transactions and relationships with various regional carriersinvolve significant challenges and risks, and we face competition in forming and maintaining these relationships, since there are a limited number of potential arrangements and other airlines are looking to provide regional aircraft service branded as United Express. These regional operations are an extension of the Company’s mainline network and complement the Company’s operations by carrying traffic that connects to mainline service and allows flights to smaller cities that cannot be provided economically with mainline aircraft. The Company’s business and operationsenter into similar relationships. We are dependent on its regional flightthese other carriers for significant aspects of our network in the regions in which they operate. While we work closely with regional capacity accounting for approximately 11%these carriers, each is a separately certificated commercial air carrier, and we do not have control over their operations, strategy, management or business methods. And not only are these airlines subject to a number of the Company’s totalsame risks as our business, which are described elsewhere in this Part I, Item 1A. Risk Factors, including competitive pressures on pricing, demand and capacity, forchanges in aircraft fuel pricing, and the year ended December 31, 2017.

Although the Company has agreements with its regional carriers that include contractually agreed performance metrics, the Company does not control theimpact of global and local political and economic conditions on operations and customer travel patterns, among others, they are also subject to their own distinct financial and operational risks.

As a result of these carriers. A numberand other factors, we may not realize a satisfactory return on our investment, and we may not receive repayment of factorsany invested or loaned funds. Further, these investments may not generate the revenue or operational synergies we expect, and they may distract management focus from our operations or other strategic options. Finally, our reliance on these other carriers in the regions in which they operate may negatively impact the Company’sour regional network, including weather-related effects and seasonality. In addition, the decrease in qualified pilots driven by federal regulations has adversely impacted and could continue to affect the Company’s regional flying. For example, the FAA’s expansion of minimum pilot qualification standards, including a requirement that a pilot have at least 1,500 total flight hours, as well as the FAA’s revised pilot flight and duty time rules, effective January 2014, have contributed to a smaller supply of pilots available to regional carriers. The decrease in qualified pilots resulting from the regulations as well as factors including a decreased student pilot population and a shrinking U.S. military from which to hire qualified pilots, could adversely impact the Company’sglobal operations and financial condition, and also require the Company to reduce regional carrier flying.

If a significant disruption occurs to the Company’s regional networkresults if those carriers are impacted by general business risks or flightsperform below our expectations or ifneeds. Any one or more of these events could have a material adverse effect on our operating results or financial condition.

We may also be subject to consequences from any illegal conduct of JBA partners, including for failure to comply with anti-corruption laws such as the regionalU.S. Foreign Corrupt Practices Act. Furthermore, our relationships with these carriers may be subject to the laws and regulations of non-U.S. jurisdictions in which these carriers are located or conduct business. In addition, any political or regulatory change in these jurisdictions that negatively impacts or prohibits our arrangements with whichthese carriers could have an adverse effect on our operating results or financial condition. To the Company has relationships is unable to perform their obligationsextent that the operations of any of these carriers are disrupted over an extended period of time or their actions subject us to the consequences of failure to comply with laws and regulations, our operating results may be adversely affected.
Our significant investments in AVH and its affiliates, and the commercial relationships that we have with Avianca may not produce the returns or results we expect.
In November 2018, as part of our global network strategy, United entered into a revenue-sharing JBA with Avianca, a subsidiary of AVH, Copa and several of their respective affiliates, subject to regulatory approval. Concurrently with this transaction, United, as lender, entered into a Term Loan Agreement (the "BRW Term Loan Agreement") with, among others, BRW Aviation Holding LLC ("BRW Holding") and BRW, as guarantor and borrower, respectively. Pursuant to the BRW Term Loan Agreement, United provided to BRW a $456 million term loan (the "BRW Term Loan"), secured by a pledge of BRW's equity, as well as BRW's 516 million common shares of AVH (which are eligible to be converted into the same number of

preferred shares, which maybe be deposited with the depositary for AVH's American Depositary Receipts ("ADRs"), the class of AVH securities that trades on the New York Stock Exchange (the "NYSE"), in exchange for 64.5 million ADRs) (such shares and equity, collectively, the "BRW Loan Collateral"). BRW is currently in default under the BRW Term Loan Agreement. In order to protect the value of its collateral, on May 24, 2019, United began to exercise certain remedies available to it under the terms of the BRW Term Loan Agreement and related documents. In connection with the delivery by United of a notice of default to BRW, Kingsland Holdings Limited ("Kingsland"), AVH's largest minority shareholder, was granted, in accordance with the agreements related to the BRW Term Loan Agreement, authority to manage BRW, which remains the majority shareholder of AVH. After a hearing on September 26, 2019, a New York state court granted Kingsland summary judgment authorizing it to foreclose on the BRW Loan Collateral under the BRW Term Loan Agreement. Kingsland is continuing with the foreclosure process, which is expected to result in a judicially supervised sale of the BRW Loan Collateral. The New York state court also granted Kingsland's motion for a preliminary injunction that, among other things, enjoins BRW Holding from interfering with Kingsland's ability to exercise voting and other rights in certain equity interests in BRW. These rulings are intermediate steps in the judicial foreclosure process in New York and are subject to appeal. The repayment of the BRW Term Loan is dependent on this judicial foreclosure process and there is no assurance that a judicial foreclosure sale will be completed, or, if completed, will result in the full satisfaction of all of the obligations under the BRW Term Loan. Our ability to enforce a deficiency judgment against BRW in the event that the proceeds from the sale of the BRW Loan Collateral in the judicial foreclosure are insufficient to repay the full amount of the BRW Term Loan may be limited. Any of these circumstances may lead to a loss or delay in the repayment of the BRW Term Loan. Further, the amount we receive from the foreclosure sale of the BRW Loan Collateral may be inadequate to fully pay the amounts owed to us by BRW and our costs incurred to foreclose, repossess and sell the property.
In November 2019, United entered into a senior secured convertible term loan agreement (the "AVH Convertible Loan Agreement") with, among others, AVH, as borrower, for the provision by the lenders thereunder (including United) to AVH of convertible term loans for general corporate purposes. In December 2019, United provided such a convertible term loan to AVH under the Convertible Loan Agreement in the aggregate amount of $150 million (the "AVH Convertible Loan").
See Note 8 to the financial statements included in Part II, Item 8 of this report for additional information regarding our investments in AVH and its affiliates.
These transactions and relationships involve significant challenges and risks, particularly given AVH's recent debt restructuring and the judicial foreclosure process to which the repayment of the BRW Term Loan is subject. While AVH has successfully carried out its debt restructuring plan to date, there is no guarantee that such debt restructuring plan will improve AVH's long-term financial condition, United's exposure to which has increased with the completion of the AVH Convertible Loan. While we work closely with Avianca in connection with the JBA, and have supported AVH by providing capital in the form of the AVH Convertible Loan, Avianca is a separately certificated commercial air carrier, and we do not have control over its or AVH's operations, strategy, management or business methods. Avianca is also subject to a number of the same risks as our business, which are described in this Part I, Item 1A, Risk Factors, including competitive pressures on pricing, demand and capacity, changes in aircraft fuel pricing, and the impact of global and local political and economic conditions on operations and customer travel patterns, among others, as well as to its own distinct financial and operational risks.
In addition, the value of the BRW Loan Collateral and the collateral securing the AVH Convertible Loan is subject to market and other conditions. Changes in the aviation market may adversely affect the value of the BRW Loan Collateral and the collateral securing the AVH Convertible Loan and thereby lower the value to be derived from a foreclosure or other exercise of remedies with respect to the BRW Term Loan Agreement or the AVH Convertible Loan. As a result of these and other factors, including delays in foreclosure proceedings, we may not receive full repayment of our BRW Term Loan or our AVH Convertible Loan, and we may be unable to realize the full value of the BRW Loan Collateral or the collateral securing the AVH Convertible Loan. As a consequence, we may not realize a satisfactory return on our invested or loaned funds with respect to AVH and its affiliates.
Further, these investments may not generate the revenue or operational synergies we expect, and they may distract management focus from our operations or other strategic options. Finally, our reliance on Avianca in the region in which it operates may negatively impact our global operations and results if AVH does not successfully recover from its debt restructuring or is otherwise impacted by general business risks or performs below our expectations or needs. Any one or more of these events could behave a material adverse effect on our operating results or financial condition.
The airline industry may undergo further change with respect to alliances and JBAs or due to consolidations, any of which could have a material adverse effect on the Company’s business, financial conditionCompany.
The Company faces, and operations.

The Company’s business relies extensively on third-party service providers. Failuremay continue to face, strong competition from other carriers due to the modification of these partiesalliances and formation of new JBAs. Carriers may improve their competitive positions through airline alliances, slot swaps and/or JBAs. Certain types of airline JBAs further competition by allowing multiple airlines to performcoordinate routes, pool revenues and costs,


and enjoy other mutual benefits, achieving many of the benefits of consolidation. Open Skies agreements, including the longstanding agreements between the United States and each of the EU, Canada, Japan, Korea, New Zealand, Australia, Colombia and Panama, as expected,well as the more recent agreements between the United States and each of Mexico and Brazil, may also give rise to better integration opportunities among international carriers. Movement of airlines between current global airline alliances could reduce joint network coverage for members of such alliances while also creating opportunities for JBAs and bilateral alliances that did not exist before such realignment. Further airline and airline alliance consolidations or interruptionsreorganizations could occur in the Company’s relationships with these providers or their provision of services to the Company, could have an adverse effect on the Company’s financial position and results of operations.

future. The Company has engaged third-party service providers to perform a large numberroutinely engages in analyses and discussions regarding its own strategic position, including current and potential alliances, asset acquisitions and divestitures and may have future discussions with other airlines regarding strategic activities. If other airlines participate in such activities, those airlines may significantly improve their cost structures or revenue generation capabilities, thereby potentially making them stronger competitors of functions that are integral to its business, including regional operations, operation of customer service call centers, distribution and sale of airline seat inventory, provision of information technology infrastructure and services, transmitting or uploading of data, provision of aircraft maintenance and repairs, provision of various utilities and performance of aircraft

fueling operations, and catering services, among other vital functions and services. The Company does not directly control these third-party service providers, although it does enter into agreements with most of them that define expected service performance. Any of these third-party service providers, however, may materially fail to meet their service performance commitments to the Company, may suffer disruptions to their systems that could impact their services, or the agreements with such providers may be terminated. For example, flight reservations booked by customers and travel agencies via third-party GDSs may be adversely affected by disruptions in the business relationships between the Company and GDS operators. Such disruptions, including a failurepotentially impairing the Company's ability to agree upon acceptable contract terms when contracts expire or otherwise become subject to renegotiation, may cause the Company’s flight information to be limited or unavailable for display, significantly increase fees for both the Company and GDS users and impair the Company’s relationships withrealize expected benefits from its customers and travel agencies. The failure of any of the Company’s third-party service providers to perform their service obligations adequately, or other interruptions of services, may reduce the Company’s revenues and increase its expenses, prevent the Company from operating its flights and providing other services to its customers or result in adverse publicity or harm to its brand. In addition, the Company’s business and financial performance could be materially harmed if its customers believe that its services are unreliable or unsatisfactory.

own strategic relationships.

Orders for new aircraft typically must be placed years in advance of scheduled deliveries, and changes in the Company’s routeCompany's network strategy over time or other factors outside of the Company's control may make aircraft on order less economic for the Company, but anyresult in costs related to modification or termination of suchaircraft orders could result in material liabilityor cause the Company to enter into orders for the Company.

new aircraft on less favorable terms.

The Company’sCompany's orders for new aircraft are typically made years in advance of actual delivery of such aircraft, and the financial commitment required for purchases of new aircraft is substantial. At December 31, 2017,2019, the Company had firm commitments to purchase 228304 new aircraft from The Boeing Company (“Boeing”("Boeing"), Airbus S.A.S ("Airbus") and Airbus S.A.S (“Airbus”Embraer S.A. ("Embraer"), as well as related agreements with engine manufacturers, maintenance providers and others. AtAs of December 31, 2017,2019, the Company’sCompany's commitments relating to the acquisition of aircraft and related spare engines, aircraft improvements and other related obligations aggregated to a total of $22.2$26.7 billion.

Subsequent to the Company placing an order for new aircraft, the Company’s routeCompany's network strategy may change, such that the aircraft on order become less economic to operate flights in the Company’s network.change. As a result, the Company’sCompany's preference for a particular aircraft that it has ordered, often years in advance, may be decreased or eliminated. If the Company were to seek to modify or terminate any of its existing aircraft order commitments, it may be responsible for material obligationsliabilities to its counterparties arising from any such change. However,modification. Additionally, the Company expectsmay have a need for additional aircraft that are not available under its existing orders. In such cases, the Company may seek to acquire aircraft from other sources, such as through lease arrangements, which may result in higher costs or less favorable terms, or through the purchase or lease of used aircraft. The Company may not be able to acquire such aircraft when needed on favorable terms or at all.
The imposition of new tariffs, or any suchincrease in existing tariffs, on the importation of commercial aircraft that the Company orders may result in higher costs. For example, in October 2019, the United States imposed tariffs on certain imports from the EU, including a customs duty at an ad valorem rate of 10% on new commercial aircraft, which rate, in February 2020, was increased to 15%. These tariffs apply to certain new Airbus aircraft that we have on order. While the scope and rate of these tariffs are subject to change, that it makesif and to the extent these tariffs are imposed on us, they could increase the effective cost of, among other things, new Airbus aircraft.
A majority of the Company's aircraft and certain parts are sourced from single suppliers; therefore, the Company would be materially and adversely affected if it were unable to obtain timely deliveries, additional equipment or support from any of these suppliers.
The Company currently sources the majority of its aircraft and many related aircraft parts from Boeing. In addition, our aircraft suppliers are dependent on other suppliers for certain other aircraft parts. Therefore, if the Company is unable to acquire additional aircraft from Boeing, or if Boeing fails to make timely deliveries of aircraft or to provide adequate support for its products, the Company's operations could be materially and adversely affected. The Company is also dependent on a limited number of suppliers for aircraft engines and certain other aircraft parts and could, therefore, also be materially and adversely affected in the long-term best economic interestevent of the Company.

Theunavailability of these engines and other parts.

Union disputes, employee strikes or slowdowns, and other labor-related disruptions could adversely affect the Company's operations and could result in increased costs that impair its financial performance.
United is a highly unionized company. As of December 31, 2019, the Company could experience adverse publicity, harm toand its brand, reduced travel demandsubsidiaries had approximately 96,000 active employees, of whom approximately 84% were represented by various U.S. labor organizations. See Part I, Item 1. Business—Employees, of this report for additional information on our represented employee groups and potential tort liabilitycollective bargaining agreements.
There is a risk that unions or individual employees might pursue judicial or arbitral claims arising out of changes implemented as a result of the Company entering into collective bargaining agreements with its represented employee groups. There is also a possibility that employees or unions could engage in job actions such as slowdowns, work-to-rule campaigns, sick-outs or other

actions designed to disrupt the Company's normal operations, in an accident, catastrophe, or incident involving its aircraft or its operations,attempt to pressure the aircraft orCompany in collective bargaining negotiations. Although the RLA makes such actions unlawful until the parties have been lawfully released to self-help, and the Company can seek injunctive relief against premature self-help, such actions can cause significant harm even if ultimately enjoined. Similarly, if the operations of itsour third-party regional carriers, ground handlers or other vendors are impacted by labor-related disruptions, our operations could be adversely affected. In addition, collective bargaining agreements with the aircraftCompany's represented employee groups increase the Company's labor costs, which increase could be material.
An outbreak of disease or operations of its codeshare partners, which may result in a material adverse effect onsimilar public health threat, such as the Company’s results of operations or financial position.

An accident, catastrophe, or incident involving an aircraft that the Company operates, or an aircraft that is operated by a codeshare partner or one of the Company’s regional carriers, or an incident involving the Company’s operations,coronavirus, could have a material adverse effectimpact on the Company ifCompany's business, operating results and financial condition.

An outbreak of disease or similar public health threat, or fear of such accident, catastrophe,an event, that affects travel demand, travel behavior, or incident createdtravel restrictions could have a public perception thatmaterial adverse impact on the Company’s operations, or the operationsCompany's business, financial condition and operating results. In addition, outbreaks of its codeshare partners or regional carriers, are not safe or reliable, or are less safe or reliable than other airlines. Such public perceptiondisease could in turn, result in adverse publicityincreased government restrictions and regulation, including quarantines of our personnel or an inability to access facilities or our aircraft, which could adversely affect our operations.
In December 2019, a novel strain of coronavirus ("COVID-19") was reported in Wuhan, China. The World Health Organization has declared COVID-19 to constitute a "Public Health Emergency of International Concern." On January 30, 2020, the U.S. Department of State issued a Level 4 "do not travel" advisory for China. The U.S. government has also implemented enhanced screenings, quarantine requirements and travel restrictions in connection with the COVID-19 outbreak.  The Company has suspended its flights between the United States and each of Beijing, Chengdu, Shanghai and Hong Kong through April 24, 2020. These routes represented approximately 5% of the Company's 2020 planned capacity and the Company's other trans-Pacific routes represented an additional 10% of the Company's 2020 planned capacity. As of the date of this report, the Company cause harmis experiencing an approximately 100% decline in near-term demand to the Company’s brandChina and reduce travelan approximately 75% decline in near-term demand on the Company’s flights, or the flights of its codeshare partners or regional carriers.

In addition, any such accident, catastrophe, or incident could expose the Company to significant tort liability. Although the Company currently maintains liability insurance in amounts andrest of the typeCompany's trans-Pacific routes. The extent of the Company believes to be consistent with industry practice to cover damages arising from any such accident or catastrophe,impact of the COVID-19 on the Company's operational and financial performance will depend on future developments, including the duration and spread of the outbreak and related travel advisories and restrictions and the Company’s codeshare partnersimpact of the COVID-19 on overall demand for air travel, all of which are highly uncertain and regional carriers carry similar insurance and generally indemnify the Company for their operations, if the Company’s liability exceeds the applicable policy limits or the ability of

another carrier to indemnify it, the Company could incur substantial losses from an accident, catastrophe or incident which may result in a material adverse effectcannot be predicted. If traffic on the Company’sCompany's trans-Pacific routes were to remain at these levels for an extended period, and/or routes in other parts of the Company's network begin to see significant declines in demand, our results of operations or financial position.

for full year 2020 may be materially adversely affected.

If we experience changes in, or are unable to retain, our senior management team or other key employees, our operating results could be adversely affected.

Much of our future success depends on the continued availability of skilled personnel with industry experience and knowledge, including our senior management team and other key employees. If we are unable to attract and retain talented, highly qualified senior management and other key employees, or if we are unable to effectively provide for the succession of senior management, our business may be adversely affected.

High and/

Extended interruptions or volatile fuel prices or significant disruptions in the supply of aircraft fuelservice at major airports where we operate could have a material adverse impact on our operations.
The airline industry is heavily dependent on business models that concentrate operations in major airports in the Company’s strategic plans, operating results, financial positionUnited States and liquidity.

Aircraft fuel is critical to the Company’s operations and is one of its single largest operating expenses. The timely and adequate supply of fuel to meet operational demand depends on the continued availability of reliable fuel supply sources, as well as related service and delivery infrastructure. Although the Company has some ability to cover short-term fuel supply and infrastructure disruptions at some major demand locations, it can neither predict nor guarantee the continued timely availability of aircraft fuel throughout the Company’s system. The Company generally sources fuelworld. An extended interruption or disruption at prevailing market prices.

Aircraft fuel has historically been the Company’s most volatile operating expense due to the highly unpredictable nature of market prices for fuel. Market prices for aircraft fuelan airport where we have historically fluctuated substantially in short periods of time and continue to be highly volatile due to a dependence on a multitude of unpredictable factors beyond the Company’s control. These factors include changes in global crude oil prices, the balance between aircraft fuel supply and demand, natural disasters, prevailing inventory levels and fuel production and transportation infrastructure. Prices of fuel are also impacted by indirect factors that may potentially impact fuel supply or demand balance, such as geopolitical events, economic growth indicators, fiscal/monetary policies, fuel tax policies, environmental concerns and financial investments in energy markets. Both actual changes in these factors, as well as changes in market expectations of these factors can potentially drive rapid changes in fuel price levels in short periods of time.

Given the highly competitive nature of the airline industry, the Company may not be able to increase its fares and fees sufficiently to offset the full impact of increases in fuel prices, especially if these increases are significant rapid and sustained. Further, any such fare and fee increases may not be sustainable, may reduce the general demand for air travel and may also eventually impact the Company’s strategic growth and investment plans for the future. In addition, decreases in fuel prices for an extended period of time may result in increased industry capacity, increased competitive actions for market share and lower fares or surcharges in general. If fuel prices were to then subsequently rise quickly, there may be a lag between the rise in fuel prices and any improvement of the revenue environment.

To protect against increases in the market prices of fuel, the Company may hedge a portion of its future fuel requirements. However, the Company’s hedging program may not be successful in mitigating higher fuel costs, and any price protection provided may be limited due to choice of hedging instruments and market conditions, including breakdown of correlation between hedging instrument and market price of aircraft fuel and failure of hedge counterparties. To the extent that the Company decides to hedge a portion of its future fuel requirements and uses hedge contracts that have the potential to create an obligation to pay upon settlement if fuel prices decline significantly, such hedge contracts may limit the Company’s ability to benefit fully from lower fuel costs in the future. If fuel prices decline significantly from the levels existing at the time the Company enters into a hedge contract, the Company may be required to post collateral (margin) beyond certain thresholds. There can be no assurance that the Company’s hedging arrangements will provide any particular level of protection against rises in fuel prices or that its counterparties will be able to perform under the Company’s hedging arrangements.

Additionally, deterioration in the Company’s financial condition could negatively affect its ability to enter into new hedge contracts in the future.

Union disputes, employee strikes or slowdowns, and other labor-related disruptions could adversely affect the Company’s operations and could result in increased costs that impair its financial performance.

United is a highly unionized company. As of December 31, 2017, the Company and its subsidiaries had approximately 89,800 active employees, of whom approximately 80% were represented by various U.S. labor organizations.

There is a risk that unions or individual employees might pursue judicial or arbitral claims arising out of changes implemented as a result of the Company entering into collective bargaining agreements with its represented employee groups. There is also a possibility that employees or unions could engage in job actions such as slowdowns,work-to-rule campaigns, sick-outs or other actions designed to disrupt the Company’s normal operations, in an attempt to pressure the Company in collective bargaining negotiations. Although the RLA makes such actions unlawful until the parties have been lawfully released to self-help, and the Company can seek injunctive relief against premature self-help, such actions can cause significant harm even if ultimately enjoined. In addition, collective bargaining agreements with the Company’s represented employee groups increase the Company’s labor costs, which increase could be material for any applicable reporting period.

An outbreak of a disease or similar public health threat could have a material adverse impact on the Company’s business, financial position and results of operations.

An outbreak of a disease or similar public health threat that affects travel demand, travel behavior, or travel restrictions could have a material adverse impact on the Company’sour business, financial condition and results of operations.

Extensiveoperation.

We operate principally through our domestic hubs in at Newark, Chicago O'Hare, Denver, Houston Bush, LAX, Guam, SFO and Washington Dulles. Substantially all of our flights either originate in or fly into one of these locations. A significant interruption or disruption in service at one of our hubs or other airports where we have a significant presence resulting from ATC delays, weather conditions, natural disasters, growth constraints, relations with third-party service providers, failure of computer systems, disruptions to government agencies or personnel (including as a result of government shutdowns), disruptions at airport facilities or other key facilities used by us to manage our operations, labor relations, power supplies, fuel supplies, terrorist activities, international hostilities or otherwise could result in the cancellation or delay of a significant portion of our flights and, as a result, could have a material impact on our business, operating results and financial condition. We have minimal control over the operation, quality or maintenance of these services or whether vendors will improve or continue to provide services that are essential to our business.
The airline industry is subject to extensive government regulation, could increase the Company’s operatingwhich imposes significant costs and restrict its ability to conduct its business.

may adversely impact our business, operating results and financial condition.

Airlines are subject to extensive regulatory and legal oversight. Compliance with U.S. and international regulations imposes significant costs and may have adverse effects on the Company. Laws, regulations, taxes and airport rates and charges, both

domestically and internationally, have been proposed from time to time that could significantly increase the cost of airline operations or reduce airline revenue.

The airline industry is heavily taxed and additional taxation could negatively impact our business.

United provides air transportation under certificates of public convenience and necessity issued by the DOT. If the DOT altered, amended, modified, suspended or revoked these certificates, it could have a material adverse effect on the Company’sCompany's business. The DOT also regulates consumer protection and, through its investigations or rulemaking authority, could impose restrictions that materially impact the Company's business. The FAA regulates the safety of United’sUnited's operations. United operates pursuant to an air carrier operating certificate issued by the FAA. In 2014, the FAA’s moreThe FAA's regulations include stringent pilot flight and duty time requirements under Part 117 of the Federal Aviation Regulations, took effect, which has increased costs for all carriers. Additionally,as well as minimum qualifications took effect for air carrier first officers. These regulations will continue to impact the industry and the Company for years to come, as they have caused mainline airlines to hire regional pilots, while simultaneously significantly reducing the pool of new pilots from which regional carriers themselves can hire. Although this is an industry issue, it directly affects the Company and requireshas required it to reduce regional partner flying, as several regional partners have experienced difficulty flying their schedules due to reduced pilot availability. From time to time, the FAA also issues orders, airworthiness directives and other regulations relating to the maintenance and operation of aircraft that require material expenditures or operational restrictions by the Company. These FAA orders and directives could includehave resulted in the temporary grounding of an entire aircraft type if the FAA identifies design, manufacturing, maintenance or other issues requiring immediate corrective action.action (including the FAA Order grounding Boeing 737 MAX aircraft). These FAA directives or requirements could have a material adverse effect on the Company.

In 2018, the U.S. Congress will continue to consider legislation to reauthorizeapproved a five-year reauthorization for the FAA, which encompasses all significant aviation tax and policy-related issues. The law includes a range of policy changes related issues. As with previous reauthorization legislation,to airline customer service and aviation safety which are ongoing and, depending on how they are implemented, could impact our operations and costs. Additionally, the U.S. Congress may consider a range of policy changes thatlegislation related to aviation safety as well as environmental issues which could impact the Company’sCompany and the airline industry.
The Company's operations and costs.

In addition, the Company’s operations may also be adversely impacted due to the existing antiquated ATC system utilized by the U.S. government.government and regulated by the FAA. During peak travel periods in certain markets, the current ATC system’ssystem's inability to handle ATC demand has led to short-term capacity constraints imposed by government agencies and resulted in delays and disruptions of air traffic. In addition, the current system will not be able to effectively handle projected future air traffic growth. The outdated technologies also cause the ATC to be less resilient in the event of a failure, causing flight cancellations and delays. Imposition of these ATC constraints on a long-term basis may have a material adverse effect on the Company’sCompany's operations. Failure to update the ATC system in a timely manner and the substantial funding requirements of a modernized ATC system that may be imposed on air carriers may have an adverse impact on the Company’sCompany's financial condition or results of operations.

operating results.

Access to landing andtake-off rights, or “slots,”"slots," at several major U.S. airports and many foreign airports served by the Company are, or recently have been, subject to government regulation. Certain of the Company’sCompany's major hubs are among the most congested airports in the United States and have been or could be the subject of regulatory action that might limit the number of flights and/or increase costs of operations at certain times or throughout the day. The FAA may limit the Company’sCompany's airport access by limiting the number of departure and arrival slots at high density traffic airports, which could affect the Company’sCompany's ownership and transfer rights, and local airport authorities may have the ability to control access to certain facilities or the cost of access to their facilities, which could have an adverse effect on the Company’sCompany's business. The FAA historically has taken actions with respect to airlines’airlines' slot holdings that airlines have challenged; if the FAA were to take actions that adversely affect the Company’sCompany's slot holdings, the Company could incur substantial costs to preserve its slots or may lose slots. If slots are eliminated at an airport, or if the number of hours of operation governed by slots is reduced at an airport, the lack of controls on takeoffstake-offs and landings could result in greater congestion both at the affected airport or in the regional airspace (e.g., the New York City metropolitan region airspace) and could significantly impact the Company’sCompany's operations. Further, the Company’sCompany's operating costs at airports, including the Company’sCompany's major hubs, may increase significantly because of capital improvements at such airports that the Company may be required to fund, directly or indirectly. Such costs could be imposed by the relevant airport authority without the Company’sCompany's approval and may have a material adverse effect on the Company’sCompany's financial condition.

Many aspects of the Company’s operations are also subject to increasingly stringent federal, state, local and international laws protecting the environment. Future environmental regulatory developments, such as climate change regulations in the United States and abroad could adversely affect operations and increase operating costs in the airline industry. In addition, there is the potential for additional regulatory actions in regard to the emission of GHGs by the aviation industry. The precise nature of future requirements and their applicability to the Company are difficult to predict, but the financial impact to the Company and the aviation industry would likely be adverse and could be significant.

See Part I, Item 1, Business—Industry Regulation, of this report for additional information on government regulation impacting the Company.

Extensive government regulation on international routes could restrict the Company’s ability to conduct its business and have a material adverse effect on the Company’s financial position and results of operations.

The ability of carriers to operate flights on international routes between the United States and other countries may be subject to change.is highly regulated. Applicable arrangements between the United States and foreign governments may be amended from time to time, government policies with respect to airport operations may be revised, and the availability of appropriate slots or facilities may change. The Company currently operates a number of flights on international routes under government arrangements, regulations or policies that designate the number of carriers permitted to operate on such routes, the capacity of the carriers providing services on such routes, the airports at which carriers may operate international flights, or the number of carriers allowed access to particular airports. Any further limitations, additions or modifications to such arrangements, regulations or policies could have a material adverse effect on the Company’sCompany's financial positioncondition and results of operations.operating results. Additionally, a change in law,

regulation or policy for any of the Company’sCompany's international routes, such as Open Skies, could have a

material adverse impact on the Company’sCompany's financial positioncondition and operating results of operations and could result in the impairment of material amounts of related tangible and intangible assets. In addition, competition from revenue-sharing joint venturesJBAs and other alliance arrangements by and among other airlines could impair the value of the Company’sCompany's business and assets on the Open Skies routes. The Company’sCompany's plans to enter into or expand U.S. antitrust immunized alliances and joint venturesJBAs on various international routes are subject to receipt of approvals from applicable U.S. federal authorities and obtaining other applicable foreign government clearances or satisfying the necessary applicable regulatory requirements. There can be no assurance that such approvals and clearances will be granted or will continue in effect upon further regulatory review or that changes in regulatory requirements or standards can be satisfied.

See Part I, Item 1,1. Business—Industry Regulation, of this report for additional information on government regulation impacting the Company.

The airline industry

We are subject to many forms of environmental regulation and liability and risks associated with climate change, and may undergo further changeincur substantial costs as a result.
Many aspects of the Company's operations are subject to increasingly stringent federal, state, local and international laws protecting the environment, including those relating to emissions to the air, water discharges, safe drinking water and the use and management of hazardous materials and wastes. Compliance with respectexisting and future environmental laws and regulations can require significant expenditures and violations can lead to alliancessignificant fines and joint ventures orpenalties. In addition, from time to time we are identified as a responsible party for environmental investigation and remediation costs under applicable environmental laws due to consolidations,the disposal of hazardous substances generated by our operations. We could also be subject to environmental liability claims from various parties, including airport authorities, related to our operations at our owned or leased premises or the off-site disposal of waste generated at our facilities.
We may incur substantial costs as a result of changes in weather patterns due to climate change. Increases in the frequency, severity or duration of severe weather events such as thunderstorms, hurricanes, flooding, typhoons, tornados and other severe weather events could result in increases in delays and cancellations, turbulence-related injuries and fuel consumption to avoid such weather, any of which could haveresult in significant loss of revenue and higher costs.
To mitigate climate change risks, CORSIA has been developed by ICAO, a material adverse effect onUN specialized agency. CORSIA is intended to create a single global market-based measure to achieve carbon-neutral growth for international aviation after 2020 through airline purchases of carbon offset credits. Certain CORSIA program details remain to be developed and could potentially be affected by political developments in participating countries or the results of the pilot phase of the program, and thus the impact of CORSIA cannot be fully predicted. However, CORSIA is expected to result in increased operating costs for airlines that operate internationally, including the Company.

In addition to CORSIA, the EPA has begun preliminary work to adopt its own aircraft engine GHG emission standards, which were expected to be aligned with recent ICAO carbon dioxide emission standards. The Company facestiming of any U.S. EPA aircraft engine GHG emission standards is currently unknown, but some jurisdictions in which United operates have adopted or are considering GHG emission reduction initiatives, which could impact various aspects of the Company's business. The precise nature of future requirements and may continue to face strong competition from other carriers duetheir applicability to the modificationCompany are difficult to predict, but the financial impact to the Company and the aviation industry would likely be adverse and could be significant.
See Part I, Item 1. Business—Industry Regulation—Environmental Regulation, of alliancesthis report for additional information on environmental regulation impacting the Company.
The United Kingdom's withdrawal from the EU may adversely impact our operations in the United Kingdom and formationelsewhere.
In June 2016, United Kingdom ("UK") voters approved an advisory referendum for the UK to exit the EU. The UK parliament voted in favor of new joint ventures. Carriers may improve their competitive positions through airline alliances, slot swaps and/or joint ventures. Certain types of airline joint ventures further competition by allowing multiple airlinesthe government to coordinate routes, pool revenues and costs, and enjoy other mutual benefits, achieving manycommence negotiations to determine the future terms of the benefits of consolidation. “Open Skies” agreements,UK's relationship with the EU, including the agreementsterms of trade between the United StatesUK and the EU and other nations. On January 31, 2020, the UK withdrew from the EU, and started a transition period that will potentially run through December 31, 2020. The nature and terms of the UK's relationship with the EU after the transition period remain uncertain.
In connection with a UK exit from the EU, we could face new challenges in our operations, such as instability in global financial and foreign exchange markets. This instability could result in market volatility, including in the value of the British pound and European euro, additional travel restrictions on passengers traveling between the United StatesUK and Japan,other EU countries, changes to the legal status of EU-resident employees, legal uncertainty and divergent national laws and regulations. At this time, we cannot predict the impact that the UK's exit from the EU will have on our business generally and our UK and

European operations more specifically, and no assurance can be given that our operating results, financial condition and prospects would not be adversely impacted by the result.
The Company's operating results fluctuate due to seasonality and other factors associated with the airline industry, many of which are beyond the Company's control.
Due to greater demand for air travel during the spring and summer months, revenues in the airline industry in the second and third quarters of the year are generally stronger than revenues in the first and fourth quarters of the year, which are periods of lower travel demand. The Company's operating results generally reflect this seasonality, but have also been impacted by numerous other factors that are not necessarily seasonal, including, among others, extreme or severe weather, outbreaks of disease or pandemics, ATC congestion, geological events, political instability, terrorism, natural disasters, changes in the competitive environment due to industry consolidation, tax obligations, general economic conditions and other factors. As a result, the Company's quarterly operating results are not necessarily indicative of operating results for an entire year and historical operating results in a quarterly or annual period are not necessarily indicative of future operating results.
Increases in insurance costs or inadequate insurance coverage may also give risematerially and adversely impact our business, operating results and financial condition.
The Company could be exposed to better integration opportunities among international carriers. Movement of airlines between current global airline alliances could reduce joint network coverage for memberssignificant liability or loss if its property or operations were to be affected by a natural catastrophe or other event, including aircraft accidents. The Company maintains insurance policies, including, but not limited to, terrorism, aviation hull and liability, workers' compensation and property and business interruption insurance, but we are not fully insured against all potential hazards and risks incident to our business. If the Company is unable to obtain sufficient insurance with acceptable terms, the costs of such alliances while also creating opportunities for joint venturesinsurance increase materially, or if the coverage obtained is insufficient relative to actual liability or losses that the Company experiences, whether due to insurance market conditions, policy limitations and bilateral alliances that did not exist before such realignment. There is ongoing speculation that further airlineexclusions or otherwise, our operating results and airline alliance consolidations or reorganizationsfinancial condition could occur in the future, especially if new “Open Skies” agreements between Brazilbe materially and the United States are fully implemented. adversely affected.
The Company routinely engages in analysishas a significant amount of financial leverage from fixed obligations, and discussions regarding its own strategic position, including current and potential alliances, asset acquisitions and divestitures and may have future discussions with other airlines regarding strategic activities. If other airlines participate in such activities, those airlines may significantly improve their cost structures or revenue generation capabilities, thereby potentially making them stronger competitors of the Company and potentially impairing the Company’s ability to realize expected benefits from its own strategic relationships.

Insufficientinsufficient liquidity may have a material adverse effect on the Company’sCompany's financial positioncondition and business.

The Company has a significant amount of financial leverage from fixed obligations, including aircraft lease and debt financings, leases of airport property and other facilities, and other material cash obligations. In addition, the Company has substantial noncancelable commitments for capital expenditures, including for the acquisition of new aircraft and related spare engines.

Although the Company’sCompany's cash flows from operations and its available capital, including the proceeds from financing transactions, have been sufficient to meet these obligations and commitments to date, the Company’sCompany's future liquidity could be negatively affected by the risk factors discussed in this report, including, but not limited to, substantial volatility in the price of fuel, adverse economic conditions, disruptions in the global capital markets and catastrophic external events.

report. If the Company’sCompany's liquidity is materially diminished, due to the various risk factors noted in this report, or otherwise, the Company might not be able to timely pay its leases and debts or comply with certain operating and financial covenants under its financing and credit card processing agreements or with other material provisions of its contractual obligations. Certain of these covenants require the Company or United, as applicable, to maintain minimum liquidity and/or minimum collateral coverage ratios.

The Company’s or United’s ability to comply with these covenants may be affected by events beyond its control, including the overall industry revenue environment, the level of fuel costs and the appraised value of the collateral.

If the Company does not timely pay its leases and debts or comply with such covenants, a variety of adverse consequences could result. These potential adverse consequences include an increase of required reserves under credit card processing agreements, withholding of credit card sale proceeds by its credit card service providers, loss of undrawn lines of credit, the occurrence of one or more events of default under the relevant agreements, the acceleration of the maturity of debt and/or the exercise of other remedies by its creditors and equipment lessors that could result in a material adverse effect on the Company’s financial position and results of operations. The Company cannot provide assurance that it would have sufficient liquidity to repay or refinance such debt if it were accelerated. In addition, an event of default or acceleration of debt under certain of its financing agreements could result in one or more events of default under certain of the Company’s other financing agreements due to cross default and cross acceleration provisions.

Furthermore, insufficient liquidity may limit the Company’s ability to withstand competitive pressures and downturns in the travel business and the economy in general.

The Company’sCompany's substantial level of indebtedness andnon-investment grade credit rating, as well as market conditions and the availability of assets as collateral for loans or other indebtedness, may make it difficult for the Company to raise additional capital if needed to meet its liquidity needs on acceptable terms, or at all.

In addition, as of December 31, 2019, the Company had $3.4 billion in variable rate indebtedness, all or a portion of which uses London interbank offered rates ("LIBOR") as a benchmark for establishing applicable rates. As announced in July 2017, LIBOR is expected to be phased out by the end of 2021. Although many of our LIBOR-based obligations provide for alternative methods of calculating the interest rate payable if LIBOR is not reported, the extent and manner of any future changes with respect to methods of calculating LIBOR or replacing LIBOR with another benchmark are unknown and impossible to predict at this time and, as such, may result in interest rates that are materially higher than current interest rates. If interest rates applicable to the Company's variable interest indebtedness increase, the Company's interest expense will also increase, which could make it difficult for the Company to make interest payments and fund other fixed costs and, in turn, adversely impact our cash flow available for general corporate purposes.
See Part II, Item 7, Management’s7. Management's Discussion and Analysis of Financial Condition and Results of Operations, of this report for additional information regarding the Company’sCompany's liquidity.

Increases




Agreements governing our debt include financial and other covenants. Failure to comply with these covenants could result in insurance costsevents of default.
Our financing agreements include various financial and other covenants. Certain of these covenants require UAL or reductions in insuranceUnited, as applicable, to maintain minimum liquidity and/or minimum collateral coverage may materially and adversely impact the Company’s results of operations and financial condition.

The Company could be exposedratios. UAL's or United's ability to significant liability or loss if its property or operations were tocomply with these covenants may be affected by a natural catastrophe orevents beyond its control, including the overall industry revenue environment, the level of fuel costs and the appraised value of the collateral. In addition, our financing agreements contain other event, including aircraft accidents. The Company maintains insurance policies, including, but not limitednegative covenants customary for such financings. These covenants are subject to terrorism, aviation hullimportant exceptions and liability, workers’ compensationqualifications. If we fail to comply with these covenants and property and business interruption insurance, but we are not fully insured against all potential hazards and risks incident to our business. If the Company is unable to remedy or obtain sufficient insurance with acceptable termsa waiver or ifamendment, an event of default would result.

If an event of default were to occur, the coverage obtained is insufficient relative to actual liabilitylenders could, among other things, declare outstanding amounts immediately due and payable. In addition, an event of default or losses that the Company experiences, whetherdeclaration of acceleration under one financing agreement could also result in an event of default under other of our financing agreements due to insurance market conditions, policy limitationscross-default and exclusionscross-acceleration provisions. The acceleration of significant amounts of debt could require us to renegotiate, repay or otherwise, its results of operations and financial condition could be materially and adversely affected.

The Company’s results of operations fluctuate due to seasonality and other factors associated withrefinance the airline industry.

Due to greater demand for air travel during the spring and summer months, revenues in the airline industry in the second and third quarters of the year are generally stronger than revenues in the first and fourth quarters of the year, which are periods of lower travel demand. The Company’s results of operations generally reflect this seasonality, but have also been impacted by numerous other factors that are not necessarily seasonal, including, among others, the imposition of excise and similar taxes, extreme or severe weather, ATC congestion, geological events, natural disasters, changes in the competitive environment due to industry consolidation, general economic conditions and other factors. As a result, the Company’s quarterly operating results are not necessarily indicative of operating results for an entire year and historical operating results in a quarterly or annual period are not necessarily indicative of future operating results.

obligations under our financing arrangements.

The Company may never realize the full value of its intangible assets or its long-lived assets causing it to record impairments that may negatively affect its financial positioncondition and results of operations.

operating results.

In accordance with applicable accounting standards, the Company is required to test its indefinite-lived intangible assets for impairment on an annual basis, or more frequently if conditions indicate thatwhere there is an impairment may have occurred.indication of impairment. In addition, the Company is required to test certain of its other assets for impairment if conditions indicatewhere there is any indication that an impairmentasset may have occurred.

be impaired.

The Company may be required to recognize impairmentslosses in the future due to, among other factors, extreme fuel price volatility, tight credit markets, agovernment regulatory changes, decline in the fair valuevalues of certain tangible or intangible assets, such as aircraft, route authorities, airport slots and frequent flyer database, unfavorable trends in historical or forecasted results of operations and cash flows and an uncertain economic environment, as well as other uncertainties. For example, in 2019 and 2018, the Company recorded impairment charges of $90 million and $206 million, respectively, associated with its Hong Kong routes, resulting in the full impairment of these assets. The Company can provide no assurance that a material impairment chargeloss of tangible or intangible assets will not occur in a future period. The value of the Company’sCompany's aircraft could be impacted in future periods by changes in supply and demand for these aircraft. Such changes in supply and demand for certain aircraft types could result from the grounding of aircraft by the Company or other carriers.aircraft. An impairment chargeloss could have a material adverse effect on the Company’sCompany's financial positioncondition and results of operations.

operating results.

Any damage to our reputation or brand image could adversely affect our business or financial results.
We operate in a public-facing industry and maintaining a good reputation is critical to our business. The Company’s ability to use its net operating loss carryforwards to offset future taxable income for U.S. federal income tax purposes may be significantly limited due to various circumstances, including certain possible future transactions involving the saleCompany's reputation or issuance of UAL common stock, or if taxable income does not reach sufficient levels.

As of December 31, 2017, UAL reported consolidated federal net operating loss (“NOL”) carryforwards of approximately $2.4 billion.

The Company’s ability to use its NOL carryforwards may be limited if it experiences an “ownership change” as defined in Section 382 (“Section 382”) of the Internal Revenue Code of 1986, as amended (the “Code”). An ownership change generally occurs if certain stockholders increase their aggregate percentage ownership of a corporation’s stock by more than 50 percentage points over their lowest percentage ownership at any time during the testing period, which is generally the three-year period preceding any potential ownership change.

There is no assurance that the Company will not experience a future ownership change under Section 382 that may significantly limit or possibly eliminate its ability to use its NOL carryforwards. Potential future transactions involving the sale or issuance of UAL common stock, including the exercise of conversion options under the terms of any convertible debt that UAL may issue in the future, the repurchase of such debt with UAL common stock, any issuance of UAL common stock for cash, and the acquisition or disposition of such stock by a stockholder owning 5% or more of UAL common stock, or a combination of such transactions, may increase the possibility that the Company will experience a future ownership change under Section 382.

Under Section 382, a future ownership change would subject the Company to additional annual limitations that apply to the amount ofpre-ownership change NOLs that may be used to offset post-ownership change taxable income. This limitation is generally determined by multiplying the value of a corporation’s stock immediately before the ownership change by the applicable long-termtax-exempt rate. Any unused annual limitation may, subject to certain limits, be carried over to later years, and the limitation may, under certain circumstances, be increased bybuilt-in gains in the assets held by such corporation at the time of the ownership change. This limitation could cause the Company’s U.S. federal income taxes to be greater, or to be paid earlier, than they otherwise would be, and could cause all or a portion of the Company’s NOL carryforwards to expire unused. Similar rules and limitations may apply for state income tax purposes. The Company’s ability to use its NOL carryforwards will also depend on the amount of taxable income it generates in future periods. The Company’s NOL carryforwards may expire before it can generate sufficient taxable income to use them in full.

The final impacts of the Tax Cuts and Jobs Actbrand image could be materially different from our current estimates.

On December 22, 2017, the Tax Cuts and Jobs Act was signed into law (the “Tax Act”). The Tax Act introduced significant changesadversely impacted by any failure to the Code. We continue to examine the impact the Tax Act may have on our business. Notwithstanding the reduction in the federal corporate income tax rate as a result of Tax Act, the estimated impact of the new law is based on management’s current knowledge and assumptions and recognized impacts could be materially different from current estimates based upon our further analysis of the new law.

Our significant investments in airlines in other parts of the world and the commercial relationships that we have with those carriers may not produce the returns or results we expect.

An important partmaintain satisfactory practices for all of our strategyoperations and activities, any failure to expandachieve and/or make progress toward our global network includes making significant investments in airlines in other parts of the worldenvironmental and expandingsustainability goals, public pressure from investors or policy groups to change our commercial relationships with these carriers. In 2015, we made a $100 million investment in Azul Linhas Aéreas Brasileiras S.A. (“Azul”) and enhanced our commercial arrangements with Azul. We expect to continue exploring similarnon-controlling investments in, and entering into joint ventures, commercial agreements, loan transactions and strategic alliances with, other carriers as partpolicies, customer perceptions of our global business strategy. These transactions and relationships (including our strategic partnership with, and investment in, Azul) involve significant challenges and risks, including that we may not realize a satisfactory return on our investment, that we may not receive repayment of invested funds, that they may distract management from our operationsadvertising campaigns, sponsorship arrangements or that they may not generate the expected revenue synergies. These events could have a material adverse effect on our operating results or financial condition.

In addition, we are dependent on these other carriers for significant aspectsmarketing programs, customer perceptions of our networkuse of social media, or customer perceptions of statements made by us, our employees and executives, agents or other third parties. Damage to our reputation or brand image or loss of customer confidence in the regions in which they operate. While we work closely with these carriers, we do not have control over their operations orour services could adversely affect our business methods. We may be subjectand financial results, as well as require additional resources to consequences from any improper behavior of joint venture partners, including for failure to comply with anti-corruption laws such as the U.S. Foreign Corrupt Practices Act. Furthermore,rebuild our relationships with these carriers may be subject to the laws and regulations ofnon-U.S. jurisdictions in which these carriers are located or conduct business. Any political or regulatory change in these jurisdictions that negatively impact or prohibit our arrangements with these carriers could have an adverse effect on our results of operations or financial condition. To the extent that the operations of any of these carriers are disrupted over an extended period of time or their actions subject us to the consequences of failure to comply with laws and regulations, our results of operations may be adversely affected.

reputation.
ITEM 1B.UNRESOLVED STAFF COMMENTS.

None.


ITEM 2.PROPERTIES.

Fleet

Including aircraft operated by United’s regional carriers, United’s fleet consisted of 1,262 aircraft as

Fleet.As of December 31, 2017,2019, United's mainline and regional fleets consisted of the details of which are presented in the tables below:

Aircraft Type

 Total  Owned  Leased     Seats in Standard
Configuration
  Average Age (In
Years)
 

Mainline:

      

777-300ER

  14     14     —      366     0.7   

777-200ER

  55     40     15      267-269     17.8   

777-200

  19     19     —      364     20.5   

787-9

  21     21     —      252     2.1   

787-8

  12     12     —      219     4.5   

767-400ER

  16     14     2      242     16.3   

767-300ER

  35     22     13      183-214     22.5   

757-300

  21     9     12      213     15.3   

757-200

  56     50     6      142-169     21.7   

737-900ER

  136     136     —      179     5.0   

737-900

  12     8     4      179     16.3   

737-800

  141     77     64      154-166     13.8   

737-700

  40     20     20      118-126     18.8   

A320-200

  99     66     33      150     19.3   

A319-100

  67     50     17      128     16.7   
 

 

 

  

 

 

  

 

 

     

Total mainline

              744     558     186       14.3   
 

 

 

  

 

 

  

 

 

     

Aircraft Type

 Capacity
Purchase
Agreement
Total
      Owned          Leased      Owned or
Leased by
Regional
Carrier
  Regional Carrier
Operator and

Number of
Aircraft
  Seats in Standard
Configuration
 

Regional:

       

Embraer E175

  152     54     —     98     

SkyWest:

Mesa:

Republic:

 

 

 

  

65  

59  

28  

 

 

 

  76   

Embraer 170

  38     —     —     38     Republic:   38     70   

CRJ700

  65     —     —     65     

SkyWest:

GoJet:

Mesa:

 

 

 

  

20  

25  

20  

 

 

 

  70   

CRJ200

  85     —     —     85     

SkyWest:

Air Wisconsin:

 

 

  

55  

30  

 

 

  50   

Embraer ERJ 145 (XR/LR/ER)

  168     29     139     —     

ExpressJet:

Trans States:

CommutAir:

 

 

 

  

  110  

36  

22  

 

 

 

  50   

Q200 (a)

  7     —     —     7     CommutAir:   7     37   

Embraer ERJ 135 (a)

  3     —     3     —     ExpressJet:   3     37   
 

 

 

  

 

 

  

 

 

  

 

 

    

Total regional

  518     83     142     293      
 

 

 

  

 

 

  

 

 

  

 

 

    

Total

  1,262     641     328     293      

 

 

 

 

  

 

 

  

 

 

  

 

 

    

(a) United exited service of both the Q200 and ERJ 135 aircraft types in January 2018.

following:

Aircraft Type Total Owned Leased Seats in Standard Configuration  Average Age (In Years)
Mainline:           
777-300ER 20
 20
 
 350  2.2
777-200ER 55
 51
 4
 267-276  19.8
777-200 19
 19
 
 364  22.5
787-10 11
 11
 
 318  0.7
787-9 25
 25
 
 252  3.8
787-8 12
 12
 
 219  6.5
767-400ER 16
 14
 2
 240  18.3
767-300ER 38
 25
 13
 167-214  23.9
757-300 21
 9
 12
 234  17.3
757-200 53
 48
 5
 142-176  23.5
737-900ER 136
 136
 
 179  7.0
737-900 12
 8
 4
 179  18.3
737-800 141
 95
 46
 166  15.8
737-700 41
 29
 12
 126  20.8
A320-200 97
 76
 21
 150  21.3
A319-100 80
 57
 23
 126-128  18.1
Total mainline 777
 635
 142
    15.6

In addition to the aircraft presented in the tablestable above, United ownsowned or leasesleased the following mainline aircraft listed below as of December 31, 2017:

2019:
Fourteen Boeing 737 MAX 9s, which are temporarily grounded pursuant to the FAA Order;
Four Boeing 747-400s, which are permanently grounded;
Three Airbus A320s, which are temporarily grounded; and
One owned Boeing767-200, which is being subleased to another airline;airline.
12
Aircraft Type Total Owned Owned or Leased by Regional Carrier Regional Carrier Operator and Number of Aircraft Seats in Standard Configuration
Regional:  
  
       
Embraer E175/E175LL 170
 71
 99
 
SkyWest:
Mesa:
Republic:
ExpressJet:
65
60
28
17

 70-76
Embraer 170 38
 
 38
 Republic:38
 70
CRJ700 47
 
 47
 
Mesa:
SkyWest:
GoJet:
20
19
8

 70
CRJ550 18
 
 18
 GoJet:18
 50
CRJ200 133
 
 133
 
SkyWest:
Air Wisconsin:
70
63

 50
Embraer ERJ 145 (XR/LR/ER) 175
 168
 7
 
ExpressJet:
Trans States:
CommutAir:
95
43
37

 50
Total regional 581
 239
 342
     
In addition to the aircraft presented in the table above, United owned and three leased Boeing 747s,the following regional aircraft as of December 31, 2019:
Eight Embraer E175LLs, which are permanently grounded;were delivered but not yet in service; and
11 ownedThree Embraer ERJ 145s,ERJ145s, which are temporarily grounded.



Firm Order and Option Aircraft

Aircraft. As of December 31, 2017,2019, United had firm commitments and options to purchase new aircraft from Boeing, Airbus and AirbusEmbraer as presented in the table below:

Aircraft Type

Number of Firm
Commitments (a)

 Airbus A350

45  

 Boeing 737 MAX

161  

 Boeing777-300ER

4  

 Boeing 787

18  

 (a) United also has options and purchase rights for additional aircraft.

    Scheduled Aircraft Deliveries
Aircraft Type Number of Firm
Commitments (a)
 2020 After 2020
Airbus A321XLR 50
 
 50
Airbus A350 45
 
 45
Boeing 737 MAX 171
 44
 127
Boeing 777-300ER 2
 2
 
Boeing 787 16
 15
 1
Embraer E175 20
 20
 
(a) United also has options and purchase rights for additional aircraft.
The aircraft listed in the table above are scheduled for delivery from 2018 through 2027. In 2018, United2030. The Company expects to takeassign the purchase obligation for each of the 20 Embraer E175 aircraft to one of its regional partners at the time of such aircraft's delivery, of 10 Boeing 737 MAX aircraft, seven Boeing 787 aircraft and four Boeing777-300ER aircraft.subject to certain conditions. To the extent the Company and the aircraft manufacturers with whomwhich the Company has existing orders for new aircraft agree to modify the contracts governing those orders, the amount and timing of the Company’sCompany's future capital commitments could change. Additionally, the CompanyUnited also has entered into a contractagreements to purchase three20 used Boeing767-300ERAirbus A319 aircraft from Hawaiian Airlines, Inc. with expected delivery dates through 2022 and 19 used Boeing 737-700 aircraft with expected delivery dates through 2021.
The 44 Boeing 737 MAX aircraft in the second halftable above include 16 Boeing B737 MAX aircraft of 2018. which the Company planned to take delivery in 2019, and 28 aircraft of which the Company planned to take delivery of in 2020; however, following the FAA Order, Boeing suspended deliveries of new Boeing 737 MAX aircraft. The extent of the delay to the scheduled deliveries of new 737 MAX aircraft is expected to be impacted by the length of time the FAA Order remains in place, Boeing's production rate and the pace at which Boeing can deliver aircraft following the lifting of the FAA Order, among other factors. As a result, the Company is unable to estimate the number of Boeing 737 MAX aircraft of which it will take delivery in 2020.
See Notes 10 and 13 to the financial statements included in Part II, Item 8 of this report for additional information.

Facilities

United’s principal facilities relate to

Facilities.United leases of airport facilities, gates, hangar sites, terminal buildings and other airport facilities in the municipalities it serves. United has major terminal facility leases at SFO, Washington Dulles, Chicago O’Hare,O'Hare, LAX, Denver, Newark, Houston Bush Cleveland Hopkins International Airport and Guam with expiration dates ranging from 20182020 through 2054.2053. Substantially all of these facilities are leased on anet-rental basis, resulting in the Company’sCompany's responsibility for maintenance, insurance and other facility-related expenses and services.

United also maintains administrative, offices, catering, cargo, training, facilities, maintenance facilities and other facilities to support its operations in the cities served.it serves. In addition, United also has multiple leases, which expire from 20182020 through 2029,2033, for its principal executive office and operations center in downtown Chicago and administrative offices in downtown Houston.

ITEM 3.LEGAL PROCEEDINGS.

On June 30, 2015, UAL received a Civil Investigative Demand (“CID”("CID") from the Antitrust Division of the DOJ seeking documents and information from the Company in connection with a DOJ investigation related to statements and decisions about airline capacity. The Company is working with the DOJ and has completed its response to the CID. The Company is not able to predict what action, if any, might be taken in the future by the DOJ or other governmental authorities as a result of the investigation. Beginning on July 1, 2015, subsequent to the announcement of the CID, UAL and United were named as defendants in multiple class action lawsuits that asserted claims under the Sherman Antitrust Act, which have been consolidated in the United States District Court for the District of Columbia. The complaints generally allege collusion among U.S. airlines on capacity impacting airfares and seek treble damages. The Company intends to vigorously defend against the class action lawsuits.

On October 13, 2015, United received a CID from the Civil Division of the DOJ. The CID requested documents and oral testimony from United in connection with an industry-wide DOJ investigation related to delivery scan and other data purportedly required for payment for the carriage of mail under United’sUnited's International Commercial Air Contracts with the U.S. Postal Service. The Company has been responding to the DOJ’sDOJ's request and cooperating in the investigation since that time. On November 8, 2016, the DOJ Criminal Division met with representatives from the Company and advised they are conducting an industry-wide investigation into the same matter. The Company is also cooperatingcontinues to cooperate with the government in this aspect of their investigation and on December 21, 2016, representatives from the Company have met with both the Civil and Criminal Divisions to provide additional information. The Company cannot predict what action, if any, might be taken in the future by the DOJ or other governmental authorities as a result of these investigations.


Other Legal Proceedings

Proceedings. The Company is involved in various other claims and legal actions involving passengers, customers, suppliers, employees and government agencies arising in the ordinary course of business. Additionally, from time to time, the Company becomes aware of potentialnon-compliance with applicable environmental regulations, which have either been identified by the Company (through internal compliance programs such as its environmental compliance audits) or through notice from a governmental entity. In some instances, these matters could potentially become the subject of an administrative or judicial proceeding and could potentially involve monetary sanctions. After considering a number of factors, including (but not limited to) the views of legal counsel, the nature of contingencies to which the Company is subject and prior experience, management believes that the ultimate disposition of these other claims and legal actions will not materially affect its consolidated financial position or results of operations. However, the ultimate resolutions of these matters are inherently unpredictable. As such, the Company’sCompany's financial condition and results of operations could be adversely affected in any particular period by the unfavorable resolution of one or more of these matters.

ITEM 4.MINE SAFETY DISCLOSURES.

Not applicable.

PART II

ITEM 5.MARKET FOR REGISTRANT’SREGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.

UAL’s

UAL's common stock is listed on the New York Stock Exchange (“NYSE”Nasdaq Global Select Market ("Nasdaq") under the symbol “UAL.” The following table sets forth the ranges of high and low sales prices per share of UAL common stock during the last two fiscal years, as reported by the NYSE:

   UAL 
   2017   2016 
   High   Low   High   Low 

1st quarter

    $    76.75         $    64.16         $    61.41         $    42.17     

2nd quarter

   83.04        67.55        58.90        37.41     

3rd quarter

   81.39        57.34        54.53        37.64     

4th quarter

   69.62        56.51        76.80        51.34     

"UAL." As of February 14, 2018,18, 2020, there were 7,5345,073 holders of record of UAL common stock.

UAL did not pay any dividends in 2017 or 2016. Under debt agreements and certain indentures, UAL’s ability to pay dividends on or repurchase UAL’s common stock is subject to limits on the amount of such payments and to certain conditions, including that no default or event of default exists under those instruments and that after giving effect to the making of any such payments, UAL would be in compliance with a minimum fixed charge coverage ratio. Any future determination regarding dividend or distribution payments will be at the discretion of the UAL Board of Directors, subject to the foregoing limits and applicable limitations under Delaware law.

United paid dividends of $1.8 billion and $2.6 billion to UAL in 2017 and 2016, respectively.

The following graph shows the cumulative total stockholder return for UAL’sUAL's common stock during the period from December 31, 20122014 to December 31, 2017.2019. The graph also shows the cumulative returns of the Standard and Poor’sPoor's 500 Index (“SPX”("SPX") and the NYSE Arca Airline Index (“XAL”("XAL") of 1514 investor-owned airlines over the same five-year period. The comparison assumes $100 was invested on December 31, 20122014 in each of UAL common stock, the SPX and the XAL.

a2019performancev2.jpg

Note: The stock price performance shown in the graph above should not be considered indicative of potential future stock price performance. The foregoing performance graph is being furnished as part of this report solely in accordance with the requirement under Rule14a-3(b)(9) to furnish our stockholders with such information, and therefore, shall not be deemed to be filed or incorporated by reference into any filings by the Company under the Securities Act or the Exchange Act.



The following table presents repurchases of UAL common stock made in the fourth quarter of 2017:

Period

  

 

 Total number of
shares
purchased (a)(b)
  Average price
paid per share (b)(c)
  Total number of
shares purchased
as part of publicly
announced plans
or programs (a)
  Approximate dollar value
of shares that may yet be
purchased under the
plans or programs (in
millions) (a)
 
October 2017    2,852,917    $59.59     2,852,917    $383   
November 2017    5,342,435     58.93     5,342,435     68   
December 2017    1,084,498     63.06     1,084,498     3,000   
   

 

 

   

 

 

  

Total

    9,279,850      9,279,850    

 

   

 

 

   

 

 

  

2019:

Period Total number of shares purchased (a) (b) Average price paid per share (b)(c) Total number of shares purchased as part of publicly announced plans or programs (a) Approximate dollar value of shares that may yet be purchased under the plans or programs (in millions) (a)
October 2019 1,071,915
 $87.65
 1,071,915
 $3,231
November 2019 430,400
 92.70
 430,400
 3,191
December 2019 922,600
 88.72
 922,600
 3,109
Total 2,424,915
   2,424,915
  
(a) In 2017,2019, UAL repurchased approximately 2819.2 million shares of UAL common stock for $1.8 billion, completing its July 2016 repurchase authorization.$1.6 billion. In December 2017, UAL’sUAL's Board of Directors authorized a $3.0 billion share repurchase program to acquire UAL's common stock. In July 2019, UAL's Board of Directors authorized a new $3.0 billion share repurchase program to acquire UAL’sUAL's common stock.stock, in addition to any amounts remaining under the prior program. As of December 31, 2017,2019, the Company had approximately $3.0$3.1 billion remaining to purchase shares under its share repurchase program.programs. UAL may repurchase shares through the open market, privately negotiated transactions, block trades or accelerated share repurchase transactions from time to time in accordance with applicable securities laws.

(b) The table does not include shares withheld from employees to satisfy certain tax obligations due upon the vesting of restricted stock units.stock. The United Continental Holdings, Inc. 2017 Incentive Compensation Plan and the United Continental Holdings, Inc. 2008 Incentive Compensation Plan, each provide for the withholding of shares to satisfy tax obligations due upon the vesting of restricted stock units.stock. However, thethese plans do not specify a maximum number of shares that may be withheld for this purpose. A total of 1,4461,930 shares were withheld under the plans in the fourth quarter of 20172019 at an average price of $64.46$89.67 per share. These shares of common stock withheld to satisfy tax withholding obligations may be deemed to be “issuer purchases”"issuer purchases" of shares that are required to be disclosed pursuant to this Item.

(c) Average price paid per share is calculated on a settlement basis and excludes commission.

ITEM 6.SELECTED FINANCIAL DATA.

UAL’s

UAL's consolidated financial statements and statistical data are provided in the tables below:

   Year Ended December 31, 
   2017   2016   2015   2014   2013 

Income Statement Data (in millions, except per share amounts):

          

Operating revenue

   $        37,736     $        36,556     $        37,864     $        38,901     $        38,279  

Operating expense

   34,238     32,218     32,698     36,528     37,030  

Operating income

   3,498     4,338     5,166     2,373     1,249  

Net income

   2,131     2,263     7,340     1,132     571  

Basic earnings per share

   7.04     6.86     19.52     3.05     1.64  

Diluted earnings per share

   7.02     6.85     19.47     2.93     1.53  

Balance Sheet Data at December 31 (in millions):

          

Unrestricted cash, cash equivalents and short-term investments

   $3,798     $4,428     $5,196     $4,384     $5,121  
Total assets   42,326     40,140     40,861     36,595     36,021  

Debt and capital lease obligations

   14,392     11,705     11,759     11,947     12,293  

  Year Ended December 31, 
 

 

 

 
Mainline 2017  2016  2015  2014  2013 

Passengers (thousands) (a)

  108,017      101,007      96,327      91,475      91,329    

Revenue passenger miles (“RPMs”) (millions) (b)

  193,444      186,181      183,642      179,015      178,578    

Available seat miles (“ASMs”) (millions) (c)

  234,576      224,692      219,989      214,105      213,007    

Cargo ton miles (millions)

  3,316      2,805      2,614      2,487      2,213    

Passenger load factor (d)

  82.5%   82.9%   83.5%   83.6%   83.8% 

Passenger revenue per available seat mile (“PRASM”) (cents)

  11.32      11.31      11.97      12.51      12.20    

Total revenue per available seat mile (cents)

  13.51      13.50      14.19      14.81      14.51    

Average yield per revenue passenger mile (“Yield”) (cents) (e)

  13.73      13.65      14.34      14.96      14.56    

Cost per available seat mile (“CASM”) (cents)

  12.59      12.22      12.42      14.03      14.31    

Average price per gallon of fuel, including fuel taxes

 $        1.72     $        1.49     $        1.96     $        2.98     $        3.12    

Fuel gallons consumed (millions)

  3,357      3,261      3,216      3,183      3,204    

Average stage length (miles) (f)

  1,806      1,859      1,922      1,958      1,934    

Average daily utilization of each aircraft (hours) (g)

  10:27      10:06      10:24      10:26      10:28    

Consolidated

     

Passengers (thousands) (a)

  148,067      143,177      140,369      138,029      139,209    

RPMs (millions) (b)

  216,261      210,309      208,611      205,559      205,167    

ASMs (millions) (c)

  262,386      253,590      250,003      246,021      245,354    

Passenger load factor (d)

  82.4%   82.9%   83.4%   83.6%   83.6% 

PRASM (cents)

  12.35      12.40      13.11      13.72      13.50    

Total revenue per available seat mile (cents)

  14.38      14.42      15.15      15.81      15.60    

Yield (cents) (e)

  14.98      14.96      15.72      16.42      16.14    

CASM (cents)

  13.05      12.70      13.08      14.85      15.09    

Average price per gallon of fuel, including fuel taxes

 $1.74     $1.49     $1.94     $2.99     $3.13    

Fuel gallons consumed (millions)

  3,978      3,904      3,886      3,905      3,947    

Average stage length (miles) (f)

  1,460      1,473      1,487      1,480      1,445    

  Year Ended December 31,
  2019 
2018 (a)
 
2017 (a)
 2016 2015
Income Statement Data (in millions, except per share amounts):          
Operating revenue $43,259
 $41,303
 $37,784
 $36,558
 $37,864
Operating expense 38,958
 38,074
 34,166
 32,214
 32,698
Operating income 4,301
 3,229
 3,618
 4,344
 5,166
Net income 3,009
 2,122
 2,143
 2,234
 7,340
Basic earnings per share 11.63
 7.70
 7.08
 6.77
 19.52
Diluted earnings per share 11.58
 7.67
 7.06
 6.76
 19.47
           
Balance Sheet Data at December 31 (in millions):          
Unrestricted cash, cash equivalents and short-term investments $4,944
 $3,950
 $3,798
 $4,428
 $5,196
Total assets 52,611
 49,024
 47,469
 40,208
 40,861
Debt and finance lease obligations (b)
 14,818
 13,792
 13,576
 11,705
 11,759
(a) Amounts adjusted due to the adoption of Accounting Standard Update No. 2016-02, Leases(Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.
(b) Finance leases, under Topic 842, are the equivalent of capital leases under Financial Accounting Standards Board Accounting Standards Codification Topic 840, Leases.


  Year Ended December 31,
  2019 2018 2017 2016 2015
Select operating statistics (a)          
Passengers (thousands) (b)
 162,443
 158,330
 148,067
 143,177
 140,369
Revenue passenger miles ("RPMs") (millions) (c)
 239,360
 230,155
 216,261
 210,309
 208,611
Available seat miles ("ASMs") (millions) (d)
 284,999
 275,262
 262,386
 253,590
 250,003
Cargo revenue ton miles (millions) (e)
 3,329
 3,425
 3,316
 2,805
 2,614
Passenger load factor (f)
 84.0% 83.6% 82.4% 82.9% 83.4%
Passenger revenue per available seat mile ("PRASM") (cents) 13.90
 13.70
 13.13
 13.18
 13.11
Total revenue per available seat mile ("TRASM") (cents) 15.18
 15.00
 14.40
 14.42
 15.15
Average yield per revenue passenger mile ("Yield") (cents) (g)
 16.55
 16.38
 15.93
 15.90
 15.72
Cost per available seat mile ("CASM") (cents) 13.67
 13.83
 13.02
 12.70
 13.08
Average price per gallon of fuel, including fuel taxes $2.09
 $2.25
 $1.74
 $1.49
 $1.94
Fuel gallons consumed (millions) 4,292
 4,137
 3,978
 3,904
 3,886
Average stage length (miles) (h)
 1,460
 1,446
 1,460
 1,473
 1,487
Average daily utilization of each mainline aircraft (hours:minutes) (i)
 10:39
 10:45
 10:27
 10:06
 10:24
(a) Includes data from our regional carriers operating under CPAs unless otherwise noted.
(b) The number of revenue passengers measured by each flight segment flown.

(b)

(c) The number of scheduled miles flown by revenue passengers.

(c)

(d) The number of seats available for passengers multiplied by the number of scheduled miles those seats are flown.

(d)

(e) The number of cargo revenue tons transported multiplied by the number of miles flown.
(f) RPM divided by ASM.

(e)

(g) The average passenger revenue received for each revenue passenger mile flown.

(f)

(h) Average stage length equals the average distance a flight travels weighted for size of aircraft.

(g)

(i) The average number of hours per day that an aircraft flown in revenue service is operated (from gate departure to gate arrival).


ITEM 7.MANAGEMENT’SMANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

Overview

United ContinentalAirlines Holdings, Inc. (together with its consolidated subsidiaries, “UAL”"UAL" or the “Company”"Company") is a holding company and its principal, wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, “United”"United"). As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United’sUnited's operating revenues and operating expenses comprise nearly 100% of UAL’sUAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL’sUAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words “we,” “our,” “us,”"we," "our," "us," and the “Company”"Company" in this report for disclosures that relate to all of UAL and United.

2017 Financial

2019 Highlights

20172019 net income was $3.0 billion, or $11.58 diluted earnings per share, as compared to $2.1 billion, or $7.02$7.67 diluted earnings per share.share, in 2018.

United’s consolidatedRevenue for 2019 increased $1.9 billion over 2018 due to a 3.5% growth in ASMs and a PRASM decreased 0.4%increase of 1.5% in 20172019 compared to 2016.2018.

Aircraft fuel cost increased 18.9% year-over-year due mainly to higher fuel prices.

In 2017,2019, UAL repurchased approximately 2819.2 million shares of UALits common stock for $1.8 billion, completing the $2.0 billion share repurchase program authorized by UAL’s Board of Directors in July 2016. In December 2017, UAL’s Board of Directors authorized a new $3.0 billion share repurchase program to acquire UAL’s common stock.$1.6 billion. As of December 31, 2017,2019, the Company had approximately $3.0$3.1 billion remaining to purchase shares under its share repurchase program.programs.

UAL ended the year2019 with $5.8$6.9 billion in unrestricted liquidity, which consisted of unrestricted cash, cash equivalents, short-term investments and available capacity under the revolving credit facility.facility of its Amended and Restated Credit and Guaranty Agreement (as amended, the "Credit Agreement").

2017 Operational Highlights

Consolidated RPMs for 20172019 increased 2.8%4.0% as compared to 2016,2018, and consolidated ASMs increased 3.5% from the prior year, resulting in a consolidated load factor of 82.4%84.0% in 20172019 versus 82.9%83.6% in 2016.2018.

For 20172019 and 2016,2018, the Company recorded a DOTU.S. Department of Transportation on-time arrival raterates of 81.9%77.9% and 81.3%79.8%, respectively, and a systemmainline completion factorfactors of 99.0% for each year.99.2%.

During 2017, the Company took delivery
Results of three new Boeing787-9s, four new Boeing737-800s, 12 new Boeing777-300ERs, 24 new Embraer E175s, two used Airbus A320s and six used Airbus A319s and retired 20 Boeing747-400s.Operations

Outlook

Set forth below is a

The following discussion provides an analysis of the principal matters that we believe could impact our financial and operating performance and cause our results of operations in future periods to differ materially from our historical operating results and/or from our anticipated results of operations described in the forward-looking statements in this report. See Part I, Item 1A., Risk Factors, of this report and the factors described under “Forward-Looking Information” belowreasons for additional discussion of these and other factors that could affect us.

In 2017, the Company had its best operational performance in its post-merger history. Operational reliability, service and experience underpin the Company’s long-term strategy. Our prioritiesmaterial changes therein for 2018 are continuedtop-tier operational reliability while strengthening our domestic network through growth, driving efficiency and productivity and continued investment in our employees, product and technology.

Economic Conditions. The aviation industry in 2018 is expected to show continued growth in the demand for air travel. Passenger numbers are expected to increase. Cargo volumes are also expected to grow, with some recovery in yields. Passenger revenue in all regions are expected to demonstrate improved performance in 2018.

Capacity. In 2018, the Company expects its consolidated ASMs to grow between 4% and 6% year-over-year. Most of this growth will be concentrated in our domestic network, especially in ourmid-continent hubs. We believe greater scale and connectivity at our hubs reinforces our relevance and value proposition to our customers. Rebanking at our hubs is expected to drive significant additional connection opportunities. We will also expand flights innon-peak times of the year to more efficiently use our aircraft and facilities with the objective of driving an increase in profitability.

Fuel.The Company’s average aircraft fuel price per gallon including related taxes was $1.74 in 20172019 as compared to $1.492018. See "Results of Operations" in 2016. The pricePart II, Item 7. Management's Discussion and Analysis of jet fuel has increased since January 2016Financial Condition and remains volatile. Based on projected fuel consumption in 2018, a one dollar changeResults of Operations in the priceCompany's 2018 Annual Report on Form 10-K, filed with the SEC on February 28, 2019 (the "2018 Annual Report"), for analysis of a barrel of crude oil would change the Company’s annual fuel expense by approximately $96 million.

Results of Operations

In this section, we compare2018 results of operations for the year ended December 31, 2017 with results of operations for the year ended December 31, 2016, and results of operations for the year ended December 31, 2016 with results of operations for the year ended December 31, 2015.

2017as compared to 2016

2017.

Operating Revenue

Revenue. The table below illustrates the year-over-year percentage change in the Company’sCompany's operating revenues for the years ended December 31 (in millions, except percentage changes):

   2017   2016   Increase
(Decrease)
   % Change 

Passenger—Mainline

   $26,552     $25,414     $1,138     4.5  

Passenger—Regional

   5,852     6,043     (191)    (3.2) 
  

 

 

   

 

 

   

 

 

   

Total passenger revenue

   32,404     31,457     947     3.0  

Cargo

   1,035     876     159     18.2  

Other operating revenue

   4,297     4,223     74     1.8  
  

 

 

   

 

 

   

 

 

   

Total operating revenue

   $37,736     $36,556     $1,180     3.2  
  

 

 

   

 

 

   

 

 

   

 2019 2018 Increase (Decrease) % Change
Passenger revenue$39,625
 $37,706
 $1,919
 5.1
Cargo1,179
 1,237
 (58) (4.7)
Other operating revenue2,455
 2,360
 95
 4.0
Total operating revenue$43,259
 $41,303
 $1,956
 4.7


The table below presents selected passenger revenue and operating data of the Company, broken out by geographic region, expressed as year-over-year changes:

  Increase (decrease) from 2016 (a): 
    Domestic        Atlantic        Pacific         Latin      Total
  Consolidated  
    Mainline        Regional     

Passenger revenue (in millions)

  $809       $103      $(128)      $163      $947       $1,138       $(191)    

Passenger revenue

  4.2 %   1.9%   (3.1)%   5.8%   3.0 %   4.5 %   (3.2)% 
Average fare per passenger  0.1 %   1.4%   — %   4.1%   (0.4)%   (2.3)%   2.0 % 

Yield

  (0.4)%   0.9%   (2.2)%   4.1%   0.1 %   0.6 %   2.4 % 

PRASM

  (0.6)%   1.5%   (5.8)%   3.3%   (0.4)%   0.1 %   0.6 % 

Passengers

  4.2 %   0.5%   (3.1)%   1.7%   3.4 %   6.9 %   (5.0)% 

RPMs (traffic)

  4.7 %   0.9%   (0.9)%   1.6%   2.8 %   3.9 %   (5.4)% 

ASMs (capacity)

  4.9 %   0.4%   2.9 %   2.4%   3.5 %   4.4 %   (3.8)% 

Passenger load factor (points)

  (0.2)      0.4      (3.0)      (0.7)     (0.5)      (0.4)      (1.5)    

(a) See Part II, Item 6, Selected Financial Data, of this report for the definition of these statistics.

Consolidated passenger

  Increase (decrease) from 2018 (a):
  Domestic Atlantic Pacific 
Latin 
 Total
Average fare per passenger 3.4% (1.9)% (4.0)% 5.9% 2.4%
Passengers 2.1% 6.5 % 4.0 % 3.9% 2.6%
RPMs (traffic) 3.5% 6.9 % 2.4 % 4.0% 4.0%
ASMs (capacity) 3.8% 5.8 % 0.5 % 2.9% 3.5%
Passenger load factor (points) (0.2) 0.8
 1.5
 0.9
 0.4
(a) See Part II, Item 6. Selected Financial Data, of this report for the definition of these statistics.      
Passenger revenue increased $0.9$1.9 billion, or 3.0%5.1%, in 20172019 as compared to 20162018, primarily due to a 2.8%4.0% increase in traffic. Consolidated PRASMtraffic, continuing strong domestic demand, improvements in average fares in the Latin and Domestic markets, and increases in ancillary fees driven by improved product offerings.
Cargo revenue decreased 0.4%$58 million, or 4.7%, in 20172019 as compared to 2016. The2018, primarily due to an approximately 3% decrease in cargo ton miles and a 2% decline in PRASMcargo ton mile yield.
In December 2019, a novel strain of coronavirus ("COVID-19") was driven by factors including more aggressivelow-cost carrier pricingreported in our hub markets, temporary share loss duringroll-outWuhan, China. The World Health Organization has declared COVID-19 to constitute a "Public Health Emergency of our Basic Economy pricing,International Concern." On January 30, 2020, the U.S. Department of State issued a Level 4 "do not travel" advisory for China. The U.S. government has also implemented enhanced screenings, quarantine requirements and softertravel restrictions in connection with the COVID-19 outbreak.  The Company has suspended its flights between the United States and each of Beijing, Chengdu, Shanghai and Hong Kong through April 24, 2020. These routes represented approximately 5% of the Company's 2020 planned capacity and the Company's other trans-Pacific routes represented an additional 10% of the Company's 2020 planned capacity. As of the date of this report, the Company is experiencing an approximately 100% decline in near-term demand into China and Guam. Our revenuean approximately 75% decline in 2017 was negatively impacted by severe storms duringnear-term demand on the third quarter.

Cargo revenue increased $159 million, rest of the Company's trans-Pacific routes. The extent of the impact of the COVID-19 on the Company's operational and financial performance will depend on future developments, including the duration and spread of the outbreak and related travel advisories and restrictions and the impact of the COVID-19 on overall demand for air travel, all of which are highly uncertain and cannot be predicted. If traffic on the Company's trans-Pacific routes were to remain at these levels for an extended period, and/or 18.2%,routes in 2017 as comparedother parts of the Company's network begin to 2016 due to higher year-over-year international freight volume and yield.

see significant declines in demand, our results of operations for full year 2020 may be materially adversely affected.

Operating Expense

Expense. The table below includes data related to the Company’sCompany's operating expense for the years ended December 31 (in millions, except percentage changes):

   2017   2016   Increase
(Decrease)
   % Change 

Salaries and related costs

  $11,045    $10,275    $770     7.5  

Aircraft fuel

   6,913     5,813     1,100     18.9  

Landing fees and other rent

   2,240     2,165     75     3.5  

Regional capacity purchase

   2,232     2,197     35     1.6  

Depreciation and amortization

   2,149     1,977     172     8.7  

Aircraft maintenance materials and outside repairs

   1,856     1,749     107     6.1  

Distribution expenses

   1,349     1,303     46     3.5  

Aircraft rent

   621     680     (59)    (8.7) 

Special charges

   176     638     (462)    NM  

Other operating expenses

   5,657     5,421     236     4.4  
  

 

 

   

 

 

   

 

 

   

Total operating expenses

   $34,238     $32,218     $2,020     6.3  
  

 

 

   

 

 

   

 

 

   

 2019 2018 Increase (Decrease) % Change
Salaries and related costs$12,071
 $11,458
 $613
 5.3
Aircraft fuel8,953
 9,307
 (354) (3.8)
Regional capacity purchase2,849
 2,649
 200
 7.6
Landing fees and other rent2,543
 2,449
 94
 3.8
Depreciation and amortization2,288
 2,165
 123
 5.7
Aircraft maintenance materials and outside repairs1,794
 1,767
 27
 1.5
Distribution expenses1,651
 1,558
 93
 6.0
Aircraft rent288
 433
 (145) (33.5)
Special charges246
 487
 (241) NM
Other operating expenses6,275
 5,801
 474
 8.2
Total operating expenses$38,958
 $38,074
 $884
 2.3
Salaries and related costs increased $770$613 million, or 7.5%5.3%, in 20172019 as compared to 20162018, primarily due to higher contractual pay rates, andhigher benefit expenses, driven by collective bargaining agreements finalized in 2016,higher employee incentives and a 2.5%4.0% increase

in average full-time equivalent employees,employees. Employee incentives included $157 million increase in profit sharing in 2019 as compared to 2018.

Aircraft fuel expense decreased $354 million, or 3.8%, in 2019 as compared to 2018, primarily due to a 7.1% decrease in fuel prices, partially offset by a decrease in profit sharing and other employee incentives.

Aircraft fuel expense increased $1.1 billion, or 18.9%, primarily due to increased fuel prices and a 3.5% increase in capacity. The table below presents the significant changes in aircraft fuel cost per


gallon for the years ended December 31 (in millions, except percentage changes):

  (In millions)  %
Change
  Average price per gallon 
  2017  2016   2017  2016  %
Change
 
Total aircraft fuel purchase cost excluding fuel hedge impacts  $  6,911    $  5,596    23.5    $  1.74    $  1.43    21.7  
Hedge losses reported in fuel expense     217    NM    —    0.06    NM  
 

 

 

  

 

 

   

 

 

  

 

 

  

Fuel expense

  6,913    5,813    18.9    1.74    1.49    16.8  
Total fuel consumption (gallons)  3,978    3,904    1.9     

Landing feeschanges and other rent increased $75 million, or 3.5%, in 2017 as compared to theyear-ago period due to higher rental and landing fee rates.

per gallon data):

  2019 2018 
%
Change
Fuel expense $8,953
 $9,307
 (3.8)
Total fuel consumption (gallons) 4,292
 4,137
 3.7
Average price per gallon $2.09
 $2.25
 (7.1)
Regional capacity purchase costs increased $35$200 million, or 1.6%7.6%, in 20172019 as compared to theyear-ago period despite regional capacity being down 3.8% in 2017 as compared to 20162018, primarily due to increasesa rate increase under various capacity purchase agreements with regional carriers and a 4.1% increase in annual rates, maintenance cycle-related costs and lease return costs.

regional flying.

Depreciation and amortization increased $172$123 million, or 8.7%5.7%, in 20172019 as compared to 20162018, primarily due to the additions of new and used aircraft aircraft improvements and increases in information technologynew capital projects related both to infrastructure and application development projects.

information technology.

Aircraft maintenance materials and outside repairs increased $107rent decreased $145 million, or 6.1%33.5%, in 20172019 as compared to 2016 primarily due to an increase in airframe and engine maintenance visits and additional repairs to wireless and inflight entertainment equipment.

Aircraft rent decreased $59 million, or 8.7%, in 2017 as compared to 20162018, primarily due to the purchase of leased aircraft and lower lease renewal rates.

the conversion of certain operating leases to finance leases.

The table below presents special charges incurred by the Company during the years ended December 31 (in millions):

   2017   2016 

Severance and benefit costs

   $116     $37  

Impairment of assets

   25     412  

Cleveland airport lease restructuring

   —     74  

Labor agreement costs

   —     64  

(Gains) losses on sale of assets and other special charges

   35     51  
  

 

 

   

 

 

 

Total special charges

   $176     $638  
  

 

 

   

 

 

 

 2019 2018
Impairment of assets$171
 $377
Severance and benefit costs16
 41
Termination of an engine maintenance service agreement
 64
(Gains) losses on sale of assets and other special charges59
 5
Total special charges$246
 $487
See Note 14 to the financial statements included in Part II, Item 8 of this report for additional information.

Other operating expenses increased $236$474 million, or 4.4%8.2%, in 20172019 as compared to 20162018, primarily due to increased purchased services related to airport operations weather-related costs, in food, marketingtechnology initiatives, catering costs, facility projects and technology associated with the Company’s enhanced customer experience initiatives, and due to volume-driven increases in cargo trucking and handling costs.

crew-related expenses.

Nonoperating Income (Expense)

. The following table illustrates the year-over-year dollar and percentage changes in the Company’sCompany's nonoperating income (expense) for the years ended December 31 (in millions, except percentage changes):

   2017   2016   Increase
(Decrease)
   % Change 

Interest expense

   $(643)    $(614)    $29     4.7  

Interest capitalized

   84     72     12     16.7  

Interest income

   57     42     15     35.7  

Miscellaneous, net

       (19)    (22)    NM  
  

 

 

   

 

 

     

Total nonoperating expense, net

   $(499)    $(519)    $(20)    (3.9) 
  

 

 

   

 

 

     

2016 compared to 2015

Operating Revenue

The table below illustrates the year-over-year percentage change in the Company’s operating revenues for the years ended December 31 (in millions, except percentage changes):

   2016   2015   Increase
(Decrease)
   % Change 

Passenger—Mainline

   $25,414     $26,333     $(919)    (3.5) 

Passenger—Regional

   6,043     6,452     (409)    (6.3) 
  

 

 

   

 

 

   

 

 

   

Total passenger revenue

   31,457     32,785     (1,328)    (4.1) 

Cargo

   876     937     (61)    (6.5) 

Other operating revenue

   4,223     4,142     81     2.0  
  

 

 

   

 

 

   

 

 

   

Total operating revenue

   $36,556     $37,864     $(1,308)    (3.5) 
  

 

 

   

 

 

   

 

 

   

The table below presents selected passenger revenue and operating data of the Company, broken out by geographic region, expressed as year-over-year changes:

  Increase (decrease) in 2016 from 2015 (a): 
      Domestic        Atlantic        Pacific        Latin      Total
  Consolidated  
    Mainline    Regional   

Passenger revenue (in millions)

  $(523)      $(512)      $(215)      $(78)      $ (1,328)      $(919)      $(409)    

Passenger revenue

  (2.7)%   (8.6)%   (4.9)%   (2.7)%   (4.1)%   (3.5)%   (6.3)% 

Average fare per passenger

  (4.7)%   (5.2)%   (5.6)%   (7.9)%   (5.9)%   (8.0)%   (2.2)% 

Yield

  (3.8)%   (4.6)%   (7.4)%   (7.7)%   (4.8)%   (4.8)%   (3.1)% 

PRASM

  (4.2)%   (8.4)%   (6.7)%   (5.5)%   (5.4)%   (5.5)%   (2.7)% 

Passengers

  2.1 %   (3.7)%   0.7 %   5.7 %   2.0 %   4.9 %   (4.3)% 

RPMs (traffic)

  1.1 %   (4.3)%   2.7 %   5.4 %   0.8 %   1.4 %   (3.4)% 

ASMs (capacity)

  1.6 %   (0.2)%   2.0 %   2.9 %   1.4 %   2.1 %   (3.7)% 

Passenger load factor (points)

  (0.3)      (3.3)      0.6       2.0       (0.5)      (0.6)      0.3     

  (a) See Part II, Item 6, Selected Financial Data, of this report for the definition of these statistics.

Consolidated passenger revenue decreased $1.3 billion,

 2019 2018 Increase (Decrease) % Change
Interest expense$(731) $(670) $61
 9.1
Interest capitalized85
 65
 20
 30.8
Interest income133
 101
 32
 31.7
Unrealized gains (losses) on investments, net153
 (5) 158
 NM
Miscellaneous, net(27) (72) (45) (62.5)
Total nonoperating expense, net$(387) $(581) $(194) (33.4)
Interest expense increased $61 million, or 4.1%9.1%, in 20162019 as compared to 2015. Consolidated PRASM decreased 5.4%2018, primarily due to the conversion of certain operating leases to finance leases and debt issued for the acquisition of new aircraft.
Interest income increased $32 million, or 31.7%, in 20162019 as compared to 2015. The decline in PRASM was driven by factors including a competitive domestic fare environment, lower surcharges, a strong U.S. dollar and reductions from energy-related corporate travel.

Cargo revenue decreased $61 million, or 6.5%, in 2016 as compared to 2015 due to lower freight yields and lower mail volumes year-over-year, partially offset by an increase in freight volumes. Freight yields were negatively impacted as air freighter competitors increased capacity in response to lower fuel prices. Another contributing factor to the year-over-year decrease was a U.S. West Coast port labor dispute that resulted in an increase in air freight results in the first quarter of 2015. The labor dispute was resolved during the first quarter of 2015.

Operating Expense

The table below includes data related to the Company’s operating expense for the years ended December 31 (in millions, except percentage changes):

   2016   2015   Increase
(Decrease)
   % Change 

Salaries and related costs

   $10,275     $9,713     $562     5.8  

Aircraft fuel

   5,813     7,522     (1,709)    (22.7) 

Regional capacity purchase

   2,197     2,290     (93)    (4.1) 

Landing fees and other rent

   2,165     2,203     (38)    (1.7) 

Depreciation and amortization

   1,977     1,819     158     8.7  

Aircraft maintenance materials and outside repairs

   1,749     1,651     98     5.9  

Distribution expenses

   1,303     1,342     (39)    (2.9) 

Aircraft rent

   680     754     (74)    (9.8) 

Special charges

   638     326     312     NM  

Other operating expenses

   5,421     5,078     343     6.8  
  

 

 

   

 

 

   

 

 

   

Total operating expenses

   $32,218     $32,698     $(480)    (1.5) 
  

 

 

   

 

 

   

 

 

   

Salaries and related costs increased $562 million, or 5.8%, in 2016 as compared to 20152018, primarily due to higher pay rates and benefit expenses driven by new and extended collective bargaining agreements, an increaselevels of cash balances throughout the year.

Unrealized gains (losses) on investments, net increased $158 million in employee incentive expenses due to improvements in operational performance and a 2.2% increase in average full-time equivalent employees, partially offset by a reduction in profit sharing expense in 20162019 as compared to 2015, a reduction in medical and dental costs and the results of certain costs savings initiatives in 2016.

The decrease in aircraft fuel expense was primarily attributable to decreased fuel prices and a reduction in fuel hedge losses, partially offset by the impact of a 1.4% increase in capacity. 2016 fuel expense includes the benefit of a $20 million fuel tax refund. The table below presents the significant changes in aircraft fuel cost per gallon for the years ended December 31 (in millions, except percentage changes):

  (In millions)  %
Change
  Average price per gallon 
  2016  2015   2016  2015  %
Change
 
Total aircraft fuel purchase cost excluding fuel hedge impacts  $ 5,596    $ 6,918    (19.1)   $ 1.43    $ 1.78    (19.7) 
Hedge losses reported in fuel expense  217    604    NM    0.06    0.16    NM  
 

 

 

  

 

 

   

 

 

  

 

 

  

Fuel expense

  5,813    7,522    (22.7)   1.49    1.94    (23.2) 
Total fuel consumption (gallons)  3,904    3,886    0.5     

Depreciation and amortization increased $158 million, or 8.7%, in 2016 as compared to 20152018, primarily due to additions of new aircraft, conversions of operating leases to capital leases, aircraft improvements, accelerated depreciationthe change in market value of certain assets related to several fleet typesof its equity investments and increases in information technologyderivative assets.

Aircraft maintenance materials See Notes 9 and outside repairs increased $98 million, or 5.9%, in 2016 as compared to 2015 primarily due to a year-over-year increase in airframe maintenance visits as a result of the cyclical timing of these visits and volume-driven increases in component costs, partially offset by a reduction in costs due to the timing of maintenance on certain engines.

Aircraft rent decreased $74 million, or 9.8%, in 2016 as compared to 2015 primarily due to lease expirations, the purchase or capital lease conversion of several operating leased aircraft and lower lease renewal rates for certain aircraft.

The table below presents special charges incurred by the Company during the years ended December 31 (in millions):

   2016   2015 

Impairment of assets

   $412     $79  

Cleveland airport lease restructuring

   74     —  

Labor agreement costs

   64     18  

Severance and benefit costs

   37     107  

(Gains) losses on sale of assets and other special charges

   51     122  
  

 

 

   

 

 

 

Total special charges

   $638     $326  
  

 

 

   

 

 

 

See Note 14 to the financial statements included in Part II, Item 8 of this report for additional information.

Other operating expenses increased $343

Miscellaneous, net decreased $45 million, or 6.8%62.5%, in 20162019 as compared to 20152018, primarily due to increasesmore favorable foreign exchange rates and the remeasurement of postretirement plans due to a plan change.

Income Taxes. See Note 6 to the financial statements included in ground handling costs, food and technology costs associated with the Company’s enhanced customer experience initiatives, rate-driven increases in hotel expensesPart II, Item 8 of this report for crews, increases in marketing expensesinformation related to the 2016 Summer Olympics and volume-driven increases in cargo costs.

Nonoperating Income (Expense)

The following table illustrates the year-over-year dollar and percentage changes in the Company’s nonoperating income (expense) for the years ended December 31 (in millions, except percentage changes):

   2016   2015   Increase
(Decrease)
   % Change 

Interest expense

   $(614)    $(669)    $(55)    (8.2) 

Interest capitalized

   72     49     23     46.9  

Interest income

   42     25     17     68.0  

Miscellaneous, net

   (19)    (352)    (333)    (94.6) 
  

 

 

   

 

 

     

Total nonoperating expense, net

   $(519)    $(947)    $(428)    (45.2) 
  

 

 

   

 

 

     

The decrease in interest expense of $55 million, or 8.2%, in 2016 as compared to 2015 was primarily due to the prepayment of certain debt issuances in 2015 and declining balances of other debt, partially offset by interest expense on debt issued for the acquisition of new aircraft, the conversion of certain operating leases to capital leases and certain constructed airport assets accounted for as capital leases.

In 2015, Miscellaneous, net included losses of $80 million from fuel derivatives not qualifying for hedge accounting. Foreign currency losses were approximately $43 million and $129 million in 2016 and 2015, respectively. Foreign currency results included $8 million and $61 million of foreign exchange losses for 2016 and 2015, respectively, related to the Company’s cash holdings in Venezuela. Miscellaneous, net for 2015 also includes a $134 million special charge related to thewrite-off of unamortizednon-cash debt discounts for the early redemption of the 6% Notes due 2026 (the “2026 Notes”) and the 6% Notes due 2028 (the “2028 Notes”).

taxes.


Liquidity and Capital Resources

As of December 31, 2017,2019, the Company had $3.8$4.9 billion in unrestricted cash, cash equivalents and short-term investments, a decreasean increase of $0.6approximately $1.0 billion from December 31, 2016.2018. The Company had its entire commitment capacity of $2.0 billion under the revolving credit facility of the Company’s Amended and Restated Credit and Guaranty Agreement dated as of March 29, 2017 (as amended by the First Amendment to the Amended and Restated Credit and Guaranty Agreement, dated as of November 15, 2017, the “2017 Credit Agreement”) available for borrowings as of December 31, 2017. As of December 31, 2017, the Company had $109 million of restricted cash and cash equivalents, which is primarily collateral for letters of credit and collateral associated with obligations for facility leases and workers’ compensation. We may be required to post significant additional cash collateral to provide security for obligations. Restricted cash and cash equivalents at December 31, 2016 totaled $124 million.

2019.

We have a significant amount of fixed obligations, including debt, aircraft leases, and financings, leases of airport property and other facilities and pension funding obligations. At December 31, 2017,2019, the Company had approximately $14.4$14.8 billion of debt and capitalfinance lease obligations, including $1.7$1.5 billion that are due within the next 12 months. In addition, we have substantial noncancelable commitments for capital expenditures, including the acquisition of new aircraft and related spare engines. As of December 31, 2017,2019, our current liabilities exceeded our current assets by approximately $5.6$6.7 billion. However, approximately $6.1$7.3 billion of our current liabilities are related to our advance ticket sales and frequent flyer deferred revenue, both of which largely represent revenue to be recognized for travel in the near future and not cash outlays. The deficit in working capital does not have an adverse impact to our cash flows, liquidity or operations.

The Company will continue to evaluate opportunities to prepay its debt, including open market repurchases, to reduce its indebtedness and related interest.

For 2018,2020, the Company expects between $3.6 billion and $3.8approximately $7.0 billion of gross capital expenditures. See Note 13 to the financial statements included in Part II, Item 8 of this report for additional information on commitments.

As of December 31, 2017,2019, a substantial portion of the Company’sCompany's assets, principally aircraft, route authorities and airport slots, and loyalty program intangible assets, was pledged under various loan and other agreements. Collateral pledged under these loans continues to be sufficient to satisfy the loan covenants. We must sustain our profitability and/or access the capital markets to meet our significant long-term debt and capitalfinance lease obligations and future commitments for capital expenditures, including the acquisition of aircraft and related spare engines. See Note 10 to the financial statements included in Part II, Item 8 of this report for additional information on assets provided as collateral by the Company.

The following is a discussion of the Company’sCompany's sources and uses of cash from 2015 through 2017.

Operating Activities

2017for 2019 as compared to 2016

2018. See "Liquidity and Capital Resources" in Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations in the 2018 Annual Report for a discussion of the Company's sources and uses of cash in 2018 as compared to 2017.

Operating Activities. Cash flow provided by operations for the year ended December 31, 20172019 was $3.4$6.9 billion compared to $5.5$6.2 billion in the same period in 2016, the decrease resulting from lower2018. The increase is primarily attributable to an increase in operating income and reduced cash flows from certain changes in working capital items. Excludingthe non-cash impairment of the Newark slots, operating incomewhich was $4.3 billion for 2017 was approximately $1.2 billion lower than 2016. Working capital changes reduced cash flow from operations by an additional $1.2 billion year-over-year in 20172019 as compared to 2016. $3.2 billion for 2018.
Investing Activities. The following were significant working capital items in 2017:

$0.9 billion decrease in advanced purchase of miles due to increased utilizationof pre-purchased miles.

$0.4 billion increase in prepayments for maintenance contracts.

2016 compared to 2015

Cash flow provided by operations for the year ended December 31, 2016 was $5.5 billion compared to $6.0 billion in the same period in 2015. Working capital changes reduced cash flow from operations by

$0.5 billion year-over-year in 2016 as compared to 2015. The following were significant working capital items in 2016:

Frequent flyer and advance purchase of miles decreased $0.6 billion due to increased utilization ofpre-purchased miles.

Other assets, including spare parts, increased by $0.3 billion as part of the Company’s efforts to improve fleet reliability.

Accounts payable increased $0.2 billion, driven by the timing of payments.

Investing Activities

2017 compared to 2016

The Company’sCompany's capital expenditures were $4.0$4.5 billion and $3.2$4.1 billion in 2017and 2016,2019and 2018, respectively. The Company’sCompany's capital expenditures for both years were primarily attributable to the purchase of new aircraft, aircraft improvements, facility and fleet-related costs and the purchase of information technology assets.

2016 compared to 2015

The Company’s capital expenditures were $3.2 billion and $2.7 billion in 2016and 2015, respectively. The Company’s capital expenditures for both years were primarily attributable

In December 2019, United issued the AVH Convertible Loan. For additional information regarding the AVH Convertible Loan, see Note 8 to the purchasefinancial statements included in Part II, Item 8 of aircraft, facilitythis report.
In November 2018, United, as lender, entered into a Term Loan Agreement (the "BRW Term Loan Agreement") with, among others, BRW Aviation Holding LLC and fleet-related costsBRW Aviation LLC ("BRW"), as guarantor and borrower, respectively. BRW Aviation Holding LLC and BRW are affiliates of Synergy Aerospace Corporation, and BRW is the purchasemajority shareholder of AVH. Pursuant to the BRW Term Loan Agreement, United provided to BRW a $456 million term loan (the "BRW Term Loan"), secured by a pledge of BRW's equity, as well as BRW's 516 million common shares of AVH (which are eligible to be converted into the same number of preferred shares, which may be deposited with the depositary for AVH's American Depositary Receipts ("ADRs"), the class of AVH securities that trades on the New York Stock Exchange (the "NYSE"), in exchange for 64.5 million ADRs) (such equity and shares, collectively, the "BRW Loan Collateral"). BRW is currently in default under the BRW Term Loan Agreement. The BRW Term Loan was made in conjunction with a revenue-sharing joint business agreement among United, Aerovías del Continente Americano S.A ("Avianca"), a subsidiary of AVH, and Copa as described in Part 1, Item 1 of this report. For additional information technology assets.

regarding the BRW Term Loan Agreement and related agreements, see Notes 8, 9 and 13 to the financial statements included in Part II, Item 8 of this report.

In April 2018, through a wholly-owned subsidiary, the Company invested $138 million in Azul Linhas Aéreas Brasileiras S.A. ("Azul") thus increasing its preferred equity stake in Azul to approximately 8% (representing approximately 2% of the total capital stock of Azul).

Financing Activities

Activities. Significant financing events in 20172019 were as follows:

Share Repurchases

Repurchases. The Company used $1.8$1.6 billion of cash to purchase approximately 2819.2 million shares of its common stock during 2017, completing its July 2016 repurchase authorization.2019. In December 2017, UAL’sUAL's Board of Directors authorized a $3.0 billion share repurchase program to acquire UAL's common stock. In July 2019, UAL's Board of Directors authorized a new $3.0 billion share repurchase program to acquire UAL’sUAL's common stock. As of December 31, 2017,2019, the Company had approximately $3.0$3.1 billion remaining to purchase shares under its share repurchase program.

programs.

Debt Issuances

Issuances. During 2017,2019, United received and recorded $1.8 billion of proceeds as debt related to enhanced equipment trust certificate (“EETC”("EETC") offerings created in 2016 and 20172019 to finance the purchase of aircraft.

In 2017, UAL issued, Also, United received and United guaranteed, (i) $400recorded $350 million aggregate principal amount of unsecured 4.25%proceeds from the 4.875% Senior Notes due October 1, 2022,January 15, 2025 and (ii) $300 million aggregate principal amount of unsecured 5% Senior Notes due February 1, 2024.

In 2017, United and UAL, as borrower and guarantor, respectively, increased the term loan under the 2017 Credit Agreement by approximately $440 million.

During 2017, United borrowed approximately $497$105 million aggregate principal amount from various financial institutions to finance the purchase of several aircraft delivered in 2017.

2019. As of December 31, 2019, United had recorded approximately $39 million of debt to finance the construction of an aircraft maintenance and ground service equipment complex at Los Angeles International Airport.

Debt and CapitalFinance Lease Principal Payments

Payments. During the year ended December 31, 2017,2019, the Company made debt and capitalfinance lease principal payments of $1.0$1.4 billion.

Significant financing events in 20162018 were as follows:

Share Repurchases

Repurchases. The Company used $2.6$1.2 billion of cash to purchase 50approximately 17.5 million shares of its common stock during 2016 under its share repurchase programs.

2018.

Debt Issuances

In 2016, United completed two EETC offerings for a total principal amount of $2.0 billion. Of the $2.0 billion,Issuances. During 2018, United received and recorded $708 million$1.2 billion of proceeds as debt as of December 31, 2016related to EETC offerings created in 2018 to finance the purchase of 17 aircraft.

In 2016, Also, United borrowed approximately $369$424 million aggregate principal amount from various financial institutions to finance the purchase of several aircraft delivered in 2016.

2018.

Debt and CapitalFinance Lease Principal Payments

Payments. During the year ended December 31, 2016,2018, the Company made debt and capitalfinance lease principal payments of $1.4$1.8 billion.

Significant financing events in 2015 were as follows:

Share Repurchases

The Company used $1.2 billion of cash to purchase 21 million shares of its common stock during 2015 under its share repurchase programs.

Debt Issuances

During 2015, United issued $1.4 billion of debt related to EETC offerings to finance aircraft.

In 2015, United borrowed approximately $590 million aggregate principal amount from various financial institutions to finance the purchase of several aircraft delivered in 2015.

Debt and Capital Lease Principal Payments

During the year ended December 31, 2015, the Company made debt and capital lease principal payments of $2.3 billion, including the following prepayments:

UAL used cash to repurchase all $321 million par value 2026 Notes.

UAL used cash to repurchase all $311 million par value 2028 Notes.

UAL used cash to prepay, at par, $300 million principal amount of its $500 million term loan due September 2021.

For additional information regarding these Liquidity and Capital Resource matters, see Notes 3,2, 10, 11 and 12 13to the financial statements included in Part II, Item 8 of this report. For information regardingnon-cash investing and financing activities, see the Company’sCompany's statements of consolidated cash flows.

Credit Ratings. As of the filing date of this report, UAL and United had the following corporate credit ratings:

 S&P Moody’sMoody's Fitch
UALBB-BB Ba2 BB
UnitedBB-BB * BB
*The credit agency does not issue corporate credit ratings for subsidiary entities.

These credit ratings are below investment grade levels.levels; however, the Company has been able to secure financing with investment grade credit ratings for certain EETCs and term loans. Downgrades from these rating levels, among other things, could restrict the availability, or increase the cost, of future financing for the Company.

Other Liquidity Matters

Below is a summary of additional liquidity matters. See the indicated notes to our consolidated financial statements included in Part II, Item 8 of this report for additional details related to these and other matters affecting our liquidity and commitments.

Pension and other postretirement plans

Note 87

Long-term debt and debt covenants

Note 10

Leases and capacity purchase agreements

Note 11

Commitments and contingencies

Note 13

Contractual Obligations. The Company’sCompany's business is capital intensive, requiring significant amounts of capital to fund the acquisition of assets, particularly aircraft. In the past, the Company has funded the acquisition of aircraft through outright purchase,with cash, by issuing debt,using EETC financing, by entering into capitalfinance or operating leases, or through vendorother financings. The Company also often enters into long-term lease commitments with airports to ensure access to terminal, cargo, maintenance and other required facilities.

The table below provides a summary of the Company’sCompany's material contractual obligations as of December 31, 20172019 (in billions):

  2018  2019  2020  2021  2022  After
2022
  Total 

Long-term debt (a)

   $1.6      $1.2      $1.2      $1.2      $1.5      $6.9      $13.4   

Capital lease obligations—principal portion

  0.1     0.1     0.1     0.1     0.1     0.8     1.1   
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total debt and capital lease obligations

  1.7     1.3     1.3     1.3     1.6     7.7     14.5   

Interest on debt and capital lease obligations (b)

  0.6     0.5     0.5     0.4     0.4     1.0     3.4   

Aircraft operating lease obligations

  1.0     0.9     0.6     0.5     0.4     1.5     4.9   

Regional CPAs (c)

  2.0     1.8     1.6     1.5     1.4     3.2     11.5   

Other operating lease obligations

  1.2     1.1     1.2     0.9     0.8     6.1     11.3   

Postretirement obligations (d)

  0.1     0.1     0.1     0.1     0.1     0.6     1.1   

Pension obligations (e)

  —     —     —     —     0.1     0.7     0.8   

Capital purchase obligations (f)

  3.2     2.9     2.1     2.4     1.8     9.8     22.2   
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total contractual obligations

   $9.8      $8.6      $7.4      $7.1      $6.6      $30.6      $69.7   

 

 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 
(a)Long-term debt presented in the Company’s financial statements is net of $163 million of debt discount, premiums and debt issuance costs which are being amortized over the debt terms. Contractual payments are not net of the debt discount, premiums and debt issuance costs.
(b)Includes interest portion of capital lease obligations of $72 million in 2018, $63 million in 2019, $59 million in 2020, $56 million in 2021, $52 million in 2022 and $391 million thereafter. Interest payments on variable interest rate debt were calculated using London interbank offered rates (“LIBOR”) applicable at December 31, 2017.
(c)Represents our estimates of future minimum noncancelable commitments under our CPAs and does not include the portion of the underlying obligations for aircraft and facility rent that is disclosed as part of aircraft and nonaircraft operating leases. Amounts also exclude a portion of United’s capital lease obligation recorded for certain of its CPAs. See Note 11 to the financial statements included in Part II, Item 8 of this report for the significant assumptions used to estimate the payments.
(d)Amounts represent postretirement benefit payments, net of subsidy receipts, through 2026. Benefit payments approximate plan contributions as plans are substantially unfunded.
(e)Represents an estimate of the minimum funding requirements as determined by government regulations for United’s U.S. pension plans. Amounts are subject to change based on numerous assumptions, including the performance of assets in the plans and bond rates. SeeCritical Accounting Policies, below, for a discussion of our current year assumptions regarding United’s pension plans.
(f)Represents contractual commitments for firm order aircraft, spare engines and other capital purchase commitments. See Note 13 to the financial statements included in Part II, Item 8 of this report for a discussion of our purchase commitments.


  2020 2021 2022 2023 2024 After 2024 Total
Long-term debt (a) $1.4
 $1.4
 $1.8
 $0.8
 $3.1
 $6.2
 $14.7
Finance lease obligations—principal portion 0.1
 0.1
 
 
 
 0.1
 0.3
Total debt and finance lease obligations 1.5
 1.5
 1.8
 0.8
 3.1
 6.3
 15.0
Interest on debt and finance lease obligations (b) 0.6
 0.5
 0.4
 0.4
 0.3
 0.7
 2.9
Operating lease obligations 0.9
 0.8
 0.6
 0.6
 0.6
 4.2
 7.7
Regional CPAs (c) 2.9
 2.9
 2.4
 1.5
 1.3
 4.7
 15.7
Postretirement obligations (d) 0.1
 0.1
 0.1
 0.1
 0.1
 0.3
 0.8
Pension obligations (e) 
 
 
 
 0.4
 0.6
 1.0
Capital purchase obligations (f) 6.9
 4.3
 2.0
 1.0
 1.2
 11.3
 26.7
Total contractual obligations $12.9
 $10.1
 $7.3
 $4.4
 $7.0
 $28.1
 $69.8
(a) Long-term debt presented in the Company's financial statements is net of $181 million of debt discount, premiums and debt issuance costs which are being amortized over the debt terms. Contractual payments do not include the debt discount, premiums and debt issuance costs.
(b) Includes interest portion of finance lease obligations of $14 million in 2020, $11 million in 2021, $8 million in 2022, $6 million in 2023, $4 million in 2024 and $5 million thereafter. Interest payments on variable interest rate debt were calculated using London interbank offered rates ("LIBOR") applicable at December 31, 2019.
(c) Represents our estimates of future minimum noncancelable commitments under our CPAs and does not include the portion of the underlying obligations for aircraft and facility rent that is disclosed as part of operating lease obligations. Amounts also exclude a portion of United's finance lease obligation recorded for certain of its CPAs. See Note 11 to the financial statements included in Part II, Item 8 of this report for the significant assumptions used to estimate the payments.
(d) Amounts represent postretirement benefit payments through 2029. Benefit payments approximate plan contributions as plans are substantially unfunded.
(e) Represents an estimate of the minimum funding requirements as determined by government regulations for United's U.S. pension plans. Amounts are subject to change based on numerous assumptions, including the performance of assets in the plans and bond rates.
(f) Represents contractual commitments for firm order aircraft, spare engines and other capital purchase commitments. See Note 13 to the financial statements included in Part II, Item 8 of this report for a discussion of our purchase commitments.
Off-Balance Sheet Arrangements.Anoff-balance sheet arrangement is any transaction, agreement or other contractual arrangement involving an unconsolidated entity under which a company has (1) made guarantees, (2) a retained or a contingent interest in transferred assets, (3) an obligation under derivative instruments classified as equity, or (4) any obligation arising out of a material variable interest in an unconsolidated entity that provides financing, liquidity, market risk or credit risk support, or that engages in leasing, hedging or research and development arrangements. The Company’sCompany's primaryoff-balance sheet arrangements include guarantees that are discussed below and variable-rate operating leases, which are summarizedleases. See Note 11 to the financial statements included in the contractual obligations table underContractual Obligations,above,Part II, Item 8 of this report for more information related to variable-rate operating leases.
Letters of Credit and certain municipal bond obligations, as discussed below.

Surety Bonds. As of December 31, 2017,2019, United had cash collateralized $75$73 million of letters of credit. United also had $362 million of surety bonds securing various obligations at December 31, 2017. Most of the letters of credit, which generally have evergreen clauses and are expected to be renewed on an annual basis. The surety bonds have expiration dates through 2021.

As of December 31, 2017,2019, United also had $414 million of surety bonds securing various obligations with expiration dates through 2023.

Guarantee of BRW Commitment. In connection with funding the BRW Term Loan Agreement, the Company entered into an agreement with Kingsland, pursuant to which, in return for Kingsland's pledge of its 144.8 million common shares of AVH (which are eligible to be converted into the same number of preferred shares, which may be deposited with the depositary for AVH's ADRs, the class of AVH securities that trades on the NYSE, in exchange for 18.1 million ADRs) and its consent to BRW's pledge of its AVH common shares to United under the BRW Term Loan Agreement and related agreements, United (1) granted to Kingsland the right to put its AVH common shares to United at market price on the fifth anniversary of the BRW Term Loan Agreement or upon certain sales of AVH common shares owned by BRW, including upon a foreclosure, and (2) guaranteed BRW's obligation to pay Kingsland the difference (which amount, if paid by United, will increase the BRW Term Loan by such amount) if the market price of AVH common shares on the fifth anniversary, or upon any such sale, as applicable, is less than $12 per ADR, for an aggregate maximum possible combined put payment and guarantee amount on the fifth anniversary, or upon such sale, as applicable, of $217 million. In 2018, the Company recorded a liability of $31 million for the fair value of its guarantee to loan additional funds to BRW if required. Any such additional loans to BRW would be collateralized by BRW's AVH shares and other collateral.
Guarantee of Debt of Others. As of December 31, 2019, United is the guarantor of approximately $1.8 billion in aggregate principal amount oftax-exempt special facilities revenue bonds and interest thereon. These bonds, issued by various airport municipalities, are payable solely from rentals paid under long-term agreements with the respective governing bodies. The leasing arrangements associated with a majority of these obligations are accounted for as operating leases. The leasing arrangements associated with a portion of these obligations are accounted for as capital leases. The annual lease payments for those obligations are included in the contractual obligations table underContractual Obligations,above.

As of December 31, 2017, United is the guarantor of $157$132 million of aircraft mortgage debt issued by one of United’sUnited's regional carriers. The aircraft mortgage debt is subject to increased cost provisions and the Company would potentially be responsible for those costs under the guarantees. The increased cost provisions in the $157$132 million of aircraft mortgage debt are similar to those in certain of the Company’sCompany's debt agreements. See discussion underIncreased Cost Provisions,below, for additional information on increased cost provisions related to the Company’sCompany's debt.


EETCs.As of December 31, 2017,2019, United had $8.6$9.6 billion principal amount of equipment notes outstanding issued under EETC financings. Generally, the structure of these EETC financings consists of pass-through trusts created by United to issue pass-through certificates, which represent fractional undivided interests in the respective pass-through trusts and are not obligations of United. The proceeds of the issuance of the pass-through certificates are used to purchase equipment notes which are issued by United and secured by its aircraft. The payment obligations under the equipment notes are those of United. Proceeds received from the sale of pass-through certificates are initially held by a depositary in escrow for the benefit of the certificate holders until United issues equipment notes to the trust, which purchases such notes with a portion of the escrowed funds. These escrowed funds are not guaranteed by United and are not reported as debt on United’sUnited's consolidated balance sheet because the proceeds held by the depositary are not United’sUnited's assets.

The total amount of EETC funds held in escrow was $328 million as of December 31, 2019. See Note 10 to the financial statements included in Part II, Item 8 of this report for additional information.

Fuel Consortia. United participates in numerous fuel consortia with other air carriers at major airports to reduce the costs of fuel distribution and storage. Interline agreements govern the rights and responsibilities of the consortia members and provide for the allocation of the overall costs to operate the consortia based on usage. The consortia (and in limited cases, the participating carriers) have entered into long-term agreements to lease certain airport fuel storage and distribution facilities that are typically financed through tax-exempt bonds, either special facilities lease revenue bonds or general airport revenue bonds, issued by various local municipalities. In general, each consortium lease agreement requires the consortium to make lease payments in amounts sufficient to pay the maturing principal and interest payments on the bonds. As of December 31, 2019, approximately $1.9 billion principal amount of such bonds were secured by significant fuel facility leases in which United participates, as to which United and each of the signatory airlines has provided indirect guarantees of the debt. As of December 31, 2019, the Company's contingent exposure was approximately $175 million principal amount of such bonds based on its recent consortia participation. The Company's contingent exposure could increase if the participation of other air carriers decreases. The guarantees will expire when the tax-exempt bonds are paid in full, which ranges from 2022 to 2051. The Company did not record a liability at the time these indirect guarantees were made.
Increased Cost Provisions. In United’sUnited's financing transactions that include loans in which United is the borrower, United typically agrees to reimburse lenders for any reduced returns with respect to the loans due to any change in capital requirements and, in the case of loans inwith respect to which the interest rate is based on LIBOR, for certain other increased costs that the lenders incur in carrying these loans as a result of any change in law, subject, in most cases, to obligations of the lenders to take certain limited steps to mitigate the requirement for, or the amount of, such increased costs. At December 31, 2017,2019, the Company had $3.4$3.4 billion of floating rate debt and $60 million of fixed rate debt with remaining terms of up to 11 years that are subject to these increased cost provisions. In several financing transactions involving loans or leases fromnon-U.S. entities, with remaining terms of up to 11 years and an aggregate balance of $3.3$3.2 billion, the Company bears the risk of any change in tax laws that would subject loan or lease payments thereunder tonon-U.S. entities to withholding taxes, subject to customary exclusions.

Fuel Consortia.United participates in numerous fuel consortia with other air carriers at major airports to reduce the costs of fuel distribution and storage. Interline agreements govern the rights and responsibilities of the consortia members and provide for the allocation of the overall costs to operate the consortia based on usage. The

consortia (and in limited cases, the participating carriers) have entered into long-term agreements to lease certain airport fuel storage and distribution facilities that are typically financed throughtax-exempt bonds (either special facilities lease revenue bonds or general airport revenue bonds), issued by various local municipalities. In general, each consortium lease agreement requires the consortium to make lease payments in amounts sufficient to pay the maturing principal and interest payments on the bonds. As of December 31, 2017, approximately $1.5 billion principal amount of such bonds were secured by significant fuel facility leases in which United participates, as to which United and each of the signatory airlines has provided indirect guarantees of the debt. As of December 31, 2017, the Company’s contingent exposure was approximately $244 million principal amount of such bonds based on its recent consortia participation. The Company’s contingent exposure could increase if the participation of other air carriers decreases. The guarantees will expire when thetax-exempt bonds are paid in full, which ranges from 2022 to 2049. The Company did not record a liability at the time these indirect guarantees were made.

Critical Accounting Policies

Critical accounting policies are defined as those that are affected by significant judgments and uncertainties which potentially could result in materially different accounting under different assumptions and conditions. The Company has prepared the financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”("GAAP"), which requires management to make estimates and assumptions that affect the reported amounts in the financial statements. Actual results could differ from those estimates under different assumptions or conditions. The Company has identified the following critical accounting policies that impact the preparation of the financial statements.

Revenue Recognition. The Company records passenger ticket sales

Frequent Flyer Accounting. United's MileagePlus loyalty program builds customer loyalty by offering awards, benefits and tickets sold by other airlinesservices to program participants. Members in this program earn miles for usetravel on United, as passenger revenue when the transportation is provided or upon estimated breakage. The value of unused passenger tickets is included in current liabilities as Advance ticket sales. Tickets sold by other airlines are recorded at the estimated values to be billed to the other airlines. Differences between amounts billed and the actual amounts may be rejected and rebilled or written off if the amount recorded was different from the original estimate. When necessary, the Company records a reserve against its interline billings and payables if historical experience indicates that these amounts are different.Non-refundable tickets generally expire on the date of the intended flight, unless the date is extended by notification from the customer on or before the intended flight date. Basic Economy tickets cannot be extended and refunds are not allowed except for ticket cancellations that are within 24 hours of purchase and one week or more prior to the original scheduled departure flight.

Fees charged in association with changes or extensions tonon-refundable tickets are recorded as other revenue at the time the fee is incurred. The fare on the changed ticket, including any additional collection of fare, is deferred and recognized in accordance with our transportation revenue recognition policy at the time the transportation is provided. Change fees related tonon-refundable tickets are considered a separate transaction from the air transportation because they represent a charge for the Company’s additional service to modify a previous sale. Therefore, the pricing of the change fee and the initial customer order are separately determined and represent distinct earnings processes.

The Company records an estimate of breakage revenue on the flight date for tickets that will expire unused. These estimates are based on the evaluation of actual historical results and forecasted trends. Refundable tickets expire after one year from the date of issuance.

The Financial Accounting Standards Board (“FASB”) issued Accounting Standards UpdateNo. 2014-09,Revenue from Contracts with Customers (Topic 606)(“Topic 606”). Topic 606 prescribes that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard impacts the classification of certain revenue streams and affects the timing of revenue and expense recognition for others. For the Company, the most significant impact of the standard is the reclassification of certain ancillary fees from other operating revenue into passenger revenue on the statement of consolidated operations. For 2016 and 2017, the amount to be

reclassified at adoption of the new standard from other operating revenue into passenger revenue under Topic 606 is approximately $2.0 billion and $2.1 billion, respectively. These ancillary fees are directly related to passenger travel, such as ticket change fees and baggage fees, and will no longer be considered distinct performance obligations separate from the passenger travel component. In addition, the ticket change fees, which were previously recognized when received, will be recognized when transportation is provided. On January 1, 2018, we adopted Topic 606 using the full-retrospective approach. See Note 1 to the financial statements included in Part II, Item 8 of this report for additional information on recently issued accounting standards.

Frequent Flyer Accounting.United’s MileagePlus program is designed to increase customer loyalty. Program participants earn miles by flying on United Express, Star Alliance members and certain other participating airlines. Program participantsairlines that participate in the program. Members can also earn miles through purchasesby purchasing goods and services from otherour network of non-airline partners that participate in United’s loyalty program. partners. We have contracts to sell miles to these partners whichwith the terms extending from one to nine years. These partners include domestic and international credit card issuers, retail merchants, hotels, car rental companies and our participating airline partners. Miles can be redeemed for free (other than taxes and government imposedgovernment-imposed fees), discounted or upgraded air travel andnon-travel awards. The Company records its obligation for future award redemptions using a deferred revenue model.

Miles Earned in Conjunction with Travel.When frequent flyers earn miles for flights, the Company recognizes a portion of the ticket sales as revenue when the air transportationtravel occurs and defers a portion of the ticket sale representing the value of the related miles as a multiple-deliverable revenue arrangement.separate performance obligation. The Company determines the estimated selling price of air transportationtravel and miles as if each element is sold on a separate basis. The total consideration from each ticket sale is then allocated to each of these elements, individually, on a pro ratapro-rata basis. TheAt the time of travel, the Company records the portion allocated to the miles are recorded into Frequent flyer deferred revenue on the Company’sCompany's consolidated balance sheet and recognizedsubsequently recognizes it into revenue when the transportation is provided.

The Company’s estimated selling price of miles is based on an equivalent ticket value less fulfillment discount, which incorporates the expected redemption of miles, as the best estimate of selling priceare redeemed for these miles. The equivalent ticket value is based on the prior 12 months’ weighted average equivalent ticket value of similar fares as those used to settle award redemptions while taking into consideration such factors as redemption pattern, cabin class, loyalty statusair travel and geographic region. The estimated selling price of miles is adjusted by a fulfillment discount that considers a number of factors, including redemption patterns of various customer groups.

non-air travel awards.


Co-Brand Agreement. United has a significant contract (the "Co-Brand Agreement") to sell MileagePlus miles to itsco-branded credit card partner Chase.JPMorgan Chase Bank, N.A. ("Chase"). Chase awards miles to MileagePlus members based on their credit card activity. United identified the following significant revenue elementsseparately identifiable performance obligations in its Second Amendedthe Co-Brand Agreement:
MileagePlus miles awarded – United has a performance obligation to provide MileagePlus cardholders with miles to be used for air travel and non-travel award redemptions. The Company records Passenger revenue related to the travel awards when the transportation is provided and records Other revenue related to the non-travel awards when the goods or services are delivered. The Company records the cost associated with non-travel awards in Other operating revenue.
Marketing – United has a performance obligation to provide Chase access to United's customer list and the use of United's brand. Marketing revenue is recorded to Other operating revenue as miles are delivered to Chase.
Advertising – United has a performance obligation to provide advertising in support of the MileagePlus card in various customer contact points such as United's website, email promotions, direct mail campaigns, airport advertising and in-flight advertising. Advertising revenue is recorded to Other operating revenue as miles are delivered to Chase.
Other travel-related benefits – United's performance obligations are comprised of various items such as waived bag fees, seat upgrades and lounge passes. Lounge passes are recorded to Other operating revenue as customers use the lounge passes. Bag fees and seat upgrades are recorded to Passenger revenue at the time of the associated travel.
We account for all the payments received (including monthly and RestatedCo-Branded Card Marketing Servicesone-time payments) under the Co-Brand Agreement (the“Co-Brand Agreement”):by allocating them to the air transportation element represented by the value of the mile (generally resulting from its redemption for future air transportation and whose fair value is described above); use of the United brand and access to MileagePlus member lists; advertising; and other travel related benefits.

separately identifiable performance obligations. The fair value of the elementsseparately identifiable performance obligations is determined using management’smanagement's estimated selling price of each element.component. The objective of using the estimated selling price based methodology is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. Accordingly, we determine our best estimate of selling price by considering multiple inputs and methods including, but not limited to, discounted cash flows, brand value, volume discounts, published selling prices, number of miles awarded and number of miles redeemed. The Company estimated the selling prices and volumes over the term of theCo-Brand Agreement in order to determine the allocation of proceeds to each of the multiple elementscomponents to be delivered. We also evaluate volumes on an annual basis, which may result in a change in the allocation of the estimated selling priceconsideration from the Co-Brand Agreement on a prospective basis.

In February 2020, the Company announced that they had entered into a Third Amended and Restated Co-Branded Card Marketing Services Agreement (as amended from time to time, the "Agreement") with Chase. The Agreement, which replaces the Co-Brand Agreement, also extends the term into 2029 and modifies certain other terms. We will continue to account for the considerations received under the Agreement to the separately identifiable performance obligations using the estimated selling price allocation methodology explained above. In connection with the Agreement the Company, entered into an Amended and Restated Co-Branded Card Strategic Alliance Agreement with Visa U.S.A. Inc.
Estimate of Miles Not Expected to be Redeemed. The Company's estimated selling price of miles is based on an equivalent ticket value less breakage, which incorporates the expected redemption of miles, as the best estimate of selling price for these miles. The equivalent ticket value is based on the prior 12 months' weighted average equivalent ticket value of similar fares as those used to settle award redemptions while taking into consideration such factors as redemption pattern, cabin class, loyalty status and geographic region. The estimated selling price of miles is adjusted by breakage that considers a number of factors, including redemption patterns of various customer groups. The Company's breakage model is based on the assumption that the likelihood that an account will redeem its miles can be estimated based on a consideration of the account's historical behavior. The Company records passenger revenue relateduses a logit regression model to estimate the air transportation element when the transportation is delivered. The other elements are generally recognized as Other operating revenue when earned.

The Company accounts forprobability that an account will redeem its current miles sold and awarded that will never be redeemed by program members, which we refer to as breakage.balance. The Company reviews its breakage estimates annually based upon the latest available information regarding redemption and expiration patterns. Miles expire after 18 months of member account

inactivity.information. The Company’sCompany's estimate of the expected expirationbreakage of miles requires significant management judgment. Current and future changes to expirationbreakage assumptions, or to the expiration policy, or to program rules and program redemption opportunities, may result in material changes to the deferred revenue balance as well as recognized revenues from the programs.

program. For the portion of the outstanding miles that we estimate will not be redeemed, we recognize the associated value proportionally as the remaining miles are redeemed.

The following table summarizes information related to the Company’sCompany's Frequent flyer deferred revenue liability:

Frequent flyer deferred revenue at December 31, 2017 (in millions)

$4,741   

Percentage of miles earned expected to expire

18%

Impact of 1% change in outstanding miles or weighted average ticket value on deferred revenue (in millions)

$53   

Long-Lived Assets.

Frequent flyer deferred revenue at December 31, 2019 (in millions) $5,276
Percentage of miles earned not expected to be redeemed 14%
Impact of 1% change in outstanding miles expected to be redeemed or weighted average ticket value on deferred revenue (in millions) $53

BRW Notes Receivable.The net bookBRW Term Loan, currently in default, is secured by a pledge of BRW's equity, as well as BRW's 516 million common shares of AVH. In order to protect the value of operating propertyits collateral, on May 24, 2019, United began to exercise certain remedies available to it under the terms of the BRW Term Loan Agreement and equipment forrelated documents. In connection with the Companydelivery by United of a notice of default to BRW, Kingsland Holdings Limited ("Kingsland"), AVH's largest minority shareholder, was $26 billion and $23 billion atgranted, in accordance with the agreements related to the BRW Term Loan Agreement, authority to manage BRW, which remains the majority shareholder of AVH. In addition, Kingsland is pursuing a foreclosure process which is expected to result in a judicially supervised sale of the collateral, following the grant of summary judgment by a New York state court on September 26, 2019.
United evaluated the $499 million carrying value of the BRW Term Loan as of December 31, 2017 and 2016, respectively. The assets’ recorded2019 using the fair value is impacted by a number of accounting policy elections, including the estimation of useful lives and residual values and, when necessary, the recognition of asset impairment charges.

The Company records assets acquired, including aircraft, at acquisition cost. Depreciable life is determined through economic analysis, such as reviewing existing fleet plans, obtaining appraisals and comparing estimated lives to other airlines that operate similar fleets. The Company has generally estimated the lives of those aircraft to be between 25 and 30 years. Residual values are estimated based on historical experience with regard to the sale of both aircraft and spare parts and are established in conjunction with the estimated useful lives of the related fleets. Residual values are based on whencollateral and determined that the aircraft are acquired and typically reflect asset values that have not reached the end of their physical life. Both depreciable lives and residual values are revised periodically as facts and circumstances arise to recognize changes in the Company’s fleet plan and other relevant information. Aone-year increase in the average depreciable lifevalue of the Company’s flight equipment would reduce annual depreciation expense on flight equipment by approximately $76 million.

The Company evaluatescollateral is sufficient to recover the carrying value of long-lived assets and intangible assets subject to amortization whenever events or changes in circumstances indicate that an impairment may exist. For purposes of this testing,the BRW Term Loan. As a result, the Company has generally identifiedconcluded that the aircraft fleet type as the lowest level of identifiable cash flows for purposes of testing aircraft for impairment. An impairment chargeBRW Term Loan is recognized when the asset’snot impaired. The carrying value exceeds its net undiscountedof the BRW Term Loan represents the original loan amount plus accrued and unpaid interest and certain expenses associated with the loan origination.

The fair market value of AVH equity was estimated using an income approach and a market approach with equal weight applied to each approach. Under the income approach, the value was estimated by discounting expected future cash flows at a weighted average cost of capital to a single present value amount. Under the market approach, the value was estimated by reference to multiples of enterprise value to earnings before interest, taxes, depreciation, amortization and its fairrent ("EBITDAR") for a group of publicly-traded market value. The amount of the charge is the difference between the asset’s carrying value and fair market value.

comparable companies, along with AVH's own EBITDAR levels.

See Note 148 to the financial statements included in Part II, Item 8 of this report for additional information.

Indefinite-lived intangible assets.The Company has indefinite-lived intangible assets, including goodwill. Goodwill and indefinite-lived intangible assets are not amortized but are reviewed for impairment on an annual basis as of October 1, or on an interim basis whenever a triggering event occurs. An impairment occurs when the fair value of an intangible asset is less than its carrying value. In 2017,The Company determines the Hong Kong routes had a fair value cushion that was less than 10% of its carrying value. The valueusing a variation of the routes was negatively impactedincome approach known as the excess earnings method, which discounts an asset's projected future net cash flows to determine the current fair value. Assumptions used in the discounted cash flow methodology include a discount rate, which is based upon the Company's current weighted average cost of capital plus an asset-specific risk factor, and a projection of sales, expenses, gross margin, tax rates and contributory asset charges for several future years and a terminal growth rate. The assumptions used for future projections are determined based upon the Company's asset-specific forecasts along with the Company's strategic plan. These assumptions are inherently uncertain as they relate to future events and circumstances. Actual results will be influenced by the slowdown of the Hong Kong market coupled with industry oversupply. Ascompetitive environment, fuel costs and other expenses, and potentially other unforeseen events or circumstances that could have a result, this intangible asset is susceptible to impairment risk from adverse changes in this particular market. While management has implemented strategies to address the shifts in supply and demand dynamics, further adverse changes could reduce the underlying cash flows used to estimate fair value and could trigger impairment charges of the Hong Kong routes.

material impact on future results.

See Note 21 and 14 to the financial statements included in Part II, Item 8 of this report for additional information.

Defined Benefit Plan Accounting.We sponsor defined benefit pension plans for eligible employees and retirees. The most critical assumptions impacting our defined benefit pension plan obligations and expenses are the weighted average discount rate and the expected long-term rate of return on the plan assets.

United’s pension plans’ under-funded status was $1.9 billion at December 31, 2017. Funding requirements fortax-qualified defined benefit pension plans are determined by government regulations. In 2018, we anticipate

contributing at least $420 million to our pension plans. The fair value of the plans’ assets was $3.9 billion at December 31, 2017.

When calculating pension expense for 2018, the Company assumed that its plans’ assets would generate a long-term rate of return of approximately 7.3%. The expected long-term rate of return assumption was developed based on historical experience and input from the trustee managing the plans’ assets. The expected long-term rate of return on plan assets is based on a target allocation of assets, which is based on a goal of earning the highest rate of return while maintaining risk at acceptable levels. Our projected long-term rate of return reflects the active management of our plans’ assets. The plans strive to have assets sufficiently diversified so that adverse or unexpected results from one security class will not have an unduly detrimental impact on the entire portfolio. Plan fiduciaries regularly review actual asset allocation and the pension plans’ investments are periodically rebalanced to the targeted allocation when considered appropriate.

The defined benefit pension plans’ assets consist of return generating investments and risk mitigating investments which are held through direct ownership or through interests in common collective trusts. Return generating investments include primarily equity securities, fixed-income securities and alternative investments (e.g. private equity and hedge funds). Risk mitigating investments include primarily U.S. government and investment grade corporate fixed-income securities. The allocation of assets was as follows at December 31, 2017:

   Percent of Total   Expected Long-Term
Rate of Return
 

  Equity securities

   36  %    9.5  % 

  Fixed-income securities

   37         5.5      

  Alternatives

   16         7.3      

  Other

   11         7.3      

Pension expense increases as the expected rate of return on plan assets decreases. Lowering the expected long-term rate of return on plan assets by 50 basis points (from 7.3% to 6.8%) would increase estimated 2018 pension expense by approximately $20 million. Future pension obligations for United’s plans were discounted using a weighted average rate of 3.65% at December 31, 2017. The Company selected the discount rate for substantially all of its plans by using a hypothetical portfolio of high quality bonds at December 31, 2017 that would provide the necessary cash flows to match the projected benefit payments. The pension liability and future pension expense both increase as the discount rate is reduced. Lowering the discount rate by 50 basis points (from 3.65% to 3.15%) would increase the pension liability at December 31, 2017 by approximately $651 million and increase the estimated 2018 pension expense by approximately $80 million. Future changes in plan asset returns, plan provisions, assumed discount rates, pension funding law and various other factors related to the participants in our pension plans will impact our future pension expense and liabilities. We cannot predict with certainty what these factors will be in the future.

Actuarial gains or losses are triggered by changes in assumptions or experience that differ from the original assumptions. Under the applicable accounting standards for defined benefit pension plans, those gains and losses are not required to be recognized currently as pension benefit expense, but instead may be deferred as part of accumulated other comprehensive income and amortized into expense over the average remaining service life of the covered active employees. All gains and losses in accumulated other comprehensive income are amortized to expense over the remaining years of service of the covered active employees. At December 31, 2017 and 2016, the Company had unrecognized actuarial losses for pension benefit plans of $1.6 billion and $1.5 billion, respectively, recorded in accumulated other comprehensive income.

Other Postretirement Benefit Plan Accounting.United’s postretirement plan provides certain health care benefits, primarily in the United States, to retirees and eligible dependents, as well as certain life insurance benefits to certain retirees reflected as “Other Benefits.” United also has retiree medical programs that permit retirees who meet certain age and service requirements to continue medical coverage between retirement and

Medicare eligibility. Eligible employees are required to pay a portion of the costs of their retiree medical benefits, which in some cases may be offset by accumulated unused sick time at the time of their retirement. Plan benefits are subject toco-payments, deductibles and other limits as described in the plans.

The Company accounts for other postretirement benefits by recognizing the difference between plan assets and obligations, or the plan’s funded status, in its financial statements. Other postretirement benefit expense is recognized on an accrual basis over employees’ approximate service periods and is generally calculated independently of funding decisions or requirements. United has not been required topre-fund its plan obligations, which has resulted in a significant net obligation, as discussed below. The Company’s benefit obligation was $1.7 billion for the other postretirement benefit plans at December 31, 2017 and 2016.

The calculation of other postretirement benefit expense and obligations requires the use of a number of assumptions, including the assumed discount rate for measuring future payment obligations and the health care cost trend rate. The Company determines the appropriate discount rate for each of the plans based on current rates on high quality corporate bonds that would generate the cash flow necessary to pay plan benefits when due. The Company’s weighted average discount rate to determine its benefit obligations as of December 31, 2017 was 3.63%, as compared to 4.07% for December 31, 2016. The health care cost trend rate assumed for 2017 was 6.50%, declining to 5.0% in 2023, as compared to assumed trend rate for 2018 of 6.25%, declining to 5.0% in 2023. A 1% increase in assumed health care trend rates would increase the Company’s total service and interest cost for the year ended December 31, 2017 by $11 million; whereas, a 1% decrease in assumed health care trend rates would decrease the Company’s total service and interest cost for the year ended December 31, 2017 by $8 million. A one percentage point decrease in the weighted average discount rate would increase the Company’s postretirement benefit liability by approximately $185 million and increase the estimated 2017 benefits expense by approximately $8 million.

Actuarial gains or losses are triggered by changes in assumptions or experience that differ from the original assumptions and prior service credits result from a retroactive reduction in benefits due under the plans. Under the applicable accounting standards for postretirement welfare benefit plans, actuarial gains and losses and prior service credits are not required to be recognized currently, but instead may be deferred as part of accumulated other comprehensive income and amortized into expense over the average remaining service life of the covered active employees or the average life expectancy of inactive participants. At December 31, 2017 and 2016, the Company had unrecognized actuarial gains for postretirement welfare benefit plans of $301 million and $384 million, respectively, recorded in accumulated other comprehensive income.

Income Taxes. The Tax Act, among other changes, reduces the federal corporate income tax rate to 21% beginning in 2018, requires companies to pay aone-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred and creates new taxes on certain foreign sourced earnings. As of December 31, 2017, we had not completed our analysis of all aspects of the Tax Act. However, we have made a provisional estimate for its effect on our existing deferred tax balances and theone-time transition tax. We remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. We are still analyzing certain aspects of the Tax Act and refining our calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.

Forward-Looking Information

Certain statements throughout Part II, Item 7, Management’s7. Management's Discussion and Analysis of Financial Condition and Results of Operations, and elsewhere in this report are forward-looking and thus reflect the Company’sCompany's current expectations and beliefs with respect to certain current and future events and anticipated financial and operating performance. Such forward-looking statements are and will be subject to many risks and uncertainties relating to the Company’sCompany's operations and business environment that may cause actual results to differ materially from any future results expressed or implied in such forward-looking statements. Words such as “expects,” “will,” “plans,” “anticipates,” “indicates,” “believes,” “estimates,” “forecast,” “guidance,” “outlook,” “goals”"expects," "will," "plans," "anticipates," "indicates," "believes," "estimates," "forecast," "guidance," "outlook," "goals", "targets" and similar expressions are intended to identify forward-looking statements.

Additionally, forward-looking statements include statements that do not relate solely to historical facts, such as statements which identify uncertainties or trends, discuss the possible future effects of current known trends or uncertainties, or which indicate that the future effects of known trends or uncertainties cannot be predicted, guaranteed or assured. All forward-looking statements in this report are based upon information available to us on the date of this report. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise, except as required by applicable law.

Our actual results could differ materially from these forward-looking statements due to numerous factors including, without limitation, the following: our ability to execute our strategic operating plan, including our growth, revenue-generating and cost-control initiatives; general economic conditions (including interest rates, foreign currency exchange rates, investment or credit market conditions, crude oil prices, costs of aircraft fuel and energy refining capacity in relevant markets); economic and political instability and other risks of doing business globally;globally, including instability and political developments that may impact our operations in certain countries; demand for travel and the impact that global economic and political conditions have on customer travel patterns; competitive pressures on pricing and on demand; demand for transportation in the markets in which we operate; our capacity decisions and the capacity decisions of our competitors; competitive pressures on pricing and on demand; changes in aircraft fuel prices; disruptions in our supply of aircraft fuel; our ability to cost-effectively hedge against increases in the effectsprice of any hostilities, act of war or terrorist attack;aircraft fuel, if we decide to do so; the effects of any technology failures, cybersecurity or cybersecuritysignificant data breaches; disruptions to services provided by third-party service providers; potential reputational or other impact from adverse events involving our aircraft or operations, the aircraft or operations of our regional carriers or our code share partners or the aircraft or operations of another airline; our ability to attract and retain customers; the effects of any terrorist attacks, international hostilities or other security events, or the fear of such events; the mandatory grounding of aircraft in our fleet; disruptions to our regional network; the

impact of regulatory, investigative and legal proceedings and legal compliance risks; disruptions tothe success of our regional network;investments in other airlines, including in other parts of the world; industry consolidation or changes in airline alliances; the ability of other air carriers with whom we have alliances or partnerships to provide the services contemplated by the respective arrangements with such carriers; costs associated with any modification or termination of our aircraft orders; potential reputationaldisruptions in the availability of aircraft, parts or other impact from adverse events in our operations, the operations of our regional carriers or the operations of our code share partners; our ability to attract and retain customers; our ability to execute our operational plans and revenue-generating initiatives, including optimizing our revenue; our ability to control our costs, including realizing benefitssupport from our resource optimization efforts, cost reduction initiatives and fleet replacement programs; the impact of any management changes; our ability to cost-effectively hedge against increases in the price of aircraft fuel if we decide to do so; any potential realized or unrealized gains or losses related to any fuel or currency hedging programs; labor costs;suppliers; our ability to maintain satisfactory labor relations and the results of any collective bargaining agreement process with our union groups; any disruptions to operations due to any potential actions by our labor groups; labor costs; an outbreak of a disease that affects travel demand or travel behavior;behavior, such as the existing threat of COVID-19; the impact of any management changes; extended interruptions or disruptions in service at major airports where we operate; U.S. or foreign governmental legislation, regulation and other actions (including Open Skies agreements, environmental regulations and environmental regulations)the United Kingdom's withdrawal from the European Union); industry consolidation or changes inthe seasonality of the airline alliances;industry; weather conditions; the costs and availability of aviation and other insurance; the costs and availability of financing; our ability to maintain adequate liquidity; our ability to comply with the terms of our various financing arrangements; the costs and availability of financing; our ability to maintain adequate liquidity;realize the costs and availability of aviation and other insurance; weather conditions; our ability to utilize our net operating losses to offset future taxable income; the impact of changes in tax laws; the successfull value of our investments in airlines in other parts of the world;intangible assets and long-lived assets; any impact to our reputation or brand image and other risks and uncertainties set forth under Part I, Item 1A., Risk Factors, of this report, as well as other risks and uncertainties set forth from time to time in the reports we file with the SEC.


ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

Interest Rates. Our net income is affected by fluctuations in interest rates (e.g. interest expense on variable rate debt and interest income earned on short-term investments). The Company’sCompany's policy is to manage interest rate risk through a combination of fixed and variable rate debt. The following table summarizes information related to the Company’sCompany's interest rate market risk at December 31 (in millions):

   2017   2016 

  Variable rate debt

    

  Carrying value of variable rate debt at December 31

   $3,342     $2,582  
  Impact of 100 basis point increase on projected interest expense for the following year   33     25  

  Fixed rate debt

    

  Carrying value of fixed rate debt at December 31

   9,926     8,185  

  Fair value of fixed rate debt at December 31

   10,349       8,469  

  Impact of 100 basis point increase in market rates on fair value

   (403)    (340) 

 2019 2018
Variable rate debt   
Carrying value of variable rate debt at December 31$3,408
 $3,500
Impact of 100 basis point increase on projected interest expense for the following year33
 35
Fixed rate debt   
Carrying value of fixed rate debt at December 3111,144
 9,945
Fair value of fixed rate debt at December 3111,736
 9,901
Impact of 100 basis point increase in market rates on fair value(458) (378)

As announced in July 2017, LIBOR is expected to be phased out by the end of 2021. Uncertainty as to the nature of alternative reference rates and as to potential changes or other reforms to LIBOR may adversely impact our interest rates and related interest expense. As of December 31, 2019, the Company had $3.4 billion in variable rate indebtedness. See Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations—Other Liquidity Matters, of this report, for more information on interest expense.
A change in market interest rates would also impact interest income earned on our cash, cash equivalents and short-term investments. Assuming our cash, cash equivalents and short-term investments remain at their average 20172019 levels, a 100 basis point increase in interest rates would result in a corresponding increase in the Company’sCompany's interest income of approximately $45$47 million during 2018.

2020.

Commodity Price Risk (Aircraft Fuel). The price level of aircraft fuel can significantly affect the Company’sCompany's operations, results of operations, financial position and liquidity.

Our operational and financial results can be significantly impacted by changes in the price and availability of aircraft fuel. To provide adequate supplies of fuel, the Company routinely enters into purchase contracts that are customarily indexed to market prices for aircraft fuel, and the Company generally has some ability to cover short-term fuel supply and infrastructure disruptions at some major demand locations. The price of aircraft fuel has fluctuated substantially in the past several years and in order to lower its exposure to unpredictable increases in the market prices of aircraft fuel, the Company has historically hedged a portion of its planned fuel requirements. The Company’sCompany's current strategy is to not enter into transactions to hedge fuel price volatility, although the Company regularly reviews its policy based on market conditions and other factors. The Company’s 2018Company's 2020 forecasted fuel consumption is presently approximately four4.5 billion gallons, and based on this forecast, a one dollarone-dollar change in the price of a barrel of crude oil would change the Company’sCompany's annual fuel expense by approximately $96$108 million.

Foreign Currency.The Company generates revenues and incurs expenses in numerous foreign currencies. Changes in foreign currency exchange rates impact the Company’sCompany's results of operations through changes in the dollar value of foreign currency-denominated operating revenues and expenses. Some of the Company’sCompany's more significant foreign currency exposures include the Canadian dollar, Chinese renminbi, European euro, British pound and Japanese yen. The Company’sCompany's current strategy is to not enter into transactions to hedge its foreign currency sales, although the Company regularly reviews its policy based on market conditions and other factors.

The result of a uniform 10 percent1% strengthening in the value of the U.S. dollar from December 31, 20172019 levels relative to each of the currencies in which the Company has foreign currency exposure would result in a decrease inpre-tax income of approximately $245$23 million for the year ending December 31, 2018.2020. This sensitivity analysis was prepared based upon projected 20182020 foreign currency-denominated revenues and expenses as of December 31, 2017.

2019.


ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Stockholders and the Board of Directors of

United ContinentalAirlines Holdings, Inc.


Opinion on the Financial Statements


We have audited the accompanying consolidated balance sheets of United ContinentalAirlines Holdings, Inc. (the “Company”"Company") as of December 31, 20172019 and 2016,2018, the related consolidated statements of consolidated operations, comprehensive income (loss), cash flows, and stockholders’stockholders' equity for each of the three years in the period ended December 31, 2017,2019, and the related notes and financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the “consolidated"consolidated financial statements”statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 20172019 and 2016,2018, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017,2019, in conformity with U.S. generally accepted accounting principles.


We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB)("PCAOB"), the Company’sCompany's internal control over financial reporting as of December 31, 2017,2019, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 22, 2018,24, 2020, expressed an unqualified opinion thereon.


Adoption of ASU No. 2016-02

As discussed in Note 1 to the consolidated financial statements, the Company changed its method of accounting for leases in 2019, 2018 and 2017 due to the adoption of ASU No. 2016-02, Leases (Topic 842).

Basis for Opinion


These financial statements are the responsibility of the Company’sCompany's management. Our responsibility is to express an opinion on the Company’sCompany's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.


Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.









Frequent Flyer Deferred Revenue Estimate of Miles not Expected to be Redeemed
Description of the MatterAt December 31, 2019, the Company's frequent flyer deferred revenue liability was $5.3 billion. As described in Note 1 of the consolidated financial statements, members of the Company's MileagePlus program earn miles through the Company's flights, purchases with other airlines or non-airline partners or through co-branded credit card partnerships. Consideration is attributed to the miles earned or sold and deferred until the miles are redeemed and air travel is completed, or non-air awards are shipped. Miles can be redeemed for air travel and non-travel awards.
 Auditing management's breakage estimate (the estimate of miles earned that will not be redeemed) was complex and highly judgmental due to the significant assumptions used in the estimate. Breakage is estimated annually using prior years' data and a regression analysis to estimate future breakage, which can be impacted by changes in customer behavior driven by program changes or redemption opportunities that would not be reflected in historical redemption data.
How We Addressed the Matter in Our AuditWe tested the Company's design and operating effectiveness of internal controls that address the risk of material misstatement relating to the breakage estimate. This included testing controls over management's review of the significant assumptions and other inputs used in the estimate, including redemption patterns of various customer groups.
Our audit procedures included, among others, testing the methodology and assumptions used to develop the breakage estimate, including testing the completeness and accuracy of the underlying data used to develop these assumptions. In addition, we assessed the trending of the breakage rate over time to ensure changes were in line with expectations. We involved a valuation specialist to test management's statistical analysis supporting the breakage assumption.
BRW Term Loan Impairment Analysis
Description of the MatterAt December 31, 2019, the Company had a term loan agreement with, among others, BRW Aviation Holdings LLC and BRW Aviation LLC, dated as of November 29, 2018 (the "BRW Term Loan"), which had a carrying value of $499 million. The BRW Term Loan is collateralized by common shares of Avianca Holdings S.A. ("AVH") and the equity of BRW (such shares and equity, collectively, the "BRW Loan Collateral"). As discussed in Note 8 of the consolidated financial statements, the fair market value of the BRW Loan Collateral is estimated using an income approach and a market approach, with equal weight applied to each approach. Under the income approach, the value was estimated by discounting expected future cash flows to a single present value amount. Under the market approach, the value was estimated by reference to multiples of enterprise value to earnings before interest, taxes, depreciation, amortization and rent ("EBITDAR") for a group of publicly-traded market comparable companies, along with AVH's own EBITDAR levels.
Auditing management's valuation of the BRW Loan Collateral was highly judgmental due to the significant estimation required in determining the fair value. The fair value estimate was sensitive to significant assumptions such as multiples of enterprise value to EBITDAR, revenue and cost growth rates and the discount rate, each of which is affected by expectations about future market or economic conditions. As a result of the subjectivity of the assumptions, adverse changes to management's estimates could reduce the underlying cash flows used to estimate fair value and trigger impairment of the loan.
How We Addressed the Matter in Our AuditWe tested the Company's design and operating effectiveness of internal controls that address the risk of material misstatement relating to the fair market value of the BRW Loan Collateral. This included testing controls over management's review of the significant assumptions used in the income approach and market approach such as multiples of enterprise value to EBITDAR, revenue growth rates, costs per available seat kilometer and the discount rate, which is affected by expectations about future market or economic conditions.
To test the estimated fair value of the BRW Loan Collateral, we performed audit procedures that included, among others, assessing the fair value methodology used by management and evaluating the significant assumptions used in the valuation model. We compared significant assumptions to current industry, market and economic trends, and to AVH's historical results and/or other guideline companies within the same industry. We performed sensitivity analyses of significant assumptions to evaluate the changes in the fair value of the BRW Loan Collateral that would result from changes in assumptions. We also involved a valuation specialist to assist in our evaluation of the Company's valuation methodology and discount rate.

Indefinite-lived Intangible Assets (Route Authorities) Impairment Analysis
Description of the MatterAt December 31, 2019, the Company's route authorities indefinite-lived intangible assets were $1.15 billion. As discussed in Note 1 of the consolidated financial statements, indefinite-lived assets are reviewed for impairment on an annual basis as of October 1, or on an interim basis whenever a triggering event occurs.
Auditing management's annual route authorities indefinite-lived intangibles impairment test was complex and highly judgmental due to the significant estimation required in determining the fair value. The fair value estimate was sensitive to significant assumptions such as revenue growth rate, cost per available seat mile and the discount rate, each of which is affected by expectations about future market or economic conditions. As a result of the subjectivity of the assumptions, adverse changes to management's estimates could reduce the underlying cash flows used to estimate fair value and trigger impairment charges.
How We Addressed the Matter in Our AuditWe tested the Company's design and operating effectiveness of internal controls that address the risk of material misstatement relating to the estimate of fair value of route authorities used in the annual impairment test. This included testing controls over management's review of the significant assumptions used in the discounted cash flow methodology, including revenue growth rate, cost per available seat mile and the discount rate.
To test the estimated fair value of the Company's route authorities indefinite-lived intangibles, we performed audit procedures that included, among others, assessing the fair value methodology used by management and evaluating the significant assumptions used in the valuation model. We compared significant assumptions to current industry, market and economic trends, and to the Company's historical results. We assessed the historical accuracy of management's estimates and performed sensitivity analyses of significant assumptions to evaluate the changes in the fair value of the intangible assets that would result from changes in assumptions. We also involved a valuation specialist to assist in our evaluation of the Company's valuation methodology and discount rate.


/s/ Ernst & Young LLP


We have served as the Company’sCompany's auditor since 2009.



Chicago, Illinois

February 22, 2018

24, 2020








REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholder and the Board of Directors of

United Airlines, Inc.


Opinion on the Financial Statements


We have audited the accompanying consolidated balance sheets of United Airlines, Inc. (the “Company”"Company") as of December 31, 20172019 and 2016,2018, and the related consolidated statements of consolidated operations, comprehensive income (loss), cash flows, and stockholder’sstockholder's equity, for each of the three years in the period ended December 31, 2017,2019, and the related notes and financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the “consolidated"consolidated financial statements”statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 20172019 and 2016,2018, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017,2019, in conformity with U.S. generally accepted accounting principles.


Adoption of ASU No. 2016-02

As discussed in Note 1 to the consolidated financial statements, the Company changed its method of accounting for leases in 2019, 2018 and 2017 due to the adoption of ASU 2016-02, Leases (Topic 842).

Basis for Opinion


These financial statements are the responsibility of the Company’sCompany's management. Our responsibility is to express an opinion on the Company’sCompany's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB)("PCAOB") and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of the Company’sCompany's internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’sCompany's internal control over financial reporting. Accordingly, we express no such opinion.


Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.



/s/ Ernst & Young LLP


We have served as the Company’sCompany's auditor since 2009.



Chicago, Illinois

February 22, 2018

24, 2020





UNITED CONTINENTALAIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED OPERATIONS

(In millions, except per share amounts)

   Year Ended December 31, 
           2017                   2016                   2015         

Operating revenue:

      

Passenger—Mainline

   $26,552     $25,414     $26,333  

Passenger—Regional

   5,852     6,043     6,452  
  

 

 

   

 

 

   

 

 

 

Total passenger revenue

   32,404     31,457     32,785  

Cargo

   1,035     876     937  

Other operating revenue

   4,297     4,223     4,142  
  

 

 

   

 

 

   

 

 

 

Total operating revenue

   37,736     36,556     37,864  
  

 

 

   

 

 

   

 

 

 
Operating expense:      

Salaries and related costs

   11,045     10,275     9,713  

Aircraft fuel

   6,913     5,813     7,522  

Landing fees and other rent

   2,240     2,165     2,203  

Regional capacity purchase

   2,232     2,197     2,290  

Depreciation and amortization

   2,149     1,977     1,819  

Aircraft maintenance materials and outside repairs

   1,856     1,749     1,651  

Distribution expenses

   1,349     1,303     1,342  

Aircraft rent

   621     680     754  

Special charges (Note 14)

   176     638     326  

Other operating expenses

   5,657     5,421     5,078  
  

 

 

   

 

 

   

 

 

 

Total operating expenses

   34,238     32,218     32,698  
  

 

 

   

 

 

   

 

 

 
Operating income   3,498     4,338     5,166  
      

Nonoperating income (expense):

      

Interest expense

   (643)    (614)    (669) 

Interest capitalized

   84     72     49  

Interest income

   57     42     25  

Miscellaneous, net (Note 14)

       (19)    (352) 
  

 

 

   

 

 

   

 

 

 

Total nonoperating expense, net

   (499)    (519)    (947) 
  

 

 

   

 

 

   

 

 

 
Income before income taxes   2,999     3,819     4,219  

Income tax expense (benefit) (Note 14)

   868     1,556     (3,121) 
  

 

 

   

 

 

   

 

 

 

Net income

   $2,131     $2,263     $7,340  
  

 

 

   

 

 

   

 

 

 

Earnings per share, basic

   $7.04     $6.86     $19.52  
  

 

 

   

 

 

   

 

 

 

Earnings per share, diluted

   $7.02     $6.85     $19.47  
  

 

 

   

 

 

   

 

 

 

 Year Ended December 31,
 2019 2018 (a) 2017 (a)
Operating revenue:     
Passenger revenue$39,625
 $37,706
 $34,460
Cargo1,179
 1,237
 1,114
Other operating revenue2,455
 2,360
 2,210
Total operating revenue43,259
 41,303
 37,784
Operating expense:     
Salaries and related costs12,071
 11,458
 10,941
Aircraft fuel8,953
 9,307
 6,913
Regional capacity purchase2,849
 2,649
 2,268
Landing fees and other rent2,543
 2,449
 2,310
Depreciation and amortization2,288
 2,165
 2,096
Aircraft maintenance materials and outside repairs1,794
 1,767
 1,856
Distribution expenses1,651
 1,558
 1,435
Aircraft rent288
 433
 621
Special charges246
 487
 176
Other operating expenses6,275
 5,801
 5,550
Total operating expense38,958
 38,074
 34,166
Operating income4,301
 3,229
 3,618
      
Nonoperating income (expense):     
Interest expense(731) (670) (626)
Interest capitalized85
 65
 74
Interest income133
 101
 57
Unrealized gains (losses) on investments, net153
 (5) 
Miscellaneous, net(27) (72) (100)
Total nonoperating expense, net(387) (581) (595)
Income before income taxes3,914
 2,648
 3,023
Income tax expense905
 526
 880
Net income$3,009
 $2,122
 $2,143
Earnings per share, basic$11.63
 $7.70
 $7.08
Earnings per share, diluted$11.58
 $7.67
 $7.06

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED CONTINENTALAIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS)

(In millions)

   Year Ended December 31, 
           2017                   2016                   2015         

Net income

   $2,131     $2,263     $7,340  
      

Other comprehensive income (loss), net change related to:

      

Employee benefit plans, net of taxes

   (195)    (313)    70  

Fuel derivative financial instruments, net of taxes

       316     182  

Investments and other, net of taxes

   (6)    (1)    (4) 
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income (loss), net

   (200)        248  
  

 

 

   

 

 

   

 

 

 

Total comprehensive income, net

   $1,931     $2,265     $7,588  
  

 

 

   

 

 

   

 

 

 



 Year Ended December 31,
 2019 2018 (a) 2017 (a)
      
Net income$3,009
 $2,122
 $2,143
      
Other comprehensive income (loss), net of tax:     
Employee benefit plans80
 342
 (195)
Investments and other5
 (4) (5)
Total other comprehensive income (loss), net of tax85
 338
 (200)
Total comprehensive income, net$3,094
 $2,460
 $1,943

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.
The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED AIRLINES HOLDINGS, INC.
CONSOLIDATED BALANCE SHEETS
(In millions, except shares)
 At December 31,
ASSETS2019 2018 (a)
Current assets:   
Cash and cash equivalents$2,762
 $1,694
Short-term investments2,182
 2,256
Receivables, less allowance for doubtful accounts (2019—$9; 2018—$8)1,364
 1,426
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019—$425; 2018—$412)1,072
 985
Prepaid expenses and other814
 733
Total current assets8,194
 7,094
Operating property and equipment:   
Flight equipment35,421
 32,599
Other property and equipment7,926
 6,889
Purchase deposits for flight equipment1,360
 1,177
Total operating property and equipment44,707
 40,665
Less—Accumulated depreciation and amortization(14,537) (13,266)
Total operating property and equipment, net30,170
 27,399
    
Operating lease right-of-use assets4,758
 5,262
    
Other assets:   
Goodwill4,523
 4,523
Intangibles, less accumulated amortization (2019—$1,440; 2018—$1,380)3,009
 3,159
Restricted cash106
 105
Notes receivable, net671
 516
Investments in affiliates and other, net1,180
 966
Total other assets9,489
 9,269
Total assets$52,611
 $49,024

(continued on next page)


UNITED CONTINENTALAIRLINES HOLDINGS, INC.

CONSOLIDATED BALANCE SHEETS

(In millions, except shares)

   At December 31, 
  

 

 

   

 

 

 
ASSETS          2017                   2016         

Current assets:

    

Cash and cash equivalents

   $1,482     $2,179  

Short-term investments

   2,316     2,249  

Receivables, less allowance for doubtful accounts (2017—$7; 2016—$10)

   1,340     1,176  

Aircraft fuel, spare parts and supplies, less obsolescence allowance
(2017—$354; 2016—$295)

   924     873  

Prepaid expenses and other

   1,051     832  
  

 

 

   

 

 

 

Total current assets

   7,113     7,309  
  

 

 

   

 

 

 

Operating property and equipment:

    

Owned—

    

Flight equipment

   28,692     25,873  

Other property and equipment

   6,946     5,652  
  

 

 

   

 

 

 

Total owned property and equipment

   35,638     31,525  

Less—Accumulated depreciation and amortization

   (11,159)    (9,975) 
  

 

 

   

 

 

 

Total owned property and equipment, net

   24,479     21,550  
  

 

 

   

 

 

 
    

Purchase deposits for flight equipment

   1,344     1,059  
    

Capital leases—

    

Flight equipment

   1,151     1,319  

Other property and equipment

   11     331  
  

 

 

   

 

 

 

Total capital leases

   1,162     1,650  

Less—Accumulated amortization

   (777)    (941) 
  

 

 

   

 

 

 

Total capital leases, net

   385     709  
  

 

 

   

 

 

 

Total operating property and equipment, net

   26,208     23,318  
  

 

 

   

 

 

 

Other assets:

    

Goodwill

   4,523     4,523  

Intangibles, less accumulated amortization (2017—$1,313; 2016—$1,234)

   3,539     3,632  

Deferred income taxes

   —     655  

Restricted cash

   91     124  

Investments in affiliates and other, net

   852     579  
  

 

 

   

 

 

 

Total other assets

   9,005     9,513  
  

 

 

   

 

 

 

Total assets

   $42,326     $40,140  
  

 

 

   

 

 

 

UNITED CONTINENTAL HOLDINGS, INC.

CONSOLIDATED BALANCE SHEETS

(In millions, except shares)

   At December 31, 
  

 

 

  

 

 

 
LIABILITIES AND STOCKHOLDERS’ EQUITY  2017  2016 

Current liabilities:

   

Advance ticket sales

   $3,876   $3,730  

Frequent flyer deferred revenue

   2,176    2,135  

Accounts payable

   2,196    2,139  

Accrued salaries and benefits

   2,166    2,307  

Current maturities of long-term debt

   1,565    849  

Current maturities of capital leases

   128    116  

Other

   569    1,010  
  

 

 

  

 

 

 

Total current liabilities

   12,676    12,286  
  

 

 

  

 

 

 
   

Long-term debt

   11,703    9,918  

Long-term obligations under capital leases

   996    822  
   

Other liabilities and deferred credits:

   

Frequent flyer deferred revenue

   2,565    2,748  

Postretirement benefit liability

   1,602    1,581  

Pension liability

   1,921    1,892  

Advanced purchase of miles

   —    430  

Deferred income taxes

   225    —  

Lease fair value adjustment, net

   198    277  

Other

   1,634    1,527  
  

 

 

  

 

 

 

Total other liabilities and deferred credits

   8,145    8,455  
  

 

 

  

 

 

 

Commitments and contingencies

   

Stockholders’ equity:

   

Preferred stock

   —    —  

Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 286,973,195 and 314,612,744 shares at December 31, 2017 and 2016, respectively

       

Additional capital invested

   6,098    6,569  

Retained earnings

   4,621    3,427  

Stock held in treasury, at cost

   (769)   (511) 

Accumulated other comprehensive loss

   (1,147)   (829) 
  

 

 

  

 

 

 

Total stockholders’ equity

   8,806    8,659  
  

 

 

  

 

 

 

Total liabilities and stockholders’ equity

   $42,326    $40,140  
  

 

 

  

 

 

 

 At December 31,
LIABILITIES AND STOCKHOLDERS' EQUITY2019 2018 (a)
Current liabilities:   
Advance ticket sales$4,819
 $4,381
Accounts payable2,703
 2,363
Frequent flyer deferred revenue2,440
 2,286
Accrued salaries and benefits2,271
 2,184
Current maturities of long-term debt1,407
 1,230
Current maturities of finance leases46
 123
Current maturities of operating leases686
 719
Other566
 553
Total current liabilities14,938
 13,839
    
Long-term debt13,145
 12,215
Long-term obligations under finance leases220
 224
Long-term obligations under operating leases4,946
 5,276
    
Other liabilities and deferred credits:   
Frequent flyer deferred revenue2,836
 2,719
Postretirement benefit liability789
 1,295
Pension liability1,446
 1,576
Deferred income taxes1,736
 828
Other1,024
 1,010
Total other liabilities and deferred credits7,831
 7,428
Commitments and contingencies

 

Stockholders' equity:   
Preferred stock
 
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 251,216,381 and 269,914,769 shares at December 31, 2019 and 2018, respectively3
 3
Additional capital invested6,129
 6,120
Stock held in treasury, at cost(3,599) (1,993)
Retained earnings9,716
 6,715
Accumulated other comprehensive loss(718) (803)
Total stockholders' equity11,531
 10,042
Total liabilities and stockholders' equity$52,611
 $49,024

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED CONTINENTALAIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED CASH FLOWS

(In millions)

   Year Ended December 31, 
           2017                   2016                   2015         

 Operating Activities:

      

Net income

   $2,131     $2,263     $7,340  

Adjustments to reconcile net income to net cash provided by operating activities -

      

Deferred income taxes

   945     1,648     (3,177) 

Depreciation and amortization

   2,149     1,977     1,819  

Special charges,non-cash portion

   35     391     247  

Other operating activities

   142     109     115  

Changes in operating assets and liabilities -

      

Decrease in fuel hedge collateral

   —     26     551  

Decrease in fuel derivatives

   —     (20)    (305) 

Decrease in other liabilities

   (478)    (446)    (180) 

Decrease in advanced purchase of miles

   (865)    (249)    (224) 

Increase (decrease) in frequent flyer deferred revenue

   (142)    (60)     

Increase in other assets

   (533)    (298)    (160) 

Increase (decrease) in accounts payable

   66     239     (77) 

Increase (decrease) in advance ticket sales

   146     (22)    52  

Increase in receivables

   (183)    (16)    (15) 
  

 

 

   

 

 

   

 

 

 

 Net cash provided by operating activities

   3,413     5,542     5,992  
  

 

 

   

 

 

   

 

 

 

 Investing Activities:

      

Capital expenditures

   (3,998)    (3,223)    (2,747) 

Purchases of short-term and other investments

   (3,241)    (2,768)    (2,517) 

Proceeds from sale of short-term and other investments

   3,177     2,712     2,707  

Proceeds from sale of property and equipment

   12     28     86  

Other, net

   120     13     (136) 
  

 

 

   

 

 

   

 

 

 

 Net cash used in investing activities

   (3,930)    (3,238)    (2,607) 
  

 

 

   

 

 

   

 

 

 

 Financing Activities:

      

Proceeds from issuance of long-term debt and airport construction financing

   2,765     808     1,073  

Repurchases of common stock

   (1,844)    (2,614)    (1,233) 

Payments of long-term debt

   (901)    (1,215)    (2,178) 

Principal payments under capital leases

   (124)    (136)    (123) 

Capitalized financing costs

   (80)    (64)    (37) 

Proceeds from the exercise of stock options

           16  

Other, net

   (13)        (13) 
  

 

 

   

 

 

   

 

 

 

 Net cash used in financing activities

   (195)    (3,213)    (2,495) 
  

 

 

   

 

 

   

 

 

 

 Net increase (decrease) in cash, cash equivalents and restricted cash

   (712)    (909)    890  

 Cash, cash equivalents and restricted cash at beginning of year

   2,303     3,212     2,322  
  

 

 

   

 

 

   

 

 

 

 Cash, cash equivalents and restricted cash at end of year

   $1,591     $2,303     $3,212  
  

 

 

   

 

 

   

 

 

 

Investing and Financing Activities Not Affecting Cash:

      

Property and equipment acquired through the issuance of debt and capital leases

   $935     $386     $866  

Equity interest in Republic Airways Holdings, Inc. received in consideration for
bankruptcy claims

   92     —     —  

Airport construction financing

   42     91     17  

Operating lease conversions to capital lease

   —     12     285  

Exchange of convertible notes for common stock

   —     —     202  

Cash Paid During the Period for:

      

Interest

   $571     $584     $660  

Income taxes

   20     14     15  

 Year Ended December 31,
 2019 2018 (a) 2017 (a)
Operating Activities:     
Net income$3,009
 $2,122
 $2,143
Adjustments to reconcile net income to net cash provided by operating activities -     
Deferred income taxes882
 512
 957
Depreciation and amortization2,288
 2,165
 2,096
Special charges, non-cash portion175
 416
 35
Unrealized (gains) losses on investments(153) 5
 
Other operating activities185
 161
 142
Changes in operating assets and liabilities -     
(Increase) decrease in receivables44
 17
 (73)
(Increase) decrease in other assets(252) 265
 (432)
Increase in advance ticket sales438
 441
 145
Increase (decrease) in frequent flyer deferred revenue271
 222
 (107)
Increase in accounts payable324
 130
 66
Decrease in advanced purchase of miles
 
 (942)
Decrease in other liabilities(302) (292) (556)
Net cash provided by operating activities6,909
 6,164
 3,474
Investing Activities:     
Capital expenditures(4,528) (4,070) (3,870)
Purchases of short-term and other investments(2,897) (2,552) (3,241)
Proceeds from sale of short-term and other investments2,996
 2,616
 3,177
Loans made to others(174) (466) (30)
Investment in affiliates(36) (139) (2)
Other, net79
 156
 163
Net cash used in investing activities(4,560) (4,455) (3,803)
Financing Activities:     
Repurchases of common stock(1,645) (1,235) (1,844)
Proceeds from issuance of long-term debt1,847
 1,594
 2,537
Payments of long-term debt(1,240) (1,727) (901)
Principal payments under finance leases(151) (79) (84)
Capitalized financing costs(61) (37) (80)
Other, net(30) (17) (11)
Net cash used in financing activities(1,280) (1,501) (383)
Net increase (decrease) in cash, cash equivalents and restricted cash1,069
 208
 (712)
Cash, cash equivalents and restricted cash at beginning of year1,799
 1,591
 2,303
Cash, cash equivalents and restricted cash at end of year$2,868
 $1,799
 $1,591
      
Investing and Financing Activities Not Affecting Cash:     
Property and equipment acquired through the issuance of debt$493
 $143
 $897
Right-of-use assets acquired through operating leases498
 663
 319
Property and equipment acquired through finance lease22
 17
 16
Lease modifications and lease conversions(2) 52
 
Debt associated with termination of a maintenance service agreement
 163
 
Investment in Republic Airways Holdings Inc. received from bankruptcy claims
 
 92
      
Cash Paid During the Period for:     
Interest$648
 $651
 $571
Income taxes29
 19
 20

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.


UNITED CONTINENTALAIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED STOCKHOLDERS’STOCKHOLDERS' EQUITY

(In millions)

  Common
Stock
  Additional
Capital
 Invested 
  Treasury
Stock
  Retained
Earnings
(Accumulated
Deficit)
  Accumulated
Other
Comprehensive
Income (Loss)
      Total     
  Shares  Amount      

 Balance at December 31, 2014

  375    $   $7,721    $(367)   $(3,883)  $(1,079)   $2,396  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  —    —    —    —    7,340    —    7,340  

Other comprehensive income

  —    —    —    —    —    248    248  

Convertible debt redemptions

  11    —    202    —    —    —    202  

Share-based compensation

  —    —       —    —    —     

Proceeds from exercise of stock options

  —    —    16    —    —    —    16  

Repurchases of common stock

  (21)   —    —    (1,232)   —    —    (1,232) 

Other

  —    —    —    (11)   —    —    (11) 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

 Balance at December 31, 2015

  365       7,946    (1,610)   3,457    (831)   8,966  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  —    —    —    —    2,263    —    2,263  

Other comprehensive income

  —    —    —    —    —        

Share-based compensation

  —    —    32    —    —    —    32  

Proceeds from exercise of stock options

  —    —       —    —    —     

Repurchases of common stock

  (50)   —    —    (2,607)   —    —    (2,607) 

Treasury stock retired

  —    (1)   (1,415)   3,709    (2,293)   —    —  

Other

  —    —    —    (3)   —    —    (3) 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

 Balance at December 31, 2016

  315       6,569    (511)   3,427    (829)   8,659  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  —    —    —    —    2,131    —    2,131  

Other comprehensive loss

  —    —    —    —    —    (200)   (200) 

Share-based compensation

  —    —    56    —    —    —    56  

Proceeds from exercise of stock options

  —    —       —    —    —     

Repurchases of common stock

  (28)   —    —    (1,844)   —    —    (1,844) 

Treasury stock retired

  —    —    (508)   1,576    (1,068)   —    —  

Net treasury stock issued for share-based awards

  —    —    (21)   10    (1)   —    (12) 

Excess tax benefits from share-based awards

  —    —    —    —    14    —    14  

Reclassification of stranded tax effects (Note 1)

  —    —    —    —    118    (118)   —  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

 Balance at December 31, 2017

  287    $   $6,098    $(769)   $4,621    $(1,147)   $8,806  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

 
Common
Stock
 
Additional
Capital Invested
 Treasury Stock Retained Earnings (Accumulated Deficit) 
Accumulated
Other Comprehensive Income (Loss)
 Total
 Shares Amount     
Balance at December 31, 2016314.6
 $3
 $6,569
 $(511) $3,342
 $(829) $8,574
Net income (a)
 
 
 
 2,143
 
 2,143
Other comprehensive loss
 
 
 
 
 (200) (200)
Stock-settled share-based compensation
 
 56
 
 
 
 56
Proceeds from exercise of stock options
 
 2
 
 
 
 2
Repurchases of common stock(27.8) 
 
 (1,844) 
 
 (1,844)
Treasury stock retired
 
 (508) 1,576
 (1,068) 
 
Net treasury stock issued for share-based awards0.2
 
 (21) 10
 (1) 
 (12)
Excess tax benefits from share-based awards
 
 
 
 14
 
 14
Reclassification of stranded tax effects
 
 
 
 118
 (118) 
Other (a)
 
 
 
 55
 
 55
Balance at December 31, 2017287.0
 3
 6,098
 (769) 4,603
 (1,147) 8,788
      Net income (a)
 
 
 
 2,122
 
 2,122
Other comprehensive income
 
 
 
 
 338
 338
Stock-settled share-based compensation
 
 60
 
 
 
 60
Repurchases of common stock(17.5) 
 
 (1,250) 
 
 (1,250)
Net treasury stock issued for share-based awards0.4
 
 (38) 26
 (4) 
 (16)
Adoption of accounting standard related to equity investments
 
 
 
 (6) 6
 
Balance at December 31, 2018269.9
 3
 6,120
 (1,993) 6,715
 (803) 10,042
      Net income
 
 
 
 3,009
 
 3,009
Other comprehensive income
 
 
 
 
 85
 85
Stock-settled share-based compensation
 
 66
 
 
 
 66
Repurchases of common stock(19.2) 
 
 (1,641) 
 
 (1,641)
Net treasury stock issued for share-based awards0.5
 
 (57) 35
 (8) 
 (30)
Balance at December 31, 2019251.2
 $3
 $6,129
 $(3,599) $9,716
 $(718) $11,531

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8
The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED OPERATIONS

(In millions)

   Year Ended December 31, 
           2017                   2016                   2015         

Operating revenue:

      

Passenger—Mainline

   $26,552     $25,414     $26,333  

Passenger—Regional

   5,852     6,043     6,452  
  

 

 

   

 

 

   

 

 

 

Total passenger revenue

   32,404     31,457     32,785  

Cargo

   1,035     876     937  

Other operating revenue

   4,297     4,223     4,142  
  

 

 

   

 

 

   

 

 

 

Total operating revenue

   37,736     36,556     37,864  
  

 

 

   

 

 

   

 

 

 
Operating expense:      

Salaries and related costs

   11,045     10,275     9,713  

Aircraft fuel

   6,913     5,813     7,522  

Landing fees and other rent

   2,240     2,165     2,203  

Regional capacity purchase

   2,232     2,197     2,290  

Depreciation and amortization

   2,149     1,977     1,819  

Aircraft maintenance materials and outside repairs

   1,856     1,749     1,651  

Distribution expenses

   1,349     1,303     1,342  

Aircraft rent

   621     680     754  

Special charges (Note 14)

   176     638     326  

Other operating expenses

   5,655     5,418     5,076  
  

 

 

   

 

 

   

 

 

 

Total operating expenses

   34,236     32,215     32,696  
  

 

 

   

 

 

   

 

 

 
Operating income   3,500     4,341     5,168  
  

 

 

   

 

 

   

 

 

 
      
Nonoperating income (expense):      

Interest expense

   (643)    (614)    (670) 

Interest capitalized

   84     72     49  

Interest income

   57     42     25  

Miscellaneous, net (Note 14)

       (19)    (351) 
  

 

 

   

 

 

   

 

 

 

Total nonoperating expense, net

   (499)    (519)    (947) 
  

 

 

   

 

 

   

 

 

 
Income before income taxes   3,001     3,822     4,221  

Income tax expense (benefit) (Note 14)

   852     1,558     (3,080)  
  

 

 

   

 

 

   

 

 

 

Net income

   $2,149     $2,264     $7,301  
  

 

 

   

 

 

   

 

 

 

 Year Ended December 31,
 2019 2018 (a) 2017 (a)
Operating revenue:     
Passenger revenue$39,625
 $37,706
 $34,460
Cargo1,179
 1,237
 1,114
Other operating revenue2,455
 2,360
 2,210
Total operating revenue43,259
 41,303
 37,784
Operating expense:     
Salaries and related costs12,071
 11,458
 10,941
Aircraft fuel8,953
 9,307
 6,913
Regional capacity purchase2,849
 2,649
 2,268
Landing fees and other rent2,543
 2,449
 2,310
Depreciation and amortization2,288
 2,165
 2,096
Aircraft maintenance materials and outside repairs1,794
 1,767
 1,856
Distribution expenses1,651
 1,558
 1,435
Aircraft rent288
 433
 621
Special charges246
 487
 176
Other operating expenses6,273
 5,799
 5,548
Total operating expense38,956
 38,072
 34,164
Operating income4,303
 3,231
 3,620
      
Nonoperating income (expense):     
Interest expense(731) (670) (626)
Interest capitalized85
 65
 74
Interest income133
 101
 57
Unrealized gains (losses) on investments, net153
 (5) 
Miscellaneous, net(27) (72) (100)
Total nonoperating expense, net(387) (581) (595)
Income before income taxes3,916
 2,650
 3,025
Income tax expense905
 527
 864
Net income$3,011
 $2,123
 $2,161

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS)

(In millions)

   Year Ended December 31, 
           2017                   2016                   2015         

Net income

   $2,149     $2,264     $7,301  
      

Other comprehensive income (loss), net change related to:

      

Employee benefit plans, net of taxes

   (195)    (313)    70  

Fuel derivative financial instruments, net of taxes

       316     182  

Investments and other, net of taxes

   (6)    (1)    (4) 
  

 

 

   

 

 

   

 

 

 

Total other comprehensive income (loss), net

   (200)        248  
  

 

 

   

 

 

   

 

 

 

Total comprehensive income, net

   $1,949     $2,266     $7,549  
  

 

 

   

 

 

   

 

 

 

 Year Ended December 31,
 2019 2018 (a) 2017 (a)
      
Net income$3,011
 $2,123
 $2,161
      
Other comprehensive income (loss), net of tax:     
Employee benefit plans80
 342
 (195)
Investments and other5
 (4) (5)
Total other comprehensive income (loss), net of tax85
 338
 (200)
Total comprehensive income, net$3,096
 $2,461
 $1,961

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED AIRLINES, INC.

CONSOLIDATED BALANCE SHEETS

(In millions, except shares)

   At December 31, 
  

 

 

  

 

 

 
ASSETS          2017                  2016         

Current assets:

   

Cash and cash equivalents

   $1,476    $2,173  

Short-term investments

   2,316    2,249  

Receivables, less allowance for doubtful accounts (2017—$7; 2016—$10)

   1,340    1,176  

Aircraft fuel, spare parts and supplies, less obsolescence allowance (2017—$354; 2016—$295)

   924    873  

Prepaid expenses and other

   1,051    832  
  

 

 

  

 

 

 

Total current assets

   7,107    7,303  
  

 

 

  

 

 

 

Operating property and equipment:

   

Owned—

   

Flight equipment

   28,692    25,873  

Other property and equipment

   6,946    5,652  
  

 

 

  

 

 

 

Total owned property and equipment

   35,638    31,525  

Less—Accumulated depreciation and amortization

   (11,159)   (9,975) 
  

 

 

  

 

 

 

Total owned property and equipment, net

   24,479    21,550  
  

 

 

  

 

 

 
   

Purchase deposits for flight equipment

   1,344    1,059  
   

Capital leases—

   

Flight equipment

   1,151    1,319  

Other property and equipment

   11    331  
  

 

 

  

 

 

 

Total capital leases

   1,162    1,650  

Less—Accumulated amortization

   (777)   (941) 
  

 

 

  

 

 

 

Total capital leases, net

   385    709  
  

 

 

  

 

 

 

Total operating property and equipment, net

   26,208    23,318  
  

 

 

  

 

 

 

Other assets:

   

Goodwill

   4,523    4,523  

Intangibles, less accumulated amortization (2017—$1,313; 2016—$1,234)

   3,539    3,632  

Deferred income taxes

   —    612  

Restricted cash

   91    124  

Investments in affiliates and other, net

   852    579  
  

 

 

  

 

 

 

Total other assets

   9,005    9,470  
  

 

 

  

 

 

 

Total assets

   $42,320    $40,091  
  

 

 

  

 

 

 

57

 At December 31,
ASSETS2019 2018 (a)
Current assets:   
Cash and cash equivalents$2,756
 $1,688
Short-term investments2,182
 2,256
Receivables, less allowance for doubtful accounts (2019—$9; 2018—$8)1,364
 1,426
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019—$425; 2018—$412)1,072
 985
Prepaid expenses and other814
 733
Total current assets8,188
 7,088
Operating property and equipment:   
Flight equipment35,421
 32,599
Other property and equipment7,926
 6,889
Purchase deposits for flight equipment1,360
 1,177
Total operating property and equipment44,707
 40,665
Less—Accumulated depreciation and amortization(14,537) (13,266)
Total operating property and equipment, net30,170
 27,399
    
Operating lease right-of-use assets4,758
 5,262
    
Other assets:   
Goodwill4,523
 4,523
Intangibles, less accumulated amortization (2019—$1,440; 2018—$1,380)3,009
 3,159
Restricted cash106
 105
Notes receivable, net671
 516
Investments in affiliates and other, net1,180
 966
Total other assets9,489
 9,269
Total assets$52,605
 $49,018

(continued on next page)




UNITED AIRLINES, INC.

CONSOLIDATED BALANCE SHEETS

(In millions, except shares)

   At December 31, 
LIABILITIES AND STOCKHOLDER’S EQUITY  2017   2016 

Current liabilities:

    

Advance ticket sales

   $3,876     $3,730  

Frequent flyer deferred revenue

   2,176     2,135  

Accounts payable

   2,196     2,144  

Accrued salaries and benefits

   2,166     2,307  

Current maturities of long-term debt

   1,565     849  

Current maturities of capital leases

   128     116  

Other

   574     1,009  
  

 

 

   

 

 

 

Total current liabilities

   12,681     12,290  
  

 

 

   

 

 

 
    

Long-term debt

   11,703     9,918  

Long-term obligations under capital leases

   996     822  
    
Other liabilities and deferred credits:    

Frequent flyer deferred revenue

   2,565     2,748  

Postretirement benefit liability

   1,602     1,581  

Pension liability

   1,921     1,892  

Advanced purchase of miles

   —     430 

Deferred income taxes

   252     —  

Lease fair value adjustment, net

   198     277  

Other

   1,634     1,527  
  

 

 

   

 

 

 

Total other liabilities and deferred credits

   8,172     8,455  
  

 

 

   

 

 

 

Commitments and contingencies

    

Stockholder’s equity:

    

Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at December 31, 2017 and 2016

   —     —  

Additional capital invested

   1,787     3,573  

Retained earnings

   8,218     5,937  

Accumulated other comprehensive loss

   (1,147)    (829) 

Receivable from related parties

   (90)    (75) 
  

 

 

   

 

 

 

Total stockholder’s equity

   8,768     8,606  
  

 

 

   

 

 

 

Total liabilities and stockholder’s equity

   $42,320     $40,091  
  

 

 

   

 

 

 

 At December 31,
LIABILITIES AND STOCKHOLDER'S EQUITY2019 2018 (a)
Current liabilities:   
Advance ticket sales$4,819
 $4,381
Accounts payable2,703
 2,363
Frequent flyer deferred revenue2,440
 2,286
Accrued salaries and benefits2,271
 2,184
Current maturities of long-term debt1,407
 1,230
Current maturities of finance leases46
 123
Current maturities of operating leases686
 719
Other571
 558
Total current liabilities14,943
 13,844
    
Long-term debt13,145
 12,215
Long-term obligations under finance leases220
 224
Long-term obligations under operating leases4,946
 5,276
    
Other liabilities and deferred credits:   
Frequent flyer deferred revenue2,836
 2,719
Postretirement benefit liability789
 1,295
Pension liability1,446
 1,576
Deferred income taxes1,763
 855
Other1,025
 1,010
Total other liabilities and deferred credits7,859
 7,455
Commitments and contingencies

 

Stockholder's equity:   
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at December 31, 2019 and 2018
 
Additional capital invested
 598
Retained earnings12,353
 10,319
Accumulated other comprehensive loss(718) (803)
Receivable from related parties(143) (110)
Total stockholder's equity11,492
 10,004
Total liabilities and stockholder's equity$52,605
 $49,018

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.



UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED CASH FLOWS

(In millions)

  Year Ended December 31, 
          2017                  2016                  2015         

Operating Activities:

   

Net income

  $2,149    $2,264    $7,301  

Adjustments to reconcile net income to net cash provided by operating activities -

   

Deferred income taxes

  929    1,650    (3,136) 

Depreciation and amortization

  2,149    1,977    1,819  

Special charges,non-cash portion

  35    391    247  

Other operating activities

  142    108    115  

Changes in operating assets and liabilities -

   

Decrease in fuel hedge collateral

  —    26    551  

Decrease in fuel derivatives

  —    (20)   (305) 

Decrease in other liabilities

  (479)   (444)   (181) 

Decrease in advanced purchase of miles

  (865)   (249)   (224) 

Increase (decrease) in frequent flyer deferred revenue

  (142)   (60)    

Increase in other assets

  (533)   (251)   (160) 

Increase (decrease) in accounts payable

  66    239    (77) 

Increase (decrease) in advance ticket sales

  146    (22)   52  

Increase in receivables

  (183)   (16)   (15) 

Increase in intercompany receivables

  (15)   (58)   (12) 
 

 

 

  

 

 

  

 

 

 

Net cash provided by operating activities

  3,399    5,535    5,981  
 

 

 

  

 

 

  

 

 

 

Investing Activities:

   

Capital expenditures

  (3,998)   (3,223)   (2,747) 

Purchases of short-term and other investments

  (3,241)   (2,768)   (2,517) 

Proceeds from sale of short-term and other investments

  3,177    2,712    2,707  

Proceeds from sale of property and equipment

  12    28    86  

Other, net

  120    13    (136) 
 

 

 

  

 

 

  

 

 

 

Net cash used in investing activities

  (3,930)   (3,238)   (2,607) 
 

 

 

  

 

 

  

 

 

 

Financing Activities:

   

Dividend to UAL

  (1,844)   (2,614)   (1,233) 

Payments of long-term debt

  (901)   (1,215)   (2,178) 

Proceeds from issuance of long-term debt

  2,765    808    1,073  

Principal payments under capital leases

  (124)   (136)   (123) 

Capitalized financing costs

  (80)   (64)   (37) 

UAL contributions related to stock plans

        16  

Other, net

        (2) 
 

 

 

  

 

 

  

 

 

 

Net cash used in financing activities

  (181)   (3,206)   (2,484) 
 

 

 

  

 

 

  

 

 

 

Net increase (decrease) in cash, cash equivalents and restricted cash

  (712)   (909)   890  

Cash, cash equivalents and restricted cash at beginning of year

  2,297    3,206    2,316  
 

 

 

  

 

 

  

 

 

 

Cash, cash equivalents and restricted cash at end of year

  $1,585    $2,297    $3,206  
 

 

 

  

 

 

  

 

 

 
   

Investing and Financing Activities Not Affecting Cash:

   

Property and equipment acquired through the issuance of debt and capital leases

  $935    $386    $866  

Equity interest in Republic Airways Holdings, Inc. received in consideration for bankruptcy claims

  92    —    —  

Airport construction financing

  42    91    17  

Operating lease conversions to capital lease

  —    12    285  

Cash Paid During the Period for:

   

Interest

  $571     $584    $660  

Income taxes

  20    14    15  

 Year Ended December 31,
 2019 2018 (a) 2017 (a)
Operating Activities:     
Net income$3,011
 $2,123
 $2,161
Adjustments to reconcile net income to net cash provided by operating activities -     
Deferred income taxes882
 513
 941
Depreciation and amortization2,288
 2,165
 2,096
Special charges, non-cash portion175
 416
 35
Unrealized (gains) losses on investments(153) 5
 
Other operating activities186
 162
 141
Changes in operating assets and liabilities -     
(Increase) decrease in receivables44
 17
 (73)
Increase in intercompany receivables(33) (20) (15)
(Increase) decrease in other assets(252) 265
 (432)
Increase in advance ticket sales438
 441
 145
Increase (decrease) in frequent flyer deferred revenue271
 222
 (107)
Increase in accounts payable324
 130
 66
Decrease in advanced purchase of miles
 
 (942)
Decrease in other liabilities(302) (293) (556)
Net cash provided by operating activities6,879
 6,146
 3,460
Investing Activities:     
Capital expenditures(4,528) (4,070) (3,870)
Purchases of short-term and other investments(2,897) (2,552) (3,241)
Proceeds from sale of short-term and other investments2,996
 2,616
 3,177
Loans made to others(174) (466) (30)
Investment in affiliates(36) (139) (2)
Other, net79
 156
 163
Net cash used in investing activities(4,560) (4,455) (3,803)
Financing Activities:     
Proceeds from issuance of long-term debt1,847
 1,594
 2,537
Payments of long-term debt(1,240) (1,727) (901)
Dividend to UAL(1,645) (1,235) (1,844)
Principal payments under finance leases(151) (79) (84)
Capitalized financing costs(61) (37) (80)
Other, net
 1
 3
Net cash used in financing activities(1,250) (1,483) (369)
Net increase (decrease) in cash, cash equivalents and restricted cash1,069
 208
 (712)
Cash, cash equivalents and restricted cash at beginning of year1,793
 1,585
 2,297
Cash, cash equivalents and restricted cash at end of year$2,862
 $1,793
 $1,585
      
Investing and Financing Activities Not Affecting Cash:     
Property and equipment acquired through the issuance of debt$493
 $143
 $897
Right-of-use assets acquired through operating leases498
 663
 319
Property and equipment acquired through finance lease22
 17
 16
Lease modifications and lease conversions(2) 52
 
Debt associated with termination of a maintenance service agreement
 163
 
Investment in Republic Airways Holdings Inc. received from bankruptcy claims
 
 92
      
Cash Paid During the Period for:     
Interest$648
 $651
 $571
Income taxes29
 19
 20


(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.


UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED STOCKHOLDER’SSTOCKHOLDER'S EQUITY

(In millions)

  Additional
Capital
Invested
   Retained
Earnings
(Accumulated

Deficit)
   Accumulated
Other
Comprehensive
Income (Loss)
   Receivable
from Related
Parties, Net
   Total 

Balance at December 31, 2014

  $7,347     $(3,628)    $(1,079)    $(5)    $2,635  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net income

  —     7,301     —     —     7,301  

Other comprehensive income

  —     —     248     —     248  

Dividend to UAL

  (1,232)    —     —     —     (1,232) 

Share-based compensation

      —     —     —      

UAL contribution related to stock plans

  16     —     —     —     16  

Other

  —     —     —     (12)    (12) 
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Balance at December 31, 2015

  6,138     3,673     (831)    (17)    8,963  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net income

  —     2,264     —     —     2,264  

Other comprehensive income

  —     —         —      

Dividend to UAL

  (2,603)    —     —     —     (2,603) 

Share-based compensation

  32     —     —     —     32  

UAL contribution related to stock plans

      —     —     —      

Other

  —     —     —     (58)    (58) 
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Balance at December 31, 2016

  3,573     5,937     (829)    (75)    8,606  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net income

  —     2,149     —     —     2,149  

Other comprehensive loss

  —     —     (200)    —     (200) 

Dividend to UAL

  (1,844)    —     —     —     (1,844) 

Share-based compensation

  56     —     —     —     56  

UAL contribution related to stock plans

      —     —     —      

Excess tax benefits from share-based awards

  —     14     —     —     14  

Reclassification of stranded tax effects (Note 1)

  —     118     (118)    —     —  

Other

  —     —     —     (15)    (15) 
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Balance at December 31, 2017

  $1,787     $8,218     $(1,147)    $(90)    $8,768  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 
Additional
Capital
Invested
 
Retained Earnings (Accumulated
Deficit)
 
Accumulated
Other
Comprehensive
Income (Loss)
 Receivable from Related Parties, Net Total
Balance at December 31, 2016$3,573
 $5,851
 $(829) $(75) $8,520
Net income (a)
 2,161
 
 
 2,161
Other comprehensive loss
 
 (200) 
 (200)
Dividend to UAL(1,844) 
 
 
 (1,844)
Stock-settled share-based compensation56
 
 
 
 56
UAL contribution related to stock plans2
 
 
 
 2
Excess tax benefits from share-based awards
 14
 
 
 14
Reclassification of stranded tax effects
 118
 (118) 
 
Other (a)
 57
 
 (15) 42
Balance at December 31, 20171,787
 8,201
 (1,147) (90) 8,751
Net income (a)
 2,123
 
 
 2,123
Other comprehensive loss
 
 338
 
 338
Dividend to UAL(1,249) 
 
 
 (1,249)
Stock-settled share-based compensation60
 
 
 
 60
Other
 (5) 6
 (20) (19)
Balance at December 31, 2018598
 10,319
 (803) (110) 10,004
Net income
 3,011
 
 
 3,011
Other comprehensive loss
 
 85
 
 85
Dividend to UAL(664) (977) 
 
 (1,641)
Stock-settled share-based compensation66
 
 
 
 66
Other
 
 
 (33) (33)
Balance at December 31, 2019$
 $12,353
 $(718) $(143) $11,492

(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.


The accompanying Combined Notes to Consolidated Financial Statements are an integral part of these statements.


UNITED CONTINENTALAIRLINES HOLDINGS, INC.

UNITED AIRLINES, INC.

COMBINED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Overview

United ContinentalAirlines Holdings, Inc. (together with its consolidated subsidiaries, “UAL”"UAL" or the “Company”"Company") is a holding company and its principal, wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, “United”"United"). As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United’sUnited's operating revenues and operating expenses comprise nearly 100% of UAL’sUAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL’sUAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words “we,” “our,” “us,”"we," "our," "us," and the “Company”"Company" in this report for disclosures that relate to all of UAL and United.

NOTE 1 - SIGNIFICANT ACCOUNTING POLICIES

(a)
Use of Estimates—The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”("GAAP") requires management to make estimates and assumptions that affect the amounts reported in these financial statements and accompanying notes. Actual results could differ from those estimates.

(b)
Revenue Recognition—The Company records passenger ticket salespresents Passenger revenue, Cargo revenue and tickets sold by other airlines for useOther operating revenue on United as passengerits income statement. Passenger revenue is recognized when the transportation is provided or upon estimated breakage. The value of unused passenger ticketsand Cargo revenue is included in current liabilitiesrecognized when shipments arrive at their destination. Other operating revenue is recognized as Advance ticket sales. Tickets sold by other airlinesthe related performance obligations are recorded at the estimated values to be billed to the other airlines. Differences between amounts billed and the actual amounts may be rejected and rebilled or written off if the amount recorded was different from the original estimate. When necessary, the Company records a reserve against its interline billings and payables if historical experience indicates that these amounts are different.Non-refundable tickets generally expire on the date of the intended flight, unless the date is extended by notification from the customer on or before the intended flight date. Basic Economy tickets cannot be extended and refunds are not allowed except for ticket cancellations that are within 24 hours of purchase and one week or more prior to the original scheduled departure flight.satisfied.

Fees charged

Passenger tickets and related ancillary services sold by the Company for mainline and regional flights are purchased primarily via credit card transactions, with payments collected by the Company in associationadvance of the performance of related services. The Company initially records ticket sales in its Advance ticket sales liability, deferring revenue recognition until the travel occurs. For travel that has more than one flight segment, the Company deems each segment as a separate performance obligation and recognizes revenue for each segment as travel occurs. Tickets sold by other airlines where the Company provides the transportation are recognized as passenger revenue at the estimated value to be billed to the other airline when travel is provided. Differences between amounts billed and the actual amounts may be rejected and rebilled or written off if the amount recorded was different from the original estimate. When necessary, the Company records a reserve against its billings and payables with changesother airlines based on historical experience.
The Company sells certain tickets with connecting flights with one or extensions tonon-refundable ticketsmore segments operated by its other airline partners. For segments operated by its other airline partners, the Company has determined that it is acting as an agent on behalf of the other airlines as they are recordedresponsible for their portion of the contract (i.e. transportation of the passenger). The Company, as otherthe agent, recognizes revenue within Other operating revenue at the time of the fee is incurred. The fare on the changed ticket, including any additional collection of fare, is deferred and recognized in accordance with our transportation revenue recognition policy at the time the transportation is provided. Change fees related tonon-refundable tickets are considered a separate transaction from the air transportation because they represent a chargetravel for the Company’s additional servicenet amount representing commission to modify a previous sale. Therefore,be retained by the pricing of the change fee and the initial customer order are separately determined and represent distinct earnings processes.

The Company records an estimate of breakage revenue on the flight date for tickets that will expire unused. These estimates are based on the evaluation of actual historical results and forecasted trends. any segments flown by other airlines.

Refundable tickets expire after one year from the date of issuance.

Non-refundable tickets generally expire on the date of the intended travel, unless the date is extended by notification from the customer on or before the intended travel date. The Company recognizes cargorecords breakage revenue on the travel date for its estimate of tickets that will expire unused. To determine breakage, the Company uses its historical experience with refundable and nonrefundable expired tickets and other revenuefacts, such as servicerecent aging trends, program changes and modifications that could affect the ultimate expiration patterns of tickets. Fees charged in association with changes or extensions to non-refundable tickets are considered part of the Company's passenger travel obligation. As such, those fees are deferred at the time of collection and recognized at the time the travel is provided.

Under our capacity purchase agreements (“CPAs”) with regional carriers, we purchase all

United initially capitalizes the costs of selling airline travel tickets and then recognizes those costs as Distribution expense at the time of travel. Passenger ticket costs include credit card fees, travel agency and other commissions paid, as well as global distribution systems booking fees.
Advance Ticket Sales. Advance ticket sales represent the Company's liability to provide air transportation in the future. In the years ended December 31, 2019 and 2018, the Company recognized approximately $3.4 billion and $3.1 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those

periods. All tickets sold at any given point of time have travel dates extending up to 12 months. As a result, the balance of the capacity related to aircraft coveredCompany's Advance ticket sales liability represents activity that will be recognized in the next 12 months.
Revenue by Geography. The Company further disaggregates revenue by geographic regions.
Operating segments are defined as components of an enterprise with separate financial information, which are evaluated regularly by the contractschief operating decision maker and are responsible for selling allused in resource allocation and performance assessments. The Company deploys its aircraft across its route network through a single route scheduling system to maximize its value. When making resource allocation decisions, the Company's chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics. The Company's chief operating decision maker makes resource allocation decisions to maximize the Company's consolidated financial results. Managing the Company as one segment allows management the opportunity to maximize the value of the related seat inventory. We record the passenger revenue and related expenses as separateits route network.
The Company's operating revenue and expense inby principal geographic region (as defined by the consolidated statementU.S. Department of operations.

Accounts receivable primarily consist of amounts due from credit card companies and customers of our aircraft maintenance and cargo transportation services. We provide an allowance for uncollectible accounts equal to the estimated losses expected to be incurred based on historical write-offs and other specific analyses. Bad debt expense and write-offs were not materialTransportation) for the years ended December 31 is presented in the table below (in millions):

  2019 2018 2017
Domestic (U.S. and Canada) $26,960
 $25,552
 $23,114
Atlantic 7,387
 7,103
 6,340
Pacific 5,132
 5,188
 4,914
Latin America 3,780
 3,460
 3,416
Total $43,259
 $41,303
 $37,784
The Company attributes revenue among the geographic areas based upon the origin and destination of each flight segment. The Company's operations involve an insignificant level of dedicated revenue-producing assets in geographic regions as the overwhelming majority of the Company's revenue-producing assets (primarily U.S. registered aircraft) can be deployed in any of its geographic regions.
Ancillary Fees.The Company charges fees, separately from ticket sales, for certain ancillary services that are directly related to passengers' travel, such as ticket change fees, baggage fees, inflight amenities fees, and other ticket-related fees. These ancillary fees are part of the travel performance obligation and, as such, are recognized as passenger revenue when the travel occurs. The Company recorded $2.4 billion, $2.2 billion, and $2.0 billion of ancillary fees within passenger revenue in the years ended December 31, 2019, 2018 and 2017, 2016 and 2015.

respectively.
(c)
Ticket Taxes—Certain governmental taxes are imposed on the Company's ticket sales through a fee included in ticket prices. The Company collects these fees and remits them to the appropriate government agency. These fees are recorded on a net basis and, as a result, are excluded from revenue.
(d)
Frequent Flyer Accounting—United’sUnited's MileagePlus loyalty program builds customer loyalty by offering awards, benefits and services to program participants. Members in this program earn miles for flightstravel on United, United Express, Star Alliance members and certain other airlines that participate in the program. Members can also earn miles by purchasing the goods and services offrom our network ofnon-airline partners. We have contracts to sell miles to these partners whichwith the terms extending from one to nine years. These partners include domestic and international credit card issuers, retail merchants, hotels, car rental companies and our participating airline partners. Miles can be redeemed for free (other than taxes and government imposedgovernment-imposed fees), discounted or upgraded air travel andnon-travel awards. The Company records its obligation for future award redemptions using a deferred revenue model.

Miles Earned in Conjunction with Flights

Travel.When frequent flyers earn miles for flights, the Company recognizes a portion of the ticket sales as revenue when the air transportationtravel occurs and defers a portion of the ticket sale representing the value of the related miles as a multiple-deliverable revenue arrangement.separate performance obligation. The Company determines the estimated selling price of air transportationtravel and miles as if each element is sold on a separate basis. The total consideration from each ticket sale is then allocated to each of these elements, individually, on a pro ratapro-rata basis. TheAt the time of travel, the Company records the portion allocated to the miles are recorded into Frequent flyer deferred revenue on the Company’sCompany's consolidated balance sheet and recognizedsubsequently recognizes it into revenue when the transportation is provided.

miles are redeemed for air travel and non-air travel awards.

Estimate of Miles Not Expected to be Redeemed. The Company’sCompany's estimated selling price of miles is based on an equivalent ticket value less fulfillment discount,breakage, which incorporates the expected redemption of miles, as the best estimate of selling price for these miles. The equivalent ticket value is based on the prior 12 months’months' weighted average equivalent ticket value of similar fares as those used to settle award redemptions while taking into consideration such factors as redemption pattern, cabin class, loyalty status and geographic region. The estimated selling price of miles is adjusted by a fulfillment discountbreakage that considers a number of factors, including redemption patterns of various customer groups.

Co-branded Credit Card Partner Mileage Sales

The Company's breakage model is based on the assumption that the likelihood that an account will redeem its miles can be estimated


based on a consideration of the account's historical behavior. The Company uses a logit regression model to estimate the probability that an account will redeem its current miles balance. The Company reviews its breakage estimates annually based upon the latest available information. The Company's estimate of the expected breakage of miles requires significant management judgment. Current and future changes to breakage assumptions, or to program rules and program redemption opportunities, may result in material changes to the deferred revenue balance as well as recognized revenues from the program. For the portion of the outstanding miles that we estimate will not be redeemed, we recognize the associated value proportionally as the remaining miles are redeemed.
Co-Brand Agreement. United has a significant contract the Second Amended and RestatedCo-Branded Card Marketing Services Agreement (the“Co-Brand Agreement” "Co-Brand Agreement"), to sell MileagePlus miles to itsco-branded credit card partner JPMorgan Chase Bank, USA, N.A. (“Chase”("Chase"). Chase awards miles to MileagePlus members based on their credit card activity. United identified the following significant revenue elementsseparately identifiable performance obligations in theCo-Brand Agreement:
MileagePlus miles awarded – United has a performance obligation to provide MileagePlus cardholders with miles to be used for air travel and non-travel award redemptions. The Company records Passenger revenue related to the travel awards when the transportation is provided and records Other revenue related to the non-travel awards when the goods or services are delivered. The Company records the cost associated with non-travel awards in Other operating revenue.
Marketing – United has a performance obligation to provide Chase access to United's customer list and the use of United's brand. Marketing revenue is recorded to Other operating revenue as miles are delivered to Chase.
Advertising – United has a performance obligation to provide advertising in support of the MileagePlus card in various customer contact points such as United's website, email promotions, direct mail campaigns, airport advertising and in-flight advertising. Advertising revenue is recorded to Other operating revenue as miles are delivered to Chase.
Other travel-related benefits – United's performance obligations are comprised of various items such as waived bag fees, seat upgrades and lounge passes. Lounge passes are recorded to Other operating revenue as customers use the lounge passes. Bag fees and seat upgrades are recorded to Passenger revenue at the time of the associated travel.
We account for all the air transportation element representedpayments received (including monthly and one-time payments) under the Co-Brand Agreement by allocating them to the value of the mile (generally resulting from its redemption for future air transportation and whose fair value is described above); use of the United brand and access to MileagePlus member lists; advertising; and other travel related benefits.

separately identifiable performance obligations. The fair value of the elementsseparately identifiable performance obligations is determined using management’smanagement's estimated selling price of each element.component. The objective of using the estimated selling price based methodology is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. Accordingly, we determine our best estimate of selling price by considering multiple inputs and methods including, but not limited to, discounted cash flows, brand value, volume discounts, published selling prices, number of miles awarded and number of miles redeemed. The Company estimated the selling prices and volumes over the term of theCo-Brand Agreement in order to determine the allocation of proceeds to each of the multiple elementscomponents to be delivered. We also evaluate volumes on an annual basis, which may result in a change in the allocation of the estimated selling priceconsideration from the Co-Brand Agreement on a prospective basis.

Frequent Flyer Deferred Revenue. Miles in MileagePlus members' accounts are combined into one homogeneous pool and are thus not separately identifiable, for award redemption purposes, between miles earned in the current period and those in their beginning balance. Of the miles expected to be redeemed, the Company expects the majority of these miles to be redeemed within two years. The table below presents a roll forward of Frequent flyer deferred revenue (in millions):

 Twelve Months Ended
December 31,
 2019 2018
Total Frequent flyer deferred revenue - beginning balance$5,005
 $4,783
Total miles awarded2,621
 2,451
Travel miles redeemed (Passenger revenue)(2,213) (2,068)
Non-travel miles redeemed (Other operating revenue)(137) (161)
Total Frequent flyer deferred revenue - ending balance$5,276
 $5,005


In the years ended December 31, 2019, 2018 and 2017, the Company records passengerrecognized, in Other operating revenue, $2.0 billion, $2.0 billion (including a one-time $50 million payment) and $1.8 billion, respectively, related to the air transportation element when the transportation is delivered. Themarketing, advertising, non-travel miles redeemed (net of related costs) and other elements are generally recognized as Other operating revenue when earned.

Expiration of Miles

The Company accounts for miles sold and awarded that will never be redeemed by program members, which we refer to as breakage. The Company reviews its breakage estimates annually based upon the latest available information regarding redemption and expiration patterns. Miles expire after 18 months of member account inactivity.

The Company’s estimatetravel-related benefits of the expected expiration of miles requires significant management judgment. Current and future changesmileage revenue associated with our various partner agreements including, but not limited to, expiration assumptions orour Chase co-brand agreement. The portion related to the expiration policy, or to program rulesMileagePlus miles awarded of the total amounts received is deferred and program redemption opportunities, may resultpresented in material changes to the deferred revenue balancetable above as well as recognized revenues from the programs.

Other Information

The following table provides additional information relatedan increase to the frequent flyer program (in millions):

Year Ended

December 31,

  Cash Proceeds
from Miles Sold
and Earned
   Other Revenue
Recognized Upon
Award of Miles
to Third-Party
Customers (a)
   Increase in Frequent
Flyer Deferred
Revenue for Miles
Awarded (b)
   Decrease in
Advanced
Purchase

of Miles (c)
 

2017

   $2,343     $1,183     $2,025     $(865) 

2016

   3,022     1,221     2,050     (249) 

2015

   2,999     1,050     2,173     (224) 

 

       
(a) This amount represents other revenue recognized during the period from the sale of miles to third parties, representing the marketing-related deliverable services component of the sale. 
(b) This amount represents the increase to Frequent flyer deferred revenue during the period. 
(c) This amount represents the net decrease in the advance purchase of miles obligation due to cash payments for the sale of miles less than miles awarded to customers. 
liability.

(d)
(e)
Cash and Cash Equivalents and Restricted Cash—Highly liquid investments with a maturity of three months or less on their acquisition date are classified as cash and cash equivalents.

Restricted cash primarily includes cash collateral for letters of credit and collateral associated with obligations for facility leases and workers’ compensation.other insurance-related obligations. Restricted cash is classified as short-term or long-term in the consolidated balance sheets based on the expected timing of return of the assets to the Company.

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of consolidated cash flows:

flows (in millions):
 UAL United  UAL United
 At December 31, At December 31,  At December 31, At December 31,
 2017 2016 2015 2017 2016 2015  2019 2018 2017 2019 2018 2017

Current assets:

      Current assets:           

Cash and cash equivalents

 $1,482  $2,179  $3,006  $1,476  $2,173  $3,000 Cash and cash equivalents$2,762
 $1,694
 $1,482
 $2,756
 $1,688
 $1,476

Restricted cash included in Prepaid expenses and other

 18     2  18     2 Restricted cash included in Prepaid expenses and other
 
 18
 
 
 18

Other assets:

      Other assets:           

Restricted cash

 91  124  204  91  124  204 Restricted cash106
 105
 91
 106
 105
 91
 

 

  

 

  

 

  

 

  

 

  

 

 
Total cash, cash equivalents and restricted cash shown in the statement of consolidated cash flows $1,591  $2,303  $3,212  $1,585  $2,297  $3,206 Total cash, cash equivalents and restricted cash shown in the statement of consolidated cash flows$2,868
 $1,799
 $1,591
 $2,862
 $1,793
 $1,585
 

 

  

 

  

 

  

 

  

 

  

 

 


(e)Short-term
(f)
Investments—Short-termDebt investments are classified asavailable-for-sale and are stated at fair value. Realized gains and losses on sales of these investments are reflected in nonoperating income (expense)Miscellaneous, net in the consolidated statements of operations. Unrealized gains and losses onavailable-for-sale securities are reflected as a component of accumulated other comprehensive income (loss). Equity investments with readily determinable fair values are measured at fair value. Equity investments without readily determinable fair values are measured using the equity method, or measured at cost with adjustments for observable changes in price or impairments (referred to as the measurement alternative). Changes in fair value are recorded in Unrealized gains (losses) on investments, net in the consolidated statements of operations.

(f)
(g)
Accounts Receivable—Accounts receivable primarily consist of amounts due from credit card companies, non-airline partners, and cargo transportation customers. We provide an allowance for uncollectible accounts equal to the estimated losses expected to be incurred based on historical write-offs and other specific analyses. Bad debt expense and write-offs were not material for the year ended December 31, 2019 and 2018.
(h)
Aircraft Fuel, Spare Parts and Supplies—The Company accounts for aircraft fuel, spare parts and supplies at average cost and provides an obsolescence allowance for aircraft spare parts with an assumed residual value of 10% of original cost.

(g)
(i)
Property and Equipment—The Company records additions to owned operating property and equipment at cost when acquired. Property under capitalfinance leases and the related obligation for future lease payments are recorded at an amount equal to the initial present value of those lease payments. Modifications that enhance the operating performance or extend the useful lives of airframes or engines are capitalized as property and equipment. It is the Company’sCompany's policy to record compensation fromcontractual damages received related to delays in delivery of aircraft as a reduction of the cost of the related aircraft.

Depreciation and amortization of owned depreciable assets is based on the straight-line method over the assets’assets' estimated useful lives. Leasehold improvements are amortized over the remaining term of the lease, including estimated facility renewal options when renewal is reasonably assuredcertain at key airports, or the estimated useful life of the related asset, whichever is less. Properties under capitalfinance leases are amortized on the straight-line method over the life of the lease or, in the case of certain aircraft, over their estimated useful lives, whichever is shorter. Amortization of capitalfinance lease assets is included in depreciation and amortization expense. The estimated useful lives of property and equipment

are as follows:

  Estimated Useful Life (in years)

Aircraft, spare engines and related rotable parts

 25 to 30
Aircraft seats 10 to 15

Buildings

 25 to 45

Other property and equipment

 3 to 15

Computer software

 5 to 15

Building improvements

 1 to 40


As of December 31, 20172019 and 2016,2018, the Company had a carrying value of computer software of $345$422 million and $356$359 million, respectively. For the years ended December 31, 2019, 2018 and 2017, 2016 and 2015, the Company’sCompany's depreciation expense related to computer software was $117$135 million, $108$122 million and

$93 $117 million, respectively. Aircraft and aircraft spare parts were assumed to have residual values of approximately 10% of original cost, and other categories of property and equipment were assumed to have no residual value.

(h)
(j)
Long-Lived Asset Impairments—The Company evaluates the carrying value of long-lived assets subject to amortization whenever events or changes in circumstances indicate that an impairment may exist. For purposes of this testing, the Company has generally identified the aircraft fleet type as the lowest level of identifiable cash flows. An impairment charge is recognized when the asset's carrying value exceeds its net undiscounted future cash flows and its fair market value. The amount of the charge is the difference between the asset's carrying value and fair market value. See Note 14 of this report for additional information related to impairments.
(k)
Intangibles—The Company has finite-lived and indefinite-lived intangible assets, including goodwill. Finite-lived intangible assets are amortized over their estimated useful lives. Goodwill and indefinite-lived intangible assets are not amortized but are reviewed for impairment on an annual basis as of October 1, or more frequently if events or circumstances indicate that the asset may be impaired. See Note 14 of this report for additional information related to impairments.
The following table presents information about the Company's goodwill and other intangible assets at December 31 (in millions):
  2019 2018
  
Gross 
Carrying
Amount
 
Accumulated
Amortization
 
Gross 
Carrying
Amount
 
Accumulated
Amortization
Goodwill $4,523
   $4,523
  
         
Indefinite-lived intangible assets        
Route authorities $1,150
   $1,240
  
Airport slots 546
   546
  
Tradenames and logos 593
   593
  
Alliances 404
   404
  
Total $2,693
   $2,783
  
         
Finite-lived intangible assets        
Frequent flyer database $1,177
 $931
 $1,177
 $884
Hubs 145
 104
 145
 97
Contracts 120
 111
 120
 106
Other 314
 294
 314
 293
Total $1,756
 $1,440
 $1,756
 $1,380

Amortization expense in 2019, 2018 and 2017 was $60 million, $67 million and $79 million, respectively. Projected amortization expense in 2020, 2021, 2022, 2023 and 2024 is $55 million, $50 million, $40 million, $37 million and $32 million, respectively.

(l)
Labor Costs—The Company records expenses associated with new or amendable labor agreements when the amounts are probable and estimable. These include costs associated with lump sum cash payments that would be made in conjunction with the ratification of labor agreements. To the extent these upfront costs are in lieu of future pay increases, they would be capitalized and amortized over the term of the labor agreements. If not, these amounts would be expensed.
(m)
Share-Based Compensation—The Company measures the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. The resulting cost is recognized over the period during which an employee is required to provide service in exchange for the award, usually the vesting period. Obligations for cash-settled restricted stock units ("RSUs") are remeasured at fair value throughout the requisite service period at the close of the reporting period based upon UAL's stock price. In addition to the service requirement, certain RSUs have performance metrics that must be achieved prior to vesting. These awards are accrued based on the expected level of achievement at each reporting period. An adjustment is recorded each reporting period to adjust compensation expense based on the then current level of expected performance achievement for the performance-based awards. See Note 4 of this report for additional information on UAL's share-based compensation plans.
(n)
Maintenance and Repairs—The cost of maintenance and repairs, including the cost of minor replacements, is charged to expense as incurred, except for costs incurred under ourpower-by-the-hour (“PBTH” ("PBTH") engine maintenance agreements. PBTH contracts transfer certain risk to third-party service providers and fix the amount we pay per flight hour or per cycle to the service provider in exchange for maintenance and repairs under a predefined maintenance program. Under PBTH agreements, the Company recognizes expense at a level rate per engine hour, unless the level of service effort and the related payments during the period are substantially consistent, in which case the Company recognizes expense based on the amounts paid.

(i)Lease Fair Value Adjustments—Lease fair value adjustments, which arose from recording operating leases at fair value under fresh start or business combination accounting, are amortized on a straight-line basis over the related lease term.

(j)(o)Regional Capacity Purchase—Payments made to regional carriers under CPAs are reported in Regional capacity purchase in our consolidated statements of operations.

(k)
Advertising—Advertising costs, which are included in Other operating expenses, are expensed as incurred. Advertising expenses were $217$212 million, $220$211 million and $201$217 million for the years ended December 31, 2019, 2018 and 2017, 2016 and 2015, respectively.

(l)Intangibles—
(p)
Third-Party Business—The Company has finite-livedthird-party business revenue that includes fuel sales, catering, ground handling, maintenance services and indefinite-lived intangible assets, including goodwill. Finite-lived intangible assets are amortized over their estimated useful lives. Goodwill and indefinite-lived intangible assets are not amortized but are reviewed for impairment annually or more frequently if events or circumstances indicate that the asset may be impaired. Goodwill and indefinite-lived assets are reviewed for impairment on an annual basis as of October 1, or on an interim basis whenever a triggering event occurs. See Note 2 of this report for additional information related to intangibles.

(m)Long-Lived Asset Impairments—frequent flyer award non-travel redemptions. Third-party business revenue is recorded in Other operating revenue. The Company evaluates the carrying value of long-lived assets subject to amortization whenever events or changes in circumstances indicate that an impairment may exist. For purposes of this testing, the Company has generally identified the aircraft fleet typealso incurs third-party business expenses, such as the lowest level of identifiable cash flows. An impairment charge is recognized when the asset’s carrying value exceeds its net undiscounted future cash flowsmaintenance, ground handling and its fair market value.catering services for third parties, fuel sales and non-travel mileage redemptions. The amount of the charge is the difference between the asset’s carrying value and fair market value. See Note 14 of this report for additional information related to asset impairments.

(n)Share-Based Compensation—The Company measures the cost of employee services received in exchange for an award of equity instruments based on the grant date fair value of the award. The resulting cost is recognized over the period during which an employee is required to provide service in exchange for the award, usually the vesting period. Obligations for cash-settled restricted stock units (“RSUs”) are remeasured at fair value throughout the requisite service period on the last day of each reporting period based upon UAL’s stock price. In addition to the service requirement, certain RSUs have performance metrics that must be achieved prior to vesting. These awards are accrued based on the expected level of achievement at each reporting period. A cumulative adjustment is recorded on the last day of each reporting period to adjust compensation expense based on both UAL’s stock price and the then current level of expected performance achievement for the performance-based awards. See Note 5 of this report for additional information on UAL’s share-based compensation plans.

(o)Ticket Taxes—Certain governmental taxes are imposed on the Company’s ticket sales through a fee included in ticket prices. The Company collects these fees and remits them to the appropriate government agency. These feesthird-party business expenses are recorded on a net basis (excluded fromin Other operating revenue).expenses, except for non-travel mileage redemption. Non-travel mileage redemption expenses are recorded to Other operating revenue.

(p)Retirement of Leased Aircraft—The Company accrues for estimated lease costs over the remaining term of the lease at the present value of future minimum lease payments, net of estimated sublease rentals (if any), in the period that aircraft are permanently removed from service. When reasonably estimable and probable, the Company estimates maintenance lease return condition obligations for items such as minimum aircraft and engine conditions specified in leases and accrues these amounts over the lease term while the aircraft are operating, and any remaining unrecognized estimated obligations are accrued in the period that an aircraft is removed from service.

(q)
Uncertain Income Tax Positions—The Company has recorded reserves for income taxes and associated interest that may become payable in future years. Although management believes that its positions taken on income tax matters are reasonable, the Company nevertheless has established tax and interest reserves in recognition that various taxing authorities may challenge certain of the positions taken by the Company, potentially resulting in additional liabilities for taxes and interest. The Company’sCompany's uncertain tax position reserves are reviewed periodically and are adjusted as events occur that affect its estimates, such as the availability of new information, the lapsing of applicable statutes of limitation, the conclusion of tax audits, the measurement of additional estimated liability, the identification of new tax matters, the release of administrative tax guidance affecting its estimates of tax liabilities, or the rendering of relevant court decisions. The Company records penalties and interest relating to uncertain tax positions as part of income tax expense in its consolidated statements of operations. The Company has not recorded any material expense or liabilities related to interest or penalties in its consolidated financial statements.See Note 6 of this report for additional information on UAL's uncertain tax positions.

(r)Labor Costs—The Company records expenses associated with amendable labor agreements when the amounts are probable and estimable. These include costs associated with lump sum cash payments that would be made in conjunction with the ratification of labor agreements. To the extent these upfront costs are in lieu of future pay increases, they would be capitalized and amortized over the term of the labor agreements. If not, these amounts would be expensed.

(s)
(r)
Third-Party Business—The Company has third-party business revenue that includes fuel sales, catering, ground handling, maintenance services and frequent flyer awardnon-air redemptions. Third-party business revenue is recorded in Other operating revenue. The Company also incurs third-party business expenses, such as maintenance, ground handling and catering services for third parties, fuel sales andnon-air mileage redemptions. The third-party business expenses are recorded in Other operating expenses.

(t)

Recently Issued Accounting Standards—In 2014,theThe Company adopted Financial Accounting Standards Board (“FASB”("FASB") amended the FASB Accounting Standards Codification Topic 842, Leases (the "New Lease Standard"), effective January 1, 2019. The Company used the modified retrospective approach for all leases existing at or commencing after January 1, 2017 and created a new Topic 606,Revenue from Contracts with Customers(“Topic 606”). This amendmentelected the package of transition practical expedients for expired or existing contracts, which does not require reassessment of: (1) whether any of our contracts are or contain leases, (2) lease classification and (3) initial direct costs. The New Lease Standard prescribes that an entity should recognize revenuea right-of-use asset and a lease liability for all leases at the commencement date of each lease and recognize expenses on their income statements similar to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendment supersedes the revenue recognition requirements in Topic 605,Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of theprior FASB Accounting Standards Codification. The Company used the full-retrospective approach in adopting this standard on January 1, 2018. The standard impacts the classification of certain revenue streams and affects the timing of revenue and expense recognition for others. For the Company, the most significant impact of this standard is the reclassification of certain ancillary fees from other operating revenue into passenger revenue on the statement of consolidated operations. These ancillary fees are directly related to passenger travel, such as ticket change fees and baggage fees, and will no longer be considered distinct performance obligations separate from the passenger travel component. In addition, the ticket change fees, which were previously recognized when received, will be recognized when transportation is provided. While the classification of certain transactions within operating revenue and between operating revenue and operating expenses will change, the adoption of the standard will not have a material impact on our earnings. Further, adoption of the standard will have no impact on cash provided by or used in

Codification Topic 840,
Leases ("Topic 840").

operating, financing, or investing activities in our consolidated cash flows statements. Adoption of Topic 606 is expected to impact our reported results as shown in the table below:

StatementsThe adoption of Consolidated Operations for the Years Ended December 31,

   As Reported  Adjustment  As Adjusted
for Adoption of
Topic 606
 
   2017  2016  2017  2016  2017  2016 

Operating revenue:

       

Passenger—Mainline

  $26,552   $25,414   $1,707   $1,615   $28,259   $27,029  

Passenger—Regional

   5,852    6,043    349    357    6,201    6,400  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total passenger revenue

   32,404    31,457    2,056    1,972    34,460    33,429  

Cargo

   1,035    876    79    58    1,114    934  

Other operating revenue

   4,297    4,223    (2,087)    (2,028)    2,210    2,195  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total operating revenue

   37,736    36,556    48       37,784    36,558  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Operating expenses

   34,238    32,218    (21)    (12)    34,217    32,206  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Operating income

   3,498    4,338    69    14    3,567    4,352  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Nonoperating expense, net

   (499)    (519)    (28)    (60)    (527)    (579)  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income before income taxes

   2,999    3,819    41    (46)    3,040    3,773  

Income tax expense (benefit)

   868    1,556    28    (17)    896    1,539  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  $2,131   $2,263   $13   $(29)   $2,144   $2,234  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Earnings per share, basic

  $7.04   $6.86   $0.04   $(0.09)   $7.08   $6.77  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Earnings per share, diluted

  $7.02   $6.85   $0.04   $(0.09)   $7.06   $6.76  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Consolidated Balance SheetsNew Lease Standard had the same impact on the financial statements of United as it had on the financial statements of December 31,

   As Reported   Adjustment  As Adjusted
for Adoption of
Topic 606
 
   2017   2016   2017  2016  2017   2016 

Current assets:

          

Prepaid expenses and other

  $1,051    $832    $20   $20  $1,071    $852  

Other assets:

          

Deferred income taxes

   —     655     —    48   —     703  

Current liabilities:

          

Advance ticket sales

   3,876     3,730     64    65   3,940     3,795  

Frequent flyer deferred revenue

   2,176     2,135     16    14   2,192     2,149  

Other

   569     1,010        79   576     1,089  

Other liabilities and deferred credits:

          

Frequent flyer deferred revenue

   2,565     2,748     26    (8  2,591     2,740  

Advanced purchase of miles

   —     430     —    3   —     433  

Deferred income taxes

   225     —     (21)    —    204     —  

Stockholders’ equity:

          

Retained earnings

   4,621     3,427     (72)    (85  4,549     3,342  

In 2016, the FASB amended the FASB Accounting Standards Codification and created a new Topic 842,Leases(“Topic 842”).UAL. The guidance requires lessees to recognize aright-of-use asset and a lease liability for all leases (with the exception of short-term leases) at the commencement date and recognize expenses on their income statements similar to the current Topic 840,Leases. It is effective for fiscal years and interim periods beginning after December 15, 2018, and early adoption is permitted. Lessees and lessors are required to adopt Topic 842 using a modified retrospective approach for all leases existing at or commencing after the date of initial application with an option to use certain practical expedients. We have not completed our evaluation oftable below presents the impact of the new standard, but believeadoption of the New Lease Standard on select accounts and captions of UAL's statement of consolidated operations for the year ended December 31 (in millions, except per share amounts):


 As Reported New Lease Standard Adjustments As Adjusted
 2018 2017 2018 2017 2018 2017
Regional capacity purchase$2,601
 $2,232
 $48
 $36
 $2,649
 $2,268
Landing fees and other rent2,359
 2,240
 90
 70
 2,449
 2,310
Depreciation and amortization2,240
 2,149
 (75) (53) 2,165
 2,096
Interest expense(729) (671) 59
 45
 (670) (626)
Interest capitalized70
 84
 (5) (10) 65
 74
Income tax expense529
 896
 (3) (16) 526
 880
Net income2,129
 2,144
 (7) (1) 2,122
 2,143
Earnings per share, basic7.73
 7.08
 (0.03) 
 7.70
 7.08
Earnings per share, diluted7.70
 7.06
 (0.03) 
 7.67
 7.06
The expense for leases under the New Lease Standard will continue to be classified in their historical income statement captions (primarily in Aircraft rent, Landing fees and other rent and Regional capacity purchase in our statements of consolidated operations). The adoption of the New Lease Standard resulted in the recharacterization of certain leases from capital leases under Topic 840 to operating leases under the New Lease Standard. This change resulted in less depreciation and amortization and interest expense associated with capital leases offset by higher lease expense associated with operating leases. The recharacterization is associated with leases of certain airport facilities that it will have a significantwere derecognized as part of the build-to-suit transition guidance under the New Lease Standard. The reduction in capitalized interest is also associated with the same airport facilities leases.
The table below presents the impact of the adoption of the New Lease Standard on UAL's balance sheet accounts and captions (in millions):
  December 31, 2018
  As Reported New Lease Standard Adjustments As Adjusted
Receivables, less allowance for doubtful accounts $1,346
 $80
 $1,426
Prepaid expenses and other 913
 (180) 733
Flight equipment, owned and finance leases (a) 32,636
 (37) 32,599
Other property and equipment, owned and finance leases (a) 7,930
 (1,041) 6,889
Accumulated depreciation and amortization, owned and finance leases (a) (13,414) 148
 (13,266)
Operating lease right-of-use assets 
 5,262
 5,262
Current maturities of finance leases (a) 149
 (26) 123
Current maturities of operating leases 
 719
 719
Other current liabilities 619
 (66) 553
Long-term obligations under finance leases (a) 1,134
 (910) 224
Long-term obligations under operating leases 
 5,276
 5,276
Deferred income taxes 814
 14
 828
Other long-term liabilities 1,832
 (822) 1,010
Retained earnings 6,668
 47
 6,715

(a) Finance leases, under the New Lease Standard, are the equivalent of capital leases under Topic 840.

The table below presents the impact of the adoption of the New Lease Standard on select line items of UAL's statement of consolidated cash flows for the year ended December 31 (in millions):

 As Reported New Lease Standard Adjustments As Adjusted
 2018 2017 2018 2017 2018 2017
Cash Flows from Operating Activities:           
Net cash provided by operating activities$6,181
 $3,413
 $(17) $61
 $6,164
 $3,474
            
Cash Flows from Investing Activities:           
Capital expenditures(4,177) (3,998) 107
 128
 (4,070) (3,870)
            
Cash Flows from Financing Activities:           
Proceeds from issuance of long-term debt1,740
 2,765
 (146) (228) 1,594
 2,537
Principal payments under finance leases(134) (124) 55
 40
 (79) (84)

The adoption of the New Lease Standard primarily resulted in the recording of assets and liabilities of our operating leases on our consolidated balance sheets. Certain amounts recorded for prepaid and accrued rent associated with historical operating leases were reclassified to the newly captioned Operating lease right-of-use assets in the consolidated balance sheets. Also, certain leases designated under Topic 840 as owned assets and capital leases are not considered to be assets under the New Lease Standard and have been removed from the consolidated balance sheets, along with the related capital lease liability, due to the leases having variable lease payments.
In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Financial Instruments-Credit Losses ("ASU 2016-13"). The newamendments in this update replace the incurred loss methodology with a methodology that reflects expected credit losses. This update requires financial assets measured at amortized cost basis, such as trade receivables, loans and held-to-maturity debt securities, to be presented at the net amount expected to be collected, and requires entities to record expected losses for certain guarantees and off-balance sheet exposures. The update also eliminates the concept of other-than-temporary impairment for available-for-sale securities. Impairments on available-for-sale securities will be required to be recognized in earnings through an allowance when the fair value is less than amortized cost and a credit loss exists, or the securities are expected to be sold before recovery of amortized cost. The Company adopted ASU 2016-13 on January 1, 2020. The standard update is not expected to have a material impact on the Company’s results of operations or cash flows. The primary effect of adopting the new standard will be to record assets and obligations for its operating leases.

In 2016, the FASB issued Accounting Standards UpdateNo. 2016-01,Financial Instruments—Overall (Subtopic825-10) (“ASU2016-01”). This standard makes several changes, including the elimination of theavailable-for-sale classification of equity investments, and requires equity investments with readily determinable fair values to be measured at fair value with changes in fair value recognized in net income. It is effective for interim and annual periods beginning after December 15, 2017. Based on its portfolio of investments as of December 31, 2017, the Company does not expect the adoption of ASU2016-01 to have a material impact on itsCompany's consolidated financial statements.

In 2017, the FASB issued Accounting Standards UpdateNo. 2017-07,Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost(“ASU2017-07”). The update requires employers to present the service cost component of the net periodic benefit cost in the same income statement line item as other employee compensation costs arising from services rendered during the period. The other components of net benefit cost, including interest cost, expected return on plan assets, amortization of prior service cost/credit and actuarial gain/loss, and settlement and curtailment effects, are to be presented outside of any subtotal of operating income. Employers will have to disclose the line(s) used to present the other components of net periodic benefit cost, if the components are not presented separately in the income statement.ASU2017-07 is effective for fiscal years and interim periods beginning after December 15, 2017, and early adoption is permitted. The Company does not expect the adoption of ASU2017-07 to have a material impact on its consolidated financial statements. Early adoption of ASU2017-07 would have impacted the statement of consolidated operations as shown in the table below:

Statements of Consolidated Operations for the Years Ended December 31,

   As Reported  Adjustment  As Adjusted for
Adoption of
ASU2017-07
 
   2017   2016  2017  2016  2017  2016 

Operating expense:

        

Salaries and related costs

  $11,045    $10,275   $(104)   $(99 $10,941   $10,176  

Special charges

   176     638    —    107   176    745  

Nonoperating income (expense):

        

Miscellaneous, net

       (19)    (104)    8   (101)    (11)  

In February 2018, the FASB issued Accounting Standards UpdateNo. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income(“ASU2018-02”). This standard focuses on a targeted improvement to reclassify stranded tax effects resulting from the Tax Cuts and Jobs Act (the “Tax Act”) enacted on December 22, 2017 from accumulated other comprehensive income (“AOCI”) to retained earnings (“RE”). The amount of the reclassification would be the difference between the amount initially charged

or credited directly to other comprehensive income at the previously enacted U.S. federal corporate income tax rate that remains in AOCI and the amount that would have been charged or credited directly to other comprehensive income using the newly enacted U.S. federal corporate income tax rate, excluding the effect of any valuation allowance previously charged to income from continuing operations. ASU2018-02 is effective for interim and annual periods beginning after December 15, 2018, and early adoption is permitted. We have elected to early adopt this standard for the year ended December 31, 2017. We have reclassified $118 million from AOCI to RE as a result of this adoption. See Note 6 of this report for additional information.

NOTE 2 - GOODWILL AND OTHER INTANGIBLE ASSETS

The following table presents information about the Company’s goodwill and other intangible assets at December 31 (in millions):

       2017   2016 

Item

  Asset life (a)   Gross Carrying
Amount
   Accumulated
Amortization
   Gross Carrying
Amount
   Accumulated
Amortization
 

Goodwill

     $4,523       $4,523    
    

 

 

     

 

 

   
          

Finite-lived intangible assets

          

Frequent flyer database (b)

   22    $1,177     $832     $1,177     $771  

Hubs

   20    145     89     145     82  

Contracts

   13    121     103     135     95  

Patents and tradenames

   3    108     108     108     108  

Airport slots and gates

   8    97     97     97     97  

Other

   25    109     84     109     81  
    

 

 

   

 

 

   

 

 

   

 

 

 

Total

     $1,757     $1,313     $1,771     $1,234  
    

 

 

   

 

 

   

 

 

   

 

 

 

Indefinite-lived intangible assets

          

Route authorities

     $1,562       $1,562    

Airport slots and gates

     536       536    

Tradenames and logos

     593       593    

Alliances

     404       404    
    

 

 

     

 

 

   

Total

     $3,095       $3,095    
    

 

 

     

 

 

   

(a) Weighted average life expressed in years.

(b) The frequent flyer database is amortized based on an accelerated amortization schedule to reflect utilization of the assets. Estimated cash flows correlating to the expected attrition rate of customers in the frequent flyer database is considered in the determination of the amortization schedules.

Amortization expense in 2017, 2016 and 2015 was $79 million, $90 million and $105 million, respectively. Projected amortization expense in 2018, 2019, 2020, 2021 and 2022 is $67 million, $61 million, $55 million, $50 million and $40 million, respectively.

See Note 14 of this report for additional information related to impairment of intangible assets.

NOTE 3 –2 - COMMON STOCKHOLDERS’STOCKHOLDERS' EQUITY AND PREFERRED SECURITIES

In 2017,2019, UAL repurchased approximately 2819.2 million shares of UAL common stock for $1.8 billion, completing its July 2016 repurchase authorization.$1.6 billion. In December 2017, UAL’sUAL's Board of Directors authorized a $3.0 billion share repurchase program to acquire UAL's common stock. In July 2019, UAL's Board of Directors authorized a new $3.0 billion share repurchase program to acquire UAL’sUAL's common stock. As of December 31, 2017,2019, the Company had approximately $3.0$3.1 billion remaining to purchase shares under its existing share repurchase authority.programs. UAL may repurchase shares through the open market, privately negotiated transactions, block trades or accelerated share repurchase transactions from time to time in accordance with applicable securities laws. UAL may repurchase shares of UAL common stock subject to prevailing market conditions, and may discontinue such repurchases at any time. See Part II, Item 5,5. Market for registrant’s common equity, related stockholder mattersRegistrant's Common Equity, Related Stockholder Matters and issuer purchasesIssuer Purchases of equity securities,Equity Securities, of this report for additional information.

In 2017, the Company retired 25 million treasury shares that were originally acquired at an average cost of approximately $63 per share.

At December 31, 2017,2019, approximately 108 million shares of UAL’sUAL's common stock were reserved for future issuance related to the issuance of equity-based awards under the Company’sCompany's incentive compensation plans.

As of December 31, 2017,2019, UAL had two2 shares of junior preferred stock (par value $0.01 per share) outstanding. In addition, UAL is authorized to issue 250 million shares of preferred stock (without par value) under UAL’sUAL's amended and restated certificate of incorporation.

NOTE 43 - EARNINGS PER SHARE

The computations of UAL’sUAL's basic and diluted earnings per share are set forth below for the years ended December 31 (in millions, except per share amounts):

           2017                   2016                   2015         

Earnings available to common stockholders

   $2,131     $2,263     $7,340  
  

 

 

   

 

 

   

 

 

 
      

Basic weighted-average shares outstanding

   302.7     329.9     376.1  

Effect of convertible notes

   —     —     0.3  

Effect of employee stock awards

   0.9     0.4     0.5  
  

 

 

   

 

 

   

 

 

 

Diluted weighted-average shares outstanding

   303.6     330.3     376.9  
  

 

 

   

 

 

   

 

 

 
      

Earnings per share, basic

   $7.04     $6.86     $19.52  
  

 

 

   

 

 

   

 

 

 

Earnings per share, diluted

   $7.02     $6.85     $19.47  
  

 

 

   

 

 

   

 

 

 

  2019 2018 (a) 2017 (a)
Earnings available to common stockholders $3,009
 $2,122
 $2,143
       
Basic weighted-average shares outstanding 258.8
 275.5
 302.7
Effect of employee stock awards 1.1
 1.2
 0.9
Diluted weighted-average shares outstanding 259.9
 276.7
 303.6
       
Earnings per share, basic $11.63
 $7.70
 $7.08
Earnings per share, diluted $11.58
 $7.67
 $7.06
(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 of this report for additional information on the adjustments.
The number of antidilutive securities excluded from the computation of diluted earnings per share amounts was not material.

NOTE 54 - SHARE-BASED COMPENSATION PLANS

UAL maintains several share-based compensation plans. In May 2017, UAL’s Boardplans for our management employees and our non-employee directors. These plans provide for grants of Directors and stockholders approved the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (the “2017 Plan”). The 2017 Plan is an incentive compensation plan that allows the Company to use different forms of long-term equity incentives to attract, retain, and reward officers and employees (including prospective officers and employees). The 2017 Plan replaced the United Continental Holdings, Inc. 2008 Incentive Compensation Plan (the “2008 Plan”). Any awards granted under the 2008 Plan prior to the approval of the 2017 Plan remain in effect pursuant to their terms. Awards may not be granted under the 2017 Plan after May 24, 2027. Under the 2017 Plan, the Company may grant:non-qualified stock options, incentive stock options (within the meaning of Section 422 of the Internal Revenue Code of 1986), stock appreciation rights, restricted shares, RSUs, performance compensation awards, performance units, cash incentive awards, other equity-based and equity-related awards, and dividends and dividend equivalents.

All awards are recorded as either equity or a liability in the Company’sCompany's consolidated balance sheets. The share-based compensation expense is recorded in salaries and related costs.

During 2017,2019, UAL granted share-based compensation awards pursuant to both the 2008 Plan and theUnited Continental Holdings, Inc. 2017 Incentive Compensation Plan. These share-based compensation awards includeincluded approximately 1.61.2 million RSUs consisting of 1.00.9 million time-vested RSUs and 0.60.3 million performance-based RSUs and approximately 36,000307,000 stock options. The time-vested RSUs vestpro-rata, a majority of which vest on February 28th of each year, over a three yearthree-year period from the date

of grant. TheseThe amount of performance-based RSUs that vest will be based on the Company's relative improvement in pre-tax margin compared to a group of airline industry peers for the three years ending December 31, 2021. The RSUs are generally equity awards settled in stock for domestic employees and liability awards settled in cash for international employees. The cash payments are based on the20-day average closing price of UAL common stock immediately prior to the vesting date. The performance-based RSUs vest based on the Company’s relative improvement inpre-tax margin compared to a group of airline industry peers for the three years ending December 31, 2019. If the performance condition is achieved, cash payments will be made after the end of the performance period based on the20-day average closing price of UAL common stock immediately prior to the vesting date and based on the level, if any, of the performance goal achieved. The Company accounts for the performance-based RSUs as liability awards. The stock options have aten-year term and vestpro-rata annually over six years, at variable rates, beginning on the third fourth and fifth anniversariesanniversary of the dateUAL's 2020 Annual Meeting of grant.

Stockholders.


The following table provides information related to UAL’sUAL's share-based compensation plan cost for the years ended December 31 (in millions):

       2017           2016           2015     

Compensation cost:

      

RSUs

   $63     $58     $52  

Restricted stock

       11      

Stock options

           —  
  

 

 

   

 

 

   

 

 

 

Total

   $73     $70     $58  
  

 

 

   

 

 

   

 

 

 

  2019 2018 2017
Compensation cost:      
RSUs $98
 $98
 $63
Restricted stock 1
 2
 8
Stock options 1
 1
 2
Total $100
 $101
 $73

The table below summarizes UAL’sUAL's unearned compensation and weighted-average remaining period to recognize costs for all outstanding share-based awards that are probable of being achieved as of December 31, 20172019 (in millions, except as noted):

   Unearned
Compensation
   Weighted-
Average
Remaining
Period

(in years)
 

RSUs

   $46     1.9  

Stock options

       3.9  

Restricted stock

       1.2  
  

 

 

   

Total

   $53    
  

 

 

   

  Unearned Compensation 
Weighted-Average
Remaining Period
(in years)
RSUs $66
 2.0
Stock options 11
 5.3
Total $77
  

RSUs and Restricted Stock. All performance-based RSUs, as well as a portion of the outstanding time-vested RSUs, will be settled in cash.Stock. As of December 31, 2017,2019, UAL had recorded a liability of $38$44 million related to its cash-settled RSUs. UAL paid $50$41 million, $69$28 million and $85$50 million related to its cash-settled RSUs during 2019, 2018 and 2017, 2016 and 2015, respectively.

The table below summarizes UAL’sUAL's RSUs and restricted stock activity for the years ended December 31 (shares in millions):

   RSUs     Restricted Stock   Weighted-
Average
Grant Price
 

Outstanding at December 31, 2014

   3.8       0.7    $32.55  

Granted

   1.0       0.2     66.53  

Vested

   (1.6)      (0.4)    31.14  

Forfeited

   (0.6)      (0.2)    46.23  
  

 

 

     

 

 

   

Outstanding at December 31, 2015

   2.6       0.3     48.68  

Granted

   1.9       0.4     50.63  

Vested

   (1.4)      (0.1)    41.47  

Forfeited

   (0.2)      (0.1)    53.42  
  

 

 

     

 

 

   

Outstanding at December 31, 2016

   2.9       0.5     52.00  
  

 

 

     

 

 

   

Granted

   1.6       —     —  

Vested

   (1.0)      (0.2)    51.60  

Forfeited

   (0.3)      —     51.88  
  

 

 

     

 

 

   

Outstanding at December 31, 2017

   3.2       0.3     52.30  
  

 

 

     

 

 

   

  Liability Awards Equity Awards
  RSUs 

RSUs
 
Weighted-
Average
Grant Price
 
Restricted 
Stock
 
Weighted-
Average
Grant Price
Outstanding at December 31, 2016 2.1
 0.8
 $51.67
 0.5
 $52.00
Granted 0.6
 1.0
 71.68
 
 
Vested (0.7) (0.3) 51.81
 (0.2) 51.60
Forfeited (0.2) (0.1) 57.49
 
 
Outstanding at December 31, 2017 1.8
 1.4
 63.99
 0.3
 52.30
Granted 0.7
 1.1
 67.74
 
 
Vested (0.5) (0.5) 63.02
 (0.2) 53.24
Forfeited (0.1) (0.2) 67.34
 
 
Outstanding at December 31, 2018 1.9
 1.8
 66.29
 0.1
 51.17
Granted 0.1
 1.1
 86.72
 
 
Vested (0.5) (0.8) 64.85
 (0.1) 51.17
Forfeited (0.9) (0.1) 76.48
 
 
Outstanding at December 31, 2019 0.6
 2.0
 78.03
 
 

The fair value of RSUs and restricted stock that vested in 2019, 2018 and 2017 2016 and 2015 was $76$99 million, $80$70 million and $92$76 million, respectively. The fair value of the restricted stock and the stock-settled RSUs was based upon the UAL common stock price on the date of grant. These awards are accounted for as equity awards. The fair value of the cash-settled RSUs was based on the UAL common stock price as of the last day preceding the settlement date. These awards are accounted for as liability awards. Restricted
Stock Options. In 2019, UAL granted an award of approximately 307,000 premium-priced stock vesting andoptions with an exercise price that was 25% higher than the recognitionclosing price of UAL's common stock on the expense is similar to thedate of grant, representing an exercise price of $110.21. UAL did not grant any stock option vesting described below.

Stock Options. Duringawards during 2018. In 2017, UAL granted approximately 36,000 stock options with an exercise pricesprice equal to the fair market value of UAL’sUAL's common stock on the date of grant, with a weighted-averagerepresenting an exercise price of $77.56 and a weighted-average grant date fair value of approximately $0.7 million. In 2016, UAL granted approximately 0.1 million stock options with exercise prices equal to the fair market value of UAL’s common stock on the date of grant and an additional approximately 0.3 million stock options with exercise prices at a 25% premium of the grant date fair market value resulting in a weighted-average exercise price of $56.19 and a weighted-average grant date fair value of approximately $2.3 million. UAL did not grant any stock options in 2015. Expense related to each portion of an option grant is recognized on a straight-line basis over the specific vesting period for those options.


The Company determined the grant date fair value of stock options using a Black ScholesBlack-Scholes option pricing model, which requires the use of several assumptions. The risk-free interest rate is based on the U.S. treasury yield curve in effect for the expected term of the option at the time of grant. The dividend yield on UAL’sUAL's common stock was assumed to be zero since UAL did not have any plans to pay dividends at the time of the option grants. The volatility assumptions were based upon historical volatilities of UAL using daily stock price returns equivalent to the expected term of the option. The expected term of the options was determined based upon a simplified assumption that the option will be exercised evenly from vesting to expiration due to the Company’sCompany's lack of relevant historical data related to stock options.

As of December 31, 2017,2019, there were approximately 0.50.7 million outstanding stock option awards, 0.10.2 million of which were exercisable, with weighted-average exercise prices of $51.67$82.12 and $34.74,$56.89, respectively, intrinsic values of $8$11 million and $5$6 million, respectively, and weighted-average remaining contractual lives (in years) of 6.37.3 and 3.7, respectively.

NOTE 65 - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

("AOCI")

The tables below present the components of the Company’sCompany's AOCI, net of tax (in millions):

   Pension and
Other
Postretirement
Liabilities
  Fuel
Derivatives
Contracts
   Investments
and Other
   Deferred
Taxes
  Total 

Balance at December 31, 2014

   $(472)   $(499)    $    $(116)   $(1,079) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Other comprehensive income (loss) before reclassifications

   78 (a)   (320)    (5)    88    (159) 

Amounts reclassified from accumulated other comprehensive income

   31    604     —     (228)   407  
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Net other comprehensive income (loss)

   109    284     (5)    (140)   248  
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Balance at December 31, 2015

   $(363)   $(215)    $    $(256)   $(831) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Other comprehensive income (loss) before reclassifications

   (517)(a)   (4)    —     187    (334) 

Amounts reclassified from accumulated other comprehensive income

   26    217     (2)    95    336  
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Net other comprehensive income (loss)

   (491)   213     (2)    282     
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Balance at December 31, 2016

   $(854)   $(2)    $    $26    $(829) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Other comprehensive income (loss) before reclassifications

   (306)(a)   —     (7)    74    (239) 

Amounts reclassified from accumulated other comprehensive income

   58        —     (21)   39  

Reclassification of stranded tax effects

   —    —     —     (118)(b)   (118) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Net other comprehensive income (loss)

   (248)       (7)    (65)   (318) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Balance at December 31, 2017

   $(1,102)   $—     $(6)    $(39)(c)   $(1,147) 
  

 

 

  

 

 

   

 

 

   

 

 

  

 

 

 

Details about AOCI Components

 Amount Reclassified from AOCI to
Income
  Affected Line Item in
the Statement Where
Net Income is Presented
 
  Year Ended December 31,    
  2017   2016  2015    

Fuel derivative contracts

     

Fuel contracts-reclassifications of losses into earnings (d)

  $    $217    $604    Aircraft fuel 

Pension and Postretirement liabilities

     

Amortization of unrecognized (gains) losses and prior service cost (e)

  58     26    31    Salaries and related costs 

Investments and other

     

Available-for-sale securities—reclassifications of gains into earnings

  —     (2  —    Miscellaneous, net 

  
Pension and
Other
Postretirement
Liabilities
 Investments and Other Deferred Taxes 
 
 
Total
Balance at December 31, 2016 $(854) $(1) $26
 $(829)
Change in value (306)(a)(7) 74
 (239)
Amounts reclassified to earnings 58
 2
 (21) 39
Reclassification of stranded tax effects 
 
 (118)(b)(118)
Balance at December 31, 2017 (1,102) (6) (39) (1,147)
Change in value 377
(a)(5) (83) 289
Amounts reclassified to earnings 62
 
 (13) 49
Amounts reclassified to retained earnings ("RE") 
 7
(c)(1)(c)6
Balance at December 31, 2018 (663) (4) (136)
(803)
Change in value 105
(a)7
 (24) 88
Amounts reclassified to earnings (2) (1) 
 (3)
Balance at December 31, 2019 $(560) $2
 $(160) $(718)

(a) Prior service credits increased by $0 million, $30 millionThis AOCI component is included in the computation of net periodic pension and $0 millionother postretirement costs. See Note 7 of this report for additional information on pensions and actuarial losses increased by approximately $306 million, $560 million and $78 million for 2017, 2016 and 2015, respectively.

other postretirement liabilities.

(b) This amount represents the reclassification from AOCI to RE of the stranded tax effects resulting from the enactment of the Tax Act.

Cuts and Jobs Act (the "Tax Act").

(c) Deferred tax balance relates mainlyThese amounts represent the reclassification from AOCI to Pension and Other Postretirement Liabilities.

(d) The lastRE of the Company’s fuel hedge derivatives designated for cash flow hedge accounting expiredunrealized loss, and related tax, on the Company's investment in December 2016. The 2017 amount reclassified from AOCI into fuel expense represents hedge losses on December 2016 settled trades, but forAzul Linhas Aéreas Brasileiras S.A. ("Azul") which the associated fuel purchased in December 2016 was not consumed until January 2017. The Company’s current strategy isclassified as an available-for-sale security prior to not enter into transactions to hedge its fuel consumption, although the Company regularly reviews its strategy based on market conditions and other factors.

(e) This AOCI component is included in the computation of net periodic pension and other postretirement costs (see Note 8 of this report for additional information).

Prior to the release of the deferred income tax valuation allowance in the third quarter of 2015, the Company recorded approximately $465 million of valuation allowance adjustments in AOCI. Subsequent to the release of the deferred income tax valuation allowance in 2015, the $465 million debit remained within AOCI, of which $180 million related to losses on fuel hedges designated for hedge accounting and $285 million related to pension and other postretirement liabilities.adopting Accounting rules required the adjustments to remain in AOCI as long as the Company had fuel derivatives designated for cash flow hedge accounting and the Company continues to provide pension and postretirement benefits. In 2016, the Company settled all of its fuel hedges and has not entered into any new fuel derivative contracts for hedge accounting. Accordingly, the Company reclassified the $180 million to income tax expense in 2016.

Standards Update No. 2016-01, Financial Instruments—Overall (Subtopic 825-10) effective January 1, 2018.



NOTE 76 - INCOME TAXES


The income tax provision (benefit) differed from amounts computed at the statutory federal income tax rate and consisted of the following significant components as follows (in millions):

UAL

 2017  2016  2015 

Income tax provision at statutory rate

  $1,050    $1,337    $1,477  

State income taxes, net of federal income tax benefit

  29    38    38  

Foreign tax rate differential

  (43)   —    —  

Foreign income taxes

         

Nondeductible employee meals

  17    16    15  

Impact of Tax Act

  (192)   —    —  

Income tax adjustment from AOCI

  —    180    —  

State rate change

  12    (12)   —  

Valuation allowance

  (16)   20    (4,662) 

Other, net

     (26)    
 

 

 

  

 

 

  

 

 

 
  $868    $1,556    $(3,121) 
 

 

 

  

 

 

  

 

 

 

Current

  $(77)   $(92)   $56  

Deferred

  945    1,648    (3,177) 
 

 

 

  

 

 

  

 

 

 
  $868    $1,556    $(3,121) 
 

 

 

  

 

 

  

 

 

 

United

 2017  2016  2015 

Income tax provision at statutory rate

  $1,051    $1,338    $1,477  

State income taxes, net of federal income tax

  29    38    38  

Foreign tax rate differential

  (43)   —    —  

Foreign income taxes

         

Nondeductible employee meals

  17    16    15  

Impact of Tax Act

  (209)   —    —  

Income tax adjustment from AOCI

  —    180    —  

State rate change

  12    (12)   —  

Valuation allowance

  (16)   20    (4,621) 

Other, net

     (25)    
 

 

 

  

 

 

  

 

 

 
  $852    $1,558    $(3,080) 
 

 

 

  

 

 

  

 

 

 

Current

  $(77)   $(92)   $56  

Deferred

  929    1,650    (3,136) 
 

 

 

  

 

 

  

 

 

 
  $852    $1,558    $(3,080) 
 

 

 

  

 

 

  

 

 

 

UAL 2019 2018 (a) 2017 (a)
Income tax provision at statutory rate $822
 $556
 $1,058
State income taxes, net of federal income tax benefit 50
 29
 30
Foreign tax rate differential (90) (84) (43)
Global intangible low-taxed income 90
 4
 
Foreign income taxes 1
 2
 3
Nondeductible employee meals 12
 12
 17
Impact of Tax Act 
 (5) (189)
State rate change 
 3
 12
Valuation allowance (4) (3) (16)
Other, net 24
 12
 8
  $905
 $526
 $880
       
Current $23
 $14
 $(77)
Deferred 882
 512
 957
  $905
 $526
 $880
       
United 2019 2018 (a) 2017 (a)
Income tax provision at statutory rate $822
 $557
 $1,059
State income taxes, net of federal income tax 50
 29
 30
Foreign tax rate differential (90) (84) (43)
Global intangible low-taxed income 90
 4
 
Foreign income taxes 1
 2
 3
Nondeductible employee meals 12
 12
 17
Impact of Tax Act 
 (5) (206)
State rate change 
 3
 12
Valuation allowance (4) (3) (16)
Other, net 24
 12
 8
  $905
 $527
 $864
       
Current $23
 $14
 $(77)
Deferred 882
 513
 941
  $905
 $527
 $864
(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 of this report for additional information on the adjustments.
The Company’sCompany's effective tax rate for the year ended December 31, 20172019 differed from the federal statutory rate of 35% primarily because21% due to a blend of federal, state and foreign taxes as well as the provisionalone-timeimpact of certain nondeductible items.
On December 22, 2017, Congress enacted the Tax Act, which made significant changes to U.S. federal income tax benefitlaws, including reducing the corporate rate from 35% to 21% effective January 1, 2018. The Tax Act included a Global Intangible Low-Taxed Income ("GILTI") provision which introduced a new tax on foreign income in excess of $192 million as a resultdeemed return on tangible business property of the enactmentforeign subsidiaries. The GILTI provisions of the Tax Act. This provisional benefit isAct became effective for the result ofCompany during 2018 and we elected to account for it in the remeasurement of deferred tax assets and liabilities, partially offset by a write-down ofperiod incurred (the "period cost method"). The increase in the employee benefit deferred tax asset for futurenon-deductible compensation, and aone-time transition tax on foreign earnings and profits. The Company’s effective tax rateGILTI for the year ended December 31, 2016 differed2019 is due to a full-year inclusion in 2019 as compared to a partial-year inclusion in 2018.

Additionally, the Company did not satisfy the minimum taxable income requirement to benefit from the federal statutory rate of

35% primarily because of thenon-cash income tax expense of $180 million that was related to losses on fuel derivatives designated for hedge accounting. Subsequent to the release of the valuation allowance in 2015, this deferred income tax expense of $180 million remained in AOCI until all fuel derivatives were settled in December 2016.

Total income tax expense in 2017 includes the provisionalone-time transition tax of $19 million on previously deferred foreign earnings. The undistributed cumulative earnings of foreign subsidiaries contributing to theone-time transition tax were $122 million. The Company expects to repatriate these earnings in 2018.

As of December 31, 2017, we had not completed our analysis of all aspects of50% GILTI deduction provided by the Tax Act. However, we have made a provisional estimate for its effect on our existing deferred tax balances and theone-time transition tax. We remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. We are still analyzing certain aspects of the Tax Act and refining our calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts.

Temporary differences and carryforwards that give rise to deferred tax assets and liabilities at December 31, 20172019 and 20162018 were as follows (in millions):

  UAL  United 
  2017  2016  2017  2016 

Deferred income tax asset (liability):

    

Federal and state net operating loss (“NOL”) carryforwards

  $601    $1,613    $574    $1,571  

Deferred revenue

  1,069    2,096    1,069    2,096  

Employee benefits, including pension, postretirement and medical

  1,051    1,662    1,051    1,662  

Alternative minimum tax credit carryforwards

  —    116    —    116  

Other

  351    523    351    522  

Less: Valuation allowance

  (63)   (68)   (63)   (68) 
 

 

 

  

 

 

  

 

 

  

 

 

 

Total deferred tax assets

  $   3,009    $5,942    $2,982    $5,899  
 

 

 

  

 

 

  

 

 

  

 

 

 

Depreciation

  $(2,431)   $(3,961)   $(2,431)   $(3,961) 

Intangibles

  (803)   (1,326)   (803)   (1,326) 
 

 

 

  

 

 

  

 

 

  

 

 

 

Total deferred tax liabilities

  $(3,234)   $(5,287)   $(3,234)   $(5,287) 
 

 

 

  

 

 

  

 

 

  

 

 

 

Net deferred tax asset (liability)

  $(225)   $655    $(252)   $612  
 

 

 

  

 

 

  

 

 

  

 

 

 

  UAL United
  2019 2018 2019 2018
Deferred income tax asset (liability):        
Federal and state net operating loss ("NOL") carryforwards $695
 $398
 $668
 $371
Deferred revenue 1,287
 1,232
 1,287
 1,232
Employee benefits, including pension, postretirement and medical 715
 885
 715
 885
Operating lease liabilities 1,256
 1,338
 1,256
 1,338
Other 165
 229
 165
 229
Less: Valuation allowance (58) (59) (58) (59)
Total deferred tax assets $4,060
 $4,023
 $4,033
 $3,996
         
Depreciation $(4,011) $(2,929) $(4,011) $(2,929)
Operating lease right-of-use asset (1,061) (1,173) (1,061) (1,173)
Intangibles (724) (749) (724) (749)
Total deferred tax liabilities $(5,796) $(4,851) $(5,796) $(4,851)
Net deferred tax liability $(1,736) $(828) $(1,763) $(855)

United and its domestic consolidated subsidiaries file a consolidated federal income tax return with UAL. Under an intercompany tax allocation policy, United and its subsidiaries compute, record and pay UAL for their own tax liability as if they were separate companies filing separate returns. In determining their own tax liabilities, United and each of its subsidiaries take into account all tax credits or benefits generated and utilized as separate companies and they are each compensated for the aforementioned tax benefits only if they would be able to use those benefits on a separate company basis.

The Company’sCompany's federal and state NOL carryforwards relate to prior years’years' NOLs, which may be used to reduce tax liabilities in future years. These tax benefits are mostly attributable to federalpre-tax NOL carryforwards of $2.4$3.0 billion for UAL. If not utilized these federalpre-tax NOLs will expire as follows (in billions): $0.2$0.7 billion in 2026,2030, $0.5 billion in 20282033, and $1.7 thereafter.$0.5 billion in 2034. The remaining $1.3 billion of NOLs has no expiration date. In addition, for UAL the majority of tax benefits of the state NOLs of $49$100 million net of a valuation allowance of $52 million, will expire over a five to20-year twenty year period.

The Company periodically assesses whether it is more likely than not that it will generate sufficient taxable income to realize its deferred income tax assets. The Company establishes valuation allowances if it is not more

likely than not that it will realize its deferred income tax assets. In making this determination, the Company considers all available positive and negative evidence and makes certain assumptions. The Company considers, among other things, projected future taxable income, scheduled reversals of deferred tax liabilities, the overall business environment, the Company’s historical financial results and tax planning strategies. In evaluating the likelihood of utilizing the Company’s net deferred income tax assets, the significant factors that the Company considers include (1) the Company’s recent history and forecasted profitability; (2) growth in the U.S. and global economies; and (3) the future impact of taxable temporary differences. In 2015, the Company concluded that its deferred income tax assets were more likely than not to be realized and released almost all of its We have recorded a $45 million valuation allowance in 2015, resulting in a $3.1 billion benefit in its provision for income taxes.

The Company has a valuation allowance of $63 million for certain state and local NOLs and credit carryforwards. The Company expects these NOLs and credits will expire unused due to limited carryforward periods. The ability to utilizeagainst these state NOLs and credits will be evaluated on a quarterly basis to determine if there are any significant events or any prudent and feasible tax planning strategies that would affect the Company’s ability to realize these deferred tax assets.

NOLs.

The Company’sCompany's unrecognized tax benefits related to uncertain tax positions were $21$53 million, $74$39 million and $24$21 million at December 31, 2017, 20162019, 2018 and 2015,2017, respectively. Included in the ending balance at December 31, 20172019 is $21$53 million that would affect the Company’sCompany's effective tax rate if recognized. The changes in unrecognized tax benefits relating to settlements with taxing authorities, unrecognized tax benefits as a result of tax positions taken during a prior period and unrecognized tax benefits relating from a lapse of the statute of limitations were immaterial during 2017, 20162019, 2018 and 2015.2017. The Company does not expect significant increases or decreases in their unrecognized tax benefits within the next 12 months.

There are no material amounts included in the balance at December 31, 20172019 for tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility.

The Company’sCompany's federal income tax returns for tax years after 20012002 remain subject to examination by the Internal Revenue Service (“IRS”(the "IRS") and state taxing jurisdictions. Currently, thereWe are no ongoing examinations of the Company’s prior year tax returns being conductedcurrently under audit by the IRS.

IRS for the 2016 and 2017 tax years.

NOTE 87 - PENSION AND OTHER POSTRETIREMENT PLANS

The following summarizes the significant pension and other postretirement plans of United:

Pension Plans

Plans.United maintains two primary defined benefit pension plans, one covering certain pilot employees and another covering certain U.S.non-pilot employees. Each of these plans provide benefits based on a combination of years of benefit accruals service and an employee’semployee's final average compensation. Additional benefit accruals are frozen under the plan covering certain pilot employees and for management and administrative employees.employees covered under the non-pilot plan. Benefit accruals for certainnon-pilot employees continue. United maintains additional defined benefit pension plans, which cover certain international employees.

Other Postretirement Plans

Plans.United maintains postretirement medical programs which provide medical benefits to certain retirees and eligible dependents, as well as life insurance benefits to certain retirees participating in the plan. Benefits provided are subject to applicable contributions,co-payments, deductibles and other limits as described in the specific plan documentation.

During 2019, United notified participants of a refresh to the plan options offered under its retiree medical benefit program. Non-HMO (health maintenance organization) medical plan options for post-Medicare retirees were converted to fully-insured Medicare Advantage plans. The plan design changes impacted all current and future eligible post-Medicare retirees, through updates in plan design and/or premium rate/contribution setting refinements. Benefit levels were not reduced as a result of this change, and in many cases the refresh resulted in reduced retiree contributions. As a result of this modification to its retiree medical plan options, the Company remeasured retiree medical benefit program liabilities using a discount rate of 3.39%. The projected benefit obligation of the retiree medical benefit program decreased by $421 million with an offset to Accumulated other comprehensive loss ($597 million in prior service credits related to the plan changes, partially offset by $176 million in actuarial losses related to the remeasurement), which will be amortized over the average years of future service to full eligibility for the participants in the retiree medical benefit program (approximately seven years).

Actuarial assumption changes are reflected as a component of the net actuarial gains/(losses)(gain)/loss during 20172019 and 2016. These amounts2018. The 2019 actuarial losses were mainly related to a decrease in the discount rate applied at December 31, 2019 compared to December 31, 2018. Actuarial gains/losses will be amortized over the average remaining service life of the covered active employees or the average life expectancy of inactive participants and will impact 2017 and 2016 pension and retiree medical expense as described below.

participants.

The following table setstables set forth the reconciliation of the beginning and ending balances of the benefit obligation and plan assets, the funded status and the amounts recognized in these financial statements for the defined benefit and other postretirement plans (in millions):

   Pension Benefits 
   Year Ended
December 31, 2017
   Year Ended
December 31, 2016
 

Accumulated benefit obligation:

   $4,739     $4,158  
  

 

 

   

 

 

 
    

Change in projected benefit obligation:

    

Projected benefit obligation at beginning of year

   $5,253     $4,473  

Service cost

   195     112  

Interest cost

   220     200  

Actuarial loss

   525     738  

Gross benefits paid and settlements

   (366)    (243) 

Other

   25     (27) 
  

 

 

   

 

 

 

Projected benefit obligation at end of year

   $5,852     $5,253  
  

 

 

   

 

 

 

Change in plan assets:

    

Fair value of plan assets at beginning of year

   $3,355     $2,975  

Actual return on plan assets

   510     230  

Employer contributions

   419     421  

Gross benefits paid and settlements

   (366)    (243) 

Other

   14     (28) 
  

 

 

   

 

 

 

Fair value of plan assets at end of year

   $3,932     $3,355  
  

 

 

   

 

 

 

Funded status—Net amount recognized

   $(1,920)    $(1,898) 
  

 

 

   

 

 

 

   Pension Benefits 
   December 31, 2017   December 31, 2016 

Amounts recognized in the consolidated balance sheets consist of:

    

Noncurrent asset

   $    $ 

Current liability

   (8)    (8) 

Noncurrent liability

   (1,921)    (1,892) 
  

 

 

   

 

 

 

Total liability

   $(1,920)    $(1,898) 
  

 

 

   

 

 

 

Amounts recognized in accumulated other comprehensive loss consist of:

    

Net actuarial loss

   $(1,610)    $(1,482) 

Prior service cost

   (1)    (1) 
  

 

 

   

 

 

 

Total accumulated other comprehensive loss

   $(1,611)    $(1,483) 
  

 

 

   

 

 

 
 Pension Benefits
 Year Ended December 31, 2019 Year Ended December 31, 2018
Accumulated benefit obligation:$5,333
 $4,448
    
Change in projected benefit obligation:   
Projected benefit obligation at beginning of year$5,396
 $5,852
Service cost184
 228
Interest cost226
 217
Actuarial (gain) loss784
 (601)
Gross benefits paid and settlements(200) (292)
Other8
 (8)
Projected benefit obligation at end of year$6,398
 $5,396
    
Change in plan assets:   
Fair value of plan assets at beginning of year$3,827
 $3,932
Actual (loss) return on plan assets684
 (215)
Employer contributions649
 413
Gross benefits paid and settlements(200) (292)
Other4
 (11)
Fair value of plan assets at end of year$4,964
 $3,827
Funded status—Net amount recognized$(1,434) $(1,569)


   Other Postretirement Benefits 
   Year Ended
December 31, 2017
   Year Ended
December 31, 2016
 

Change in benefit obligation:

    

Benefit obligation at beginning of year

   $1,687     $2,002  

Service cost

   13     19  

Interest cost

   66     86  

Plan participants’ contributions

   68     69  

Benefits paid

   (178)    (191) 

Actuarial loss (gain)

   40     (165) 

Plan amendments

   —     (138) 

Other

   14      
  

 

 

   

 

 

 

Benefit obligation at end of year

   $1,710     $1,687  
  

 

 

   

 

 

 

Change in plan assets:

    

Fair value of plan assets at beginning of year

   $55     $56  

Actual return on plan assets

        

Employer contributions

   108     119  

Plan participants’ contributions

   68     69  

Benefits paid

   (178)    (191) 
  

 

 

   

 

 

 

Fair value of plan assets at end of year

   54     55  
  

 

 

   

 

 

 

Funded status—Net amount recognized

   $(1,656)    $(1,632) 
  

 

 

   

 

 

 

  Other Postretirement Benefits 
  December 31, 2017  December 31, 2016 

Amounts recognized in the consolidated balance sheets consist of:

  

Current liability

  $(54)   $(51) 

Noncurrent liability

  (1,602)   (1,581) 
 

 

 

  

 

 

 

Total liability

  $(1,656)   $(1,632) 
 

 

 

  

 

 

 

Amounts recognized in accumulated other comprehensive income consist of:

  

Net actuarial gain

  $301    $384  

Prior service credit

  208    245  
 

 

 

  

 

 

 

Total accumulated other comprehensive income

  $509    $629  
 

 

 

  

 

 

 


 Pension Benefits
 December 31, 2019 December 31, 2018
Amounts recognized in the consolidated balance sheets consist of:   
Noncurrent asset$14
 $13
Current liability(2) (6)
Noncurrent liability(1,446) (1,576)
Total liability$(1,434) $(1,569)
    
Amounts recognized in accumulated other comprehensive loss consist of:   
Net actuarial loss$(1,652) $(1,382)
Prior service cost(4) (5)
Total accumulated other comprehensive loss$(1,656) $(1,387)
    
 Other Postretirement Benefits
 Year Ended December 31, 2019 Year Ended December 31, 2018
Change in benefit obligation:   
Benefit obligation at beginning of year$1,391
 $1,710
Service cost10
 12
Interest cost47
 61
Plan participants' contributions67
 68
Benefits paid(180) (181)
Actuarial loss (gain)99
 (285)
Plan amendments(597) 
Other5
 6
Benefit obligation at end of year$842
 $1,391
    
Change in plan assets:   
Fair value of plan assets at beginning of year$53
 $54
Actual return on plan assets1
 1
Employer contributions111
 111
Plan participants' contributions67
 68
Benefits paid(180) (181)
Fair value of plan assets at end of year52
 53
Funded status—Net amount recognized$(790) $(1,338)

 Other Postretirement Benefits
 December 31, 2019 December 31, 2018
Amounts recognized in the consolidated balance sheets consist of:   
Current liability$(1) $(43)
Noncurrent liability(789) (1,295)
Total liability$(790) $(1,338)
Amounts recognized in accumulated other comprehensive income consist of:   
Net actuarial gain$403
 $554
Prior service credit693
 170
Total accumulated other comprehensive income$1,096
 $724


The following information relates to all pension plans with an accumulated benefit obligation and a projected benefit obligation in excess of plan assets at December 31 (in millions):

       2017           2016     

Projected benefit obligation

   $5,637     $5,025  

Accumulated benefit obligation

   4,567     3,985  

Fair value of plan assets

   3,709     3,164  

 2019 2018
Projected benefit obligation$6,161
 $5,196
Accumulated benefit obligation5,137
 4,286
Fair value of plan assets4,714
 3,614

Net periodic benefit cost for the years ended December 31 included the following components (in millions):

   2017   2016   2015 
   Pension
Benefits
   Other
Postretirement
Benefits
   Pension
Benefits
   Other
Postretirement
Benefits
   Pension
Benefits
   Other
Postretirement
Benefits
 

Service cost

   $195     $13     $112     $19     $124     $21  

Interest cost

   220     66     200     86     200     82  

Expected return on plan assets

   (243)    (2)    (216)    (2)    (194)    (2) 

Curtailment gain

   —     —     —     (107)    —     —  
Amortization of unrecognized actuarial (gain) loss   128     (33)    76     (19)    85     (22) 
Amortization of prior service credits   —     (37)    —      (31)    —     (32) 

Other

       —         —         —  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net periodic benefit cost (credit)

   $305     $    $177     $(54)    $219     $47  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

See Note 14 of this report for additional information related to the curtailment gain

 2019 2018 2017
 Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits
Service cost$184
 $10
 $228
 $12
 $195
 $13
Interest cost226
 47
 217
 61
 220
 66
Expected return on plan assets(291) (1) (292) (2) (243) (2)
Amortization of unrecognized actuarial (gain) loss118
 (52) 130
 (32) 128
 (33)
Amortization of prior service credits
 (73) 
 (37) 
 (37)
Other5
 
 1
 
 5
 
Net periodic benefit cost (credit)$242
 $(69) $284
 $2
 $305
 $7

Service cost is recorded in 2016.

The estimated amounts that will be amortized in 2018 outSalaries and related costs on the statement of accumulatedconsolidated operations. All other comprehensive income (loss) intocomponents of net periodic benefit costcosts are as follows (in millions):

   Pension
Benefits
   Other
Postretirement
Benefits
 

Actuarial (gain) loss

  $132   $(32) 

Prior service (credit) cost

   —     (37) 

recorded in Miscellaneous, net on the statement of consolidated operations.

The assumptions used for the benefit plans were as follows:

 

      Pension Benefits     

Assumptions used to determine benefit obligations

      2017           2016     

Discount rate

  3.65%   4.18% 

Rate of compensation increase

  3.89%   3.54% 
  

Assumptions used to determine net expense

  

Discount rate

  4.19%   4.58% 

Expected return on plan assets

  7.02%   7.04% 

Rate of compensation increase

  3.54%   3.53% 

 

  Other Postretirement Benefits 

Assumptions used to determine benefit obligations

      2017           2016     

Discount rate

   3.63%    4.07% 
    

Assumptions used to determine net expense

    

Discount rate

   4.07%    4.49% 

Expected return on plan assets

   3.00%    3.00% 

Health care cost trend rate assumed for next year

   6.25%    6.50% 

Rate to which the cost trend rate is assumed to decline (ultimate trend rate in 2023)

   5.00%    5.00% 

  Pension Benefits
Assumptions used to determine benefit obligations 2019 2018
Discount rate 3.52% 4.20%
Rate of compensation increase 3.89% 3.89%
     
Assumptions used to determine net expense  
Discount rate 4.21% 3.65%
Expected return on plan assets 7.40% 7.31%
Rate of compensation increase 3.89% 3.89%

A 50 basis points decrease in the weighted average discount rate would have increased the Company's December 31, 2019 pension benefit liability by approximately $0.7 billion and increased the estimated 2019 pension benefit expense by approximately $69 million.
  Other Postretirement Benefits
Assumptions used to determine benefit obligations 2019 2018
Discount rate 3.35% 4.30%
     
Assumptions used to determine net expense    
Discount rate 4.30% 3.63%
Expected return on plan assets 3.00% 3.00%
Health care cost trend rate assumed for next year 6.00% 6.00%
Rate to which the cost trend rate is assumed to decline (ultimate trend rate in 2033) 5.00% 5.00%

A 50 basis points decrease in the weighted average discount rate would have increased the Company's December 31, 2019 postretirement benefit liability by approximately $42 million and increased the estimated 2019 benefits expense by approximately $4 million.

The Company used the Society of Actuaries’ 2014 mortality tables,Actuaries' PRI-2012 Private Retirement Plans Mortality Tables projected generationally using the Society of Actuaries' MP-2019 projection scale, modified to reflect the Social Security Administration Trustee’sTrustee's Report on current projections regarding expected longevity improvements.

The Company selected the 20172019 discount rate for substantially all of its plans by using a hypothetical portfolio of high qualityhigh-quality bonds at December 31, 2017,2019, that would provide the necessary cash flows to match projected benefit payments.

We develop our expected long-term rate of return assumption for our defined benefit plans based on historical experience and by evaluating input from the trustee managing the plans’plans' assets.Our expected long-term rate of return on plan assets for these plans is based on a target allocation of assets, which is based on our goal of earning the highest rate of return while maintaining risk at acceptable levels. The plans strive to have assets sufficiently diversified so that adverse or unexpected results from one security class will not have an unduly detrimental impact on the entire portfolio. Plan fiduciaries regularly review our actual asset allocation and the pension plans’plans' investments are periodically rebalanced to our targeted allocation when considered appropriate. United’sUnited's plan assets are allocated within the following guidelines:

  

Percent of Total

Expected Long-Term
Rate of Return
Equity securities30-45%10%
Fixed-income securities35-50  

Expected Long-Term

Rate of Return

5
 
Alternatives

Equity securities

15-25
         27-42    %       9.5    %

Fixed-income securities

       30-40              5.5       

Alternatives

       10-25              7.3       

Other

         0-10              7.3       7 

One-hundred percent of other postretirement plan assets are invested in a deposit administration fund.

Assumed health care cost trend rates have a significant effect on the amounts reported for the other postretirement plans.


A 1% change in the assumed health care trend rate for the Company would have the following additional effects (in millions):

   1% Increase   1% Decrease 

Effect on total service and interest cost for the year ended December 31, 2017

   $11     $(8) 

Effect on postretirement benefit obligation at December 31, 2017

   170     (149) 

A one percentage point50 basis points decrease in the weighted average discountexpected long-term rate of return on plan assets would increase the Company’s postretirement benefit liability by approximately $185 million and increase thehave increased estimated 2017 benefits2019 pension expense by approximately $8$20 million.

Fair Value Information. Accounting standards require us to use valuation techniques to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are prioritized as follows:

Level 1

Unadjusted quoted prices in active markets for assets or liabilities identical to those to be reported at fair value

Level 2

Other inputs that are observable directly or indirectly, such as quoted prices for similar assets or liabilities or market-corroborated inputs

Level 3

Unobservable inputs for which there is little or no market data and which require us to develop our own assumptions about how market participants would price the assets or liabilities


Assets and liabilities measured at fair value are based on the valuation techniques identified in the tables below. The valuation techniques are as follows:


(a)Market approach.Prices and other relevant information generated by market transactions involving identical or comparable assets and liabilities; and


(b)Income approach. Techniques to convert future amounts to a single current value based on market expectations (including present value techniques, option-pricing and excess earnings models).


The following tables present information about United’sUnited's pension and other postretirement plan assets at December 31, (in millions):

  2017     2016 
Pension Plan Assets: Total  Level 1  Level 2  Level 3  Assets
Measured
at NAV(a)
     Total  Level 1  Level 2  Level 3  Assets
Measured
at NAV(a)
 

Equity securities funds

 $1,406  $269  $133  $  $1,004    $1,173  $230  $111  $  $832 

Fixed-income securities

  1,470      834   18   618     1,298      824   11   463 

Alternatives

  637         139   498     586         134   452 

Other investments

  419   32   124   172   91     298   47   68   87   96 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

    

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total

 $3,932  $301  $1,091  $329  $2,211    $3,355  $277  $1,003  $232  $1,843 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

    

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 
Other Postretirement Benefit Plan Assets:            
Deposit administration fund $54  $  $  $54  $    $55  $  $  $55  $ 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

    

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 


  2019  2018
Pension Plan Assets: Total Level 1 Level 2 Level 3 Assets Measured at NAV(a)  Total Level 1 Level 2 Level 3 Assets Measured at NAV(a)
Equity securities funds $1,957
 $47
 $117
 $71
 $1,722
  $1,457
 $254
 $106
 $63
 $1,034
Fixed-income securities 1,732
 
 687
 69
 976
  1,520
 
 628
 87
 805
Alternatives 776
 
 
 205
 571
  596
 
 
 134
 462
Other investments 499
 466
 21
 12
 
  254
 224
 17
 13
 
Total $4,964
 $513
 $825
 $357
 $3,269
  $3,827
 $478
 $751
 $297
 $2,301
Other Postretirement Benefit Plan Assets:                     
Deposit administration fund $52
 $
 $
 $52
 $
  $53
 $
 $
 $53
 $
(a) In accordance with the relevant accounting standards, certain investments that are measured at fair value using the net asset value (“NAV”("NAV") per share (or its equivalent) have not been classified in the fair value hierarchy. These investments are commingled funds that invest in fixed-income instruments including bonds, debt securities, and other similar instruments issued by various U.S. andnon-U.S. public- or private-sector entities. Redemption periods for these investments range from daily to annually.

semiannually.

Equity and Fixed-Income.Equities include investments in both developed market and emerging market equity securities. Fixed-income includes primarily U.S. andnon-U.S. government fixed-income securities and U.S. andnon-U.S non-U.S. corporate fixed-income securities.

Deposit Administration Fund.This investment is a stable value investment product structured to provide investment income.

Alternatives.Alternative investments consist primarily of investments in hedge funds, real estate and private equity interests.

Other investments.Other investments consist of primarily cash, as well as insurance contracts and other funds.

contracts.

The reconciliation of United’s definedUnited's benefit plan assets measured at fair value using unobservable inputs (Level 3) for the years ended December 31, 20172019 and 20162018 is as follows (in millions):

   2017   2016 

Balance at beginning of year

   $  287     $  208   

Actual return on plan assets:

    

Sold during the year

       4   

Held at year end

   16     3   

Purchases, sales, issuances and settlements (net)

   73     72   
  

 

 

   

 

 

 

Balance at end of year

   $  383     $  287   
  

 

 

   

 

 

 

 2019 2018
Balance at beginning of year$350
 $383
Actual return (loss) on plan assets:   
Sold during the year12
 10
Held at year end(1) (21)
Purchases, sales, issuances and settlements (net)48
 (22)
Balance at end of year$409
 $350

Funding requirements fortax-qualified defined benefit pension plans are determined by government regulations. United’sUnited's contributions reflected above have satisfied its required contributions through the 20172019 calendar year. In 2018,2020, employer anticipated contributions to all of United’sUnited's pension and postretirement plans are at least $420$314 million and approximately $109$47 million, respectively.

The estimated future benefit payments, net of expected participant contributions, in United’sUnited's pension plans and other postretirement benefit plans as of December 31, 20172019 are as follows (in millions):

       Pension       Other
    Postretirement    
    Other Postretirement— 
subsidy receipts
 

2018

   $305      $113      $6   

2019

   326      118      6   

2020

   331      121      6   

2021

   357      124      7   

2022

   369      126      7   

Years 2023 – 2027

   1,912      646      43   

 Pension Other Postretirement
2020$361
 $53
2021386
 56
2022399
 59
2023410
 62
2024399
 64
Years 2025 – 20292,219
 328



Defined Contribution Plans

Plans.Depending upon the employee group, employer contributions consist of matching contributions and/ornon-elective employer contributions. United’sUnited's employer contribution percentages vary from 1% to 16% of eligible earnings depending on the terms of each plan. United recorded contributions toexpenses for its defined contribution plans of $656$735 million, $592$693 million and $522$656 million in the years ended December 31, 2019, 2018 and 2017, 2016 and 2015, respectively.

Multi-Employer Plans

United’sPlans.United's participation in the IAM National Pension Plan (“("IAM Plan”Plan") for the annual period ended December 31, 20172019 is outlined in the table below. ThereExcept as described in table below, there have been no significantother changes that affect the comparability of 20172019 and 20162018 contributions. The risks of participating in these multi-employer plans are different from single-employer plans, as United may be subject to additional risks that others do not meet their obligations, which in certain circumstances could revert to United. The IAM Plan reported $414$467 million in employers’employers' contributions for the year ended December 31, 2016.2018. For 2016,2018, the Company’sCompany's contributions to the IAM Plan represented more than 5% of total contributions to the IAM Plan.

The 2019 information is not available as Form 5500 is not final for the plan year.

Pension Fund

IAM National Pension Fund

EIN/ Pension Plan Number

51-6031295 - 002

Pension Protection Act Zone Status (2017(2019 and 2016)

2018)
Red Zone (2019) and Green Zone.Zone (2018). Plans in the green zoneGreen Zone are at least 80 percent funded. Plans in the Red Zone are less than 65% funded. The IAM National Pension Fund Board of Trustees voluntarily elected to place the fund in the Red Zone for 2019, although the fund was over 80% funded at the time, to protect the fund's participants' core retirement benefits and strengthen the fund's financial health over the long term.

FIP/RP Status Pending/Implemented

NoA 10-year Rehabilitation Plan effective, January 1, 2022, was adopted on April 17, 2019 that requires the Company to make an additional contribution of 2.5% of the hourly contribution rate, compounded annually for the length of the Rehabilitation Plan, effective June 1, 2019.

United’sUnited's Contributions

$5059 million, $41$52 million and $40$50 million in the years ended December 31, 2017, 20162019, 2018 and 2015,2017, respectively

Surcharge Imposed

No

Expiration Date of Collective Bargaining Agreement

N/A

At the date the Consolidated Financial Statements were issued, Forms 5500 were not available for the plan year ending in 2017.


Profit Sharing

Sharing. Substantially all employees participate in profit sharing based on a percentage ofpre-tax earnings, excluding special charges, profit sharing expense and share-based compensation. Profit sharing percentages range from 5% to 20% depending on the work group, and in some cases profit sharing percentages vary above and below certainpre-tax margin thresholds. Eligible U.S.co-workers in each participating work group receive a profit sharing payout using a formula based on the ratio of each qualifiedco-worker’s co-worker's annual eligible earnings to the eligible earnings of all qualifiedco-workers in all domestic work groups. Eligiblenon-U.S.co-workers non-U.S. co-workers receive profit sharing based on the calculation under the U.S. profit sharing plan for management and administrative employees. The Company recorded profit sharing and related payroll tax expense of $491 million, $334 million and $349 million $628 millionin 2019, 2018 and $698 million in 2017, 2016 and 2015, respectively. Profit sharing expense is recorded as a component of Salaries and related costs in the Company’sCompany's statements of consolidated operations.


NOTE 8 - NOTES RECEIVABLE
BRW Term Loan. In November 2018, United, as lender, entered into a Term Loan Agreement (the "BRW Term Loan Agreement") with, among others, BRW Aviation Holding LLC and BRW Aviation LLC ("BRW"), as guarantor and borrower, respectively, BRW Aviation Holding LLC and BRW are affiliates of Synergy Aerospace Corporation ("Synergy"), and BRW is the majority shareholder of Avianca Holdings S.A. ("AVH"). Pursuant to the BRW Term Loan Agreement, United provided to BRW a $456 million term loan (the "BRW Term Loan"), secured by a pledge of BRW's equity, as well as BRW's 516 million common shares of AVH (which are eligible to be converted into the same number of preferred shares, which may be deposited with the depositary for AVH's American Depositary Receipts ("ADRs"), the class of AVH securities that trades on the New York Stock Exchange (the "NYSE"), in exchange for 64.5 million ADRs) (such equity and shares, collectively, the "BRW Loan Collateral"). BRW is currently in default under the BRW Term Loan Agreement.
In order to protect the value of its collateral, on May 24, 2019, United began to exercise certain remedies available to it under the terms of the BRW Term Loan Agreement and related documents. In connection with the delivery by United of a notice of default to BRW, Kingsland Holdings Limited ("Kingsland"), AVH's largest minority shareholder, was granted, in accordance with the agreements related to the BRW Term Loan Agreement, authority to manage BRW, which remains the majority shareholder of AVH. In addition, Kingsland is pursuing a foreclosure process which is expected to result in a judicially supervised sale of the BRW Loan Collateral.
United evaluated the $499 million carrying value of the BRW Term Loan as of December 31, 2019 using the fair value of the BRW Loan Collateral and determined that the value of the BRW Loan Collateral is sufficient to recover the carrying value of the BRW Term Loan. As a result, the Company concluded that the BRW Term Loan is not impaired. The carrying value of the BRW Term Loan represents the original loan amount plus accrued and unpaid interest and certain expenses associated with the loan origination.
The fair market value of AVH equity was estimated using an income approach and a market approach with equal weight applied to each approach. Under the income approach, the value was estimated by discounting expected future cash flows at a weighted average cost of capital to a single present value amount. Under the market approach, the value was estimated by reference to multiples of enterprise value to earnings before interest, taxes, depreciation, amortization and rent ("EBITDAR") for a group of publicly-traded market comparable companies, along with AVH's own EBITDAR levels.

Avianca Loan. In November 2019, United entered into a senior secured convertible term loan agreement (the "AVH Convertible Loan Agreement") with, among others, AVH, as borrower, for the provision by the lenders thereunder (including United) to AVH of convertible term loans for general corporate purposes. In December 2019, United provided such a convertible term loan to AVH under the AVH Convertible Loan Agreement in the aggregate amount of $150 million (the "AVH Convertible Loan"). The AVH Convertible Loan (1) is payable in a single installment in December 2023, (2) bears paid-in-kind interest at a rate of 3 percent per annum ("PIK Interest") and (3) is secured by a pledge of capital stock in AVH's major subsidiaries and, until released, certain Colombian Peso-denominated credit card receivables owing to Aerovias del Continente Americano S.A. ("Avianca"), a subsidiary of AVH and guarantor under the AVH Convertible Loan Agreement. United has the option to convert the AVH Convertible Loan, in minimum $5 million principal increments, into equity of AVH at a conversion price of $4.6217 per one American Depositary Share (as evidenced by an ADR) or eight AVH shares. Following the occurrence of a change of control of AVH, the conversion price will be reduced to $4.1595 per ADR. Additionally, AVH may, on or after the day occurring 360 days after the funding date of the AVH Convertible Loan, require that United convert 100% of the outstanding principal amount (including capitalized PIK Interest) of the AVH Convertible Loan, together with accrued cash interest thereon, into AVH shares, if certain conditions are satisfied, including conditions corresponding to a minimum volume-weighted average market price of AVH ADRs and a minimum AVH average cash balance. As of December 31, 2019, the fair value of the AVH Convertible Loan approximated its carrying value.





NOTE 9 - INVESTMENTS AND FAIR VALUE MEASUREMENTS AND INVESTMENTS

Fair Value Information. Accounting standards require us to use valuation techniques to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are described in Note 87 of this report. The table below presents disclosures about the fair value of financial assets and liabilities measured at fair value on a recurring basis in the Company’sCompany's financial statements as of December 31 (in millions):

   2017   2016 
   Total   Level 1   Level 2   Level 3   Total   Level 1   Level 2   Level 3 

Cash and cash equivalents

   $    1,482     $    1,482     $—     $—     $    2,179     $    2,179     $—     $—  

Short-term investments:

                

Corporate debt

   958     —     958     —     835     —     835     —  

Asset-backed securities

   753     —     753     —     792     —     792     —  

Certificates of deposit placed through an account registry service (“CDARS”)

   120     —     120     —     246     —     246     —  

U.S. government and agency notes

   113     —     113     —     140     —     140     —  

Other fixed-income securities

   188     —     188     —     54     —     54     —  

Other investments measured at NAV

   184     —     —     —     182     —     —     —  

Restricted cash

   109     109     —     —     124     124     —     —  

Long-term investments:

                

Equity securities

   99     99     —     —     —     —     —     —  

Enhanced equipment trust certificates (“EETC”)

   22     —     —     22     23     —     —     23  

 2019 2018
 Total Level 1
 Level 2
 Level 3
 Total Level 1
 Level 2
 Level 3
Cash and cash equivalents$2,762
 $2,762
 $
 $
 $1,694
 $1,694
 $
 $
Short-term investments:               
Corporate debt1,045
 
 1,045
 
 1,023
 
 1,023
 
Asset-backed securities690
 
 690
 
 746
 
 746
 
U.S. government and agency notes124
 
 124
 
 108
 
 108
 
Certificates of deposit placed through an account registry service ("CDARS")35
 
 35
 
 75
 
 75
 
Other fixed-income securities95
 
 95
 
 116
 
 116
 
Other investments measured at NAV193
 
 
 
 188
 
 
 
Restricted cash106
 106
 
 
 105
 105
 
 
Long-term investments:
              
Equity securities385
 385
 
 
 249
 249
 
 
AVH Derivative Assets24
 
 
 24
 11
 
 
 11

Available-for-sale investment maturities—The - The short-term investments shown in the table above are classified asavailable-for-sale. available-for-sale, with the exception of investments measured at NAV. As of December 31, 2017,2019, asset-backed securities have remaining maturities of less than one year to approximately 1715 years, corporate debt securities have remaining maturities of less than one year to approximately three years or less and CDARS have maturities of less than one year. U.S. government and agency notes have maturities of approximately three years or less and other fixed-income securities have maturities of less than one year to approximately three years. The EETC securities mature in 2019.

two years or less.

Restricted cash - Restricted cash primarily includes cash collateral for letters of credit and collateral associated with obligations for facility leases and workers’ compensation.

other insurance-related obligations.

Equity securities - Equity securities represent United’sUnited's investment in Azul, Linhas Aereas Brasileiras S.A. (“Azul”), which was previously accounted for as a cost-method investment.consisting of approximately 8% of Azul's outstanding preferred shares (representing approximately 2% of the total capital stock of Azul). The Company recognizes changes to the fair value of Azul’sits equity investment in Azul in Unrealized gains (losses) on investments, net in its statements of consolidated operations. The carrying value of our investment in Azul was $385 million at December 31, 2019.
AVH Derivative Assets - As part of the BRW Term Loan Agreement and related agreements with Kingsland, United obtainedcall options on AVH shares, became readily determinableAVH share appreciation rights and an AVH share-based upside sharing agreement (collectively, the "AVH Derivative Assets"). The AVH Derivative Assets are recorded at fair value as Other assets on the Company's balance sheet and are included in the second quartertable above. Changes in the fair value of 2017 uponthe AVH Derivative Assets are recorded as part of Unrealized gains (losses) on investments, net in its initial public offering and the investment is now accounted for asavailable-for-sale.

statements of consolidated operations.

Investments presented in the table above have the same fair value as their carrying value.

Other fair value information - The table below presents the carrying values and estimated fair values of financial instruments not presented in the tables above as of December 31 (in millions):

  Fair Value of Debt by Fair Value Hierarchy Level 
  2017  2016 
  Carrying
Amount
  Fair Value  Carrying
Amount
  Fair Value 
     Total  Level 1  Level 2  Level 3     Total  Level 1  Level 2  Level 3 

Long-term debt

  $  13,268   $  13,787   $—    $  10,115   $  3,672   $  10,767   $  11,055   $—    $  8,184   $  2,871 

. Carrying amounts include any related discounts, premiums and issuance costs:

 2019 2018
 Carrying Amount Fair Value Carrying Amount Fair Value
   Total Level 1 Level 2 Level 3   Total Level 1 Level 2 Level 3
Long-term debt$14,552
 $15,203
 $
 $11,398
 $3,805
 $13,445
 $13,450
 $
 $9,525
 $3,925

Fair value of the financial instruments included in the tables above was determined as follows:


Description

Fair Value Methodology

Cash and cash equivalentsThe carrying amounts approximate fair value because of the short-term maturity of these assets.

Short-term investments,

Equity securities EETC and
Restricted cash

Fair value is based on (a) the trading prices of the investment or similar instruments, (b) an income approach, which uses valuation techniques to convert future amounts into a single present amount based on current market expectations about those future amounts when observable trading prices are not available, or (c) broker quotes obtained by third-party valuation services.
Other investments measured at NAVIn accordance with the relevant accounting standards, certain investments that are measured at fair value using the NAV per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the table above are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position. The investments measured using NAV are shares of mutual funds that invest in fixed-income instruments including bonds, debt securities, and other similar instruments issued by various U.S. andnon-U.S. public- or private-sector entities. The Company can redeem its shares at any time at NAV subject to athree-day settlement period.
AVH Derivative AssetsFair values are calculated using a Monte Carlo simulation approach. Unobservable inputs include expected volatility, expected dividend yield and control and acquisition premiums.
Long-term debtFair values were based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities.liabilities or assets.

Investments in Regional Carriers. United holds investments in several regional carriers that fly for the Company as United Express under its capacity purchase agreements ("CPAs"). The combined carrying value of the investments was approximately $126 million as of December 31, 2019. United accounts for each investment using the equity method. Each investment and United's ownership stake are listed below.

Republic Airways Holdings Inc. ("Republic"). United holds a 19% minority interest in Republic which the Company received in 2017 in consideration for its unsecured claim in Republic's bankruptcy case. Republic is the parent company of Republic Airline Inc.
ManaAir, LLC ("ManaAir"). United holds a 49.9% minority ownership stake in ManaAir. ManaAir is the parent company of ExpressJet Airlines LLC.
Champlain Enterprises, LLC ("Champlain"). United owns a 40% minority ownership stake in Champlain. Champlain does business as CommutAir.
Other Investments.United owns approximately 8% of the preferred shares (representing approximately 7% of the total capital stock) of Fulcrum BioEnergy, Inc. ("Fulcrum"), a company that is developing a process for transforming municipal solid waste into transportation fuels, including jet fuel and diesel. United records its investment in Fulcrum at cost less impairment, adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer. As of December 31, 2019, the carrying value of United's investment was $51 million.

NOTE 10 - DEBT

(In millions)

  At December 31, 
   2017   2016 

Secured

    
Notes payable, fixed interest rates of 2.88% to 9.52% (weighted average rate of 4.39% as of December 31, 2017), payable through 2028   $8,661     $7,586  
Notes payable, floating interest rates of the London interbank offered rate (“LIBOR”) plus 0.2% to 2.25%, payable through 2028   1,880     1,546  
Term loan, LIBOR plus 2.00%, or alternative rate based on certain market rates plus 1.00%, due 2024   1,489     —  
Term loan, LIBOR subject to a 0.75% floor, plus 2.50%, or alternative rate based on certain market rates plus 1.50%, due 2019   —     866  
Term loan, LIBOR subject to a 0.75% floor, plus 2.75%, or alternative rate based on certain market rates plus 1.75%, due 2021   —     192  
Unsecured    
6.375% Senior Notes due 2018 (a)   300     300  
6% Senior Notes due 2020 (a)   300     300  
4.25% Senior Notes due 2022 (a)   400     —  
5% Senior Notes due 2024 (a)   300     —  
Other   101     101  
  

 

 

   

 

 

 
    13,431      10,891  
  

 

 

   

 

 

 

Less: unamortized debt discount, premiums and debt issuance costs

   (163)    (124) 

Less: current portion of long-term debt

   (1,565)    (849) 
  

 

 

   

 

 

 
Long-term debt, net   $    11,703     $    9,918  
  

 

 

   

 

 

 

(In millions) At December 31,
  2019 2018
Secured    
Notes payable, fixed interest rates of 2.7% to 9.8% (weighted average rate of 3.95% as of December 31, 2019), payable through 2032 $9,615
 $8,811
Notes payable, floating interest rates of the London interbank offered rate ("LIBOR") plus 1.05% to 2.25%, payable through 2030 1,970
 2,051
Term loan, LIBOR plus 1.75%, or alternative rate based on certain market rates plus 0.75%, due 2024 1,459
 1,474
Unsecured    
6% Senior Notes due 2020 (a) 300
 300
4.25% Senior Notes due 2022 (a) 400
 400
5% Senior Notes due 2024 (a) 300
 300
4.875% Senior Notes due 2025 (a) 350
 
Other 339
 300
  14,733
 13,636
Less: unamortized debt discount, premiums and debt issuance costs (181) (191)
Less: current portion of long-term debt (1,407) (1,230)
Long-term debt, net $13,145
 $12,215
(a) UAL is the issuer of this debt. United is a guarantor.

The table below presents the Company’sCompany's contractual principal payments (not including debt discount or debt issuance costs) at December 31, 20172019 under then-outstanding long-term debt agreements in each of the next five calendar years (in millions):

2018

   $1,565  

2019

   1,165  

2020

   1,170  

2021

   1,157  

2022

   1,492  

After 2022

   6,882  
  

 

 

 
   $    13,431  
  

 

 

 

2020 $1,407
2021 1,415
2022 1,765
2023 815
2024 3,122
After 2024 6,209
  $14,733

Secured debt

2017

Credit and Guaranty Agreement. On March 29, 2017, United and UAL, as borrower and guarantor, respectively, entered into anare parties to the Amended and Restated Credit and Guaranty Agreement (as amended, by the First Amendment to the Amended and Restated Credit and Guaranty Agreement, dated as of November 15, 2017, the “November 2017 Amendment,” and as so amended, the “2017 Credit Agreement”"Credit Agreement"). The 2017 Credit Agreement consists of a $1.5 billion term loan due April 1, 2024 which was used to retire the entire principal balance of the term loans under the credit and guaranty agreement, dated March 27, 2013 (as amended, the “2013 Credit Agreement”), and increased the term loan balance by approximately $440 million. The 2017 Credit Agreement

also includes a $2.0 billion revolving credit facility available for drawing until its maturity date on April 1, 2022, which increased the available capacity under the revolving credit facility by $650 million as compared to that in the 2013 Credit Agreement. The primary purpose of the November 2017 Amendment was to reduce the interest rate on borrowings by 0.25%.2022. The obligations of United under the amended 2017 Credit Agreement are secured by liens on certain international route authorities, certaintake-off and landing rights and related assets of United.

Borrowings

Term loan borrowings under the 2017 Credit Agreement bear interest at a variable rate equal to LIBOR plus a margin of 2.00%1.75% per annum, or another rate based on certain market interest rates, plus a margin of 1.00%0.75% per annum. The principal amount of the term loan must be repaid in consecutive quarterly installments of 0.25% of the original principal amount thereof, commencing on June 30, 2017, with any unpaid balance due on April 1, 2024. United may prepay all or a portion of the loan from time to time, at par plus accrued and unpaid interest.
As of December 31, 2019, United had its entire capacity of $2.0 billion available under the revolving credit facility of the Company's Credit Agreement. United pays a commitment fee equal to 0.75% per annum on the undrawn amount available under the revolving credit facility.

If drawn, revolving loans under the Credit Agreement bear interest at a variable rate equal to LIBOR plus a margin of 2.25% per annum, or another rate based on certain market interest rates, plus a margin of 1.25% per annum.


EETCs.As of December 31, 2017,2019, United had its entire capacity of $2.0 billion available under the revolving credit facility of the Company’s 2017 Credit Agreement.

As of December 31, 2017, United had cash collateralized $75 million of letters of credit. United also had $362 million of surety bonds securing various obligations at December 31, 2017. Most of the letters of credit have evergreen clauses and are expected to be renewed on an annual basis. The surety bonds have expiration dates through 2021.

EETCs. As of December 31, 2017, United had $8.6$9.6 billion principal amount of equipment notes outstanding issued under EETCenhanced equipment trust certificates ("EETC") financings included in notes payable in the table of outstanding debt above. Generally, the structure of these EETC financings consists of pass-through trusts created by United to issue pass-through certificates, which represent fractional undivided interests in the respective pass-through trusts and are not obligations of United. The proceeds of the issuance of the pass-through certificates are used to purchase equipment notes which are issued by United and secured by its aircraft. The payment obligations under the equipment notes are those of United. Proceeds received from the sale of pass-through certificates are initially held by a depositary in escrow for the benefit of the certificate holders until United issues equipment notes to the trust, which purchases such notes with a portion of the escrowed funds. These escrowed funds are not guaranteed by United and are not reported as debt on United’sUnited's consolidated balance sheet because the proceeds held by the depositary are not United’sUnited's assets.

In February 2018, November 2017,and September 2016 and June 2016,2019, United created separatenew EETC pass-through trusts, each of which issued pass-through certificates. The proceeds of the issuance of the pass-through certificates are used to purchase equipment notes issued by United and secured by its aircraft. The Company records the debt obligation upon issuance of the equipment notes rather than upon the initial issuance of the pass-through certificates. Certain details of the pass-through trusts with proceeds received from issuance of debt in 20172019 are as follows (in millions, except stated interest rate):

EETC Date

 Class Principal  Final expected
distribution
date
 Stated
interest
rate
  Total debt
recorded
 as of December 31, 
2017
  Proceeds
received from
issuance of
debt during
2017
  Remaining
proceeds from
issuance of debt
to be received
in future
periods
 

February 2018

 AA  $677   March 2030  3.50%   $—    $—    $677  

February 2018

 A  258   March 2030  3.70%   —    —    258  

November 2017

 B  258   January 2026  3.65%   258    258    —  

November 2017

 B  236   October 2025  3.65%   236    236    —  

September 2016

 AA  637   October 2028  2.875%   637    557    —  

September 2016

 A  283   October 2028  3.10%   283    247    —  

June 2016

 AA  729   July 2028  3.10%   729    319    —  

June 2016

 A  324   July 2028  3.45%   324    142    —  
  

 

 

    

 

 

  

 

 

  

 

 

 
   $3,402      $2,467    $1,759    $935  
  

 

 

    

 

 

  

 

 

  

 

 

 
EETC Issuance Date Class Principal Final expected distribution date Stated interest rate Total proceeds received from issuance of debt during 2019 and recorded as debt as of December 31, 2019 Amounts returned to the holders of the Pass-Through Certificates (a) Remaining proceeds from issuance of debt to be received in future periods
September 2019 AA $702
 May 2032 2.70% $513
 $
 $189
September 2019 A 287
 May 2028 2.90% 210
 
 77
September 2019 B 232
 May 2028 3.50% 170
 
 62
February 2019 AA 717
 August 2031 4.15% 651
 66
 
February 2019 A 296
 August 2031 4.55% 269
 27
 
    $2,234
     $1,813
 $93
 $328


(a) These proceeds were expected to be used to purchase equipment notes issued by United and secured by 3 Boeing 737 MAX aircraft, which aircraft were scheduled for delivery by Boeing in 2019. However, as a result of the Federal Aviation Administration Order prohibiting the operation of Boeing 737 MAX series aircraft by U.S. certificated operators (the "FAA Order"), United did not take delivery of these aircraft. These amounts were distributed to the holders of February 2019 Pass Through Certificates together with accrued and unpaid interest thereon but without premium. As a result of the FAA Order, the Company did not contemplate using any proceeds from the September 2019 issuance of the EETC pass-through trusts to fund any Boeing 737 MAX deliveries.

In 2017,2019, United borrowed approximately $497$105 million aggregate principal amount from various financial institutions to finance the purchase of several aircraft delivered in 2017.2019. The notes evidencing these borrowings, which are secured by the related aircraft, mature in 20272029 and have interest rates comprised of the LIBOR plus a specified margin.

In November 2019, at the request of United, the California Municipal Finance Authority issued its approximately $295 million special facility revenue bonds and loaned the proceeds of such bonds to United pursuant to a loan agreement to finance the costs of construction of an aircraft maintenance and ground service equipment complex at Los Angeles International Airport. The bonds bear interest at 4% per annum, payable semiannually, commencing July 15, 2020 through the July 15, 2029 maturity date. As security for United's obligations under the loan agreement, United also entered into a leasehold mortgage which grants to the trustee of the bonds (acting on behalf of the bondholders) a lien on United's interest in the leased premises and any improvements thereon owned by or leased to United. As of December 31, 2019, United had recorded approximately $39 million related to this debt.
Unsecured debt

4.25%

4.875% Senior Notes due 2022.2025. In September 2017,May 2019, UAL issued $400$350 million aggregate principal amount of 4.25%4.875% Senior Notes due October 1, 2022January 15, 2025 (the “4.25%"4.875% Senior Notes due 2022”2025"). These notes, which are fully and unconditionally guaranteed and recorded by United on its balance sheet as debt. The indenture for the 4.25% Senior Notes due 2022 requires UAL to offer to repurchase the notes for cash if certain changes of control of UAL occur at a purchase price equal to 101% of the principal amount of notes repurchased plus accrued and unpaid interest.

5% Senior Notes due 2024.In January 2017, UAL issued $300 million aggregate principal amount of 5% Senior Notes due February 1, 2024 (the “5% Senior Notes due 2024”). These notes are fully and unconditionally guaranteed and recorded by United on its balance sheet as debt. The indenture for the 5% Senior Notes due 2024 requires UAL to offer to repurchase the notes for cash if certain changes of control of UAL occur at a purchase price equal to 101% of the principal amount of notes repurchased plus accrued and unpaid interest.

sheet.



As of December 31, 2017,2019, UAL and United were in compliance with their respective debt covenants. The collateral, covenants and cross default provisions of the Company’sCompany's principal debt instruments that contain such provisions are summarized in the table below:

Debt InstrumentCollateral, Covenants and Cross Default Provisions

Various equipment notes and other notes payable

Secured by certain aircraft. The indentures contain events of default that are customary for aircraft financing, including in certain cases cross default to other related aircraft.

Credit Agreement


Secured by certain of United’sUnited's international route authorities, specifiedtake-off and landing slots at certain airports and certain other assets.



The 2017 Credit Agreement requires the Company to maintain at least $2.0 billion of unrestricted liquidity at all times, which includes unrestricted cash, short-term investments and any undrawn amounts under any revolving credit facility, and to maintain a minimum ratio of appraised value of collateral to the outstanding obligations under the 2017 Credit Agreement of 1.6 to 1.0 at all times. The 2017 Credit Agreement contains covenants that, among other things, restrict the ability of UAL and its restricted subsidiaries (as defined in the 2017 Credit Agreement) to incur additional indebtedness and to pay dividends on or repurchase stock, although, as of December 31, 2019, the Company currently hashad ample ability under these restrictions to repurchase stock under the Company’sCompany's share repurchase program.

programs.

The 2017 Credit Agreement contains events of default customary for this type of financing, including a cross default and cross acceleration provision to certain other material indebtedness of the Company.

6.375% Senior Notes due 2018

6% Senior Notes due 2020

4.25% Senior Notes due 2022

5% Senior Notes due 2024

4.875% Senior Notes due 2025
The indentures for these notes contain covenants that, among other things, restrict the ability of the Company and its restricted subsidiaries (as defined in the indentures) to incur additional indebtedness and pay dividends on or repurchase stock, although the Company currently has ample ability under these restrictions to repurchase stock under the Company’sCompany's share repurchase program.programs.

NOTE 11 - LEASES AND CAPACITY PURCHASE AGREEMENTS

United leases aircraft, airport passenger terminal space, aircraft hangars and related maintenance facilities, cargo terminals, other airport facilities, other commercial real estate, office and computer equipment and vehicles.

vehicles, among other items. Certain of these leases include provisions for variable lease payments which are based on several factors, including, but not limited to, relative leased square footage, available seat miles, enplaned passengers, passenger facility charges, terminal equipment usage fees, departures, and airports' annual operating budgets. Due to the variable nature of the rates, these leases are not recorded on our balance sheet as a right-of-use asset and lease liability.

AtFor leases with terms greater than 12 months, we record the related right-of-use asset and lease liability at the present value of fixed lease payments over the lease term. To the extent a lease agreement includes an extension option that is reasonably certain to be exercised, we have recognized those amounts as part of our right-of-use assets and lease liabilities. Leases with an initial term of 12 months or less with purchase options or extension options that are not reasonably certain to be exercised are not recorded on the balance sheet; we recognize lease expense for these leases on a straight-line basis over the term of the lease. We combine lease and non-lease components, such as common area maintenance costs, in calculating the right-of-use assets and lease liabilities for all asset groups except for our CPAs, which contain embedded leases for regional aircraft. In addition to the lease component cost for regional aircraft, our CPAs also include non-lease components primarily related to the regional carriers' operating costs incurred in providing regional aircraft services. We allocate consideration for the lease components and non-lease components of each CPA based on their relative standalone values.


Lease Cost. The Company's lease cost for the years ended December 31 2017, United’s scheduled future minimum lease payments under operatingincluded the following components (in millions):
  2019 2018 2017
Operating lease cost $1,038
 $1,213
 $1,433
Variable and short-term lease cost 2,548
 2,569
 2,209
Amortization of finance lease assets 68
 75
 77
Interest on finance lease liabilities 85
 44
 24
Sublease income (32) (38) (36)
Total lease cost $3,707
 $3,863
 $3,707

Lease terms and commitments. United's leases having initial or remaining noncancelable lease terms of more than one year,include aircraft leases includingfor aircraft rentthat are directly leased by United and aircraft that are operated by regional carriers on United's behalf under CPAs (but excluding aircraft owned by United) and capitalnon-aircraft leases. Aircraft operating leases (substantially all of which are for aircraft) were as follows (in millions):

   Capital Leases (a)   Facility and Other
Operating Leases
   Aircraft Operating
Leases
 

  2018

   $200     $1,234     $1,038  

  2019

   133     1,075     855  

  2020

   113     1,169     628  

  2021

   110     935     510  

  2022

   105     797     388  

  After 2022

   1,156     6,109     1,513  
  

 

 

   

 

 

   

 

 

 

  Minimum lease payments

   $1,817     $11,319     $4,932  
    

 

 

   

 

 

 

Imputed interest

   (693)     
  

 

 

     

Present value of minimum lease payments

   1,124      

Current portion

   (128)     
  

 

 

     

Long-term obligations under capital leases

   $996      
  

 

 

     

(a) Includes airport construction projects managed by United in which United has construction risk, including project cost overruns. The Company recorded an asset for project costs and a related liability equal to project costs funded by parties other than United. As of December 31, 2017, United had an asset balance of $814 million recorded in operating property and equipment and $777 million recorded in current and long-term obligations under capital leases for these airport construction projects.

As of December 31, 2017, United’s aircraft capital lease minimum payments relate to leases of 31114 mainline and 43325 regional aircraft as well aswhile finance leases relate to leases of nonaircraft assets. Imputed interest rate ranges are 3.5% to 20.8%.

Aircraft operating28 mainline and 17 regional aircraft. United's aircraft leases have initialremaining lease terms of fiveone month to 2610 years with expiration dates ranging from 20182020 through 2029. Under the terms of most aircraft leases, United has the right to purchase the aircraft at the end of the lease term, in some cases at fair market value, and in others, at fair market value or a percentage of cost.

During 2015,

Non-aircraft leases have remaining lease terms of one month to 34 years, with expiration dates ranging from 2020 through 2053.
The table below summarizes the Company reached an agreement with AerCap Holdings N.V., a major aircraft leasing company, toCompany's scheduled future minimum lease used Airbus S.A.S (“Airbus”) A319s. Eleven aircraftpayments under operating and finance leases, recorded on the balance sheet, as of December 31, 2019 (in millions):
  Operating Leases Finance Leases
2020 $920
 $62
2021 754
 75
2022 591
 49
2023 633
 38
2024 626
 35
After 2024 4,214
 57
Minimum lease payments 7,738
 316
Imputed interest (2,106) (50)
Present value of minimum lease payments 5,632
 266
Less: current maturities of lease obligations (686) (46)
Long-term lease obligations $4,946
 $220

As of December 31, 2019, we have been delivered since the inception of this agreement, and seven more aircraft are expected to be delivered between 2019 and 2020. In addition, United has options for seven more A319 aircraft, subject to certain conditions.

United is the lessee of real property under long-term operatingadditional leases at a number of airports where we are also the guarantor of approximately $1.4 billion$500 million for several mainline aircraft, regional jets under a CPA and airport facilities and office space leases that have not yet commenced. These leases will commence in 2020 and 2021 with lease terms of underlying debt and interest thereonup to 13 years.

Our lease agreements do not provide a readily determinable implicit rate nor is it available to us from our lessors. Instead, we estimate United's incremental borrowing rate based on information available at lease commencement in order to discount lease payments to present value. The table below presents additional information related to our leases as of December 31, 2017. These31:
  2019 2018
Weighted-average remaining lease term - operating leases 11 years
 10 years
Weighted-average remaining lease term - finance leases 6 years
 5 years
Weighted-average discount rate - operating leases 5.2% 5.2%
Weighted-average discount rate - finance leases 5.7% 45.8%



The table below presents supplemental cash flow information related to leases are typically with municipalities or other governmental entities, which are excluded fromduring the consolidation requirements concerning a variable interest entity (“VIE”). To the extent United’s leases and related guarantees are with a separate legal entity other than a governmental entity, United is not the primary beneficiary because the lease terms are consistent with market terms at the inception of the lease and the lease does not include a residual value guarantee, fixed-price purchase option, or similar feature. United has facility operating leases that extend to 2054.

United’s nonaircraft rent expense was approximately $1.3 billion, $1.2 billion and $1.3 billion for the yearsyear ended December 31 2017, 2016 and 2015, respectively.

In addition to nonaircraft rent and aircraft rent, which is separately presented in the consolidated statements of operations, United had aircraft rent related to regional aircraft operating leases, which is included as part of (in millions):

 2019 2018 2017
Cash paid for amounts included in the measurement of lease liabilities:     
Operating cash flows for operating leases$902
 $1,078
 $1,451
Operating cash flows for finance leases70
 53
 24
Financing cash flows for finance leases151
 79
 84

Regional capacity purchase expense in United’s consolidated statement of operations, of $458 million, $439 million and $461 million for the years ended December 31, 2017, 2016 and 2015, respectively.

In connection with UAL Corporation’s and United Air Lines, Inc.’s (predecessors to UAL and United) fresh-start reporting requirements upon their exit from Chapter 11 bankruptcy protection in 2006 and the Company’s

acquisition accounting adjustments related to the Company’s merger transaction in 2010, lease valuation adjustments for operating leases were initially recorded in the consolidated balance sheet, representing the net present value of the differences between contractual lease rates and the fair market lease rates for similar leased assets at the time. An asset (liability) results when the contractual lease rates are more (less) favorable than market lease terms at the valuation date. The lease valuation adjustment is amortized on a straight-line basis as an increase (decrease) to rent expense over the individual applicable remaining lease terms, resulting in recognition of rent expense as if United had entered into the leases at market rates. The related remaining lease terms, primarily related to aircraft which make up the majority of the fair value lease adjustment balance, are one to seven years for United. The lease valuation adjustments are classified within other noncurrent liabilities and the net accretion amounts are $79 million, $82 million and $107 million for the years ended December 31, 2017, 2016 and 2015, respectively.

Regional CPAs

CPAs. United has contractual relationships with various regional carriers to provide regional aircraft service branded as United Express. Under these CPAs, the Company pays the regional carriers contractually agreed fees (carrier costs) for operating these flights plus a variable reimbursement (incentive payment for operational performance)rate adjustment based on agreed performance metrics, subject to annual inflation adjustments. The fees for carrier costs are based on specific rates for various operating expenses of the regional carriers, such as crew expenses, maintenance and aircraft ownership, some of which are multiplied by specific operating statistics (e.g., block hours, departures), while others areas well as fixed monthly amounts. Under these CPAs, the Company is also responsible for all fuel costs incurred, as well as landing fees and other costs, which are either passed through by the regional carrier to the Company without any markup or directly incurred by the Company. United’sIn some cases, the Company owns some or all of the aircraft subject to the CPA and leases such aircraft to the regional carrier. United's CPAs are for 518581 regional aircraft as of December 31, 2017,2019, and the CPAs have terms expiring through 2029. Aircraft operated under CPAs include aircraft leased directly from the regional carriers and those owned by United or leased from third-party lessors and operated by the regional carriers. See Part I, Item 2,2. Properties, of this report for additional information.

In 2017,2019, United entered into a five-year CPAamended an agreement with Air Wisconsin Airlines for regional service under the United Express brand to operate up to 65 CRJ200 aircraft. In addition, United extended the term of its existing CPA with ExpressJetGoJet Airlines to operate up to approximately 12554 Bombardier CRJ-550s under a 10-year CPA arrangement. United also amended an agreement with Mesa Airlines, which added 20 new Embraer E175 LL aircraft through December 31, 2022. In January 2018, United removed all Bombardier Q200 turbopropunder a 12-year CPA and also extended 42 United-owned Embraer E175 aircraft and Embraer ERJ 135 aircraft from service.

United holds a minority equity interest in two of its regional carriers, Champlain Enterprises, Inc. and Republic Airways Holdings, Inc. The contracts with these related parties are executed in the ordinary course of business. for an additional 5 years.

United recorded approximately $538 million, $486$1 billion, $979 million and $366$907 million in expenses related to its capacity purchase agreementsCPAs with theseits regional carriers in which United is a minority shareholder, for the years ended December 31, 2017, 20162019, 2018 and 2015,2017, respectively. There were approximately $24$69 million and $32$53 million in accounts payable due to these companies as of December 31, 20172019 and December 31, 2016,2018, respectively. There were no material accounts receivablereceivables due from these companies as of December 31, 20172019 and December 31, 2016.

2018. The CPAs with these related parties were executed in the ordinary course of business.

Our future commitments under our CPAs are dependent on numerous variables, and are, therefore, difficult to predict. The most important of these variables is the number of scheduled block hours. Although we are not required to purchase a minimum number of block hours under certain of our CPAs, we have set forth below estimates of our future payments under the CPAs based on our assumptions. United’sUnited's estimates of its future payments under all of the CPAs do not include the portion of the underlying obligation for any aircraft leased to a regional carrier or deemed to be leased from other regional carriers and facility rent that are disclosed as part of aircraft and nonaircraft operating leases.leases above. For purposes of calculating these estimates, we have assumed (1) the number of block hours flown is based on our anticipated level of flight activity or at any contractual minimum utilization levels if applicable, whichever is higher, (2) that we will reduce the fleet as rapidly as contractually allowed under each CPA, (3) that aircraft utilization, stage length and load factors will remain constant, (4) that each carrier’scarrier's operational performance will remain at historic levels and (5) an annual projected inflation rate. These amounts exclude variable pass-through costs such as fuel and landing fees, among others. Based on these

assumptions as of December 31, 2017,2019, our future payments through the end of the terms of our CPAs are presented in the table below (in billions):

2018

   $2.0  

2019

   1.8  

2020

   1.6  

2021

   1.5  

2022

   1.4  

After 2022

   3.2  
  

 

 

 
   $            11.5  
  

 

 

 

2020$2.9
20212.9
20222.4
20231.5
20241.3
After 20244.7
 $15.7

The actual amounts we pay to our regional operators under CPAs could differ materially from these estimates. For example, a 10% increase or decrease in scheduled block hours for all of United’sUnited's regional operators (whether as a result of changes in average daily utilization or otherwise) in 20182020 would result in a corresponding change in annual cash obligations under the CPAs of approximately $147$202 million.


NOTE 12 - VARIABLE INTEREST ENTITIES

("VIE")

Variable interests are contractual, ownership or other monetary interests in an entity that change with fluctuations in the fair value of the entity’sentity's net assets exclusive of variable interests. A VIE can arise from items such as lease agreements, loan arrangements, guarantees or service contracts. An entity is a VIE if (a) the entity lacks sufficient equity or (b) the entity’sentity's equity holders lack power or the obligation and right as equity holders to absorb the entity’sentity's expected losses or to receive its expected residual returns. Therefore, if the equity owners as a group do not have the power to direct the entity’s activities that most significantly impact its economic performance, the entity is a VIE.

If an entity is determined to be a VIE, the entity must be consolidated by the primary beneficiary. The primary beneficiary is the holder of the variable interests that has the power to direct the activities of a VIE that (i) most significantly impact the VIE’sVIE's economic performance and (ii) has the obligation to absorb losses of or the right to receive benefits from the VIE that could potentially be significant to the VIE. Therefore, the Company must identify which activities most significantly impact the VIE’sVIE's economic performance and determine whether it, or another party, has the power to direct those activities.

The Company’s evaluation of its association with VIEs is described below:

Aircraft Leases. We are the lessee in a number of operating leases covering the majority of our leased aircraft. The lessors are trusts established specifically to purchase, finance and lease aircraft to us. These leasing entities meet the criteria for VIEs. We are generally not the primary beneficiary of the leasing entities if the lease terms are consistent with market terms at the inception of the lease and do not include a residual value guarantee, fixed-price purchase option or similar feature that obligates us to absorb decreases in value or entitles us to participate in increases in the value of the aircraft. This is the case for many of our operating leases; however, leases of 386 mainline jet aircraft contain a fixed-price purchase option that allow United to purchase the aircraft at predetermined prices on specified dates during the lease term. Additionally, leases covering 15860 leased regional jet aircraft contain an option to purchase the aircraft at the end of the lease term at prices that, depending on market conditions, could be below fair value. United has not consolidated the related trusts because, even taking into consideration these purchase options, United is still not the primary beneficiary. United’sUnited's maximum exposure under these leases is the remaining lease payments, which are reflected in future lease commitments in Note 11 of this report.

Airport Leases. United is the lessee of real property under long-term operating leases at a number of airports where we are also the guarantor of approximately $1.9 billion of tax-exempt special facilities revenue bonds and interest thereon as of December 31, 2019. These leases are typically with municipalities or other governmental entities, which are excluded from the consolidation requirements concerning a VIE. To the extent United's leases and related guarantees are with a separate legal entity other than a governmental entity, United is not the primary beneficiary because the lease terms are consistent with market terms at the inception of the lease and the lease does not include a residual value guarantee, fixed-price purchase option, or similar feature. See Note 13 of this report for more information regarding United's guarantee of the tax-exempt special facilities revenue bonds.
EETCs. United evaluated whether the pass-through trusts formed for its EETC financings, treated as either debt or aircraft operating leases, are VIEs required to be consolidated by United under applicable accounting guidance, and determined that the pass-through trusts are VIEs. Based on United’sUnited's analysis as described below, United determined that it does not have a variable interest in the pass-through trusts.

The primary risk of the pass-through trusts is credit risk (i.e. the risk that United, the issuer of the equipment notes, may be unable to make its principal and interest payments). The primary purpose of the pass-through trust structure is to enhance the credit worthiness of United’sUnited's debt obligation through certain bankruptcy protection provisions, a liquidity facility (in certain of the EETC structures) and improvedloan-to-value ratios for more senior debt classes. These credit enhancements lower United’sUnited's total borrowing cost. Pass-through trusts are established to receive principal and interest payments on the equipment notes purchased by the pass-through trusts from United and remit these proceeds to the pass-through trusts’trusts' certificate holders.

United does not invest in or obtain a financial interest in the pass-through trusts. Rather, United has an obligation to make interest and principal payments on its equipment notes held by the pass-through trusts. United diddoes not intend to have any voting ornon-voting equity interest in the pass-through trusts or to absorb variability from the pass-through trusts. Based on this analysis, the Company determined that it is not required to consolidate the pass-through trusts.

BRW. Synergy's wholly-owned affiliate, BRW, is a special purpose entity created to be the borrower of the BRW Term Loan. BRW is also the owner of the collateral that secures the BRW Term Loan. BRW is a VIE and United holds variable interests in BRW including the BRW Term Loan. However, United is not the primary beneficiary of BRW because it does not hold BRW equity and does not have management rights at BRW and therefore does not have the power to direct the activities that most significantly impact BRW's economic performance. In connection with the delivery by United of a notice of default to BRW, Kingsland was granted, in accordance with the agreements related to the BRW Term Loan Agreement, authority to manage BRW.

AVH. United concluded that AVH is a VIE and that United holds a variable interest through the AVH Convertible Loan and a call option on BRW's AVH shares. However, United is not the primary beneficiary because it does not hold a material number of shares of AVH and does not have the power through the AVH Convertible Loan Agreement or any other agreement to direct the activities that most significantly impact AVH's economic performance. See Note 8 of this report for more information regarding the AVH Convertible Loan and Note 9 of this report for more information about the AVH call options.

NOTE 13 - COMMITMENTS AND CONTINGENCIES

Commitments.As of December 31, 2017,2019, United had firm commitments and options to purchase aircraft from The Boeing Company (“Boeing”("Boeing"), Airbus S.A.S. ("Airbus") and AirbusEmbraer S.A. ("Embraer") presented in the table below:

Aircraft Type

Number of Firm
        Commitments (a)        

Airbus A350

45 

Boeing 737 MAX

161 

Boeing777-300ER

Boeing 787

18 
(a) United also has options and purchase rights for additional aircraft.

    Scheduled Aircraft Deliveries
Aircraft Type Number of Firm
Commitments (a)
 2020 After 2020
Airbus A321XLR 50
 
 50
Airbus A350 45
 
 45
Boeing 737 MAX 171
 44
 127
Boeing 777-300ER 2
 2
 
Boeing 787 16
 15
 1
Embraer E175 20
 20
 

(a) United also has options and purchase rights for additional aircraft.
The aircraft listed in the table above are scheduled for delivery from 2018 through 2027. In 2018, United2030. The Company expects to takeassign the purchase obligation for each of the 20 Embraer E175 aircraft to one of its regional partners at the time of such aircraft's delivery, of 10 Boeing 737 MAX aircraft, seven Boeing 787 aircraft and four Boeing777-300ER aircraft.subject to certain conditions. To the extent the Company and the aircraft manufacturers with whomwhich the Company has existing orders for new aircraft agree to modify the contracts governing those orders, the amount and timing of the Company’sCompany's future capital commitments could change. Additionally, the CompanyUnited also has entered into a contractagreements to purchase three20 used Boeing767-300ERAirbus A319 aircraft from Hawaiian Airlines, Inc. with expected delivery dates through 2022 and 19 used Boeing 737-700 aircraft with expected delivery dates through 2021.
The 44 Boeing 737 MAX aircraft in the second halftable above include 16 Boeing B737 MAX aircraft of 2018.

which the Company planned to take delivery in 2019, and 28 aircraft of which the Company planned to take delivery in 2020; however, following the FAA Order, Boeing suspended deliveries of new Boeing 737 MAX aircraft. The extent of the delay to the scheduled deliveries of new 737 MAX aircraft is expected to be impacted by the length of time the FAA Order remains in place, Boeing's production rate and the pace at which Boeing can deliver aircraft following the lifting of the FAA Order, among other factors. As a result, the Company is unable to estimate the number of Boeing 737 MAX aircraft of which it will take delivery in 2020.

The table below summarizes United’sUnited's commitments as of December 31, 2017,2019, which primarily relate to the acquisition ofinclude aircraft and related spare engines, aircraft improvements and include other capital purchase commitments for the years ended December 31 (in billions). Any new firm aircraft orders, including through the exercise of purchase options and purchase rights, will increase the total futureall non-aircraft capital commitments of the Company.

2018

   $                    3.2  

2019

   2.9  

2020

   2.1  

2021

   2.4  

2022

   1.8  

After 2022

   9.8  
  

 

 

 
   $22.2  
  

 

 

 

In February 2018, the(in billions):

2020 $6.9
2021 4.3
2022 2.0
2023 1.0
2024 1.2
After 2024 11.3
  $26.7

The Company secured $935$328 million of EETC financing to finance certain aircraft deliveries in 2017 and the first half of 2018.2020. The Company has also secured backstop financing commitments from certain of its aircraft manufacturers for a limited number of its future aircraft deliveries, subject to certain customary

conditions. Financing may be necessary to satisfy the Company’sCompany's capital commitments for its firm order aircraft and other related capital expenditures.

Legal and Environmental.The Company has certain contingencies resulting from litigation and claims incident to the ordinary course of business. As of December 31, 2017,2019, management believes, after considering a number of factors, including (but not limited to) the information currently available, the views of legal counsel, the nature of contingencies to which the Company is subject and prior experience, that the ultimate disposition of the litigation and claims will not materially affect the Company’sCompany's consolidated financial position or results of operations. The Company records liabilities for legal and environmental claims

when a loss is probable and reasonably estimable. These amounts are recorded based on the Company’sCompany's assessments of the likelihood of their eventual disposition.

Guarantees and Indemnifications. In the normal course of business, the Company enters into numerous real estate leasing and aircraft financing arrangements that have various guarantees included in the contracts. These guarantees are primarily in the form of indemnities under which the Company typically indemnifies the lessors and any tax/financing parties against tort liabilities that arise out of or relate to the use, occupancy, operation or maintenance of the leased premises or financed aircraft. Currently, the Company believes that any future payments required under these guarantees or indemnities would be immaterial, as most tort liabilities and related indemnities are covered by insurance (subject to deductibles). Additionally, certain leased premises such as fueling stations or storage facilitiesreal estate leases include indemnities of such parties for any environmental liability that may arise out of or relate to the use of the leased premises.

As of December 31, 2017,2019, United is the guarantor of approximately $1.8$1.9 billion in aggregate principal amount oftax-exempt special facilities revenue bonds and interest thereon. These bonds, issued by various airport municipalities, are payable solely from rentals paid under long-term agreements with the respective governing bodies. The leasing arrangements associated with $1.4 billion of these obligations are accounted for as operating leases recognized on the Company's balance sheet with the associated expense recorded on a straight-line basis resulting in ratable accrual of the lease obligation over the expected lease term. TheseThe obligations associated with these tax-exempt special facilities revenue bonds are included in our lease commitments disclosed in Note 11 of this report. The leasing arrangements associated with approximately $441 million of these obligations are accounted for as capital leases. All of these bonds are due between 20192020 and 2038.

In connection with funding the BRW Term Loan Agreement, the Company entered into an agreement with Kingsland, pursuant to which, in return for Kingsland's pledge of its 144.8 million common shares of AVH (which are eligible to be converted into the same number of preferred shares, which may be deposited with the depositary for AVH's American Depositary Receipts ("ADRs"), the class of AVH securities that trades on the New York Stock Exchange (the "NYSE"), in exchange for 18.1 million ADRs) and its consent to BRW's pledge of its AVH common shares to United under the BRW Term Loan Agreement and related agreements, United (1) granted to Kingsland the right to put its AVH common shares to United at market price on the fifth anniversary of the BRW Term Loan Agreement or upon certain sales of AVH common shares owned by BRW, including upon a foreclosure, and (2) guaranteed BRW's obligation to pay Kingsland the difference (which amount, if paid by United, will increase the BRW Term Loan by such amount) if the market price of AVH common shares on the fifth anniversary, or upon any such sale, as applicable, is less than $12 per ADR on the NYSE, for an aggregate maximum possible combined put payment and guarantee amount on the fifth anniversary of $217 million. In 2018, the Company recorded a liability of $31 million for the fair value of its guarantee to loan additional funds to BRW if required. Any such additional loans to BRW would be collateralized by BRW's AVH shares and other collateral.
As of December 31, 2019, United is the guarantor of $132 million of aircraft mortgage debt issued by one of United's regional carriers. The aircraft mortgage debt is subject to similar increased cost provisions as described below for the Company's debt, and the Company would potentially be responsible for those costs under the guarantees.
As of December 31, 2019, United had cash collateralized $73 million of letters of credit, which generally have evergreen clauses and are expected to be renewed on an annual basis. As of December 31, 2019, United also had $414 million of surety bonds securing various obligations with expiration dates through 2023.
Increased Cost Provisions. In United’sUnited's financing transactions that include loans in which United is the borrower, United typically agrees to reimburse lenders for any reduced returns with respect to the loans due to any change in capital requirements and, in the case of loans inwith respect to which the interest rate is based on LIBOR, for certain other increased costs that the lenders incur in carrying these loans as a result of any change in law, subject, in most cases, to obligations of the lenders to take certain limited steps to mitigate the requirement for, or the amount of, such increased costs. At December 31, 2017,2019, the Company had $3.4$3.4 billion of floating rate debt and $60 million of fixed rate debt with remaining terms of up to 11 years that are subject to these increased cost provisions. In several financing transactions involving loans or leases fromnon-U.S. entities, with remaining terms of up to 11 years and an aggregate balance of $3.3$3.2 billion, the Company bears the risk of any change in tax laws that would subject loan or lease payments thereunder tonon-U.S. entities to withholding taxes, subject to customary exclusions.

As of December 31, 2017, United is the guarantor of $157 million of aircraft mortgage debt issued by one of United’s regional carriers. The aircraft mortgage debt is subject to similar increased cost provisions as described above for the Company’s debt, and the Company would potentially be responsible for those costs under the guarantees.

Fuel Consortia.United participates in numerous fuel consortia with other air carriers at major airports to reduce the costs of fuel distribution and storage. Interline agreements govern the rights and responsibilities of the consortia members and provide for the allocation of the overall costs to operate the consortia based on usage. The consortia (and in limited cases, the participating carriers) have entered into long-term agreements to lease certain airport fuel storage and distribution facilities that are typically financed throughtax-exempt bonds, (eithereither special facilities lease revenue bonds or general airport revenue bonds),bonds, issued by various local municipalities. In

general, each consortium lease agreement requires the consortium to make lease payments in amounts sufficient to pay the maturing principal and interest payments on the bonds. As of December 31, 2017,2019, approximately $1.5$1.9 billion principal amount of such bonds were secured by significant fuel facility leases in which United participates, as to which United and each of the signatory airlines has provided indirect guarantees of the debt. As of December 31, 2017,2019, the Company’sCompany's contingent exposure was approximately $244$175 million principal amount of such bonds


based on its recent consortia participation. The Company’sCompany's contingent exposure could increase if the participation of other air carriers decreases. The guarantees will expire when thetax-exempt bonds are paid in full, which ranges from 2022 to 2049.2051. The Company did not record a liability at the time these indirect guarantees were made.

Regional Capacity Purchase.As of December 31, 2017,2019, United had 257325 call options to purchase regional jet aircraft being operated by certain of its regional carriers with contract dates extending until 2029. These call options are exercisable upon wrongful termination or breach of contract, among other conditions. None of the call options were exercisable at December 31, 2017.

Credit Card Processing Agreements.The Company has agreements with financial institutions that process customer credit card transactions for the sale of air travel and other services. Under certain of the Company’sCompany's credit card processing agreements, the financial institutions in certain circumstances have the right to require that the Company maintain a reserve equal to a portion of advance ticket sales that has been processed by that financial institution, but for which the Company has not yet provided the air transportation. Such financial institutions may require additional cash or other collateral reserves to be established or additional withholding of payments related to receivables collected if the Company does not maintain certain minimum levels of unrestricted cash, cash equivalents and short-term investments (collectively, “Unrestricted Liquidity”"Unrestricted Liquidity"). The Company’sCompany's current level of Unrestricted Liquidity is substantially in excess of these minimum levels.

Labor Negotiations. As of December 31, 2017,2019, United, including its subsidiaries, had approximately 89,80096,000 employees. Approximately 80%84% of United’sUnited's employees were represented by various U.S. labor organizations as of December 31, 2017.2019.
On February 1, 2019, the collective bargaining agreement with the Air Line Pilots Association ("ALPA"), the labor union representing United's pilots, became amendable. The Company and ALPA are in negotiations for an amended agreement. The Company and UNITE HERE, the labor union representing United's Catering Operations employees, started negotiations for a first collective bargaining agreement in March 2019.
The collective bargaining agreement with the International Brotherhood of Teamsters (the “IBT”"IBT") contains provisions that require the Company to align contract terms with other airlines’airlines' workgroups under certain conditions.

UNITE HERE is attempting to organize United’s Catering Operations employees, who are currently unrepresented, and filed an application to do so with the National Mediation Board on January 24, 2018.

There were no triggering events in 2019 that invoked these provisions.


NOTE 14 - SPECIAL CHARGES

AND UNREALIZED (GAINS) LOSSES ON INVESTMENTS

Special charges and unrealized gains and losses on investments in the statements of consolidated operations consisted of the following for the years ended December 31 (in millions):

Operating:          2017                   2016                   2015         

Severance and benefit costs

   $                116     $                37     $                107  

Impairment of assets

   25     412     79  

Cleveland airport lease restructuring

   —     74     —  

Labor agreement costs

   —     64     18  
(Gains) losses on sale of assets and other special charges   35     51     122  
  

 

 

   

 

 

   

 

 

 

Total operating special charges

   176     638     326  

Nonoperating:

      
(Gains) losses on extinguishment of debt and other   —     (1)    202  
  

 

 

   

 

 

   

 

 

 
Total operating and nonoperating special charges before income taxes   176     637     528  
Income tax benefit related to special charges   (63)    (229)    (11) 
Income tax adjustments (Notes 6 and 7)   (192)    180     (3,130) 
  

 

 

   

 

 

   

 

 

 

Total operating and nonoperating special charges, net of income taxes and income tax adjustments

   $(79)    $588   �� $(2,613) 
  

 

 

   

 

 

   

 

 

 

2017

During 2017,

Operating: 2019 2018 2017
Impairment of assets $171
 $377
 $25
Severance and benefit costs 16
 41
 116
Termination of an engine maintenance service agreement 
 64
 
(Gains) losses on sale of assets and other special charges 59
 5
 35
Total operating special charges 246
 487
 176
Nonoperating unrealized (gains) losses on investments (153) 5
 
Total special charges and unrealized (gains) losses on investments 93
 492
 176
Income tax benefit (21) (110) (63)
Income tax adjustments (Note 6) 
 (5) (189)
Total special charges and unrealized (gains) losses on investments, net of income taxes and income tax adjustments $72
 $377
 $(76)
2019
The Company conducted its annual impairment review of intangible assets in the fourth quarter of 2019, which consisted of a comparison of the book value of specific assets to the fair value of those assets. Due to a decrease in demand for the Hong Kong market and the resulting decrease in unit revenue, the Company determined that the value of its Hong Kong routes had been fully impaired. Accordingly, in the fourth quarter of 2019, the Company recorded $83a special non-cash impairment charge of $90 million ($53associated with its Hong Kong routes. Notwithstanding the impairment, the collateral pledged under the Company's term loan continues to be sufficient to satisfy the loan covenants. The Company determined the fair value of the Hong Kong routes using a variation of the income approach known as the excess earnings method, which discounts an asset's projected future net cash flows to determine the current fair value. Assumptions used in the discounted cash flow methodology include a discount rate, which is based upon the Company's current weighted average cost of capital plus an asset-specific risk factor, and a projection of sales, expenses, gross margin, tax rates and contributory asset charges for several future years and a terminal growth rate. The assumptions used for future projections are determined based upon the Company's asset-specific forecasts along with the Company's strategic plan. These assumptions are inherently uncertain as they relate to future events and circumstances. Actual results will be influenced by the competitive environment, fuel costs and other expenses, and potentially other unforeseen events or circumstances that could have a material negative impact on future results.
During 2019, the Company recorded a $43 million netimpairment primarily for surplus Boeing 767 aircraft engines removed from operations, an $18 million charge primarily for the write-off of taxes)unexercised aircraft purchase options, and $20 million in other aircraft impairments.
During 2019, the Company recorded $14 million of management severance and $2 million of severance and benefit costs related to a voluntaryearly-out program for its technicians and related employees represented by the IBT. In the first quarter of 2017, approximately 1,000 technicians and related employees elected to voluntarily separate from the Company and will receivereceived a severance payment, with a maximum value of $100,000 per participant, based on years of service, with retirement dates through early 2019. Also during 2017,
During 2019, the Company recorded charges of $25 million related to contract terminations, $18 million for the settlement of certain legal matters, $14 million for costs related to the transition of fleet types within a regional carrier contract and $2 million of other charges.
During 2019, the Company recorded gains of $140 million for the change in market value of certain of its equity investments, primarily Azul, and $13 million for the change in fair value of the AVH Derivative Assets.
2018
During 2018, the Company recorded a special non-cash impairment charge of $206 million associated with its Hong Kong routes as a result of its annual intangible assets impairment review. The Company determined the fair value of the Hong Kong routes using a variation of the income approach as described above for the 2019 Hong Kong impairment.
In May 2018, the Brazil–United States open skies agreement was ratified, which provides air carriers with unrestricted access between the United States and Brazil. The Company determined that the approval of the open skies agreement impaired the entire value of its Brazil route authorities because the agreement removes all limitations or reciprocity requirements for flights

between the United States and Brazil. Accordingly, the Company recorded a $105 million special charge to write off the entire value of the intangible asset associated with its Brazil routes. Also during 2018, the Company recorded $66 million of fair value adjustments related to aircraft purchased off lease, write-offs of unexercised aircraft purchase options and other impairments related to certain fleet types and international slots no longer in use.
During 2018, the Company recorded $22 million of severance and benefit costs related to the voluntary early-out program for its technicians and related employees represented by the IBT as described above. Also during 2018, the Company recorded other management severance of $19 million.
During 2018, the Company recorded a one-time termination charge of $64 million related to one of its engine maintenance service agreements.
During 2018, the Company recorded gains of $28 million for the change in market value of certain of its equity investments, primarily Azul. Also, the Company recorded losses of $33 million ($21 million netfor the change in fair value of taxes) of severance primarily related to its management reorganization initiative.

the AVH Derivative Assets.

2017
During 2017, the Company recorded a $10 million ($6 million net of taxes) impairment charge related to obsolete spare parts inventory and a $15 million ($10 million net of taxes) intangible asset impairment charge related to a maintenance service agreement.

2016

In April 2016, the Federal Aviation Administration (“FAA”) announced that it will designate Newark Liberty International Airport (“Newark”) as a Level 2 schedule-facilitated airport under the International Air Transport Association Worldwide Slot Guidelines. The designation was associated with an updated demand and capacity analysis of Newark by the FAA. In 2016, the Company determined that the FAA’s action impaired the entire value of its Newark slots because the slots are no longer the mechanism that governstake-off and landing rights. Accordingly,

During 2017, the Company recorded a $412$83 million special charge ($264 million net of taxes) to write off the intangible asset.

In 2016, the City of Cleveland agreed to amend the Company’s lease, which runs through 2029, associated with certain excess airport terminal space (principally Terminal D)severance and related facilities at Hopkins International Airport (“Cleveland”). The Company recorded an accrual for remaining payments under the lease for facilities

that the Company no longer uses and will continue to incurbenefit costs under the lease without economic benefit to the Company. This liability was measured and recorded at its fair value when the Company ceased its right to use such facilities leased to it pursuant to the lease. The Company recorded a net charge of $74 million ($47 million net of taxes) related to the amended lease.

The fleet service, passenger service, storekeeper and other employees represented by the International Association of Machinists and Aerospace Workers (the “IAM”) ratified seven new contracts with the Company which extended the contracts through 2021. Thevoluntary early-out program for its technicians and related employees represented by the IBT ratified asix-year joint collective bargaining agreement which extended the contract through 2022. During 2016, the Company recorded $171 million ($110 million net of taxes) of special charges primarily for payments in conjunction with the IAM and IBT agreementsas described above. As part of the ratified contract with the IBT, the Company amended some of its technicians and related employees’ postretirement medical plans. The amendments triggered curtailment accounting, resulting in the recognition of aone-time $60 million gain ($38 million net of taxes) for accelerated recognition of a prior service credit in one of the plans. Also as part of the ratified contract with the Association of Flight Attendants, the Company amended two of its flight attendant postretirement medical plans. The amendments triggered curtailment accounting, resulting in the recognition of aone-time $47 million gain ($30 million net of taxes) for accelerated recognition of a prior service credit.

During 2016, the Company recorded $37 million ($24 million net of taxes) of severance and benefit costs related to a voluntaryearly-out program for the Company’s flight attendants and other severance agreements. In 2014, more than 2,500 flight attendants elected to voluntarily separate from the Company for a severance payment, with a maximum value of $100,000 per participant, based on years of service, with retirement dates through the end of 2016.

2015

During its annual assessment in the fourth quarter,during 2017, the Company recorded $33 million ($22 million net of related income tax benefit) related toother management severance.

During 2017, the impairmentCompany recorded charges of its indefinite-lived intangible assets (certain domestic slots and international Pacific routes), $8$12 million for thewrite-off of unexercised aircraft purchase options and $7 million for inventory held for sale. For the full-year 2015, the Company also recorded other impairments, including $10 million for discontinued internal software projects and $10 million for the impairment of several engines held for sale.

The Company recorded $107 million of severance and benefit costs primarily related to a voluntaryearly-out program for its flight attendants. In 2014, more than 2,500 flight attendants elected to voluntarily separate from the Company for a severance payment, with a maximum value of $100,000 per participant, based on years of service, with retirement dates through the end of 2016.

During 2015, the Company also recorded $18 million related to collective bargaining agreements, $60 million of integration-related costs primarily related to systems integration and training for employees, $32 million related to charges for settlements in connection with legal matters, $16 million for the cease use of an aircraft under lease and $14weather-related damages, $11 million for losses on the sale of aircraftassets, and other miscellaneous gains and losses.

The Company recorded $202$12 million of losses as part of Nonoperating income (expense): Miscellaneous, net due primarily to thewrite-off of $134 million related to the unamortizednon-cash debt discount from the extinguishment of the 6% Notes due 2026 and the 6% Notes due 2028. During 2015, the Company also recorded a $61 million foreign exchange loss related to its cash holdings in Venezuela. The Venezuelan government has maintained currency controls and fixed official exchange rates (i.e. Sistema Complementario de Administracion de Divisas (“SICAD”), and Sistema Marginal de Divisas (“SIMADI”)) for many years. Previously, airlines were permitted to use the more favorable SICAD rate (13.5 Venezuelan bolivars to one U.S. dollar) if repatriating profits and for payments of local goods and services in Venezuela. During 2015, many of the payments for local goods and services transitioned to utilizing the SIMADI rate (200 Venezuelan bolivars to one U.S. dollar) or were required to be paid in U.S. dollars. Furthermore, the Venezuelan government has not permitted the exchange and repatriations of local currency sincemid-2014. As a result, the Company changed the exchange

rate from historical SICAD rates to a combination of SIMADI and SICAD rates based on projections of future cash payments. Including this adjustment, the Company’s resulting cash balance held in Venezuelan bolivars at December 31, 2015 was approximately $13 million.

Accrual Activity

Activity related to the accruals for severance and medical costs and future lease payments on permanently grounded aircraft is as follows (in millions):

   Severance/
Benefit Costs
   Permanently
Grounded Aircraft
 

Balance at December 31, 2014

  $109   $102 

Accrual

   107    30 

Payments

   (189)    (54) 
  

 

 

   

 

 

 

Balance at December 31, 2015

   27    78 

Accrual and related adjustments

   37    (17) 

Payments

   (50)    (20) 
  

 

 

   

 

 

 

Balance at December 31, 2016

   14    41 

Accrual

   116    (4) 

Payments

   (93)    (15) 
  

 

 

   

 

 

 

Balance at December 31, 2017

  $37   $22 
  

 

 

   

 

 

 

The Company’s accrual and payment activity is primarily related to severance and other compensation expense associated with voluntary employee early retirement programs.

charges.

NOTE 15 - SEGMENT INFORMATION

Operating segments are defined as components of an enterprise with separate financial information, which are evaluated regularly by the chief operating decision maker and are used in resource allocation and performance assessments.

The Company deploys its aircraft across its route network through a single route scheduling system to maximize its value. When making resource allocation decisions, the Company’s chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics. The Company’s chief operating decision maker makes resource allocation decisions to maximize the Company’s consolidated financial results. Managing the Company as one segment allows management the opportunity to maximize the value of its route network.

The Company’s operating revenue by principal geographic region (as defined by the U.S. Department of Transportation) for the years ended December 31 is presented in the table below (in millions):

       2017           2016           2015     

Domestic (U.S. and Canada)

  $23,131   $22,202   $21,931 

Pacific

   4,898    4,959    5,498 

Atlantic

   6,285    6,157    7,068 

Latin America

   3,422    3,238    3,367 
  

 

 

   

 

 

   

 

 

 

Total

  $37,736   $36,556   $37,864 
  

 

 

   

 

 

   

 

 

 

The Company attributes revenue among the geographic areas based upon the origin and destination of each flight segment. The Company’s operations involve an insignificant level of dedicated revenue-producing assets in

geographic regions as the overwhelming majority of the Company’s revenue producing assets (primarily U.S. registered aircraft) can be deployed in any of its geographic regions.

NOTE 16 - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

UAL                                                                    

  Quarter Ended 

(In millions, except per share amounts)

      March 31           June 30           September 30           December 31     

2017

        

Operating revenue

  $      8,420   $      10,000    $9,878    $9,438  

Income from operations

   278     1,399     1,092     729  

Net income

   96     818     637     580  

Basic earnings per share

   0.31     2.67     2.12     1.99  

Diluted earnings per share

   0.31     2.66     2.12     1.99  

2016

        

Operating revenue

  $8,195    $9,396    $9,913    $9,052  

Income from operations

   649     1,060     1,624     1,005  

Net income

   313     588     965     397  

Basic earnings per share

   0.88     1.78     3.02     1.26  

Diluted earnings per share

   0.88     1.78     3.01     1.26  

UAL’s

  Quarter Ended
(In millions, except per share amounts) March 31 June 30 September 30 December 31
2019        
Operating revenue $9,589
 $11,402
 $11,380
 $10,888
Income from operations 495
 1,472
 1,473
 861
Net income 292
 1,052
 1,024
 641
Basic earnings per share 1.09
 4.03
 4.01
 2.54
Diluted earnings per share 1.09
 4.02
 3.99
 2.53
         
2018        
Operating revenue $9,032
 $10,777
 $11,003
 $10,491
Income from operations (a) 262
 1,145
 1,187
 635
Net income (a) 145
 683
 833
 461
Basic earnings per share (a) 0.51
 2.48
 3.06
 1.70
Diluted earnings per share (a) 0.51
 2.48
 3.05
 1.69
(a) Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 of this report for additional information on the adjustments.

UAL's quarterly financial data is subject to seasonal fluctuations and historically its second and third quarter financial results, which reflect higher travel demand, are better than its first and fourth quarter financial results. UAL’sUAL's quarterly results were impacted by the following significant items (in millions):

  Quarter Ended 
      March 31          June 30      September 30  December 31 

2017

    

Operating:

    

Severance and benefit costs

  $37    $41    $23    $15  

Impairment of assets

  —    —    15    10  

(Gains) losses on sale of assets and other special charges

  14       12     
 

 

 

  

 

 

  

 

 

  

 

 

 

Total operating special charges

  51    44    50    31  

Income taxes:

    

Income tax benefit related to special charges

  (18)   (16)   (18)   (11) 

Income tax adjustments (Note 7)

  —    —    —    (192) 
 

 

 

  

 

 

  

 

 

  

 

 

 

Total operating special charges, net of income taxes and income tax adjustments

  $          33    $          28    $32    $(172) 
 

 

 

  

 

 

  

 

 

  

 

 

 

2016

    

Operating:

    

Labor agreement costs and related items

  $100    $10    $14    $(60) 

Cleveland airport lease restructuring

  74    —    —    —  

Severance and benefit costs

        13    10  

Impairment of assets

  —    412    —    —  

(Gains) losses on sale of assets and other special charges

        18    19  
 

 

 

  

 

 

  

 

 

  

 

 

 

Total operating special charges

  190    434    45    (31) 

Nonoperating and income taxes:

    

Losses (gain) on extinguishment of debt and other

     (9)   —    —  

Income tax expense (benefit) related to special charges

  (72)   (153)   (16)   12  

Income tax adjustments (Note 6)

  —    —    —    180  
 

 

 

  

 

 

  

 

 

  

 

 

 

Total operating and nonoperating special charges, net of income taxes and income tax adjustments

  $126    $272    $29    $161  
 

 

 

  

 

 

  

 

 

  

 

 

 

  Quarter Ended
  March 31 June 30 September 30 December 31
2019        
Impairment of assets 8
 61
 
 102
Severance and benefit costs 6
 6
 2
 2
(Gains) losses on sale of assets and other special charges 4
 4
 25
 26
Total operating special charges 18
 71
 27
 130
Nonoperating unrealized (gains) losses on investments (17) (34) (21) (81)
Total special charges and unrealized (gains) losses on investments 1
 37
 6
 49
Income tax benefit related to special charges and unrealized (gains) losses on investments 
 (8) (2) (11)
Total special charges and unrealized (gains) losses on investments, net of income tax 1
 29
 4
 38
         
2018        
Impairment of assets $23
 $111
 $11
 $232
Termination of an engine maintenance service agreement 
 
 
 64
Severance and benefit costs 14
 11
 9
 7
(Gains) losses on sale of assets and other special charges 3
 7
 (3) (2)
Total operating special charges 40
 129
 17
 301
Nonoperating unrealized (gains) losses on investments (45) 135
 (29) (56)
Total special charges and unrealized (gains) losses on investments (5) 264
 (12) 245
Income tax benefit related to special charges and unrealized (gains) losses on investments 1
 (59) 3
 (55)
Income tax adjustments 
 
 
 (5)
Total special charges and unrealized (gains) losses on investments, net of income tax $(4) $205
 $(9) $185

See Note 14 of this report for additional information ofrelated to these items.


NOTE 16 - SUBSEQUENT EVENTS
In December 2019, a novel strain of coronavirus ("COVID-19") was reported in Wuhan, China. The World Health Organization has declared COVID-19 to constitute a "Public Health Emergency of International Concern." On January 30, 2020, the U.S. Department of State issued a Level 4 "do not travel" advisory for China. The U.S. government has also implemented enhanced screenings, quarantine requirements and travel restrictions in connection with the COVID-19 outbreak.  The Company has suspended its flights between the United States and each of Beijing, Chengdu, Shanghai and Hong Kong through April 24, 2020. These routes represented approximately 5% of the Company's 2020 planned capacity and the Company's other trans-Pacific routes represented an additional 10% of the Company's 2020 planned capacity. As of the date of this report, the Company is experiencing an approximately 100% decline in near-term demand to China and an approximately 75% decline in near-term demand on the rest of the Company's trans-Pacific routes. The extent of the impact of the COVID-19 on the Company's operational and financial performance will depend on future developments, including the duration and spread of the outbreak and related travel advisories and restrictions and the impact of the COVID-19 on overall demand for air travel, all of which are highly uncertain and cannot be predicted. If traffic on the Company's trans-Pacific routes were to remain at these levels for an extended period, and/or routes in other parts of the Company's network begin to see significant declines in demand, our results of operations for full year 2020 may be materially adversely affected.
In February 2020, the Company announced that they had entered into a Third Amended and Restated Co-Branded Card Marketing Services Agreement (as amended from time to time, the "Agreement") with Chase. The Agreement, which replaces the Co-Brand Agreement, also extends the term into 2029 and modifies certain other terms. We will continue to account for the considerations received under the Agreement to the separately identifiable performance obligations using the estimated selling price allocation methodology explained in Note 1(d). In connection with the Agreement the Company, entered into an Amended and Restated Co-Branded Card Strategic Alliance Agreement with Visa U.S.A. Inc.

ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.

None.

ITEM 9A.CONTROLS AND PROCEDURES

Evaluation of Disclosure Control and Procedures

UAL and United each maintain controls and procedures that are designed to ensure that information required to be disclosed in the reports filed or submitted by UAL and United to the SEC is recorded, processed, summarized and reported, within the time periods specified by the SEC’sSEC's rules and forms, and is accumulated and communicated to management including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. The management of UAL and United, including the Chief Executive Officer and Chief Financial Officer, performed an evaluation to conclude with reasonable assurance that UAL’sUAL's and United’sUnited's disclosure controls and procedures were designed and operating effectively to report the information each company is required to disclose in the reports they file with the SEC on a timely basis. Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer of UAL and United have concluded that as of December 31, 2017,2019, disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting during the Quarter Ended December 31, 2017

2019

During the three months ended December 31, 2017,2019, there was no change in UAL’sUAL's or United’sUnited's internal control over financial reporting that materially affected, or is reasonably likely to materially affect, their internal control over financial reporting.


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Stockholders and Board of Directors of United ContinentalAirlines Holdings, Inc.


Opinion on Internal Control over Financial Reporting


We have audited United ContinentalAirlines Holdings, Inc.’s's (the “Company”"Company") internal control over financial reporting as of December 31, 2017,2019, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria)"COSO criteria"). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2019, based on the COSO criteria.


We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”("PCAOB"), the consolidated financial statements as of and for the year ended December 31, 20172019 of the Company and our report dated February 22, 201824, 2020 expressed an unqualified opinion thereon.


Basis for Opinion


The Company’sCompany's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management Report on Internal Control over Financial Reporting in Item 9A. Our responsibility is to express an opinion on the company’sCompany's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.


Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.


Definition and Limitations of Internal Control Over Financial Reporting


A company’scompany's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’scompany's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’scompany's assets that could have a material effect on the financial statements.


Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.




/s/ Ernst & Young LLP


Chicago, Illinois

February 22, 2018

24, 2020




United ContinentalAirlines Holdings, Inc. Management Report on Internal Control Over Financial Reporting

February 22, 2018

24, 2020

To the Stockholders of United ContinentalAirlines Holdings, Inc.

Chicago, Illinois

The management of United ContinentalAirlines Holdings, Inc. (“UAL”("UAL") is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules13a-15(f). Our internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Because of its inherent limitations, our internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the design and operating effectiveness of our internal control over financial reporting as of December 31, 2017.2019. In making this assessment, management used the framework set forth in Internal Control—Integrated Framework (2013 Framework)issued by the Committee of the Sponsoring Organizations of the Treadway Commission. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our internal control over financial reporting was effective as of December 31, 2017.

2019.


Our independent registered public accounting firm, Ernst & Young LLP, who audited UAL’sUAL's consolidated financial statements included in this Form10-K, has issued a report on UAL’sUAL's internal control over financial reporting, which is included herein.


United Airlines, Inc. Management Report on Internal Control Over Financial Reporting

February 22, 2018

24, 2020

To the Stockholder of United Airlines, Inc.

Chicago, Illinois

The management of United Airlines, Inc. (“United”("United") is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules13a-15(f). United’s United's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Because of its inherent limitations, United’sUnited's internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.


Under the supervision and with the participation of management, including United’sUnited's Chief Executive Officer and Chief Financial Officer, United conducted an evaluation of the design and operating effectiveness of its internal control over financial reporting as of December 31, 2017.2019. In making this assessment, management used the framework set forth in Internal Control—Integrated Framework (2013 Framework) issued by the Committee of the Sponsoring Organizations of the Treadway Commission. Based on this evaluation, United’sUnited's Chief Executive Officer and Chief Financial Officer concluded that its internal control over financial reporting was effective as of December 31, 2017.

2019.

This annual report does not include an attestation report of United’sUnited's registered public accounting firm regarding internal control over financial reporting. Management’sManagement's report was not subject to attestation by United’sUnited's registered public accounting firm pursuant to the rules of the Securities and Exchange Commission that permit United to provide only management’smanagement's report in this annual report.


ITEM 9B.OTHER INFORMATION.

None.

PART III

ITEM 10.DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.
Certain information required by this item with respect to UAL is incorporated by reference from UAL’sUAL's definitive proxy statement for its 20182020 Annual Meeting of Stockholders.Stockholders under the captions "Election of Directors" and "Corporate Governance." Information regarding the executive officers of UAL is presented below.

Information required byin Part I, Item 1 of this item with respect to United is omitted pursuant to General Instruction I(2)(c) of Form10-K.

EXECUTIVE OFFICERS OF UAL

The executive officers of UAL as of February 23, 2018 are listed below, along with their ages, tenure as officer and business background for at least the last five years.

Kate Gebo.Age 49. Ms. Gebo has served as Executive Vice President Human Resources and Labor Relations of UAL and United since December 2017. From November 2016 to November 2017, Ms. Gebo served as Senior Vice President Global Customer Service Delivery and Chief Customer Officer of United. From October 2015 to November 2016, Ms. Gebo served as Vice President of the Office of the Chief Executive Officer. From November 2009 to October 2015, Ms. Gebo served as Vice President of Corporate Real Estate of United.

Brett J. Hart.Age 48. Mr. Hart has served as Executive Vice President, Chief Administrative Officer and General Counsel of UAL and United since May 2017. From February 2012 to May 2017, he served as Executive Vice President and General Counsel of UAL and United. Mr. Hart served as acting Chief Executive Officer and principal executive officer of the Company, on an interim basis, from October 2015 to March 2016. From December 2010 to February 2012, he served as Senior Vice President, General Counsel and Secretary of UAL, United and Continental Airlines, Inc. (“Continental”). From June 2009 to December 2010, Mr. Hart served as Executive Vice President, General Counsel and Corporate Secretary at Sara Lee Corporation, a consumer food and beverage company. From March 2005 to May 2009, Mr. Hart served as Deputy General Counsel and Chief Global Compliance Officer of Sara Lee Corporation.

Gregory L. Hart.Age 52. Mr. Hart has served as Executive Vice President and Chief Operations Officer of UAL and United since February 2014. From December 2013 to February 2014, he served as Senior Vice President Operations of UAL and United. From September 2012 to December 2013, Mr. Hart served as Senior Vice President Technical Operations of United. From October 2010 to September 2012, Mr. Hart served as Senior Vice President Network of United and Continental. From September 2008 to September 2010, Mr. Hart served as Vice President Network Strategy of Continental. Mr. Hart joined Continental in 1997.

Linda P. Jojo.Age 52. Ms. Jojo has served as Executive Vice President Technology and Chief Digital Officer of UAL and United since May 2017. From November 2014 to May 2017, Ms. Jojo served as Executive Vice President and Chief Information Officer of UAL and United. From July 2011 to October 2014, Ms. Jojo served as Executive Vice President and Chief Information Officer of Rogers Communications, Inc., a Canadian communications and media company. From October 2008 to June 2011, Ms. Jojo served as Chief Information Officer of Energy Future Holdings, a Dallas-based privately held energy company and electrical utility provider.

Chris Kenny. Age 53. Mr. Kenny has served as Vice President and Controller of UAL and United since October 2010. From September 2003 to September 2010, Mr. Kenny served as Vice President and Controller of Continental. Mr. Kenny joined Continental in 1997.

J. Scott Kirby. Age 50. Mr. Kirby has served as President of UAL and United since August 2016. Prior to joining the Company, from December 2013 to August 2016, Mr. Kirby served as President of American Airlines

Group and American Airlines, Inc. Mr. Kirby also previously served as President of US Airways from October 2006 to December 2013. Mr. Kirby held significant other leadership roles at US Airways and at America West prior to the 2005 merger of those carriers, including Executive Vice President—Sales and Marketing (2001 to 2006); Senior Vice President,e-business (2000 to 2001); Vice President, Revenue Management (1998 to 2000); Vice President, Planning (1997 to 1998); and Senior Director, Scheduling and Planning (1995 to 1998). Prior to joining America West, Mr. Kirby worked for American Airlines Decision Technologies and at the Pentagon.

Andrew C. Levy. Age 48. Mr. Levy has served as Executive Vice President and Chief Financial Officer of UAL and United since August 2016. From November 2014 to August 2016, he was the Chief Executive Officer and Managing Partner of AML Ventures, LLC, an investment and advisory firm specializing in the airline industry. Previously, Mr. Levy held leadership roles at Allegiant Travel Company (“Allegiant”) for thirteen years, including as Chief Operating Officer and a Director from September 2013 to October 2014; President from September 2009 to October 2014; Chief Financial Officer from October 2007 to May 2010; and Managing Director, Planning & Treasurer from April 2001 to October 2010. Prior to joining Allegiant, Mr. Levy worked at Mpower Communications, Inc., Savoy Capital and ValuJet Airlines, Inc.

Oscar Munoz. Age 59. Mr. Munoz has served as Chief Executive Officer of UAL and United since September 2015, and also as President of UAL and United from September 2015 until August 2016. From February 2015 to September 2015, Mr. Munoz served as President and Chief Operating Officer of CSX Corporation (“CSX”), a railroad and intermodal transportation services company, overseeing operations, sales and marketing, human resources, service design and information technology. Prior to his appointment as President and Chief Operating Officer of CSX, Mr. Munoz served as Executive Vice President and Chief Operating Officer of CSX from January 2012 to February 2015 and as Executive Vice President and Chief Financial Officer of CSX from 2003 to 2012. Mr. Munoz has been a member of the UAL Board of Directors since 2010.

Andrew P. Nocella.Age 48. Mr. Nocella has served as Executive Vice President and Chief Commercial Officer of UAL and United since September 2017. From February 2017 to September 2017, he served as Executive Vice President and Chief Revenue Officer of UAL and United. Prior to joining the Company, from August 2016 to February 2017, Mr. Nocella served as Senior Vice President, Alliances and Sales of American Airlines, Inc. From December 2013 to August 2016, he served as Senior Vice President and Chief Marketing Officer of American Airlines, Inc. From August 2007 to December 2013, he served as Senior Vice President, Marketing and Planning of US Airways.

report. There are no family relationships among the executive officers or the directors of UAL. The executive officers are elected by UAL’sUAL's Board of Directors each year and hold office until the next annual meeting of stockholders, until their successors are elected and qualified, or until their earlier death, resignation or removal.

Information required by this item with respect to United is omitted pursuant to General Instruction I(2)(c) of Form 10-K.
Code of Ethics. The Company has a code of ethics, the “Code"Code of Ethics and Business Conduct," for its directors, officers and employees. The code serves as a “Code"Code of Ethics”Ethics" as defined by SEC regulations, and as a “Code"Code of Business Conduct and Ethics”Conduct" under the listed Company Manual of the NYSE.Nasdaq Listing Rule 5610. The code is available on the Company’sCompany's investor relations website at http://ir.united.com. Waivers granted to certain officers from compliance with or future amendments to the code will be disclosed on the Company’sCompany's investor relations website in accordance with Item 5.05 of Form8-K.

ITEM 11.EXECUTIVE COMPENSATION.

Information required by this item with respect to UAL is incorporated by reference from UAL’sUAL's definitive proxy statement for its 20182020 Annual Meeting of Stockholders.

Stockholders under the captions "Executive Compensation," "2019 Director Compensation" and "Corporate Governance—Compensation Committee Interlocks and Insider Participation."

Information required by this item with respect to United is omitted pursuant to General Instruction I(2)(c) of Form10-K.

ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

Information required by this item with respect to UAL is incorporated by reference from UAL’sUAL's definitive proxy statement for its 20182020 Annual Meeting of Stockholders.

Stockholders under the caption "Beneficial Ownership of Securities."

Information required by this item with respect to United is omitted pursuant to General Instruction I(2)(c) of Form10-K.

ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.

Information required by this item with respect to UAL is incorporated by reference from UAL’sUAL's definitive proxy statement for its 20182020 Annual Meeting of Stockholders.

Stockholders under the captions "Corporate Governance—Certain Relationships and Related Transactions," "Corporate Governance—Committees of the Board" and "Corporate Governance—Director Independence."

Information required by this item with respect to United is omitted pursuant to General Instruction I(2)(c) of Form10-K.


ITEM 14.PRINCIPAL ACCOUNTANT FEES AND SERVICES.

The Audit Committee of the UAL Board of Directors has adopted a policy onpre-approval of services of the Company’sCompany's independent registered public accounting firm. As a wholly-owned subsidiary of UAL, United’sUnited's audit services are determined by UAL. The policy provides that the Audit Committee shallpre-approve all audit andnon-audit services to be provided to UAL and its subsidiaries and affiliates by its independent auditors. The process by which this is carried out is as follows:

For recurring services, the Audit Committee reviews andpre-approves the independent registered public accounting firm’sfirm's annual audit services in conjunction with the annual appointment of the outside auditors. The reviewed materials include a description of the services along with related fees. The Audit Committee also reviews andpre-approves other classes of recurring services along with fee thresholds forpre-approved services. In the event that the additional services are required prior to the next scheduled Audit Committee meeting,pre-approvals of additional services follow the process described below.

Any requests for audit, audit related, tax and other services not contemplated with the recurring services approval described above must be submitted to the Audit Committee for specificpre-approval and cannot commence until such approval has been granted. Normally,pre-approval is provided at regularly scheduled meetings. However, the authority to grant specificpre-approval between meetings, as necessary, has been delegated to the Chair of the Audit Committee. The Chair must update the Audit Committee at the next regularly scheduled meeting of any services that were granted specificpre-approval.

On a periodic basis, the Audit Committee reviews the status of services and fees incurredyear-to-date and a list of newlypre-approved services since its last regularly scheduled meeting. The Audit Committee has considered whether the 20172019 and 20162018 non-audit services provided by Ernst & Young LLP, the Company’sCompany's independent registered public accounting firm, are compatible with maintaining auditor independence.

All of the services in 20172019 and 20162018 under the Audit Fees, Audit Related Fees, Tax Fees and All Other Fees categories below have been approved by the Audit Committee pursuant to paragraph (c)(7) of Rule2-01 of RegulationS-X of the Exchange Act.

The aggregate fees billed for professional services rendered by the Company’sCompany's independent auditors in 20172019 and 20162018 are as follows (in thousands):

Service

      2017           2016     

 

Audit Fees

   $4,548     $3,751  

 

Audit Related Fees

   565     215  

 

Tax Fees

   584     1,252  

 

All Other Fees

        
  

 

 

   

 

 

 
   $        5,699     $        5,220  
  

 

 

   

 

 

 

 

Note: UAL and United amounts are the same.

    

AUDIT FEES

Service 2019 2018
Audit Fees $4,323
 $3,992
Audit Related Fees 403
 375
Tax Fees 174
 166
All Other Fees 
 2
Total Fees $4,900
 $4,535
Note: UAL and United amounts are the same.    

Audit Fees. For 20172019 and 2016,2018, audit fees consist primarily of the audit and quarterly reviews of the consolidated financial statements and the audit of the effectiveness of internal control over financial reporting of United ContinentalAirlines Holdings, Inc. and its wholly-owned subsidiaries. Audit fees also include the audit of the consolidated financial statements of United, employee benefit plan audits, attestation services required by statute or regulation, comfort letters, consents, assistance with and review of documents filed with the SEC, and accounting and financial reporting consultations and research work necessary to comply with generally accepted auditing standards.

AUDIT RELATED FEES

Audit Related Fees. For 2017 and 2016,2019, fees for audit relatedaudit-related services primarily consisted of accounting consultations for proposed or future transactions and identifying and testing changes in the internal control environment prior to the implementation of the new revenue accounting system, which went into effect during the third quarter of 2019. For 2018, fees for audit-related services consisted of professional services related to due diligence and consultations related to the adoption of new accounting standards.

TAX FEES

standards prior to adoption.

Tax Fees. Tax fees for 20172019 and 20162018 relate to professional services provided for research and consultations regarding tax accounting and tax compliance matters and review of U.S. and international tax impacts of certain transactions, and assistance in assembling data to prepare for and respond to governmental reviews of past tax filings, exclusive of tax services rendered in connection with the audit.

ALL OTHER FEES

All Other Fees. Fees for all other services billed in 2017 and 20162018 consist of subscriptions to Ernst & Young LLP’sLLP's on-line accounting research tool.


PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
ITEM 15.EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

(a)List of documents filed as part of this report:
(a)
(1) 
Financial Statements. The financial statements required by this item are listed in Part II, Item 8,Financial Statements and Supplementary Data herein.
(2) 
Financial Statement Schedules. The financial statement schedule required by this item is listed below and included in this report after the signature page hereto.
 ScheduleII-Valuation and Qualifying Accounts for the years ended December 31, 2017, 20162019, 2018 and 2015.2017.
 All other schedules are omitted because they are not applicable, not required or the required information is shown in the consolidated financial statements or notes thereto.
(b) 
Exhibits. The exhibits required by this item are provided in the Exhibit Index.


ITEM 16. FORM 10-K SUMMARY.

None.

EXHIBIT INDEX


Exhibit No.

Registrant

Exhibit

Exhibit No.Registrant

Plan of Merger

Exhibit
  *2.1 

UAL

United

Agreement and Plan of Merger, dated as of May  2, 2010, by and among UAL Corporation, Continental Airlines, Inc. and JT Merger Sub Inc. (schedules and exhibits have been omitted pursuant to Item 601(b)(2) of RegulationS-K) (filed as Exhibit  2.1 to UAL’sForm 8-K filed May 4, 2010, Commission file number1-6033, and incorporated herein by reference)
  *2.2UnitedAgreement and Plan of Merger, dated as of March  28, 2013, by and between Continental Airlines, Inc. and United Air Lines, Inc. (filed as Exhibit 2.1 to UAL’s Form8-K filed April  3, 2013, Commission file number1-6033, and incorporated herein by reference)

Articles of Incorporation and Bylaws

  *3.1 
3.1UAL
  *3.2 
3.2UAL
  *3.3 
3.3United
  *3.4 
3.4United
 
 

Instruments Defining Rights of Security Holders, Including Indentures

  *4.1 

UAL

United

Amended and Restated Indenture, dated as of January  11, 2013, by and among United Continental Holdings, Inc. as Issuer, United Air Lines,  Inc. as Guarantor, and the Bank of New York Mellon Trust Company, N.A. as Trustee, providing for issuance of 6% Notes due 2028, 6% Notes due 2026 and 8% Notes due 2024 (filed as Exhibit 4.6 to UAL’s Form10-K for the year ended December 31, 2012, Commission file number1-6033, and incorporated herein by reference)
 4.1    *4.2
UAL
United

UAL

United

    *4.3

UAL

United

Second Supplemental Indenture, dated as of September  13, 2013, by and among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as trustee, to the Amended and Restated Indenture, dated as of January  11, 2013 (filed as Exhibit 4.1 to UAL’s Form8-K filed September 19, 2013, Commission file number1-6033, and incorporated herein by reference)

    *4.4UnitedIndenture, dated as of July  15, 1997, between Continental Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A. (as successor to Bank One, N.A.), as trustee related to Continental Airlines, Inc.’s 4.5% Convertible Notes due 2015 (filed as Exhibit to 4.1 to Continental’s FormS-3/A filed July 18, 1997, Commission file number1-10323, and incorporated herein by reference)
    *4.5

UAL

United

Fourth Supplemental Indenture, dated as of October  1, 2010, by and among Continental Airlines, Inc., United Continental Holdings, Inc. and The Bank of New York Mellon Trust Company, N.A., as trustee, with respect to the Indenture, dated as of July  15, 1997, between Continental Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A. (as successor to Bank One, N.A.), as trustee related to Continental Airlines, Inc.’s 4.5% Convertible Notes due 2015 (filed as Exhibit 4.3 to UAL’s Form8-K dated October 1, 2010, Commission file number1-6033, and incorporated herein by reference)
    *4.6

UAL

United

Fifth Supplemental Indenture, dated as of May  15, 2014, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as trustee (filed as Exhibit 4.1 to UAL’s Form8-K filed on May  19, 2014, Commission file number1-6033, and incorporated herein by reference)
    *4.7

UAL

United

Indenture, dated as of May 7, 2013, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee (filed as Exhibit 4.1 to UAL’sUAL's Form8-K filed on May 10, 2013, Commission file number1-6033, and incorporated herein by reference)
  *4.8 

UAL

United

First Supplemental Indenture, dated as of May  7, 2013, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee, providing for the issuance of 6.375% Senior Notes due 2018 (filed as Exhibit 4.2 to UAL’s Form8-K filed on May 10, 2013, Commission file number1-6033, and incorporated herein by reference)
 4.2    *4.9
UAL
United

UAL

United

    *4.10

UAL

United

Form of Notation of Note Guarantee (filed as Exhibit B to Exhibit 4.2 to UAL’s Form8-K filed on May 10, 2013, Commission file number1-6033, and incorporated herein by reference)
    *4.11

UAL

United

Second Supplemental Indenture, dated as of November 8, 2013, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee, providing for the issuance of 6.000% Senior Notes due 2020 (filed as Exhibit 4.2 to UAL’sUAL's Form8-K filed on November 12, 2013, Commission file number1-6033, and incorporated herein by reference)
  *4.12 
 4.3

UAL

United

  *4.13 
 4.4

UAL

United


     *4.144.5UAL

United

  *4.15 
4.6UAL

United
  *4.16 
4.7UAL

United
  *4.17 
4.8UAL

United
  *4.18 
4.9UAL

United
  *4.19 
4.10UAL

United

Material Contracts

 *†10.1
4.11UAL
United
  
4.12UAL
United
 
4.13UAL
United
4.14UAL
United
Material Contracts
 †10.1UAL
 *†10.2 
 †10.2UAL
  †10.3 UALFirst Amendment, dated January 29, 2018, to United Continental Holdings, Inc Profit Sharing Plan
 *†10.4†10.3UAL

United
 *†10.5 
 †10.4UAL

United
 *†10.6 
 †10.5UAL

United
 *†10.7 
 †10.6UAL

United

 *†10.8 
 †10.7UAL

United

 *†10.9†10.8UAL

United
 *†10.10 UAL
United
United Continental Holdings, Inc. Senior Officer Severance Plan (effective October  1, 2014) (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended September  30, 2015, Commission file number1-10323, and incorporated herein by reference)
 *†10.11UAL
United
Employment Agreement, dated as of October  1, 2010, by and among United Continental Holdings, Inc., United Air Lines, Inc., Continental Airlines, Inc. and Jeffery A. Smisek (filed as Exhibit 10.21 to UAL’s Form10-K for the year ended December  31, 2010, Commission file number1-6033, and incorporated herein by reference)
*†10.12UAL
United
Performance Award Agreement, dated May  5, 2016, by and among United Continental Holdings, Inc., United Airlines, Inc. and Brett J. Hart (filed as Exhibit 10.3 to UAL’s Form10-Q for the quarter ended June 30, 2016, Commission file number1-6033, and incorporated herein by reference)
*†10.13†10.9UAL
 *†10.14 
 †10.10UAL
 *†10.15 UAL
United
Confidentiality andNon-Competition Agreement, dated April  23, 2009, by and among Continental Airlines, Inc. and Jeffery A. Smisek (filed as Exhibit 10.1 to Continental Airlines, Inc.’s Quarterly Report on Form10-Q for the quarter ended March  31, 2009, Commission file number1-10323, and incorporated herein by reference)
 *†10.16†10.11UAL
United
*†10.17UAL
United
Description of Benefits for Officers of United ContinentalAirlines Holdings, Inc. and United Airlines, Inc. (filed as Exhibit 10.11 to UAL’s Form10-K for the year ended December 31, 2015, Commission file number1-6033 and incorporated herein by reference)
 *†10.18 
 †10.12UAL

 *†10.19 
 †10.13UAL
 *†10.20 
 †10.14UAL
 *†10.21 
 †10.15UAL
 *†10.22 
 †10.16UAL
 *†10.23 
 †10.17UAL
 *†10.24 
 †10.18UAL
*†10.25UALUnited Continental Holdings, Inc. Performance-Based Restricted Stock Unit Program (adopted pursuant to the United Continental Holdings, Inc. 2008 Incentive Compensation Plan) (filed as Exhibit 10.31 to UAL’sUAL's Form10-K for the year ended December 31, 2010, Commission file number1-6033, and incorporated herein by reference)
 *†10.26 
 †10.19UAL
 *†10.27 
 †10.20UAL
 *†10.28 
 †10.21UAL

 *†10.29 
 †10.22UAL

 *†10.30†10.23UAL
*†10.31UALForm of Performance-Based Restricted Stock Unit Award Notice pursuant to the United Continental Holdings, Inc. Performance-Based Restricted Stock Unit Program (RelativePre-tax Margin awards) (for performance periods beginning on or after January 1, 2015) (filed as Exhibit 10.2 to UAL’sUAL's Form10-Q for the quarter ended March 31, 2015, Commission file number1-6033, and incorporated herein by reference)
 *†10.32 
 †10.24UAL
 *†10.33
 †10.25UAL
  
 †10.26UAL
 
 †10.27UAL
 *†10.34 
 †10.28UAL
 †10.29UAL
 *†10.35 
†10.30UAL
 *†10.36 
 †10.31UAL
 †10.32UAL
†10.33UAL
 *†10.37 
 †10.34UAL

*†10.38UALForm of Annual Incentive Program Award Notice pursuant to the United Continental Holdings, Inc. Annual Incentive Program (for fiscal years beginning on or after January 1, 2013)(adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan) (filed as Exhibit 10.4710.64 to UAL’sUAL's Form10-K for the year ended December 31, 2012,2017, Commission file number1-6033, and incorporated herein by reference)
 *†10.39 
 †10.35UAL
 *†10.40 
 †10.36UAL
 *†10.41 
 †10.37UAL
†10.38UAL

 *†10.42 
†10.39UAL
 *†10.43 
^10.40UALContinental Airlines, Inc. 1998 Stock Incentive Plan (filed as Exhibit 4.3 to Continental’s FormS-8 Registration Statement (No.333-57297), Commission file number1-10323, and incorporated herein by reference)
*†10.44UALAmendment No. 1 to 1998 Incentive Plan, 1997 Incentive Plan and 1994 Incentive Plan (filed as Exhibit 10.2 to Continental’s  Quarterly Report on Form10-Q for the quarter ended June 30, 2001, Commission file no.1-10323, and incorporated herein by reference)
*†10.45UALAmendment to 1998 Incentive Plan, 1997 Incentive Plan and 1994 Incentive Plan (filed as Exhibit 10.5 to Continental’s Quarterly Report on Form10-Q for the quarter ended March 31, 2004, Commission file no.1-10323 and incorporated herein by reference)
*†10.46UALForm of Outside Director Stock Option Grant pursuant to the Continental Airlines, Inc. 1998 Incentive Plan (filed as Exhibit 10.12(c) to Continental’s Form10-K for the year ended December 31, 2006, Commission file number1-10323, and incorporated herein by reference)
*†10.47UALContinental Airlines, Inc. Incentive Plan 2000, as amended and restated (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended March 31, 2002, Commission file number1-10323, and incorporated herein by reference)
*†10.48UALAmendment to Incentive Plan 2000, dated as of March 12, 2004 (filed as Exhibit 10.6 to Continental’s Form10-Q for the quarter ended March 31, 2004, Commission file number1-10323, and incorporated herein by reference)
*†10.49UALSecond Amendment to Incentive Plan 2000, dated as of June 6, 2006 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended June 30, 2006, Commission file number1-10323, and incorporated herein by reference)

*†10.50UALThird Amendment to Incentive Plan 2000, dated as of September 14, 2006 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended September 30, 2006, Commission file number1-10323, and incorporated herein by reference)
*†10.51UALForm of Outside Director Stock Option Agreement pursuant to Incentive Plan 2000 (filed as Exhibit 10.14(b) to Continental’s Form10-K for the year ended December 31, 2000, Commission file number1-10323, and incorporated herein by reference)
*†10.52UALForm of Outside Director Stock Option Grant pursuant to Incentive Plan 2000 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended March 31, 2008, Commission file number1-10323, and incorporated herein by reference)
*†10.53UALForm ofNon-Employee Director Option Grant Document pursuant to Continental Airlines, Inc. Incentive Plan 2010, as amended and restated through February 17, 2010 (filed as Exhibit 10.12(a) to Continental’s Form10-K for the year ended December 31, 2009, Commission file number1-10323, and incorporated herein by reference)
*†10.54UALUnited Air Lines, Inc. Management Cash Direct & Cash Match Program (amended and restated effective January  1, 2014) (filed as Exhibit 10.64 to UAL’s Form10-K for the year ended December 31, 2013, Commission file number1-10323, and incorporated herein by reference)
*†10.55UALUnited Continental Holdings, Inc. Executive Severance Plan (effective October 1, 2014) (filed as Exhibit 10.1 to UAL’s Form8-K filed June 20, 2014, Commission file number1-6033, and incorporated herein by reference)
*†10.56UAL

United
*†10.57UALFirst Amendment to the United Continental Holdings, Inc. 2006 Director Equity Incentive Plan (as amended and restated on February  20, 2014) (filed as Exhibit 10.3 to UAL’sForm 10-Q for the quarter ended March  31, 2017, Commission file number1-6033, and incorporated herein by reference)
*†10.58UALUnited Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL’sForm 8-K filed on May 30, 2017, Commission file number1-6033, and incorporated herein by reference)
*†10.59UALForm of Restricted Stock Unit Award Notice pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.6 to UAL’s Form10-Q for the quarter ended June 30, 2017, Commission file number1-6033, and incorporated herein by reference)
*†10.60UALForm of Stock Option Award Notice pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.7 to UAL’s Form10-Q for the quarter ended June 30, 2017, Commission file number1-6033, and incorporated herein by reference)
*†10.61UALUnited Continental Holdings, Inc. Performance-Based RSU Program (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan) (filed as Exhibit 10.8 to UAL’s Form10-Q for the quarter ended June 30, 2017, Commission file number1-6033, and incorporated herein by reference)

*†10.62UALForm of Performance-Based RSU Award Notice pursuant to the United Continental Holdings, Inc. Performance-Based RSU Program (RelativePre-tax Margin awards) (filed as Exhibit 10.9 to UAL’s Form10-Q for the quarter ended June  30, 2017, Commission file number1-6033, and incorporated herein by reference)
†10.63UALUnited Continental Holdings, Inc. Annual Incentive Program (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan)
†10.64UALForm of Annual Incentive Plan Award Notice pursuant to the United Continental Holdings, Inc. Annual Incentive Program (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan)
*^10.65UAL
United
Airbus A350-900XWB Purchase Agreement, dated March 5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit  10.27 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.66UAL
United
Letter Agreement No. 1 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.28 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.67UAL
United
Letter Agreement No. 2 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.29 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.68UAL
United
Amended and Restated Letter Agreement No. 2 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.9 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.69UAL
United
Letter Agreement No. 3 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.30 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.70UAL
United
Amended and Restated Letter Agreement No. 3 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.10 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.71UAL
United
Letter Agreement No. 4 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.31 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.72UAL
United
Amended and Restated Letter Agreement No. 4 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.11 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.73UAL
United
Letter Agreement No. 5 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.32 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)

*^10.74UAL
United
Letter Agreement No. 6 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.33 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.75UAL
United
Letter Agreement No. 7 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.34 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.76UAL
United
Letter Agreement No. 8 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.35 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.77UAL
United
Letter Agreement No. 9 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.36 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.78UAL
United
Letter Agreement No. 10 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.37 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.79UAL
United
Letter Agreement No. 11 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.38 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.80UAL
United
Letter Agreement No. 12 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.39 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.81UAL
United
Letter Agreement No. 13 to the Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, by and among Airbus S.A.S and United Air Lines. Inc. (filed as Exhibit 10.40 to UAL’sForm 10-Q for the quarter ended March 31, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.82UAL
United
Amendment No. 1 to the Airbus A350-900XWB Purchase Agreement, dated June  25, 2010, by and among Airbus S.A.S and United Air Lines, Inc. (filed as Exhibit 10.6 to UAL’sForm 10-Q for the quarter ended June 30, 2010, Commission file number1-6033, and incorporated herein by reference)
*^10.83UAL
United
Amendment No. 2 to the Airbus A350-900XWB Purchase Agreement, dated June 19, 2013 (filed as Exhibit 10.8 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.84UAL
United
Amended and Restated Letter Agreement No. 5 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.12 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.85UAL
United
Amended and Restated Letter Agreement No. 6 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.13 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)

*^10.86UAL
United
Amended and Restated Letter Agreement No. 7 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.14 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.87UAL
United
Amended and Restated Letter Agreement No. 10 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.15 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.88UAL
United
Amended and Restated Letter Agreement No. 12 to the Airbus A350-900XWB Purchase Agreement, dated June  19, 2013 (filed as Exhibit 10.16 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.89UAL
United
Letter Agreement No. 14 to the Airbus A350-900XWB Purchase Agreement, dated May  6, 2016, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.6 to UAL’s Form10-Q for the quarter ended June  30, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.90UAL
United
Amendment No. 3, dated March 14, 2017, to Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended March  31, 2017, Commission file number1-6033, and incorporated herein by reference)
*^10.91UAL
United
Amended andRestated A350-900 Purchase Agreement, dated September 1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL’sUAL's Form10-Q for the quarter ended September 30, 2017, Commission file number1-6033, and incorporated herein by reference)
 *^10.92 
^10.41UAL

United
*^10.93UAL
United
Supplemental Agreement No. 1 to Purchase Agreement No. 1951, dated October  10, 1996 (filed as Exhibit 10.14(a) to Continental’s Form10-K for the year ended December  31, 1996, Commission file number1-10323, and incorporated herein by reference)
*^10.94UAL
United
Supplemental Agreement No. 2 to Purchase Agreement No. 1951, dated March 5, 1997 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended March 31, 1997, Commission file number1-10323 and incorporated herein by reference)
*^10.95UAL
United
Supplemental Agreement No. 3, including exhibit and side letter, to Purchase Agreement No. 1951, dated July  17, 1997 (filed as Exhibit 10.14(c) to Continental’s Form10-K for the year ended December  31, 1997, Commission file number1-10323, and incorporated herein by reference)
*^10.96UAL
United
Supplemental Agreement No. 4, including exhibits and side letters, to Purchase Agreement No. 1951, dated October  10, 1997 (filed as Exhibit 10.14(d) to Continental’s Form10-K for the year ended December  31, 1997, Commission file number1-10323, and incorporated herein by reference)
*^10.97UAL
United
Supplemental Agreement No. 5, including exhibits and side letters, to Purchase Agreement No. 1951, dated October  10, 1997 Airlines, Inc. (filed as Exhibit 10.1 to Continental’sUAL's Form10-Q for the quarter ended June  30, 1998, Commission file number1-10323, and incorporated herein by reference)

*^10.98UAL
United
Supplemental Agreement No. 6, including exhibits and side letters, to Purchase Agreement No. 1951, dated July  30, 1998 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended September 30, 1998,2019, Commission file number1-10323, 1-6033, and incorporated herein by reference)
 *^10.99
 ^10.42UAL
United
  UAL
United
Supplemental Agreement No. 7, including side letters, to Purchase Agreement No. 1951, dated November  12, 1998 (filed as Exhibit 10.24(g) to Continental’s Form10-K for the year ended December  31, 1998, Commission file number1-10323, and incorporated herein by reference)
 *^10.100^10.43UAL

United
*^10.101UAL
United
Letter Agreement No.6-1162-GOC-131R1 to Purchase Agreement No. 1951, dated March 26, 1998 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended March 31, 1998, Commission file number1-10323, and incorporated herein by reference)
*^10.102UAL
United
Supplemental Agreement No. 9, including side letters, to Purchase Agreement No. 1951, dated February  18, 1999 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended March  31, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.103UAL
United
Supplemental Agreement No. 10, including side letters, to Purchase Agreement No. 1951, dated March  19, 1999 (filed as Exhibit 10.4(a) to Continental’s Form10-Q for the quarter ended March  31, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.104UAL
United
Supplemental Agreement No. 11, including side letters, to Purchase Agreement No. 1951, dated March  14, 1999 (filed as Exhibit 10.7 to Continental’s Form10-Q for the quarter ended June  30, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.105UAL
United
Supplemental Agreement No. 12, including side letters, to Purchase Agreement No. 1951, dated July  2, 1999 (filed as Exhibit 10.8 to Continental’s Form10-Q for the quarter ended September  30, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.106UAL
United
Supplemental Agreement No. 13 to Purchase Agreement No. 1951, dated October  13, 1999 (filed as Exhibit 10.25(n) to Continental’s Form10-K for the year ended December  31, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.107UAL
United
Supplemental Agreement No. 14 to Purchase Agreement No. 1951, dated December  13, 1999 (filed as Exhibit 10.25(o) to Continental’s Form10-K for the year ended December  31, 1999, Commission file number1-10323, and incorporated herein by reference)
*^10.108UAL
United
Supplemental Agreement No. 15, including side letters, to Purchase Agreement No. 1951, dated January  13, 2000 (filed as Exhibit 10.1 to Continental���s Form10-Q for the quarter ended March  31, 2000, Commission file number1-10323, and incorporated herein by reference)
*^10.109UAL
United
Supplemental Agreement No. 16, including side letters, to Purchase Agreement No. 1951, dated March  17, 2000 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended March  31, 2000, Commission file number1-10323, and incorporated herein by reference)

*^10.110UAL
United
Supplemental Agreement No. 17, including side letters, to Purchase Agreement No. 1951, dated May  16, 2000 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended June  30, 2000, Commission file number1-10323, and incorporated herein by reference)
*^10.111UAL
United
Supplemental Agreement No. 18, including side letters, to Purchase Agreement No. 1951, dated September  11, 2000 (filed as Exhibit 10.6 to Continental’s Form10-Q for the quarter ended September  30, 2000, Commission file number1-10323, and incorporated herein by reference)
*^10.112UAL
United
Supplemental Agreement No. 19, including side letters, to Purchase Agreement No. 1951, dated October  31, 2000 (filed as Exhibit 10.20(t) to Continental’s Form10-K for the year ended December  31, 2000, Commission file number1-10323, and incorporated herein by reference)
*^10.113UAL
United
Supplemental Agreement No. 20, including side letters, to Purchase Agreement No. 1951, dated December  21, 2000 (filed as Exhibit 10.20(u) to Continental’s Form10-K for the year ended December  31, 2000, Commission file number1-10323, and incorporated herein by reference)
*^10.114UAL
United
Supplemental Agreement No. 21, including side letters, to Purchase Agreement No. 1951, dated March  30, 2001 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended March  31, 2001, Commission file number1-10323, and incorporated herein by reference)
*^10.115UAL
United
Supplemental Agreement No. 22, including side letters, to Purchase Agreement No. 1951, dated May  23, 2001 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended June  30, 2001, Commission file number1-10323, and incorporated herein by reference)
*^10.116UAL
United
Supplemental Agreement No. 23, including side letters, to Purchase Agreement No. 1951, dated June  29, 2001 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended June  30, 2001, Commission file number1-10323, and incorporated herein by reference)
*^10.117UAL
United
Supplemental Agreement No. 24, including side letters, to Purchase Agreement No. 1951, dated August  31, 2001 (filed as Exhibit 10.11 to Continental’s Form10-Q for the quarter ended September  30, 2001, Commission file number1-10323, and incorporated herein by reference)
*^10.118UAL
United
Supplemental Agreement No. 25, including side letters, to Purchase Agreement No. 1951, dated December  31, 2001 (filed as Exhibit 10.22(z) to Continental’s Form10-K for the year ended December  31, 2001, Commission file number1-10323, and incorporated herein by reference)
*^10.119UAL
United
Supplemental Agreement No. 26, including side letters, to Purchase Agreement No. 1951, dated March  29, 2002 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended March  31, 2002, Commission file number1-10323, and incorporated herein by reference)
*^10.120UAL
United
Supplemental Agreement No. 27, including side letters, to Purchase Agreement No. 1951, dated November  6, 2002 (filed as Exhibit 10.22(ab) to Continental’s Form10-K for the year ended December  31, 2002, Commission file number1-10323, and incorporated herein by reference)
*^10.121UAL
United
Supplemental Agreement No. 28, including side letters, to Purchase Agreement No. 1951, dated April  1, 2003 (filed as Exhibit 10.6 to Continental’s Form10-Q for the quarter ended March  31, 2003, Commission file number1-10323, and incorporated herein by reference)

*^10.122UAL
United
Supplemental Agreement No. 29, including side letters, to Purchase Agreement No. 1951, dated August  19, 2003 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended September  30, 2003, Commission file number1-10323, and incorporated herein by reference)
*^10.123UAL
United
Supplemental Agreement No. 30 to Purchase Agreement No. 1951, dated November  4, 2003 (filed as Exhibit 10.23(ae) to Continental’s Form10-K for the year ended December  31, 2003, Commission file number1-10323, and incorporated herein by reference)
*^10.124UAL
United
Supplemental Agreement No. 31 to Purchase Agreement No. 1951, dated August  20, 2004 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended September  30, 2004, Commission file number1-10323, and incorporated herein by reference)
*^10.125UAL
United
Supplemental Agreement No. 32, including side letters, to Purchase Agreement No. 1951, dated December  29, 2004 (filed as Exhibit 10.21(ag) to Continental’s Form10-K for the year ended December  31, 2004, Commission file number1-10323, and incorporated herein by reference)
*^10.126UAL
United
Supplemental Agreement No. 33, including side letters, to Purchase Agreement No. 1951, dated December  29, 2004 (filed as Exhibit 10.21(ah) to Continental’s Form10-K for the year ended December  31, 2004, Commission file number1-10323, and incorporated herein by reference)
*^10.127UAL
United
Supplemental Agreement No. 34 to Purchase Agreement No. 1951, dated June  22, 2005 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended June  30, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.128UAL
United
Supplemental Agreement No. 35 to Purchase Agreement No. 1951, dated June  30, 2005 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended June  30, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.129UAL
United
Supplemental Agreement No. 36 to Purchase Agreement No. 1951, dated July  28, 2005 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended September  30, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.130UAL
United
Supplemental Agreement No. 37 to Purchase Agreement No. 1951, dated March  30, 2006 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended March  31, 2006, Commission file number1-10323, and incorporated herein by reference)
*^10.131UAL
United
Supplemental Agreement No. 38 to Purchase Agreement No. 1951, dated June  6, 2006 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended June  30, 2006, Commission file number1-10323, and incorporated herein by reference)
*^10.132UAL
United
Supplemental Agreement No. 39 to Purchase Agreement No. 1951, dated August  3, 2006 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended September  30, 2006, Commission file number1-10323, and incorporated herein by reference)
*^10.133UAL
United
Supplemental Agreement No. 40 to Purchase Agreement No. 1951, dated December  5, 2006 (filed as Exhibit 10.23(ao) to Continental’s Form10-K for the year ended December  31, 2006, Commission file number1-10323, and incorporated herein by reference)

*^10.134UAL
United
Supplemental Agreement No. 41 to Purchase Agreement No. 1951, dated June  1, 2007 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended June  30, 2007, Commission file number1-10323, and incorporated herein by reference)
*^10.135UAL
United
Supplemental Agreement No. 42 to Purchase Agreement No. 1951, dated June  12, 2007 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended June  30, 2007, Commission file number1-10323, and incorporated herein by reference)
*^10.136UAL
United
Supplemental Agreement No. 43 to Purchase Agreement No. 1951, dated July  18, 2007 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended September  30, 2007, Commission file number1-10323, and incorporated herein by reference)
*^10.137UAL
United
Supplemental Agreement No. 44 to Purchase Agreement No. 1951, dated December  7, 2007 (filed as Exhibit 10.21(as) to Continental’s Form10-K for the year ended December  31, 2007, Commission file number1-10323, and incorporated herein by reference)
*^10.138UAL
United
Supplemental Agreement No. 45 to Purchase Agreement No. 1951, dated February  20, 2008 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended March  31, 2008, Commission file number1-10323, and incorporated herein by reference)
*^10.139UAL
United
Supplemental Agreement No. 46 to Purchase Agreement No. 1951, dated June  25, 2008 (filed as Exhibit 10.5 to Continental’s Form10-Q for the quarter ended June  30, 2008, Commission file number1-10323, and incorporated herein by reference)
*^10.140UAL
United
Supplemental Agreement No. 47 to Purchase Agreement No. 1951, dated October  30, 2008 (filed as Exhibit 10.21(av) to Continental’s Form10-K for the year ended December  31, 2008, Commission file number1-10323, and incorporated herein by reference)
*^10.141UAL
United
Supplemental Agreement No. 48 to Purchase Agreement No. 1951, dated January  29, 2009 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended June  30, 2009, Commission file number1-10323, and incorporated herein by reference)
*^10.142UAL
United
Supplemental Agreement No. 49 to Purchase Agreement No. 1951, dated May  1, 2009 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended June  30, 2009, Commission file number1-10323, and incorporated herein by reference)
*^10.143UAL
United
Supplemental Agreement No. 50 to Purchase Agreement No. 1951, dated July  23, 2009 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended September  30, 2009, Commission file number1-10323, and incorporated herein by reference)
*^10.144UAL
United
Supplemental Agreement No. 51 to Purchase Agreement No. 1951, dated August  5, 2009 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended September  30, 2009, Commission file number1-10323, and incorporated herein by reference)

*^10.145UAL
United
Supplemental Agreement No. 52 to Purchase Agreement No. 1951, dated August  31, 2009 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended September  30, 2009, Commission file number1-10323, and incorporated herein by reference)
*^10.146UAL
United
Supplemental Agreement No. 53 to Purchase Agreement No. 1951, dated December  23, 2009 (filed as Exhibit 10.22(bb) to Continental’s Form10-K for the year ended December  31, 2009, Commission file number1-10323, and incorporated herein by reference)
*^10.147UAL
United
Supplemental Agreement No. 54 to Purchase Agreement No. 1951, dated March  2, 2010 (filed as Exhibit 10.2 to Continental’s Form10-Q for the quarter ended March  31, 2010, Commission file number1-10323, and incorporated herein by reference)
*^10.148UAL
United
Supplemental Agreement No. 55 to Purchase Agreement No. 1951, dated March  31, 2010 (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended March  31, 2010, Commission file number1-10323, and incorporated herein by reference)
*^10.149UAL
United
Supplemental Agreement No. 56 to Purchase Agreement No. 1951, dated August  12, 2010 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended September  30, 2010, Commission File Number1-10323, and incorporated herein by reference)
*^10.150UAL
United
Supplemental Agreement No. 57 to Purchase Agreement No. 1951, dated March 2, 2011 (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended March 31, 2011, Commission file number1-6033, and incorporated herein by reference)
*^10.151UAL
United
Supplemental Agreement No. 58 to Purchase Agreement No. 1951, dated January  6, 2012 (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended March 31, 2012, Commission file number1-6033, and incorporated herein by reference)
*^10.152UAL
United
Supplemental Agreement No. 59 to Purchase Agreement No. 1951, dated July  12, 2012 (filed as Exhibit 10.5 to UAL’s Form10-Q for the quarter ended September  30, 2012, Commission file number1-6033, and incorporated herein by reference)
*^10.153UAL
United
Supplemental Agreement No. 60 to Purchase Agreement No. 1951, dated November  7, 2012 (filed as Exhibit 10.2 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.154UAL
United
Supplemental Agreement No. 61 to Purchase Agreement No. 1951, dated September  11, 2013 (filed as Exhibit 10.1 for the quarter ended September 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.155UAL
United
Supplemental Agreement No. 62 to Purchase Agreement No. 1951, dated January  14, 2015 (filed as Exhibit 10.3 for the quarter ended March 31, 2015, Commission file number1-6033, and incorporated herein by reference)
*^10.156UAL
United
Supplemental Agreement No. 63 to Purchase Agreement No. 1951, dated May  26, 2015 (filed as Exhibit 10.1 for the quarter ended June 30, 2015, Commission file number1-10323, and incorporated herein by reference)
*^10.157UAL
United
Supplemental Agreement No. 64 to Purchase Agreement No. 1951, dated June  12, 2015 (filed as Exhibit 10.2 for the quarter ended June 30, 2015, Commission file number1-10323, and incorporated herein by reference)

*^10.158UAL
United
Aircraft General Terms Agreement, dated October 10, 1997, by and among Continental and Boeing (filed as Exhibit 10.15 to Continental’sContinental's Form10-K for the year ended December 31, 1997, Commission File Number1-10323, and incorporated herein by reference)
 *^10.159 UAL
United
Letter Agreement6-1162-CHL-048, dated February 8, 2002, by and among Continental and Boeing (filed as Exhibit 10.44 to Continental’s Form10-K for the year ended December 31, 2001, Commission file number1-10323, and incorporated herein by reference)
 *^10.160^10.44UAL

United
*^10.161UAL
United
Supplemental Agreement No. 1 to Purchase Agreement No. 2484, dated June  30, 2005 (filed as Exhibit 10.5 to Continental’s Form10-Q for the quarter ended June  30, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.162UAL
United
Supplemental Agreement No. 2, including exhibits and side letters, to Purchase Agreement No. 2484, dated January  20, 2006 (filed as Exhibit 10.27(b) to Continental’s Form10-K for the year ended December  31, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.163UAL
United
Supplemental Agreement No. 3 to Purchase Agreement No. 2484, dated May  3, 2006 (filed as Exhibit 10.4 to Continental’s Form10-Q for the quarter ended June  30, 2006, Commission file number1-10323, and incorporated herein by reference)
*^10.164UAL
United
Supplemental Agreement No. 4 to Purchase Agreement No. 2484, dated July  14, 2006 (filed as Exhibit 10.5 to Continental’s Form10-Q for the quarter ended September  30, 2006, Commission file number1-10323, and incorporated herein by reference)
*^10.165UAL
United
Supplemental Agreement No. 5 to Purchase Agreement No. 2484, dated March  12, 2007 (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended March  31, 2007, Commission file number1-10323, and incorporated herein by reference)
*^10.166UAL
United
Supplemental Agreement No. 6 to Purchase Agreement No. 2484, dated October  22, 2008 (filed as Exhibit 10.25(f) to Continental’s Form10-K for the year ended December  31, 2008, Commission file number1-10323, and incorporated herein by reference)
*^10.167UAL
United
Supplemental Agreement No. 7 to Purchase Agreement No. 2484, dated November  7, 2012 (filed as Exhibit 10.179 to UAL’s Form10-K for the year ended December 31, 2012, Commission file number1-6033, and incorporated herein by reference)
*^10.168UAL
United
Supplemental Agreement No. 8 to Purchase Agreement No. 2484, dated June  17, 2013 (filed as Exhibit 10.4 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.169UAL
United
Supplemental Agreement No. 9 to Purchase Agreement No. 2484, dated June  6, 2014 (filed as Exhibit 10.4 to UAL’s Form10-Q for the quarter ended June 30, 2014, Commission file number1-6033, and incorporated herein by reference)

*^10.170UAL
United
Supplemental Agreement No. 10 to Purchase Agreement No. 2484, dated January  14, 2015 (filed as Exhibit 10.4 to UAL’s Form10-Q for the quarter ended March 31, 2015, Commission file number1-6033, and incorporated herein by reference)
*^10.171UAL
United
Supplemental Agreement No. 11 to Purchase Agreement No. 2484, dated April  30, 2015 (filed as Exhibit 10.3 to UAL’s Form10-Q for the quarter ended June 30, 2015, Commission file number1-10323, and incorporated herein by reference)
*^10.172UAL
United
Amended and Restated Letter Agreement No. 11, dated August  8, 2005, by and among Continental and General Electric Company (filed as Exhibit 10.3 to Continental’s Form10-Q for the quarter ended September 30, 2005, Commission file number1-10323, and incorporated herein by reference)
*^10.173UAL
United
Agreement, dated May  7, 2003, by and among Continental and the United States of America, acting through the Transportation Security Administration (filed as Exhibit 10.1 to Continental’s Form10-Q for the quarter ended June 30, 2003, Commission file number1-10323, and incorporated herein by reference)
*^10.174UAL
United
Purchase Agreement No.PA-03784, dated July  12, 2012, between The Boeing Company and United Air Lines, Inc. (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended September 30, 2012, Commission file number1-6033, and incorporated herein by reference)
*^10.175UAL
United
Supplemental Agreement No. 01 to Purchase Agreement No.PA-03784, dated September  27, 2012 (filed as Exhibit 10.2 to UAL’s Form10-Q for the quarter ended September  30, 2012, Commission file number1-6033, and incorporated herein by reference)
*^10.176UAL
United
Supplemental Agreement No. 02 to Purchase Agreement NumberPA-03784, dated March  1, 2013 (filed as Exhibit 10.3 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.177UAL
United
Supplemental Agreement No. 03 to Purchase Agreement NumberPA-03784, dated June  27, 2013 (filed as Exhibit 10.7 to UAL’s Form10-Q for the quarter ended June 30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.178UAL
United
Supplemental Agreement No. 04 to Purchase Agreement NumberPA-03784, dated September  11, 2013 (filed as Exhibit 10.2 to UAL’s Form10-Q for the quarter ended September  30, 2013, Commission file number1-6033, and incorporated herein by reference)
*^10.179UAL
United
Supplemental Agreement No. 05 to Purchase Agreement NumberPA-03784, dated March  3, 2014 (filed as Exhibit 10.2 to UAL’s Form10-Q for the quarter ended June 30, 2014, Commission file number1-6033 and incorporated herein by reference)
*^10.180UAL
United
Supplemental Agreement No. 06 to Purchase Agreement NumberPA-03784, dated June  6, 2014 (filed as Exhibit 10.3 to UAL’s Form10-Q for the quarter ended June 30, 2014, Commission file number1-6033, and incorporated herein by reference)
*^10.181UAL
United
Supplemental Agreement No. 07 to Purchase Agreement NumberPA-03784, dated May  26, 2015 (filed as Exhibit 10.6 to UAL’s Form10-Q for the quarter ended June 30, 2015, Commission file number1-10323 and incorporated herein by reference)

*^10.182UAL
United
Supplemental Agreement No. 08 to Purchase Agreement NumberPA-03784, dated June  12, 2015 (filed as Exhibit 10.7 to UAL’s Form10-Q for the quarter ended June 30, 2015, Commission file number1-10323 and incorporated herein by reference)
*^10.183UAL
United
Supplemental Agreement No. 9 to Purchase Agreement No. 03784, dated January  20, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.2 to UAL’s Form10-Q for the quarter ended March  31, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.184UAL
United
Supplemental Agreement No. 10 to Purchase Agreement No. 03784, dated February  8, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.4 to UAL’s Form10-Q for the quarter ended March  31, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.185UAL
United
Supplemental Agreement No. 11 to Purchase Agreement Number No. 03784, dated March  7, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.6 to UAL’s Form10-Q for the quarter ended March  31, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.186UAL
United
Supplemental Agreement No. 12 to Purchase Agreement No. 03784, dated June  24, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.7 to UAL’s Form10-Q for the quarter ended June  30, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.187UAL
United
Supplemental Agreement No. 13 to Purchase Agreement No. 03784, dated December  27, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.174 to UAL’s Form10-K for the year ended December  31, 2016, Commission file number1-6033, and incorporated herein by reference)
*^10.188UAL
United
Purchase Agreement No.PA-03776, dated July 12, 2012, between The Boeing Company and United Continental Holdings, Inc. (filed as Exhibit 10.3 to UAL’sUAL's Form10-Q for the quarter ended September 30, 2012, Commission file number1-6033, and incorporated herein by reference)
 *^10.189 
 ^10.45UAL

United
 *^10.190 
 ^10.46UAL

United
 *^10.191 
 ^10.47UAL

United
 *^10.192 
 ^10.48UAL

United
 *^10.193 
 ^10.49UAL

United

 *^10.194 
 ^10.50UAL

United
 *^10.195 
 ^10.51UAL

United
 *^10.196 
 ^10.52UAL

United
 *^10.197 
 ^10.53UAL

United

 *^10.198^10.54UAL

United
 *^10.199
 ^10.55UAL
United
  
 ^10.56UAL

United
 
 ^10.57UAL
United
 ^10.58UAL
United
 *^10.200 
 ^10.59UAL

United
 *^10.201 
 ^10.60UAL

United
 *^10.202 
 ^10.61UAL

United
 *^10.203 
 ^10.62UAL

United
 *^10.204 
 ^10.63UAL

United

 *^10.205 
 ^10.64UAL

United
 *^10.206 
 ^10.65UAL

United
 *^10.207 
 ^10.66UAL

United
 *^10.208 
 ^10.67UAL

United
 *^10.209 
 ^10.68UAL

United
 *^10.210 
 ^10.69UAL

United
*^10.211UAL
United
Amendment No. 3, dated March 14, 2017, to Airbus A350-900XWB Purchase Agreement, dated March  5, 2010, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended March  31, 2017, Commission file number1-6033, and incorporated herein by reference)
*^10.212UAL
United
Amended andRestated A350-900 Purchase Agreement, dated September  1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended September  30, 2017, Commission file number1-6033, and incorporated herein by reference)
  *10.213UAL
United
Credit and Guaranty Agreement, dated as of March 27, 2013, among Continental Airlines, Inc. and United Air Lines, Inc., asco-borrowers, United Continental Holdings, Inc., as parent and a guarantor, the subsidiaries of United Continental Holdings, Inc. other than theco-borrowers party thereto from time to time, as guarantors, the lenders party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent (filed as Exhibit 10.1 to UAL’s Form8-K filed March 28, 2013, Commission file number1-6033, and incorporated herein by reference)
  *10.214UAL
United
First Amendment to Credit and Guaranty Agreement, dated as of March 27, 2014 (filed as Exhibit 10.1 to UAL’s Form10-Q for the quarter ended March 31, 2014, Commission file number1-6033, and incorporated herein by reference)


  *10.215 UAL
United
Second Amendment to Credit and Guaranty Agreement, dated as of July 25, 2014 (filed as Exhibit 10.1 to UAL’s Form8-K filed September 19, 2014, Commission file number1-6033, and incorporated herein by reference)
   *10.216^10.70UAL

United
  *10.217UAL
United
Fourth Amendment to Credit and Guaranty Agreement,No. 3860, dated as of May 24, 201631, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.410.3 to UAL’sUAL's Form10-Q for the quarter ended June 30, 2016,2018, Commission file number1-6033, and incorporated herein by reference)
  *10.218
 ^10.71UAL
United
  
^10.72UAL

United
 
10.73UAL
United
  10.219 
10.74UAL

United

Computation of Ratios

  12.1 
10.75UAL
United
  12.2 UnitedUnited Airlines, Inc. and Subsidiary Companies Computation of Ratio of Earnings to Fixed Charges

List of Subsidiaries

  21List of Subsidiaries
  

UAL

United

21
UAL
United
 
 

Consents of Experts and Counsel

  23.1 
23.1UAL
  23.2 
23.2United

Rule13a-14(a)/15d-14(a) Certifications

  31.1
Rule 13a-14(a)/15d-14(a) Certifications
  
31.1UAL
  31.2 
31.2UAL
  31.3 
31.3United
  31.4 
31.4United

Section 1350 Certifications

  32.1
Section 1350 Certifications
  
32.1UAL
  32.2 
32.2United
 
 

Interactive Data File


  101Interactive Data File
  

UAL

United

101
UAL
United
The following materialsfinancial statements from eachthe combined Annual Report of United Continental Holdings, Inc.‘sUAL and United Airlines, Inc.‘s Annual Reports on Form10-K for the year ended December, 31, 2017,2019, formatted in XBRL (Extensible Business Reporting Language):Inline XBRL: (i) the Statements of Consolidated Operations, (ii) the Statements of Consolidated Comprehensive Income (Loss), (iii) the Consolidated Balance Sheets, (iv) the Statements of Consolidated Cash Flows, (v) the Statements of Consolidated Stockholders’Stockholders' Equity (Deficit) and (vi) the Combined Notes to Condensed Consolidated Financial Statements.Statements, tagged as blocks of text and including detailed tags.
104
UAL
United
Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document

*Previously filed.
Indicates management contract or compensatory plan or arrangement. Pursuant to Item 601(b)(10), United is permitted to omit certain compensation-related exhibits from this report and therefore only UAL is identified as the registrant for purposes of those items.
^Confidential portionPortions of thisthe referenced exhibit hashave been omitted and filed separately with the SEC pursuant to a request for confidential treatment.Item 601(b) of Regulation S-K.

ITEM 16.FORM10-K SUMMARY.

None.




SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

UNITED CONTINENTALAIRLINES HOLDINGS, INC.

UNITED AIRLINES, INC.

(Registrants)

By:

 

 /s/ Andrew C. Levy

/s/ Gerald Laderman
 

 Andrew C. Levy

Gerald Laderman
 

Executive Vice President and Chief Financial

Officer

Date:February 24, 2020

Date: February 22, 2018



Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of United ContinentalAirlines Holdings, Inc. and in the capacities and on the date indicated.

Signature                     

 

Capacity                         

 /s/ Oscar Munoz

 Oscar Munoz

 

/s/ Oscar MunozChief Executive Officer, Director

Oscar Munoz(Principal Executive Officer)

 /s/ Andrew C. Levy

 Andrew C. Levy

 

/s/ Gerald LadermanExecutive Vice President and Chief Financial Officer

Gerald Laderman(Principal Financial Officer)

/s/ Chris KennyVice President and Controller
Chris Kenny(Principal Accounting Officer)
/s/ Carolyn CorviDirector
Carolyn Corvi
/s/ Jane C. GarveyDirector
Jane C. Garvey
/s/ Barney HarfordDirector
Barney Harford
/s/ Michele J. HooperDirector
Michele J. Hooper
/s/ Todd M. InslerDirector
Todd M. Insler

/s/ Walter IsaacsonDirector
Walter Isaacson
/s/ James A.C. KennedyDirector
James A.C. Kennedy
/s/ Sito PantojaDirector
Sito Pantoja
/s/ Edward M. PhilipDirector
Edward M. Philip
/s/ Edward L. ShapiroDirector
Edward L. Shapiro
/s/ David J. VitaleDirector
David J. Vitale
/s/ James M. WhitehurstDirector
James M. Whitehurst

 /s/ Chris Kenny

 Chris Kenny

Date:

Vice President and Controller

(Principal Accounting Officer)

 /s/ Carolyn Corvi

 Carolyn Corvi

Director

 /s/ Jane C. Garvey

 Jane C. Garvey

Director

 /s/ Barney Harford

 Barney Harford

Director

 /s/ Todd M. Insler

 Todd M. Insler

Director

 /s/ Walter Isaacson

 Walter Isaacson

Director

February 24, 2020

Signature                     

Capacity                     

 /s/ James A.C. Kennedy

 James A.C. Kennedy

Director

 /s/ Robert A. Milton

 Robert A. Milton

Director

 /s/ William R. Nuti

 William R. Nuti

Director

 /s/ Sito Pantoja

 Sito Pantoja

Director

 /s/ Edward M. Philip

 Edward M. Philip

Director

 /s/ Edward L. Shapiro

 Edward L. Shapiro

Director

 /s/ Laurence E. Simmons

 Laurence E. Simmons

Director

 /s/ David J. Vitale

 David J. Vitale

Director

 /s/ James M. Whitehurst

 James M. Whitehurst

Director

Date:    February 22, 2018




























Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of United Airlines, Inc. and in the capacities and on the date indicated.


Signature                     

 

Capacity                         

 /s/ Oscar Munoz

 Oscar Munoz

 

/s/ Oscar MunozChief Executive Officer, Director

Oscar Munoz(Principal Executive Officer)

 /s/ Andrew C. Levy

 Andrew C. Levy

 

/s/ Gerald LadermanExecutive Vice President and Chief Financial Officer, Director

Gerald Laderman(Principal Financial Officer)

/s/ Chris KennyVice President and Controller
Chris Kenny(Principal Accounting Officer)
/s/ Gregory L. HartDirector
Gregory L. Hart
/s/ J. Scott KirbyDirector
J. Scott Kirby

 /s/ Chris Kenny

 Chris Kenny

Date:

Vice President and Controller

(Principal Accounting Officer)

 /s/ Gregory L. Hart

 Gregory L. Hart

Director

 /s/ J. Scott Kirby

 J. Scott Kirby

Director

February 24, 2020

Date:    February 22, 2018





Schedule II

Valuation and Qualifying Accounts

For the Years Ended December 31, 2019, 2018 and 2017 2016 and 2015

(In millions)

 

Description

  Balance at
Beginning of
Period
   Additions
Charged to
Costs and
Expenses
   Deductions
(a)
   Other   Balance at
End of
Period
 

Allowance for doubtful accounts—UAL and United:

          

2017

   $10     $20     $23     $—     $ 

2016

   18     18     26     —     10  

2015

   22     25     29     —     18  

Obsolescence allowance—spare parts—UAL and United:

          

2017

   $295     $75     $17     $    $354  

2016

   235     61     16     15     295  

2015

   169     38     —     28     235  

Valuation allowance for deferred tax assets—UAL:

          

2017

   $68     $11      $27     $11     $63  

2016

   48     47     27     —     68  

2015

   4,751     —     4,703     —     48  

Valuation allowance for deferred tax assets—United:

          

2017

   $68     $11     $27     $11     $63  

2016

   48     47     27     —     68  

2015

   4,721     —     4,673     —     48  

(a) Deduction from reserve for purpose for which reserve was created.

135

(In millions)
 
Description
Balance at
Beginning of
Period
 
Additions
Charged to
Costs and
Expenses
 Deductions Other 
Balance at
End of
Period
Allowance for doubtful accounts:         
2019$8
 $17
 $16
 $
 $9
20187
 17
 16
 
 8
201710
 20
 23
 
 7
Obsolescence allowance—spare parts:         
2019$412
 $76
 $63
 $
 $425
2018354
 73
 15
 
 412
2017295
 75
 17
 1
 354
Valuation allowance for deferred tax assets:         
2019$59
 $
 $1
 $
 $58
201863
 2
 6
 
 59
201768
 11
 27
 11
 63



106