0000040533 us-gaap:OperatingSegmentsMember gd:AerospaceMember 2018-12-31





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UNITEDUNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K
FORM 10-K


(Mark One)
[X]] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


For the fiscal year ended December 31, 20172019
OR
[] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


For the transition period from _______ to _______


Commission File Number 1-3671


GENERAL DYNAMICS CORPORATION
(Exact name of registrant as specified in its charter)
Delaware 13-1673581
State or other jurisdiction of incorporation or organization IRS Employer Identification No.
   
2941 Fairview Park Drive, Suite 100
Falls Church, 11011 Sunset Hills Road
Reston,Virginia 22042-451320190
Address of principal executive offices Zip code


Registrant’s telephone number, including area code:
(703)876-3000


Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common stock par value $1 per shareGDNew York Stock Exchange


Securities registered pursuant to Section 12(g) of the Act:
None


Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yesü 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. Yes ___ Noü
Indicate by check mark whether the registrant (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 registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yesü 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 Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yesü No ___
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K 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 this Form 10-K or any amendment of this Form 10-K. ___
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 accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerü Accelerated filer __ Non-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. __
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No ü
The aggregate market value of the voting common equity held by non-affiliates of the registrant was $52,357,779,347$48,851,568,997 as of July 2, 2017June 30, 2019 (based on the closing price of the shares on the New York Stock Exchange).
296,933,621289,627,333 shares of the registrant’s common stock, $1 par value per share, were outstanding on January 28, 2018.26, 2020.
DOCUMENTS INCORPORATED BY REFERENCE:
Part III incorporates by reference information from certain portions of the registrant’s definitive proxy statement for the 20182020 annual meeting of shareholders to be filed with the Securities and Exchange Commission within 120 days after the close of the fiscal year.





INDEX



PARTI

PARTI

ITEM 1. BUSINESS
(Dollars in millions, except per-share amounts or unless otherwise noted)


BUSINESS OVERVIEW
General Dynamics is a global aerospace and defense company that offers a broad portfolio of products and services in business aviation; combat vehicles, weapons systems and munitions; information technology (IT) services and C4ISR (command,services; command, control, communications, computers, intelligence, surveillance and reconnaissance)reconnaissance (C4ISR) solutions; and shipbuilding and ship repair.
General Dynamics was incorporated in Delaware in 1952. The company grew organically and through acquisitions until the early 1990s when we sold nearly our entire portfolio except for our military-vehicle and submarine businesses. StartingWe took actions beginning in the mid-1990s we began expanding again bythat laid the foundation for modern-day General Dynamics, including acquiring Gulfstream Aerospace Corporation, combat-vehicle-relatedcombat-vehicle businesses, IT productservices and serviceC4ISR solutions companies, and additional shipyards, forming the foundation ofshipyards. In 2018, we continued to position our company today.
We continue to expand our business through organicfor future growth and acquisitions. We focus on delivering superior products and servicesprofitability through the acquisition of CSRA, our largest acquisition to our customers, and creating value for our shareholders through a relentless focus on operational excellence and continuous improvement.date.
Our company isconsists of 10 business units, which are organized into four business groups:five operating segments: Aerospace, Combat Systems, Information Technology, Mission Systems and Technology, and Marine Systems. We refer to the latter four segments collectively as our defense segments. We have a balanced business model which gives each business unit the flexibility to stay agile and maintain an intimate understanding of customer requirements. Each groupbusiness unit is comprisedresponsible for the execution of two or more business units. Each unit has responsibility for its strategy and operational performance, providing the flexibility needed to stay close to customers, perform on programs and remain agile.performance. Our corporate headquarters isleaders set the overall strategy and governance for the company and are responsible for setting the strategic directionallocating and governance of the company, the allocation of capitaldeploying capital. Our ethos — based on honesty, transparency, trust and promoting aalignment — undergirds our culture, of ethicsour business model and integrity that defines how we operate. Our management team deliversour decision-making. This unique model keeps us focused on our commitments to shareholders through disciplined execution of our robust backlog, efficient cash-flow conversion and prudent capital deployment. We focuspriorities: exceeding customer expectations; executing on backlog; managing costs,costs; implementing continuous improvement initiativesimprovement; and collaborating across our businesses to achieve our goals of maximizing earnings, and cash and driving return on invested capital.
Following is additional information on each of our business groups. Prior-period information has been restated for the adoption of Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers, which we adopted on January 1, 2017, as discussed in Note T to the Consolidated Financial Statements in Item 8. For selected financial information, see Note R to the Consolidated Financial Statements in Item 8.operating segments.
AEROSPACE
Our Aerospace groupsegment is at the forefront of the business-jet industry. The segment consists of our Gulfstream and Jet Aviation business units. We deliveroffer a family of Gulfstream aircraft and provide a full range of services for Gulfstream aircraft andbusiness aircraft produced by Gulfstream and other original equipment manufacturers (OEMs). The Aerospace group is known for:manufacturers. We have earned our reputation through:
superior aircraft design, quality, performance, safety and reliability;
technologically advanced cockpitflight deck and cabin systems; and
industry-leading product servicecustomer support.
Gulfstream designs, manufactures and support.


At Gulfstream, we design, develop, manufacture, service and supportsupports the world’s most technologically advanced business-jet aircraft. Our product line includesencompasses aircraft across a spectrumvariety of price and performance options in the large- and mid-cabin business-jet market. The varying ranges, speeds and cabin dimensions of these aircraft are well-suited for the needs of a diverse, global customer base.
We invest in Gulfstreamfrom mid- to introduce new products and first-to-market enhancements that broaden customer choice, improve aircraft performance and set new standards for customer safety, comfort and in-flight productivity. We created a new market with the G650 family ofultra-large-cabin business jets. The G650 is the fastest non-supersonicmany combinations of range, speed, size and cabin customization generate aircraft to circumnavigate the globe, having flown westbound around the world in a record-setting 41 hours and 7 minutes. The G650 and G650ER have claimed 70 world speed records. The G650 also earned the National Aeronautic Association’s Robert J. Collier Trophy, an annual award recognizing the greatest achievement in U.S. aeronautics or astronautics with respect to improving performance, efficiency and safety. In 2017, we celebrated the five-year anniversary of the G650’s type certification from the Federal Aviation Administration (FAA) and its entry into service. Today, there are more than 280 G650 and G650ER aircraft operating in 40 countries.best suited for each customer’s unique requirements.
Our newest Gulfstream products are two clean-sheet large-cabin business jets, the G500disciplined and G600, which exemplify our commitmentconsistent approach to performance, safety, efficiency and innovation. The aircraft are progressing through concurrent flight-test programs in preparation for FAA certification. Five G500 test aircraft have completed more than 4,200 test hours since first flight in 2015, and five G600 aircraft have accumulated more than 1,300 test hours since first flight in 2016. Both aircraft have exceeded original expectations throughout our rigorous flight test program. In late 2017, we announced increased performancenew product development allows us to repeatedly introduce first-to-market capabilities that set industry standards for both aircraft. At Mach 0.85, the G500 can fly 5,200 nautical miles,safety, performance, quality, speed and the G600 can fly 6,500 nautical miles. The performance of these aircraft demonstrate our culture of continuous improvement and the discipline and rigor inherent in our design, development and flight-test programs.comfort.


Our productcontinual investment in research and development (R&D) leads to new aircraft that consistently broaden customer offerings while raising the bar for safety and performance. Product enhancement and development efforts include initiatives in advanced avionics, composites, renewable fuels, flight-control and vision systems, acoustics, and cabin technologiestechnologies. As part of its sustainability strategy, Gulfstream, in 2019, made its first customer sales of sustainable aviation fuel.
In 2019, the all-new G600 earned both its type and vision systems. One example isproduction certificates from the Symmetry Flight Deck introduced withU.S. Federal Aviation Administration (FAA), and we delivered the first aircraft to customers. The G600 has a range of 6,500 nautical miles at a cruise speed of Mach 0.85 and a maximum operating speed of Mach 0.925. The aircraft has earned 11 city-pair speed records and has low cabin altitude air pressure to reduce travel fatigue. The G600 joins the G500, which achieved its certifications and first customer deliveries in 2018. Both aircraft reflect our consistent, long-term investment in R&D, and both have seen strong customer interest. The G500 and G600 which includes 10 touchscreens and active control sidesticks, a firstreceived Aviation Week’s 2020 Platform Laureate Award for extraordinary achievement in business aviation.
The touchscreens improve how pilots interactultra-long-range, ultra-large-cabin G650 and G650ER continue to generate significant customer interest, with onboard systems,more than 400 aircraft of this family currently operating in 40 countries. Since the first G650 entered service in 2012, its capabilities and reliability have led to significant sales and installed base around the sidesticks are digitally linkedglobe. In 2019, the G650ER continued to allow both pilotsdemonstrate superior speed and range capabilities, conducting a record-setting flight from Singapore to see and feel each other’s control inputs, enhancing situational awareness and further improving safetyTucson, Arizona, over a distance of 8,379 nautical miles at an average speed of 597 miles per hour (Mach 0.85).
In October, we announced the launch of the aircraft.ultra-long-range G700, which we expect will enter service in 2022. The G700 is designed to blend our most spacious cabin with the advanced Symmetry flight deck and superior high-speed performance to enable a range of 7,500 nautical miles at Mach 0.85 or 6,400 nautical miles at Mach 0.90. There is already significant customer interest in this new product in both the domestic and international markets.
Gulfstream designs, develops and manufactures aircraft in Savannah, Georgia, including manufacturing of all large-cabin models. The mid-cabin modelG280 is assembled by a non-U.S. partner. All models are outfitted in the group’sGulfstream’s U.S. facilities. In support of Gulfstream’s growing aircraft portfolio and customer base, we continue to invest in our facilities. At our Savannah campus, we have constructedadded new purpose-built manufacturing facilities, including purpose-built G500, G600 and G650 manufacturing facilities; increased aircraft service capacity;capacity, and opened a new product-supportcustomer-support distribution center and a dedicated research and development centers.R&D center.
The group offers extensiveWe offer comprehensive support for the more than 2,6002,800 Gulfstream aircraft in service around the world withand operate the largest factory-owned service network in the business-aviation industry, including professionals located around the globe. The service network for Gulfstream aircraft continues to evolve to address the demands of our growing customer base.industry. We operate 12 company-owned service centers worldwide and have more than 20 factory-authorized service centers and authorized warranty facilities. We also operate a 24-hour-per-day/365-day-per-year24/7 year-round Customer ContactSupport Center and offer on-call Gulfstream aircraft technicians ready to deploy around the world for customer-service requirements, providingcustomer service requirements.
In 2019, we opened a new maintenance, support on every continent.repair and overhaul (MRO) facility in Savannah to accommodate fleet growth, giving Gulfstream more than one-million square feet of dedicated MRO hangar, office and shop space in Savannah. We also significantly expanded our MRO service center in Appleton, Wisconsin, which now has more than 100,000 square feet of hangar space, enough to accommodate 12 G650ER aircraft.
In 2019, Gulfstream and Jet Aviation opened a new 10,000-square-foot terminal and 43,000-square-foot hangar at Van Nuys, the primary business-aviation airport servicing the Los Angeles area. Gulfstream utilizes the space as an MRO service center, its second in the area complementing its Long Beach facility. Van Nuys will serve as the operating base for Gulfstream’s local Field and Airborne Support Team (FAST), a rapid-response unit that specializes in troubleshooting grounded aircraft. Jet Aviation uses the space as a fixed-base operator (FBO) facility and became the first FBO at Van Nuys to offer sustainable aviation fuel.


Jet Aviation has been a global leader in business aviationbusiness-aviation services for over 50 years, providing comprehensive services and an extensive network of locations for aircraft owners and operators. With approximately 30


50 airport facilitiessites throughout Asia, the Caribbean,North America, Europe, the Middle East and North America,Asia Pacific, our service offerings include maintenance, fixed-base operations (FBO),FBO, aircraft management, charter, staffing and staffinggovernment fleet services.
In response2019, we continued to customer demand and the growing installed base of aircraft around the world, we have expanded Jet Aviation’s service network over the past several years and continue to do so. We are expandinggrow our maintenance and FBO facilityglobal footprint, conducting acquisitions, expansions or significant renovations in Singapore, and in 2017 we opened a new FBO and hangar in Bedford, Massachusetts, and an FBO facility in Dubai, United Arab Emirates. We also took over the management of an FBO at Luis Muñoz Marin International Airport inkey business-aviation markets including Teterboro, New Jersey; Dallas, Texas; Scottsdale, Arizona; San Juan, Puerto Rico,Rico; West Palm Beach, Florida; and we acquired an FBOthe Middle East. With its relentless devotion to customer service, Jet Aviation was named Fixed Base Operator of the Year at Washington Dulles International Airport that has six hangars, 10 acres of ramp space and a newly renovated FBO terminal building.the 2019 Aviation Business Awards.
In addition to these capabilities, Jet Aviation manages nearly 300 business aircraft globally on behalf of individual and corporate owners. Jet Aviation also offers custom complex completions for narrow- and wide-body aircraft. We are expanding ourincreased the capacity of Jet Aviation’s wide-body hangar in Basel, Switzerland, facility to accommodate increased94,000 square feet, to fulfill the demand for wide-body completions and refurbishments.
As a market leader in the business-aviation industry, the Aerospace groupsegment is focused on developing innovative first-to-market technologies and products; providing exemplary and timely service to customers globally; and driving efficiencies in the aircraft production, outfittingcompletions and service processes.services.
Revenue for the Aerospace groupsegment was 26%25% of our consolidated revenue in 20172019, 23% in 2018 and 2016 and 29%26% in 2015.2017. Revenue by major products and services was as follows:
Year Ended December 312017 2016 20152019 2018 2017
Aircraft manufacturing, outfitting and completions$6,320
 $6,074
 $7,497
Aircraft manufacturing and completions$7,355
 $6,226
 $6,320
Aircraft services1,743
 1,625
 1,569
2,154
 2,096
 1,743
Pre-owned aircraft66
 116
 111
292
 133
 66
Total Aerospace$8,129
 $7,815
 $9,177
$9,801
 $8,455
 $8,129
COMBAT SYSTEMS
Our Combat Systems groupsegment offers combat vehicles, weapons systems and munitions for the U.S. government and its allies around the world.non-U.S. partners. We are a platform solutions provider, offering market-leading design, development, production, modernization and sustainment services. With extensive diverse and proven product lines, we have the agility to deliver tailored solutions for diverse customer-mission needs. Our Combat Systems segment is well-positioned to serve the growing needs of its largest customer, the U.S. Army, as it increases the readiness of its current force and modernizes for the future, while at the same time meeting the growing international demand driven by the global threat environment. We work closely with the U.S. Army Futures Command to meet a wide arrayits critical modernization objectives, currently participating in five of customer mission needs. Comprisedits cross-functional teams. Our large installed base of wheeled and tracked vehicles around the world and expertise gained from innovative research, engineering and production programs position us well for modernization programs, support and sustainment services, and future development programs.
Our Combat Systems segment consists of three business units,units: European Land Systems, Land Systems, and Ordnance and Tactical Systems, the group’sSystems. The segment’s product lines include:
wheeled combat and tactical vehicles;
main battle tanks and tracked combat vehicles;

weapons systems, armament and munitions; and
maintenance, logistics support and sustainment services.


Wheeled combat and tactical vehicles: The groupsegment provides a full spectrumrange of vehicles to a global customer base. base, which includes vehicles in over 20 countries.
The Stryker is an eight-wheeled, medium-weight Stryker combat vehicle continues to prove itself as one of the most versatile vehicles in the U.S. Army’s fleet, combiningthat combines mobility and survivability into a deployable and responsive combat support vehicle. There aresurvivability. Over 3,300 Strykers have been fielded to date. Strykers come in 11 Strykerdifferent variants, with 85%approximately 70% commonality across the fleet. We are working with the Army to convert all nine of its Stryker Brigade Combat Teams to our patented double-V-hull configuration, which significantly improves protection for soldiers. We are modernizing the Stryker by upgrading the vehicles’ power train, suspension and network capabilities, with the first of these vehicles delivered in September 2017.


We continue to innovate and demonstrate ways in which the Stryker can be modified to helpaddress the Army’s evolving operational needs.
In 2018, the Army meet its urgent operational needs.made the decision to upgrade all nine Stryker brigades to the Stryker A1 configuration. We are currently under contract for two of the brigades, with estimated completion in 2021. The Stryker A1 builds upon the combat-proven double-V-hull (DVH) configuration, providing significantly higher rates of survivability against mines and improvised explosive devices. In 2015,addition to the DVH survivability, the Stryker A1 provides a 50% power upgrade with a 450-horsepower engine, 60,000-pound suspension to improve cross-country mobility, 910-amp alternator for power and growth margin, and an improved digital, in-vehicle network. It is among the most versatile, mobile and safe personnel carriers in the Army identified a requirement to increase the lethality of Strykers, and through internal research and development (R&D) and an accelerated acquisition effort, we are adding a 30-millimeter, remotely-operated cannon to 83 Stryker Infantry Carrier Vehicles. We delivered the first prototype in 2016, 15 months after the initial contract award. inventory.
The first production vehicle was sent to the Germany-based 2nd Cavalry Regiment in December 2017. Another example is our Stryker Maneuver SHORAD Launcher (MSL)Short-Range Air Defense vehicle which(M-SHORAD) program integrates an air defense mission package onto a reconfigured Stryker A1 vehicle. The M-SHORAD vehicle is another variation we quickly developed to address the Army’s directed requirement to counter closer-in air and missile defense threats by integrating an air defense system missile launcherthreats. We also produce the Stryker Infantry Carrier Vehicle Dragoon (ICVD), which delivers greater firepower via a 30mm weapon system. First delivered in 2017, the Army announced in 2019 that it would outfit three brigades with the medium caliber weapons system. We continue to work on high-energy laser and mobile command post options. We expect the Stryker platform to continue to demonstrate its versatility well into the future.
In 2019, the Royal Thai Army took delivery of the first set of Stryker fighting vehicles purchased through a reconfiguredforeign military sale contract for $175 that includes 60 Stryker vehicle.vehicles with equipment and support. Thailand is the first country to receive Stryker vehicles under export.
The group hasWe also have a market-leading position in light armored vehicles (LAVs) with more than 13,000 vehicles deliveredin service around the world. We offerOur LAVs combine advanced technologies combined withand combat-proven survivability. We are upgrading the Canadian Army’s fleet of LAVs to increase mobility, survivability and lethality, as well as enhancingenhance the vehicles’vehicle’s surveillance suite. Additionally, in 2019 we were awarded a contract from Canada for 360 combat support LAVs in eight variants for $1.3 billion. We also haveprovide, under a $10 billion contract to providewith the Canadian government, wheeled armored vehicles along withfor export and associated logistics support for a Middle Eastern customer through 2024.
We deliver high-mobility, versatile Pandur and Piranha armored vehicles.vehicles to non-U.S. customers. The Pandur family of vehicles serves as a common platform for various armament and equipment configurations and theconfigurations. The Piranha is a multi-role vehicle well-suited for a variety of combat operations. In 2017, we receivedWe are producing Piranha vehicles for Denmark, Romania and Switzerland, and upgrading Piranha vehicles for Ireland. We continue to work closely with the Spanish government to achieve a contract fromaward to produce 348 8x8 vehicles based on the Austrian Army to supply Pandur 6x6 armored vehicles. We are delivering more than 300 Piranha vehicles5 vehicle in six variants to the Danish Ministry of Defence for its armored personnel carrier program, as well as sustaining the vehiclesand provide associated logistical support. There are over 3,000 Pandurs and 11,000 Piranhas in the future. The Spanish Army selected the Piranha as its 8x8 armored fighting vehicle, and we are now performing extensive technological trials in anticipation of a production contract. In addition, we are producing Piranha armored vehicles for Ireland, Romania and Switzerland.service worldwide.
The group offers a range of light tactical vehicles to global customers. The Flyer is a lightweight, modular vehicle built for speed and mobility that allows access to previously unreachable terrain in demanding environments. We are delivering this family of vehicles for the U.S. Special Operations Command and the Army’s Ground Mobility Vehicle programs. Outside the United States, the Duro and Eagle vehicles offer a range of options in the 6- to 15-tonand weight class.classes. We are upgrading Duro tactical vehicles for the Swiss Army through 2022 and deliveringproducing Eagle 5 armored patrolwheeled vehicles for the Royal Danish Army. Additionally, we provide a portfolio of mobile bridge systems with payloads ranging from 100 kilograms to the Danish Army, with initial deliveries scheduled for 2018.100 tons, which can be deployed within minutes to enable heavy vehicles, including Abrams tanks, to cross various sizes of water barriers.
TanksMain battle tanks and tracked combat vehicles: Combat Systems’ The segment’s powerful tracked vehicles provide key combat capabilities to customers around the world. The Abrams main battle tank offers a proven, decisive


edge in combat. We are maximizing the effectiveness and lethality of the U.S. Army’s M1A2 Abrams tank fleet with the System Enhancement Package Version 3 (SEPv3), providingwhich provides technological advancements in communications, power generation, fuel efficiency and improved armor. Internationally,In 2019, we were awarded a contract for $714 from the group isArmy to upgrade 174 M1A1 Abrams main battle tanks to the state-of-the-art M1A2 SEPv3 configuration. This brings the total number of M1A2 SEPv3 tanks ordered by the Army since 2018 to 274, or more than three brigades of tanks. We are currently under contract to develop further upgrades for the SEPv4 configuration. Additionally, we are upgrading Abrams tanks for several U.S. allies, including Kuwait, Morocconon-U.S. partners.
We are delivering 12 medium-weight, large-caliber prototype vehicles for the Army’s Mobile Protected Firepower program, providing a new opportunity to field vehicles in Infantry Brigade Combat Team (IBCT) formations using our newest combat-proven capabilities suite. The vehicles are highly lethal, survivable and Saudi Arabia. In 2017, we received an award to upgrade up to 786 Abrams tanks to the SEPv3 configuration. Additional modernization efforts include integrating multiple engineering changes into the SEPv3 to design and develop SEPv4 prototypes with upgraded sensors.mobile.
The ASCOD is a highly versatile tracked combat vehicle with multiple versions, including the Spanish Pizarro and the Austrian Ulan. Currently the group isWe are producing the British Army’s AJAX armouredarmored fighting vehicle, a next-generation, version of the ASCOD. In addition to production, the groupmedium-weight tracked combat vehicle. The segment will also provide in-service support for the AJAX vehicle fleet. With six variants, the AJAX family of vehicles offers advanced electronic architecture and proven technology for an unparalleled balance of protection, survivability, lethality and mobility, along with high reliability for a vehicle in its weight class. In 2017,Work on the AJAX vehicles underwent extensive testing trialsprogram is transitioning from engineering to test and then to full production. We expect to be in preparation for delivery to the British Army, including successful manned live firing trials. The vehicle is scheduled to begin entering into service in 2020.steady-state production through 2024.


With our large installed base of wheeled and tracked vehicles around the world and the expertise gained from our innovative research, engineering and production programs, we are well-positioned for vehicle modernization programs, support and sustainment services and future development programs.
Weapons systems, armament and munitions: Complementing these military-vehicle offerings, the groupsegment designs, develops and produces a comprehensive array of sophisticated weapons systems. For ground forces, we manufacture M2/M2-A1 heavy machine guns and MK19/MK47 grenade launchers. The groupsegment also produces legacy and next-generation weapons systems for shipboard applications. For airborne platforms, we produce weapons for fighter aircraft, includingsuch as high-speed Gatling guns for all U.S. fixed-wing military aircraft.fighter aircraft, including the Joint Strike Fighter.
Our munitions portfolio covers the full breadth of naval, air and ground forces applications across all calibers and weapons platforms for the U.S. government and its allies.non-U.S. partners. In North America, the groupsegment maintains a market-leading position in the supply of Hydra-70 rockets, large-caliber tank ammunition, medium-caliber ammunition, mortar and artillery projectiles, tactical missile aerostructures, and high-performance warheads;warheads, military propellants;propellants, and conventional bombs and bomb cases.
The Combat Systems groupsegment emphasizes operational executionexcellence and continuous process improvements to enhance our productivity. In animprovement in a dynamic threat environment of uncertain threats and evolvingwith ever-evolving customer needs, the group isneeds. We are focused on innovation, affordability and speed-to-marketspeed to market to deliver increased survivability, performance and survivable, mission-effective products.lethality on the battlefield.
Revenue for the Combat Systems groupsegment was 19%18% of our consolidated revenue in 20172019, 17% in 2018 and 18%19% in 2016 and 2015.2017. Revenue by major products and services was as follows:
Year Ended December 312017 2016 20152019 2018 2017
Wheeled combat and tactical vehicles$2,506
 $2,444
 $2,597
Military vehicles$4,620
 $4,027
 $3,731
Weapons systems, armament and munitions1,633
 1,517
 1,508
1,906
 1,798
 1,633
Tanks and tracked vehicles1,225
 934
 805
Engineering and other services585
 635
 733
481
 416
 585
Total Combat Systems$5,949
 $5,530
 $5,643
$7,007
 $6,241
 $5,949


INFORMATION SYSTEMS AND TECHNOLOGY
Our Information SystemsTechnology segment provides a wide spectrum of services and Technology group providescapabilities, including artificial intelligence, cloud computing, cyber, software development, systems engineering, IT modernization and data analytics. We put these technologies productsto work across thousands of projects, combining in-depth technical expertise with deep mission knowledge for a broad spectrum of customers in the defense, intelligence and servicesfederal civilian markets.
With a network of more than 90 global partners, we develop solutions that keep our customers at the leading edge of technology in support of thousands of programs for a wide range of military, federal civilian, state and local customers. The group’s market leadership results from decades of domain expertise, incumbency on high-priority programs and continuous innovationtheir missions. Our highly skilled workforce is central to meet the ever-changing information-systems and mission-support needs of our customers. The group’s diverse portfolio includes:of services and comprises over 30,000 employees, including technologists, mission experts and cleared personnel. This portfolio aligns to three broad capability categories:
IT solutions and mission-support services;
mobile communication, computers and command-and-control (C4) mission systems;IT infrastructure modernization; and
intelligence, surveillanceprofessional services.
IT services: We manage global IT enterprise operations for our customers, including in the classified domain. We provide technology consulting, solution design, system integration, operations and reconnaissance (ISR) solutions.maintenance, cloud services, applications development, and cyber defense for enterprise systems.
At the Pentagon, we provide cybersecurity services that include end-point security, network security and incident handling. For the Centers for Medicare & Medicaid Services (CMS), we provide IT solutionshosting and mission-support services: As a trusted systems integratoroperating services and maintenance in support of claims processing for more than 50 years,49 million Medicare beneficiaries.
In 2019, we design, build and operate enterprise information systems, including large-scale, secure IT networks and systems. In addition, wereceived several key contracts to provide a broad range of technical, professional and training services.
Our Information Technology business supports the full enterprise IT lifecycle, designing, integrating, operating, maintaining and modernizing complex data, voice and multimedia networks. Working closely with our customers, we ensure their network infrastructures are secure, efficient, scalable and cost-effective.


intelligence services to classified customers. We have extensive experience consolidating, building and operating data centers. In 2017, we were awarded an enterprise IT contract to support the Defense Logistics Agency’s J6 Enterprise Technology Services program and a contract to modernize NATO’s IT infrastructure that supports NATO member countries. The group was also awarded a large contract to manage an intelligence community agency’s global data center and hybrid cloud environment.
The group is at the forefront of agile development, big data analytics and cloud and virtualization technologies and services, offering solutions that meet multiple federal government and military compliance requirements. We developed and deployed the largest virtual desktop environment for the intelligence community, with over 80,000 users. We also support security operations and computer network defense centers across multiple intelligence agencies, with more than 100,000 accounts and 50,000 devices across classified and unclassified networks.
We provide leading-edge training strategies and technologies for military operations, range support, simulation and professional development. For example, we deliver education curricula and training throughout the Navy and live, virtual, constructive and gaming capabilities to more than half of the Army’s Mission Training Complexes. In 2017, we were awarded three contracts to continue delivering education and training support services to the Naval Education and Training Command.
The group’s technical and professional support services include providing domain specialists and technical solutions to help customers meet technology, operational, critical planning and staffing needs. We provide these services to$325 by the U.S. Department of Homeland Security (DHS) to provide priority telecommunications services to the Cybersecurity and Infrastructure Security Agency’s Emergency Communications Division to maintain continuity of government operations during emergencies. We provide telecommunication expertise and priority voice, data, video and information services during natural disasters, acts of terrorism and war. These critical services maintain real-time emergency communications for thousands of users across the federal government, facilitating the continuity of operations and emergency response.
IT infrastructure modernization: We provide IT infrastructure modernization services for our defense and national security customers, including designing, building and operating global enterprise IT infrastructures; system design and engineering; data center consolidation; and cloud strategy, migration and operation.
We are working with the Department of Defense (DoD) to migrate its applications to the cloud. This program — milCloud 2.0 — provides a hybrid cloud solution designed specifically for the warfighter that offers ease of use, improved performance, enhanced security and greater affordability. Additionally, we provide engineering and technical services in support of our national security customers, protecting mission-critical systems and information from domestic and foreign adversaries with advanced cybersecurity capabilities.
In 2019, we were selected by the Department of Health and Human Services (HHS) to provide advanced technologies to support increased efficiencies in its workforce. This will include artificial intelligence, machine learning, natural language processing and robotic process automation. We also support DHS with migration and consolidation of data center operations while introducing new technologies to improve security and mission performance.


Professional services: Our portfolio of professional services includes logistics and supply chain management; training and simulation; and life sciences, medical research and specialized mission support services.
In 2019, we won a $2 billion contract to continue managing the U.S. State Department’s global supply chain that ensures the secure transportation and delivery of millions of assets to worldwide posts including those in high-threat environments. Through this contract, we also secure U.S. posts abroad and help the government respond to natural disasters with logistics and transportation services. In our defense portfolio, we provide turnkey training and simulation services for the U.S. Army’s Aviation Center of Excellence in Fort Rucker, Alabama, the largest helicopter flight training program in the world.
In 2019, we won a contract for $44 to continue conducting research on traumatic brain injury, symptom diagnostics, treatment, rehabilitation methods and the effect of repetitive exposure to sub-concussive blasts from weapons. We have supported this contract through a network of 21 sites since 2014. These include military treatment facilities, major trauma rehabilitation sites within the Department of Veterans Affairs, U.S. Special Operations Command and intelligencethe Defense Health Agency headquarters in Fairfax, Virginia.
Revenue for the Information Technology segment was $8.4 billion in 2019, $8.3 billion in 2018 and defense customers, as well as to federal civilian agencies, including$4.4 billion in 2017, which represented 21%, 23% and 14% of our consolidated revenue in each of the U.S. Census Bureau and the Centers for Medicare & Medicaid Services.respective years.
C4 mission systems: We design, build, integrate, deploy and support communications, command-and-control and computer mission systems; imagery, signals- and multi-intelligence systems; and cyber security systems for customers in the U.S. defense, intelligence and homeland security communities, as well as U.S. allies.MISSION SYSTEMS
Our Mission Systems segment is a global provider of mission-critical products and systems. We offer solutions across all domains and produce a unique combination of products and capabilities that are purpose-built for essential C4ISR and cybersecurity applications. Our technology and products are often built into platforms and integrated systems on which our customers rely. The Mission Systems segment has more than 100 locations worldwide and employs more than 13,000 engineering and technical professionals dedicated to solving the toughest security and technology challenges facing the United States and its partners. The segment’s portfolio includes prime contract programs in which we deliver innovative defense-electronics hardware and integrated systems as well as subcontract efforts in support of large-scale land, air, sea and space platforms. Additionally, our Mission Systems and Information Technology segments are often partners, building on complementary skills to pursue business opportunities in the defense and intelligence markets. This ability to offer an integrated solution can provide a more economical outcome for the customer than separate procurements from varied vendors.
The Mission Systems segment is organized into three core capabilities:
ground systems and products;
space, intelligence and cyber systems; and
naval, air and electronic systems.
Ground systems and products: Our Mission Systems segment is a leading manufacturer and integrator of tactical, secure communications systems. Assystems for a diverse customer base, both U.S. and non-U.S. We design, build, deploy and support mission command applications; assured position, navigation and timing components; and other communications equipment and networking solutions for the prime contractor onU.S. defense community and non-U.S. partners. We also provide communications equipment, sensors and software for public-safety applications and to the Common Hardware Systems-4 (CHS-4) contract,federal government. Additionally, we provide the Army with next-generationdata collection and processing products, command and control applications, and computing and communications equipment.


We are also the prime contractor for the U.S. Army’s backbone mobile communications network named Warfighter Information Network-Tactical (WIN-T). WIN-T Increment 1 was rapidly deployedbackbone, which provides secure voice, video and data capabilities to Iraq and Afghanistan beginning in 2004 and by 2012 was fully fielded to the Army, National Guard and Reserves. Increment 2 has been fielded to nine division headquarters and 15 brigade combat teams, providing a more capable and resilient network,soldiers on-the-move, capabilities and the ability to quicklyrapidly insert new technologies into the system.
We continue to work closely with our Army customer to evolve its next-generation combat networkcapabilities to meet the threats of the future. In 2019, we were awarded an indefinite delivery, indefinite quantity (IDIQ) contract to provide electronic and cyber warfare capabilities by leading a nationwide team of cyber technology companies to integrate technologies from multiple domains to achieve desired cyber effects.
In 2019, we partnered with the Army to field a new and improved Global Positioning System (GPS) capability, known as Mounted Assured Positioning, Navigation and Timing System (MAPS) Gen 1, onto Strykers based in Germany. MAPS Gen 1 allows U.S. forces to operate in an environment where GPS signals are degraded or denied, and could eventually extend to thousands of vehicles across Europe.
With a 50-year legacy in radio frequency communications and networks, the group offerswe offer a range of radio products and systems for military, government and commercial customers, as well as long-term evolution (LTE) broadband communications networks for first responders. Our AN/USC-61(C) Digital Modular Radio (DMR) is the first software-defined radio to become a communications system standard for the U.S. military. We recently added the Mobile User Objective System (MUOS) waveform to the DMR, providing secure ultra-high frequency satellite communications. The group continues to deliverprovide CM-300/350 V2 digital radios to the FAA, used by air traffic control centers, commercial airports, military air stations and range installations for reliable ground-to-air communications.


In 2019, Mission Systems introduced the URC-300 radio. The URC-300 is built with a software-based architecture, enabling customization and future enhancements as new technology becomes available.
We also provide many of these capabilities to non-U.S. agencies and commercial customers. We have developed, and deployed, and continue to modernize and support the Canadian Army’s fully integrated, secure combat voice and data network. We leveraged this experience to delivernetworks for the U.K. Ministryarmies of Defence’s Bowman tactical communication system, forCanada and the United Kingdom. These efforts, which we currently providehave supported for almost 30 years, are ongoing support and capability upgrades. We were awarded a contract in 2017 forthrough the U.K.’s next-generation tactical communication and information system. TheMorpheus program, known as Morpheus, willwhich aims to modernize the United Kingdom’s communications and command-and-control systems across three armed services by evolving the Bowman network into a more open, agile architecture. In Canada, our public safety-focused communication system, the SHIELD Ecosystem, allows first responders to gather
Space, intelligence and exchange information quickly using digital applications on securecyber systems: Mission Systems engineers space payloads for advanced missions, builds and manages spaceborne and ground-based communications systems, and provides mission-data tracking equipment and processing capabilities for our customers. Additionally, we design and develop high-performance sensors to gather intelligence data from across the availabilityland, air, sea, space and locationcyber domains, and provide geospatial intelligence products and services to meet the needs of in-field personnel at all times.our customers in the global defense, civilian and commercial markets.
In command-and-control2019, the U.S. Navy’s Mobile User Objective System (MUOS), completed the Multiservice Operational Test and Evaluation (MOT&E) making it ready for operational use. Under a Navy contract with a maximum potential contract value of $732 awarded in 2019, we will sustain the integrated ground systems for this next-generation narrowband satellite communications system.
We also offer a variety of cyber products and software, including our family of encryption products, to protect and defend our customers’ critical information. We continually evolve our TACLANE family of network encryptors, the most widely deployed National Security Agency (NSA)-certified Type 1 in-line network encryptors, and our ProtecD@R family of data-at-rest encryptors. In 2019, our TACLANE-Nano compact Type 1 encryptor for mobile users was certified by the NSA to protect information classified up to the top secret/sensitive compartmented information (TS/SCI) level. In addition, we offer trusted multi-level and cross-domain technologies that our customers use to securely access information at various levels of security with speed and efficiency.
With an eye toward developing next-generation, emerging technologies, we acquired a company in 2019 with extensive expertise in AI that specializes in deploying deep learning algorithms on small, power-


efficient appliances and mobile devices. This new investment brings a wealth of artificial intelligence and machine learning knowledge, experience and capabilities to our customers across all domains.
Naval, air and electronic systems: We provide platform integration services for maritime and aviation platforms and for strategic weapons systems and advanced electronic systems, including computing systems, displays and data management, for both U.S. and non-U.S. customers.
We have a 50-year legacy of providing advanced fire-control systems for Navyall of the Navy’s submarine programs, both attack and weballistic missile. We are developing and integrating commercial off-the-shelf software and hardware upgrades to improve the tactical control capabilities for several submarine classes.
The group’ssegment’s combat and seaframe control systems serve as the technology backbone for the Navy’s Independence-variant Littoral Combat Ship (LCS) and the Expeditionary Fast Transport (EPF) ships. In addition,2019, we completed the group manufactures unmanned undersea vehiclesintegration of a new over-the-horizon missile capability onto the USS Gabrielle Giffords (LCS 10). As the Independence-variant LCS systems integrator, we are responsible for the design, integration and testing of the navigation, command, control, computing, communication, seaframe control and combat management systems on each ship.
We also design and manufacture unmanned underwater vehicles (UUVs) for U.S. and non-U.S. military and commercial customers, offering a range of systems and configurations, includingcustomers. We have integrated more than 70 different100 sensors on 80 vehicles that can operate inacross our family of Bluefin Robotics UUVs and continue to develop new capabilities for unmanned operations throughout constrained waterways and the open oceanocean. In 2019, our Knifefish surface mine countermeasure UUV received approval to enter low-rate initial production, paving the way for the Navy to procure five systems (10 total Knifefish UUVs). In 2019, we extended the Bluefin product line with the release of the Bluefin-12 UUV. This advanced, mission-ready UUV offers embedded intelligence and constrained waterways.increased mission modularity to complete users’ evolving, long-endurance and high-consequence missions.
We also deliverOur Digital Modular Radio (DMR) is the first software-defined radio to become a communications system standard for the Navy. The DMR is a four-channel radio that serves as the Navy’s communications hub for surface ships, submarines and shore-site communications. As a multi-channel radio, it simultaneously communicates with a wide spectrum of tactical radios and can communicate information at different security levels.
For airborne platforms, we offer high-assurance mission and display systems, signal and sensor processing, and command-and-control solutions for airborne platforms.solutions. Our aircraft mission computers are on the Navy’s F/A-18 Super Hornet strike fighter and the Marine Corps’ AV-8B Harrier II aircraft, givingprovide pilots with advanced situational awareness and combat systems control. TheOur avionics, radomes, or encrypted communication systems are present on nearly every U.S. military aircraft in service today, including the F-35, F-16, F/A-18, F-22, P-3, OrionP-8 and other maritime patrol aircraft use our digital stores management system.
ISR solutions: The Information Systems and Technology group provides ISR capabilities to a variety of classified programs. Our expertise includes multi-intelligence ground systems and large-scale, high-performance data and signal processing. We deliver high-reliability, long-life sensors and payloads designed to perform in the most extreme environments, including undersea sensor and power systems and space payloads.
Cyber security solutions are embedded throughout the group’s IT and systems engineering programs. We deliver comprehensive cyber security-related products and services to help customers defend and protect their networks from the persistent and growing cyber threat. We continue to evolve our TACLANE family of network encryptors, the most widely-deployed NSA-certified Type 1 encryption device, and our NSA-certified ProtecD@R family of data-at-rest encryptors, which protect stored data on computers, tactical platforms, sensors and servers. We released TACLANE-FLEX in 2017, a scalable and flexible solution that supports additional networking and security capabilities. The group also delivers technologies that provide access to information at various security levels, accommodating the increased demand for cloud computing and mobility. We acquired a company in 2017 that expands our multi-level security capabilities with products intended for tactical use.
The Information Systems and Technology group’s market is diverse and dynamic. We are focused on maintaining a market-leading position by developing innovative solutions to meet customer requirements and optimizing the performance of the business to ensure cost competitiveness. The group is well-positioned to continue meeting the needs of our broad customer base.


AV-8B.
Revenue for the InformationMission Systems segment was $4.9 billion in 2019, $4.7 billion in 2018 and Technology group was 29%$4.5 billion in 2017, which represented 13% of our consolidated revenue in 2017, 30%2019 and 2018 and 15% in 2016 and 28% in 2015. Revenue by major products and services was as follows:

Year Ended December 312017 2016 2015
IT services$4,410
 $4,428
 $4,510
C4ISR solutions4,481
 4,716
 4,419
Total Information Systems and Technology$8,891
 $9,144
 $8,929
2017.
MARINE SYSTEMS
With shipyards located on both U.S. coasts, ourOur Marine Systems groupsegment is a market-leading designer and builder of nuclear-powered submarines, surface combatants, and auxiliary and combat-logistics ships for the U.S. Navy, and Jones Act ships for commercial customers, as well as a provider ofcustomers. We also provide repair services for severalnearly all classes of Navy ships. With shipyards on both U.S. Navy ship classes.coasts, our Marine Systems segment consists of three business units: Bath Iron Works, Electric Boat and NASSCO. The group’s portfolio ofsegment’s platforms and capabilities includes:include:
nuclear-powered submarines;
surface combatants;


auxiliary and combat-logistics ships;
commercial product carriers and containerships;
design and engineering support services; and
maintenance, modernization and lifecycle support services.
We have a long history as one of the Navy’s primary shipbuilders, for the Navy, constructing and deliveringmaintaining the ships andof today’s fleet while designing and developing next-generation platforms. More than 90% of the group’sour segment’s revenue is for Navy engineering, construction and lifecycle support awarded under large, multi-year contracts. We maintain the most sophisticated marine engineering center in the world, designing and testing concepts to support future capabilities. Our ability to design, build and maintain our nation’s most technologically sophisticated warships is a critical element of the U.S. defense industrial base.
We areThe largest business unit in our Marine Systems segment is Electric Boat, the prime contractor forlead shipyard on all Navy nuclear-powered submarine programs, including both the Navy’s Virginia-class attack submarine program.and the future Columbia-class ballistic-missile submarine. Designed for the full range ofto meet diverse global mission requirements, these stealthy boats excelsubmarines operate with highly advanced capabilities and stealth in both littoral and open-ocean environments.
The Navy is procuringprocures Virginia-class submarines in multi-boat blocks.blocks, currently at a two-per-year rate, through a teaming arrangement between Electric Boat continues to operate at a two submarines-per-year construction rate.and an industry partner. We have delivered 1518 Virginia-class submarines in conjunction with an industry partner that shares infrom the construction, and the remaining 13 submarinesfirst three blocks. There are 10 boats from Block IV currently under contract areand scheduled for delivery through 2023. Since delivering2024. Over the leadlife of the Virginia-class submarine the cost and timeprogram, we have driven delivery timelines from 88 months in Block I to deliver follow-on ships has been reduced consistently and significantly, from 84 months to 66a current average rate of 68 months, while improvingdoubling the mission capabilitybuild rate of construction to two ships per year and qualityconsistently increasing ship capability.
In 2019, the Navy awarded Electric Boat a $22.2 billion contract, the largest shipbuilding contract in the Navy’s history, for construction of the ships at delivery.
We are also developing the Virginia Payload Module (VPM) for the fifth block of Virginia-class submarines. Electric Boat will serve as the prime contractor for construction of nine submarines, expectedincluding eight with the Virginia Payload Module (VPM), and an option for a tenth submarine with the VPM that, if exercised, will bring the total contract value to start construction$24.1 billion. In addition to significant upgrades in 2019. Thisperformance, the VPM included in this block of submarines will provide a significant upgrade in size and performance. The VPM is an 84-foot hull section that will addadds four additional payload tubes, more than tripling the strike capacity of these submarines and preservingproviding unique capabilities to support special missions. With the United States’ critical undersea capabilities.Block V contract, there are now 19 Virginia-class submarines in our backlog scheduled for delivery through 2029.
The groupElectric Boat is the prime contractor for designdesigner and constructionbuilder of the Navy’s Columbia-class ballistic missileballistic-missile submarine, a 12-boat program that the Navy considers its top priority. These submarines will provide strategic deterrent capabilities for decades and will beginare scheduled to come on lineonline when the current Ohio-class ballistic-missile submarine fleet reaches the end of its service life startingbeginning in 2027. The lead ship isWe are slated to startbegin construction of the lead boat in 2021, with deliverythe fourth quarter of 2020 and deliver it to the Navy in 2027. We were awarded a contract in 2017 to finish the design and begin prototype developmentsupport of the lead boat, an important stepOhio-class retirements. In 2019, we broke ground on a 200,000-square-foot assembly building in Groton, Connecticut, that is the centerpiece of a $1.7 billion expansion to keepsupport Columbia- and Virginia-class construction.
We have developed a comprehensive resource master plan to ensure that we will have a fully trained workforce in place to support the program on schedule.increased demand for skilled trades for both the Columbia- and Virginia-class programs. We continue to invest in our facilities, optimizing the timing between investments and returns, while coordinating closely with the Navy. We are investing inalso working with our workforcenetwork of more than 3,000 suppliers — mostly small businesses — to provide for concurrent production of the Virginia- and facilities, including a new automated frame and cylinder facility in Quonset Point, Rhode Island. Steel for the first Columbia-class hull was cut in 2016, and missile tubes are under construction tosubmarine programs.


support the Common Missile Compartment work under joint development for the U.S. Navy and the U.K. Royal Navy.
We are the lead designer and builder ofBath Iron Works builds the Arleigh Burke-class (DDG-51) guided-missile destroyers managing the design,and manages modernization and lifecycle support. These highly capable, multi-mission ships provide offensive and defensive capabilities and are capable of simultaneously fighting air, surface and subsurface battles.support for the class. The Navy restarted thisthe program in 2010 after a four-year


break in construction andconstruction. Bath Iron Works delivered the first ship in the restart program to the Navy in 2017. We have construction contracts for seven DDG-51sa total of 11 ships in backlog scheduled for delivery through 2024.2026. In 2019, the Navy awarded Bath Iron Works a contract to continue providing planning yard services for DDG-51s, to include design, material kitting, logistics, planning and execution.
Bath Iron Works is one ofthe hull, mechanical and electrical (HME) prime contractor for the Navy’s contractors involved in the development and construction of the Zumwalt-class (DDG-1000) platform, the Navy’s next-generation guided-missile destroyer. These ships are equipped with numerous technological enhancements, including a low radar profile, an integrated power system and a software environment that ties together nearly every system on the ship. DDG-1000s will provide independent forward presence and deterrence, support special operations forces, and operate as an integral part of joint and combined expeditionary forces.destroyer program. We delivered the first ship in 2016. The2016 and the second ship is expectedin 2018. We expect to deliver in 2018 withour work on the third and final ship scheduled for deliveryof this class in 2020.
NASSCO is building Expeditionary Sea Base (ESB) auxiliary support ships, a second variant of the Expeditionary SupportTransfer Dock (ESD) ships, whichfor the Navy. ESBs serve as floating forward stagingafloat forward-staging bases, to improve the Navy andproviding a persistent platform for mine warfare, special operations warfare or Marine Corps’ ability to deliver large-scale equipment and expeditionary forces to areas without adequate port access. ESBs, equippedCorps missions. Equipped with a 52,000-square-foot flight deck and accommodations for up to 250 personnel, are capable of supporting a variety ofthese ships can support diverse missions, including airborne mine countermeasure,countermeasures, maritime security operations, non-combatant evacuation operations and humanitarian assistance/disaster relief missions. The group hasNavy awarded NASSCO the first design and build contract for the ESD/ESB in 2011. In 2019, we delivered three ships inthe fifth vessel of the program to the Navy and were awarded a contract for the construction is underwayof the sixth and seventh ships, as well as an option for an eighth. Work on the fourth and fifthtwo new ships scheduled for delivery in early 2018 and 2019, respectively.will continue into 2023.
NASSCO was competitively awarded aan exclusive design and construction contract in 2016 for the lead ship in the Navy’s new class of fleet replenishment oilers, the John Lewis class (TAO-205)Lewis-class (T-AO-205), along with options for five additional ships. Designed to transfer fuel to Navy surface ships operating at sea, the oilers will have the capacity tocan carry 156,000162,000 barrels of fuel as well asand also offer a significant dry cargo capacity and aviation capability. Engineering and design work is underway forcapabilities. We expect to deliver the first ship of this class, the future USNS John Lewis, in 2021. Three options have been fully exercised to date, as well as funding for engineering and long-lead materials for the fourth option, with deliveries planned into 2024.
In addition to our new construction scheduledwork for the Navy, the Marine Systems segment has extensive experience in all phases of commercial ship construction. We have designed and built crude oil and product tankers and container and cargo ships for commercial customers since the 1960s. These ships satisfy our commercial customers’ Jones Act requirement that ships carrying cargo between U.S. ports be built in U.S. shipyards. NASSCO is the only major Jones Act shipyard on the West Coast of the United States. NASSCO pioneered green ship technology, designing and delivering the world’s first liquefied natural gas (LNG)-powered containerships starting in 2015 to begindecrease emissions and increase fuel efficiency.
In 2019, we delivered an 870-foot-long, 51,400-deadweight-metric-ton, combination containership/roll-on, roll-off (ConRo) vessel — the largest ConRo vessel ever built in late 2018.the United States — to a commercial customer. The LNG-ready ship is the first of a two-ship contract.
Our Marine Systems groupsegment provides comprehensive ship and submarine maintenance, modernization and lifecycle support services to extend the service life and maximize the value of these ships. NASSCO conducts full-service maintenance and surface-ship repair operations in four primary locations within the Navy’s largest U.S. portsNavy fleet concentration areas in San Diego, California; Norfolk, Virginia; Mayport, Florida; and at customer locations around the globe.Bremerton, Washington. Electric Boat provides submarine maintenance and modernization services in a variety of U.S. locations, and Bath Iron Works provides lifecycle support services for Navy surface ships.ships in both U.S. and overseas ports. In support of allied navies, the group offerswe offer program management, planning, engineering and design support for submarine and surface-ship construction programs.
In addition to our work for the Navy, the Marine Systems group has extensive experience in all phases of ship construction for commercial customers, designing and building oil and product tankers and container and cargo ships for commercial markets since the 1970s. These ships help our commercial customers satisfy the Jones Act requirement that ships carrying cargo between U.S. ports be built in U.S. shipyards. The group has advanced commercial shipbuilding technology with NASSCO’s design and delivery of the world’s first liquefied natural gas (LNG)-powered containerships, using green ship technology to dramatically decrease emissions while increasing fuel efficiency. From 2014 to 2017, NASSCO constructed and delivered eight LNG-conversion-ready product tankers for commercial customers. During this time, the company achieved several first-time milestones, including a record throughput of 60,000 tons of steel per year and the delivery


of six ships in 2016. We are currently designing and constructing two new LNG-capable containerships with roll-on, roll-off capability with deliveries scheduled for 2019 and 2020.
To further the group’s goals ofpromote operating efficiency, innovation and affordability for the customer,our customers, we make strategic investments in our business, often in cooperation with the Navy. In addition, the Marine Systems group leverages itsWe leverage our design and engineering expertise across its shipyards to improve program execution and generate cost savings. This knowledge sharing


enables the groupus to use resources more efficiently and drive process improvements. WeThrough robust and disciplined planning, we are well-positionedpositioned to continue to fulfillsupport our customers well into the ship-construction and support requirements of our customers.future.
Revenue for the Marine Systems groupsegment was 26%23% of our consolidated revenue in 20172019, 24% in 2018 and 2016 and 25%26% in 2015.2017. Revenue by major products and services was as follows:
Year Ended December 312017 2016 20152019 2018 2017
Nuclear-powered submarines$5,175
 $5,264
 $5,010
$6,254
 $5,712
 $5,175
Surface combatants1,043
 994
 1,081
Auxiliary and commercial ships564
 654
 672
Surface ships1,912
 1,872
 1,607
Repair and other services1,222
 1,160
 1,269
1,017
 918
 1,222
Total Marine Systems$8,004
 $8,072
 $8,032
$9,183
 $8,502
 $8,004


CUSTOMERS
In 2017, 61%2019, 66% of our consolidated revenue was from the U.S. government, 15%16% was from U.S. commercial customers, 13%9% was from non-U.S. commercial customers and the remaining 11%9% was from non-U.S. government customers.
U.S. GOVERNMENT
Our primary customer is the U.S. Department of Defense (DoD). We also contract with other U.S. government customers, including the intelligence community and the Departments of Homeland Security and Health and Human Services, and first-responder agencies.Services. Our revenue from the U.S. government was as follows:
Year Ended December 312017 2016 20152019 2018 2017
DoD$15,498
 $15,139
 $14,694
$19,864
 $17,674
 $15,441
Non-DoD2,847
 2,824
 2,831
5,254
 5,306
 2,904
Foreign Military Sales (FMS)*676
 713
 453
689
 626
 676
Total U.S. government$19,021
 $18,676
 $17,978
$25,807
 $23,606
 $19,021
% of total revenue61% 61% 57%66% 65% 61%
* In addition to our direct non-U.S. sales, we sell to non-U.S. governments through the FMS program. Under the FMS program, we contract with and are paid by the U.S. government, and the U.S. government assumes the risk of collection from the non-U.S. government customer.
Our U.S. government businesses operate underrevenue is derived from fixed-price, cost-reimbursement and time-and-materials contracts. Our production contracts are primarily fixed-price. Under these contracts, we agree to perform a specific scope of work for a fixed amount. Contracts for research, engineering, repair and maintenance, and other services are typically cost-reimbursement or time-and-materials. Under cost-reimbursement contracts, the customer reimburses contract costs incurred and pays a fixed, incentive or award-based fee. These fees are determined by our ability to achieve targets set in the contract, such as cost, quality, schedule and performance. Under time-and-materials contracts, the customer pays a fixed hourly rate for direct labor and generally reimburses us for the cost of materials.


InOf our U.S. government business,revenue, fixed-price contracts accounted for 59% in 2019, 56% in 2018 and 54% in 2017, 53% in 2016 and 55% in 2015;2017; cost-reimbursement contracts accounted for 35% in 2019, 38% in 2018 and 42% in 2017, 43% in 2016 and 41% in 2015;2017; and time-and-materials contracts accounted for 6% in 2019 and 2018 and 4% in each of the past three years.2017.
For information on the advantages and disadvantages of each of these contract types, see Note BC to the Consolidated Financial Statements in Item 8.


U.S. COMMERCIAL
Our U.S. commercial revenue was $6.2 billion in 2019, $5 billion in 2018 and $4.5 billion in 2017, which represented 16%, 14% and 2016 and $5.5 billion in 2015. This represented 15% of our consolidated revenue in 2017 and 2016 and 17% in 2015.each of the respective years. The majority of this revenue is for business-jet aircraft and related services where our customer base consists of individuals and public and privately held companies across a wide range of industries.
NON-U.S.
Our revenue from non-U.S. government and commercial customers was $7.4 billion in 2019, $7.6 billion in 2018 and $7.5 billion in 2017, $7.4 billion in 2016which represented 18%, 21% and $8.3 billion in 2015. This represented 24% of our consolidated revenue in 2017 and 2016 and 26% in 2015.each of the respective years.
We conduct business with customers around the world. Our non-U.S. defense subsidiaries maintain long-term relationships with their customers and have established themselves as principal regional suppliers and employers, providing a broad portfolio of products and services and maintaining long-term relationships with their customers.services.
Our non-U.S. commercial businessrevenue consists primarily of business-jet aircraft exports and worldwide aircraft services. The market for business-jet aircraft and related services outside North America has expanded significantly in recent years. While the installed base of aircraft is concentrated in North America, orders from non-U.S. customers outside North America represent a significant segmentportion of our aircraft business with approximately 55%50% of the Aerospace group’ssegment’s total backlog on December 31, 2017.2019.


COMPETITION
Several factors determine our ability to compete successfully in the defense and business-aviation markets. While customers’ evaluation criteria vary, the principal competitive elements include:
the technical excellence, reliability, safety and cost competitiveness of our products and services;
our ability to innovate and develop new products and technologies that improve mission performance and adapt to dynamic threats;
successful program execution and on-time delivery of complex, integrated systems;
our global footprint and accessibility to customers;
the reputation and customer confidence derived from past performance; and
the successful management of customer relationships.
DEFENSE MARKET COMPETITION
The U.S. government contracts with numerous domestic and non-U.S. companies for products and services. We compete against other large platform and system-integration contractors as well as smaller companies that specialize in a particular technology or capability. Outside the United States, we compete with global defense contractors’ exports and the offerings of private and state-owned defense manufacturers. Our Combat Systems groupsegment competes with a large number of U.S. and non-U.S. businesses. Our Information Technology and Mission Systems and Technology group competessegments compete with many companies, from large defensegovernment contracting and commercial technology companies to small niche competitors with specialized technologies or expertise. Our Marine Systems groupsegment has one primary


competitor with which it also partners on the Virginia-class and Columbia-class submarine program.programs. The operating cycle of many of our major platform programs can result in sustained periods of program continuity when we perform successfully.
We are involved in teaming and subcontracting relationships with some of our competitors. Competitions for major defense and other government contracting programs often require companies to form teams to bring together a spectrum of capabilities to meet the customer’s requirements. Opportunities associated with


these programs include roles as the program’s integrator, overseeing and coordinating the efforts of all participants on a team, or as a provider of a specific component or subsystem.
BUSINESS-JET AIRCRAFT MARKET COMPETITION
The Aerospace groupsegment has several competitors for each of its Gulfstream products. Key competitive factors include aircraft safety, reliability and performance; comfort and in-flight productivity; service quality, global footprint and responsiveness; technological and new-product innovation; and price. We believe that Gulfstream competes effectively in all of these areas.
The Aerospace groupsegment competes worldwide in the business-jet aircraft services market primarily on the basis of quality, price quality and timeliness. In our maintenance, repair and FBO businesses,While competition for each type of service varies somewhat, the group competes with several other large companies as well assegment faces a number of smaller companies, particularly in the maintenance business. In our completions business, the group competes with several service providers.competitors of varying sizes for each of its offerings.


BACKLOG
Our total backlog represents the estimated remaining value of work to be performed under firm contracts and includes funded and unfunded portions. For additional discussion of backlog, see Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 7.
Summary backlog information for each of our business groupssegments follows:
    
2017 Total
Backlog Not
Expected to Be
Completed in 2018
    
2019 Total
Backlog Not
Expected to Be
Completed in 2020
December 312017 2016 2019 2018 
Funded Unfunded Total Funded Unfunded Total Funded Unfunded Total Funded Unfunded Total 
Aerospace$12,319
 $147
 $12,466
 $13,119
 $96
 $13,215
 $6,360
$13,168
 $181
 $13,349
 $11,208
 $167
 $11,375
 $7,800
Combat Systems17,158
 458
 17,616
 17,206
 597
 17,803
 12,303
14,474
 439
 14,913
 16,174
 424
 16,598
 8,617
Information
Systems and
Technology
6,682
 2,192
 8,874
 6,458
 2,007
 8,465
 3,307
Information
Technology
4,839
 4,294
 9,133
 4,717
 3,248
 7,965
 2,795
Mission Systems5,037
 326
 5,363
 4,890
 445
 5,335
 1,899
Marine Systems15,872
 8,347
 24,219
 15,000
 7,723
 22,723
 16,764
20,012
 24,175
 44,187
 18,837
 7,761
 26,598
 34,690
Total backlog$52,031
 $11,144
 $63,175
 $51,783
 $10,423
 $62,206
 $38,734
$57,530
 $29,415
 $86,945
 $55,826
 $12,045
 $67,871
 $55,801


RESEARCH AND DEVELOPMENT
To foster innovative product development and evolution, we conduct sustained R&D activities as part of our normal business operations. Most of our Aerospace group’ssegment’s R&D activities support Gulfstream’s product enhancement and development programs. In our U.S. defense businesses,operations, we conduct customer-sponsored R&D activities under government contracts and company-sponsored R&D activities, investing in technologies and capabilities that provide innovative solutions for our customers. In accordance with government regulations, we recover a portion of company-sponsored R&D expenditures through overhead


charges to U.S. government contracts. For more information on our company-sponsored R&D activities, including our expenditures for the past three years, see Note A to the Consolidated Financial Statements in Item 8.



INTELLECTUAL PROPERTY
We develop technology, manufacturing processes and systems-integration practices. In addition to owning a large portfolio of proprietary intellectual property, we license some intellectual property rights to and from others. The U.S. government holds licenses to many of our patents developed in the performance of U.S. government contracts, and it may use or authorize others to use the inventions covered by these patents. Although these intellectual property rights are important to the operation of our business, no existing patent, license or other intellectual property right is of such importance that its loss or termination would have a material impact on our business.


EMPLOYEES
On December 31, 2017,2019, our subsidiaries had 98,600102,900 employees, approximately one-fifth of whom work under collective agreements with various labor unions and worker representatives. Agreements covering approximately 2%10% of total employees are due to expire in 2018.2020. Historically, we have renegotiated these labor agreements without any significant disruption to operating activities.


RAW MATERIALS, SUPPLIERS AND SEASONALITY
We depend on suppliers and subcontractors for raw materials, components and subsystems. Our U.S. government customer is a supplier on some of our programs. These supply networks can experience price fluctuations and capacity constraints, which can put pressure on our costs. Effective management and oversight of suppliers and subcontractors is an important element of our successful performance. We sometimes rely on only one or two sources of supply that, if disrupted, could impact our ability to meet our customer commitments. We attempt to mitigate risks with our suppliers by entering into long-term agreements and leveraging company-wide agreements to achieve economies of scale and by negotiating flexible pricing terms in our customer contracts. We have not experienced, and do not foresee, significant difficulties in obtaining the materials, components or supplies necessary for our business operations.
Our business is not seasonal in nature. The receipt of contract awards, the availability of funding from the customer, the incurrence of contract costs and unit deliveries are all factors that influence the timing of our revenue. In the United States, these factors are influenced by the federal government’s budget cycle based on its October-to-September fiscal year.


REGULATORY MATTERS
U.S. GOVERNMENT CONTRACTS
U.S. government contracts are subject to procurement laws and regulations. The Federal Acquisition Regulation (FAR) and the Cost Accounting Standards (CAS) govern the majority of our contracts. The FAR mandates uniform policies and procedures for U.S. government acquisitions and purchased services. Also, individual agencies can have acquisition regulations that provide implementing language for the FAR or that supplement the FAR. For example, the DoD implements the FAR through the Defense Federal


Acquisition Regulation Supplement (DFARS). For all federal government entities, the FAR regulates the phases of any product or service acquisition, including:
acquisition planning,planning;
competition requirements,requirements;
contractor qualifications,qualifications;


protection of source selection and vendor information,information; and
acquisition procedures.
In addition, the FAR addresses the allowability of our costs, while the CAS addresses the allocation of those costs to contracts. The FAR and CAS subject us to audits and other government reviews covering issues such as cost, performance, internal controls and accounting practices relating to our contracts.
NON-U.S. REGULATORY
Our non-U.S. revenue isoperations are subject to the applicable government regulations and procurement policies and practices, as well as U.S. policies and regulations. We are also subject to regulations governing investments, exchange controls, repatriation of earnings and import-export control.
BUSINESS-JET AIRCRAFT
The Aerospace groupsegment is subject to FAA regulation in the United States and other similar aviation regulatory authorities internationally, including the Civil Aviation Administration of Israel (CAAI), the European Aviation Safety Agency (EASA) and the Civil Aviation Administration of China (CAAC). For an aircraft to be manufactured and sold, the model must receive a type certificate from the appropriate aviation authority, and each aircraft must receive a certificate of airworthiness. Aircraft outfitting and completions also require approval by the appropriate aviation authority, which is often is accomplished through a supplemental type certificate. Aviation authorities can require changes to a specific aircraft or model type before granting approval. Maintenance facilities and charter operations must be licensed by aviation authorities as well.
ENVIRONMENTAL
We are subject to a variety of federal, state, local and foreign environmental laws and regulations. These laws and regulations cover the discharge, treatment, storage, disposal, investigation and remediation of materials, substances and wastes identified in the laws and regulations. We are directly or indirectly involved in environmental investigations or remediation at some of our current and former facilities and at third-party sites that we do not own but where we have been designated a Potentially Responsible Partypotentially responsible party (PRP) by the U.S. Environmental Protection Agency or a state environmental agency. As a PRP, we are potentially liable to the government or third parties for the cost of remediating contamination. In cases where we have been designated a PRP, we generally we seek to mitigate these environmental liabilities through available insurance coverage and by pursuing appropriate cost-recovery actions. In the unlikely event that we are required to fully fund the remediation of a site, the current statutory framework would allow us to pursue contributions from other PRPs. We regularly assess our compliance status and management of environmental matters.
Operating and maintenance costs associated with environmental compliance and management of contaminated sites are a normal, recurring part of our operations. Historically, these costs have not been material. Environmental costs are often are recoverable under our contracts with the U.S. government. Based on information currently available and current U.S. government policies relating to cost recovery, we do not expect continued compliance with environmental regulations to have a material impact on our results of operations, financial condition or cash flows. For additional information relating to the impact of environmental matters, see Note O to the Consolidated Financial Statements in Item 8.




AVAILABLE INFORMATION
We file reports and other information with the Securities and Exchange Commission (SEC) pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended. These reports and information include an annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and


proxy statements. Free copies of these items are made available on our website (www.generaldynamics.com)(www.gd.com) as soon as practicable and through the General Dynamics investor relations office at (703) 876-3117.practicable. The SEC maintains a website (www.sec.gov) that contains reports, proxy and information statements, and other information. These items also
In addition to the information contained in this Form 10-K, information about the company can be readfound on our website and copied atour Investor Relations website (investorrelations.gd.com). Our Investor Relations website contains a significant amount of information about the company, including financial information, our corporate governance principles and practices, and other information for investors. We encourage investors to visit our website, as we frequently update and post new information about our company, and it is possible that this information could be deemed to be material information.
References to our website and the SEC’s Public Reference Room at 100 F Street, N.E., Washington, DC 20549. Information on the operationwebsite in this Form 10-K do not constitute, and should not be viewed as, incorporation by reference of the Public Reference Room isinformation contained on, or available through, the websites. The information should not be considered a part of this Form 10-K, unless otherwise expressly incorporated by calling the SEC at (800) SEC-0330.reference.


ITEM 1A. RISK FACTORS
An investment in our common stock or debt securities is subject to risks and uncertainties. Investors should consider the following factors, in addition to the other information contained in this Annual Report on Form 10-K, before deciding whether to purchase our securities.
Investment risks can be market-wide as well as unique to a specific industry or company. The market risks faced by an investor in our stock are similar to the uncertainties faced by investors in a broad range of industries. There are some risks that apply more specifically to our business.
Our revenue is concentrated with the U.S. government. This customer relationship involves some specific risks. In addition, our sales to non-U.S. customers expose us to different financial and legal risks. Despite the varying nature of our U.S.government and non-U.S. defense and business-aviationcommercial operations and the markets they serve, each groupsegment shares some common risks, such as the ongoing development of high-technology products and the price, availability and quality of commodities and subsystems.
The U.S. government provides a significant portion of our revenue. In 2017,2019, approximately 60%65% of our consolidated revenue was from the U.S. government. Levels of U.S. defense spending are driven by threats to national security. Competing demands for federal funds can pressure various areas of spending. Decreases in U.S. government defense and other spending or changes in spending allocation or priorities could result in one or more of our programs being reduced, delayed or terminated, which could impact our financial performance.
For additional information relating to the U.S. defense budget matters, see the Business Environment section of Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 7.
U.S. government contracts are not always fully funded at inception, and any funding is subject to disruption or delay. Our U.S. government revenue is funded by agency budgets that operate on an October-to-September fiscal year. Early each calendar year, the President of the United States presents to the Congress the budget for the upcoming fiscal year. This budget proposes funding levels for every federal agency and is the result of months of policy and program reviews throughout the Executiveexecutive branch. For the remainder of the year, the appropriationsAppropriations and authorization committeesAuthorization Committees of the Congress review the President’s budget proposals and establish the funding levels for the upcoming fiscal year. Once these levels are enacted into law, the Executive Office of the President administers the funds to the agencies.


There are two primary risks associated with the U.S. government budget cycle. First, the annual process may be delayed or disrupted, which has occurred in recent years.disrupted. If the annual budget is not approved by the beginning of the government fiscal year, portions of the U.S. government can shut down or operate under a continuing resolution that maintains spending at prior-year levels, which can impact funding for


our programs and timing of new awards. Second, the Congress typically appropriates funds on a fiscal-year basis, even though contract performance may extend over many years. Future revenue under existing multi-year contracts is conditioned on the continuing availability of congressional appropriations. Changes in appropriations in subsequent years may impact the funding available for these programs. Delays or changes in funding can impact the timing of available funds or lead to changes in program content.
Our U.S. government contracts are subject to termination rights by the customer. U.S. government contracts generally permit the government to terminate a contract, in whole or in part, for convenience. If a contract is terminated for convenience, a contractor usually is entitled to receive payments for its allowable costs incurred and the proportionate share of fees or earnings for the work performed. The government may also terminate a contract for default in the event of a breach by the contractor. If a contract is terminated for default, the government in most cases pays only for the work it has accepted. The termination of multiple or large programs could have a material adverse effect on our future revenue and earnings.
Government contractors operate in a highly regulated environment and are subject to audit by the U.S. government. Numerous U.S. government agencies routinely audit and review government contractors. These agencies review a contractor’s performance under its contracts and compliance with applicable laws, regulations and standards. The U.S. government also reviews the adequacy of, and compliance with, internal control systems and policies, including the contractor’s purchasing, property, estimating, material, earned value management and accounting systems. In some cases, audits may result in delayed payments or contractor costs not being reimbursed or subject to repayment. If an audit or investigation were to result in allegations against a contractor of improper or illegal activities, civil or criminal penalties and administrative sanctions could result, including termination of contracts, forfeiture of profits, suspension of payments, fines and suspension or prohibition from doing business with the U.S. government. In addition, reputational harm could result if allegations of impropriety were made. In some cases, audits may result in disputes with the respective government agency that can result in negotiated settlements, arbitration or litigation. Moreover, new laws, regulations or standards, or changes to existing ones, can increase our performance and compliance costs and reduce our profitability.
Our Aerospace groupsegment is subject to changing customer demand for business aircraft. Thebusiness-jet market is driven by the demand for business-aviation products and services by corporate, individual and government customers in the United States and around the world. The Aerospace group’ssegment’s results also depend on other factors, including general economic conditions, the availability of credit, pricing pressures and trends in capital goods markets. In addition, if customers default on existing contracts and the contracts are not replaced, the group’ssegment’s anticipated revenue and profitability could be reduced materially.
Earnings and margin depend on our ability to perform on our contracts. When agreeing to contractual terms, our management team makes assumptions and projections about future conditions and events. The accounting for our contracts and programs requires assumptions and estimates about these conditions and events. These projections and estimates assess:
the productivity and availability of labor,labor;
the complexity of the work to be performed,performed;
the cost and availability of materials and components,components; and
schedule requirements.


If there is a significant change in one or more of these circumstances, estimates or assumptions, or if the risks under our contracts are not managed adequately, the profitability of contracts could be adversely affected. This could affect earnings and margin materially.


Earnings and margin depend in part on subcontractor and vendor performance. We rely on other companies to provide materials, components and subsystems for our products. Subcontractors also perform some of the services that we provide to our customers. We depend on these subcontractors and vendors to meet our contractual obligations in full compliance with customer requirements and applicable law. Misconduct by subcontractors, such as a failure to comply with procurement regulations or engaging in unauthorized activities, may harm our future revenue and earnings. We manage our supplier base carefully to avoid or minimize customer issues. We sometimes rely on only one or two sources of supply that, if disrupted, could have an adverse effect on our ability to meet our customer commitments. Our ability to perform our obligations may be materially adversely affected if one or more of these suppliers is unable to provide the agreed-upon materials, perform the agreed-upon services in a timely and cost-effective manner, or engages in misconduct or other improper activities.
Sales and operations outside the United States are subject to different risks that may be associated with doing business in foreign countries. In some countries there is increased chance for economic, legal or political changes, and procurement procedures may be less robust or mature, which may complicate the contracting process. Our non-U.S. businessoperations may be sensitive to and impacted by changes in a foreign government’s budgets,national policies and priorities, political leadership and national priorities,budgets, which may be influenced by changes in threat environments, geopolitical uncertainties, volatility in economic conditions and other economic and political factors. Changes and developments in any of these matters or factors may occur suddenly.suddenly and could impact funding for programs or delay purchasing decisions or customer payments. Non-U.S. transactions can involve increased financial and legal risks arising from foreign exchange-rateexchange rate variability and differing legal systems. Our non-U.S. business isoperations are subject to U.S. and foreign laws and regulations, including laws and regulations relating to import-export controls, technology transfers, the Foreign Corrupt Practices Act (FCPA) and other anti-corruption laws, and the International Traffic in Arms Regulations (ITAR). An unfavorable event or trend in any one or more of these factors or a failure to comply with U.S. or foreign laws could result in administrative, civil or criminal liabilities, including suspension or debarment from government contracts or suspension of our export privileges, and could materially adversely affect revenue and earnings associated with our non-U.S. business.operations.
In addition, some non-U.S. government customers require contractors to enter into letters of credit, performance or surety bonds, bank guarantees and other similar financial arrangements. We may also be required to agree to specific in-country purchases, manufacturing agreements or financial support arrangements, known as offsets, that require us to satisfy investment or other requirements or face penalties. Offset requirements may extend over several years and could require us to team with local companies to fulfill these requirements. If we do not satisfy these financial or offset requirements, our future revenue and earnings may be materially adversely affected.
Our future success depends in part on our ability to develop new products and technologies and maintain a qualified workforce to meet the needs of our customers. Many of the products and services we provide involve sophisticated technologies and engineering, with related complex manufacturing and system-integration processes. Our customers’ requirements change and evolve regularly. Accordingly, our future performance depends in part on our ability to continue to develop, manufacture and provide innovative products and services and bring those offerings to market quickly at cost-effective prices. Some new products, particularly in our Aerospace group,segment, must meet extensive and time-consuming regulatory requirements that are often outside our control.control and may result in unanticipated delays. Additionally, due


to the highly specialized nature of our business, we must hire and retain the skilled and qualified personnel necessary to perform the services required by our customers. To the extent that the demand for skilled personnel exceeds supply, we could experience higher labor, recruiting or training costs in order to attract and retain such employees. If we were unable to develop new products that meet customers’ changing needs and satisfy regulatory requirements in a timely manner or successfully attract and retain qualified personnel, our future revenue and earnings may be materially adversely affected.
We have made and expect to continue to make investments, including acquisitions and joint ventures, that involve risks and uncertainties. When evaluating potential acquisitions and joint ventures,


we make judgments regarding the value of business opportunities, technologies, and other assets and the risks and costs of potential liabilities based on information available to us at the time of the transaction. Whether we realize the anticipated benefits from these transactions depends on multiple factors, including our integration of the businesses involved; the performance of the underlying products, capabilities or technologies; market conditions following the acquisition; and acquired liabilities, including some that may not have been identified prior to the acquisition. These factors could materially adversely affect our financial results.
Changes in business conditions may cause goodwill and other intangible assets to become impaired. Goodwill represents the purchase price paid in excess of the fair value of net tangible and intangible assets acquired in a business combination. Goodwill is not amortized and remains on our balance sheet indefinitely unless there is an impairment or a sale of a portion of the business. Goodwill is subject to an impairment test on an annual basis andor when circumstances indicate that the likelihood of an impairment is more likelygreater than not. 50%. Such circumstances include a significant adverse change in the business climate for one of our business groupsreporting units or a decision to dispose of a business groupreporting unit or a significant portion of a business group.reporting unit. We face some uncertainty in our business environment due to a variety of challenges, including changes in defensegovernment spending. We may experience unforeseen circumstances that adversely affect the value of our goodwill or intangible assets and trigger an evaluation of the amount of the recorded goodwill and intangible assets. Future write-offs of goodwill or other intangible assets as a result of an impairment in the business could materially adversely affect our results of operations and financial condition.
Our business could be negatively impacted by cyber securitycybersecurity events and other disruptions. We face various cyber securitycybersecurity threats, including threats to our information technology (IT) infrastructure and attempts to gain access to our proprietary or classified information, denial-of-service attacks, as well as threats to the physical security of our facilities and employees, and threats from terrorist acts. We also design and manage IT systems and products that contain IT systems for various customers. We generally face the same security threats for these systems as for our own internal systems. In addition, we face cyber threats from entities that may seek to target us through our customers, vendors, subcontractors and other third parties with whom we do business. Accordingly, we maintain information security staff, policies and procedures for managing risk to our information systems, and conduct employee training on cyber securitycybersecurity to mitigate persistent and continuously evolving cyber securitycybersecurity threats. However, there can be no assurance that any such actions will be sufficient to prevent cybersecurity breaches, disruptions, unauthorized release of sensitive information or corruption of data.
We have experienced cyber securitycybersecurity threats such as viruses and attacks targeting our IT systems. Such prior events have not had a material impact on our financial condition, results of operations or liquidity. However, future threats could, among other things, cause harm to our business and our reputation; disrupt our operations; expose us to potential liability, regulatory actions and loss of business; challenge our eligibility for future work on sensitive or classified systems for government customers; and impact our results of operations materially. Due to the evolving nature of these security threats, the potential impact


of any future incident cannot be predicted. Our insurance coverage may not be adequate to cover all the costs related to cyber securitycybersecurity attacks or disruptions resulting from such events.


FORWARD-LOOKING STATEMENTS
This Annual Report on Form 10-K contains forward-looking statements that are based on management’s expectations, estimates, projections and assumptions. Words such as “expects,” “anticipates,” “plans,” “believes,” “scheduled,” “outlook,” “estimates,” “should” and variations of these words and similar expressions are intended to identify forward-looking statements. Examples include projections of revenue, earnings, operating margin, segment performance, cash flows, contract awards, aircraft production, deliveries and backlog. In making these statements we rely on assumptions and analyses based on our experience and perception of historical trends, current conditions and expected future developments as well as other factors we consider appropriate under the circumstances. We believe our estimates and judgments are reasonable based on information available to us at the time. Forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. These statements are not guarantees of future performance and involve risks and uncertainties that are difficult to predict. Therefore, actual future results and trends may differ materially from what is forecast in forward-looking statements due to a variety of factors, including, without limitation, the risk factors discussed in this Form 10-K.
All forward-looking statements speak only as of the date of this report or, in the case of any document incorporated by reference, the date of that document. All subsequent written and oral forward-looking statements attributable to General Dynamics or any person acting on our behalf are qualified by the cautionary statements in this section. We do not undertake any obligation to update or publicly release any revisions to forward-looking statements to reflect events, circumstances or changes in expectations after the date of this report. These factors may be revised or supplemented in subsequent reports on SEC Forms 10-Q and 8-K.


ITEM 1B. UNRESOLVED STAFF COMMENTS
None.


ITEM 2. PROPERTIES
We operate in a number of offices, manufacturing plants, laboratories, warehouses and other facilities in the United States and abroad. We believe our facilities are adequate for our present needs and, given planned improvements and construction, expect them to remain adequate for the foreseeable future.
On December 31, 2017,2019, our business groupssegments had primary operations at the following locations:
Aerospace – Scottsdale, Arizona; Burbank, Lincoln, Long Beach and Van Nuys, California; West Palm Beach, Florida; Brunswick, Pooler and Savannah, Georgia; Cahokia, Illinois; Bedford and Westfield, Massachusetts; Las Vegas, Nevada; Teterboro, New Jersey; New York, New York; Tulsa, Oklahoma; San Juan, Puerto Rico; Dallas and Houston, Texas; Dulles, Virginia; Appleton, Wisconsin; Brisbane, Cairns, Darwin, Perth and Sydney, Australia; Vienna, Austria; Beijing, Hong Kong and Shanghai, China; Berlin, Dusseldorf and Munich, Germany; Jakarta, Indonesia; Kuala Lumpur, Malaysia; Valetta, Malta; Mexicali, Mexico; Amsterdam and Rotterdam, the Netherlands; Manila, Philippines; Singapore; Basel,

Aerospace – Burbank, Lincoln, Long Beach and Van Nuys, California; West Palm Beach, Florida; Brunswick and Savannah, Georgia; Cahokia, Illinois; Bedford and Westfield, Massachusetts; Las Vegas, Nevada; Teterboro, New Jersey; San Juan, Puerto Rico; Dallas and Houston, Texas; Dulles, Virginia; Appleton, Wisconsin; Vienna, Austria; Sorocaba, Brazil; Beijing and Hong Kong, China; Berlin, Dusseldorf and Munich, Germany; Valetta, Malta; Mexicali, Mexico; Moscow, Russia; Singapore; Basel,
Geneva and Zurich, Switzerland; Bangkok, Thailand; Dubai and Fujairah, United Arab Emirates; LutonFarnborough and Stansted,Luton, United Kingdom.
Combat Systems – Anniston, Alabama; East Camden and Hampton, Arkansas; Crawfordsville, St. Petersburg and Tallahassee, Florida; Marion, Illinois; Saco, Maine; Sterling Heights, Michigan; Joplin,


Missouri; Lincoln, Nebraska; Lima, Ohio; Eynon, Red Lion and Scranton, Pennsylvania; Ladson, South Carolina; Garland, Texas; Williston, Vermont; Auburn and Sumner, Washington; Vienna, Austria; La Gardeur, London, St. Augustin and Valleyfield, Canada; Kaiserslautern, Germany; Granada, Madrid, Sevilla and Trubia, Spain; Kreuzlingen, Switzerland; Merthyr Tydfil and Oakdale, United Kingdom.
Information Systems and Technology – Cullman, Alabama; Phoenix and Scottsdale, Arizona; San Jose, California; Pawcatuck, Connecticut; Lynn Haven and Riverview, Florida; Lawrence, Kansas; Annapolis Junction and Towson, Maryland; Dedham, Pittsfield, Taunton and Westwood, Massachusetts; Bloomington, Minnesota; Hattiesburg, Mississippi; Catawba, Conover and Greensboro, North Carolina; Kilgore, Plano and Wortham, Texas; Sandy, Utah; Chesapeake, Chester, Marion and several locations in Fairfax County, Virginia; Calgary and Ottawa, Canada; Tallinn, Estonia; Merthyr Tydfil, Oakdale and St. Leonards, United Kingdom.
Marine Systems – San Diego, California; Groton and New London, Connecticut; Jacksonville, Florida; Bath and Brunswick, Maine; North Kingstown, Rhode Island; Norfolk and Portsmouth, Virginia; Bremerton, Washington; Mexicali, Mexico.
Combat Systems – Anniston, Alabama; East Camden and Hampton, Arkansas; Crawfordsville, St. Petersburg and Tallahassee, Florida; Marion, Illinois; Saco, Maine; Sterling Heights, Michigan; Joplin, Missouri; Lincoln, Nebraska; Lima, Ohio; Eynon, Red Lion and Scranton, Pennsylvania; Ladson, South Carolina; Garland, Texas; Williston, Vermont; Auburn and Sumner, Washington; Vienna, Austria; La Gardeur, London, St. Augustin and Valleyfield, Canada; Berlin, Kaiserslautern, Neubrandenburg and Woldegk, Germany; Granada, Madrid, Sevilla and Trubia, Spain; Kreuzlingen and Tägerwilen, Switzerland; Merthyr Tydfil and Oakdale, United Kingdom.
Information Technology – Daleville, Alabama; Pawcatuck, Connecticut; Bossier City, Louisiana; Annapolis Junction and Columbia, Maryland; Westwood, Massachusetts; Rensselaer, New York; Fayetteville, North Carolina; Arlington, Chesapeake, Sterling and several locations in Fairfax County, Virginia.
Mission Systems – Cullman, Alabama; Scottsdale, Arizona; San Jose, California; Orlando, Florida; Annapolis Junction, Maryland; Dedham, Pittsfield and Taunton, Massachusetts; Bloomington, Minnesota; Florham Park, New Jersey; Catawba, Conover and Greensboro, North Carolina; Kilgore, Plano and Wortham, Texas; Fairfax and Marion, Virginia; Calgary, Halifax and Ottawa, Canada; Tallinn, Estonia; Oakdale and St. Leonards, United Kingdom.
Marine Systems – San Diego, California; Groton, New London and Stonington, Connecticut; Jacksonville, Florida; Bath and Brunswick, Maine; North Kingstown, Rhode Island; Norfolk and Portsmouth, Virginia; Bremerton, Washington; Mexicali, Mexico.
A summary of floor space by business groupsegment on December 31, 2017,2019, follows:
(Square feet in millions)
Company-owned
Facilities
 
Leased
Facilities
 
Government-owned
Facilities
 Total
Company-owned
Facilities
 
Leased
Facilities
 
Government-owned
Facilities
 Total
Aerospace5.9
 7.4
 
 13.3
6.3
 8.9
 
 15.2
Combat Systems7.2
 3.7
 5.5
 16.4
6.1
 4.3
 5.5
 15.9
Information Systems and Technology2.8
 7.7
 0.9
 11.4
Information Technology0.2
 4.7
 
 4.9
Mission Systems3.5
 3.7
 0.9
 8.1
Marine Systems8.1
 2.8
 
 10.9
8.2
 3.8
 
 12.0
Total square feet24.0
 21.6
 6.4
 52.0
24.3
 25.4
 6.4
 56.1


ITEM 3. LEGAL PROCEEDINGS
For information relating to legal proceedings, see Note O to the Consolidated Financial Statements in Item 8.
 
ITEM 4. MINE SAFETY DISCLOSURES
Not applicable.
INFORMATION ABOUT OUR EXECUTIVE OFFICERS OF THE COMPANY
All of our executive officers are appointed annually. None of our executive officers were selected pursuant to any arrangement or understanding between the officer and any other person. The name, age, offices and positions of our executives held for at least the past five years as of February 12, 2018,10, 2020, were as follows (references are to positions with General Dynamics Corporation, unless otherwise noted):


Name, Position and OfficeAge
  
Jason W. Aiken - Senior Vice President and Chief Financial Officer since January 2014; Vice President of the company and Chief Financial Officer of Gulfstream Aerospace Corporation, September 2011 - December 2013; Vice President and Controller, April 2010 - August 2011; Staff Vice President, Accounting, July 2006 - March 2010


4547
Christopher J. Brady - Vice President of the company and President of General Dynamics Mission Systems since January 2019; Vice President, Engineering of General Dynamics Mission Systems, January 2015 - December 2018; Vice President, Engineering of General Dynamics C4 Systems, May 2013 - December 2014; Vice President, Assured Communications Systems of General Dynamics C4 Systems, August 2004 - May 2013

57
  
Mark L. Burns - Vice President of the company and President of Gulfstream Aerospace Corporation since July 2015; Vice President of the company since February 2014; President, Product Support of Gulfstream Aerospace Corporation, June 2008 - June 201558
John P. Casey - Executive Vice President, Marine Systems, since May 2012; Vice President of the company and President of Electric Boat Corporation, October 2003 - May 2012; Vice President of Electric Boat Corporation, October 1996 - October 20036360
  
Gregory S. Gallopoulos - Senior Vice President, General Counsel and Secretary since January 2010; Vice President and Deputy General Counsel, July 2008 - January 2010; Managing Partner of Jenner & Block LLP, January 2005 - June 20085860
  


Jeffrey S. Geiger - Vice President of the company and President of Electric Boat Corporation since November 2013; Vice President of the company and President of Bath Iron Works Corporation, April 2009 - November 2013; Senior Vice President, Operations and Engineering of Bath Iron Works Corporation, March 2008 - March 200956
M. Amy Gilliland - Senior Vice President of the company since April 2015; President of General Dynamics Information Technology since September 2017; Deputy for Operations of General Dynamics Information Technology, April 2017 - September 2017; Senior Vice President, Human Resources and Administration, April 2015 - March 2017; Vice President, Human Resources, February 2014 - March 2015; Staff Vice President, Strategic Planning, January 2013 - February 2014; Staff Vice President, Investor Relations, June 2008 - January 20134345
  
Robert W. HelmKevin M. Graney - Senior Vice President, Planning and Development since May 2010; Vice President, Government Relations, of Northrop Grumman Corporation, August 1989 - April 2010

66
S. Daniel Johnson - Executive Vice President, Information Systems and Technology since January 2015; President of General Dynamics Information Technology, April 2008 - September 2017; Vice President of the company April 2008 - December 2014; Executiveand President of Electric Boat Corporation since October 2019; Vice President of the company and President of NASSCO, January 2017 - October 2019; Vice President and General Dynamics Information Technology, July 2006Manager of NASSCO, November 2013 - March 2008January 20177055
  
Kimberly A. Kuryea - Senior Vice President, Human Resources and Administration since April 2017; Vice President and Controller, September 2011 - March 2017; Chief Financial Officer of General Dynamics Advanced Information Systems, November 2007 - August 2011; Staff Vice President, Internal Audit, March 2004 - October 20075052
  
Christopher Marzilli - Executive Vice President, Information Technology and Mission Systems since January 2019; Vice President of the company and President of General Dynamics Mission Systems, since January 2015;2015 - December 2018; Vice President of the company and President of General Dynamics C4 Systems, January 2006 - December 2014; Senior Vice President and Deputy General Manager of General Dynamics C4 Systems, November 2003 - January 20065860
  
William A. Moss - Vice President and Controller since April 2017; Staff Vice President, Internal Audit, May 2015 - March 2017; Staff Vice President, Accounting, August 2010 - May 20155456
  
Phebe N. Novakovic - Chairman and Chief Executive Officer since January 2013; President and Chief Operating Officer, May 2012 - December 2012; Executive Vice President, Marine Systems, May 2010 - May 2012; Senior Vice President, Planning and Development, July 2005 - May 2010; Vice President, Strategic Planning, October 2002 - July 20056062
  
Mark C. Roualet - Executive Vice President, Combat Systems, since March 2013; Vice President of the company and President of General Dynamics Land Systems, October 2008 - March 2013; Senior Vice President and Chief Operating Officer of General Dynamics Land Systems, July 2007 - October 20085961
  


Robert E. Smith - Executive Vice President, Marine Systems, since July 2019; Vice President of the company and President of Jet Aviation, January 2014 - July 2019; Vice President and Chief Financial Officer of Jet Aviation, July 2012 - January 201452
Gary L. Whited - Vice President of the company and President of General Dynamics Land Systems since March 2013; Senior Vice President of General Dynamics Land Systems, September 2011 - March 2013; Vice President and Chief Financial Officer of General Dynamics Land Systems, June 2006 - September 20115759


PART II
 
ITEM 5. MARKET FOR THE COMPANY’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Our common stock is listed on the New York Stock Exchange.
The high and low sales prices of our common stock andExchange under the cash dividends declared on our common stock for each quarter of 2016 and 2017 are included in the Supplementary Data contained in Item 8.trading symbol “GD.”
On January 28, 2018,26, 2020, there were approximately 11,00010,000 holders of record of our common stock.
For information regarding securities authorized for issuance under our equity compensation plans, see Note PQ to the Consolidated Financial Statements contained in Item 8.


We did not make any unregistered sales of equity securities in 2017.2019.
The following table provides information about our fourth-quarter purchases of equity securities that are registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended:
Period Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Program Maximum Number of Shares That May Yet Be Purchased Under the Program
Pursuant to Share Buyback Program    
10/2/17-10/29/17 475,000
 $211.58
 475,000
 9,058,696
10/30/17-11/26/17 669,835
 200.78
 669,835
 8,388,861
11/27/17-12/31/17 803,451
 200.53
 803,451
 7,585,410
  1,948,286
 $203.31
    
Period Total Number of Shares Average Price per Share
Shares Delivered or Withheld Pursuant to Restricted Stock Vesting*
9/30/19-10/27/19 36
 $184.36
10/28/19-11/24/19 412
 183.36
11/25/19-12/31/19 
 
  448
 $183.44
* Represents shares withheld by, or delivered to, us pursuant to provisions in agreements with recipients of restricted stock granted under our equity compensation plans that allow us to withhold, or the recipient to deliver to us, the number of shares with a fair value equal to the statutory tax withholding due upon vesting of the restricted shares.
On December 5, 2018, the board of directors authorized management to repurchase up to 10 million additional shares of the company’s outstanding common stock on the open market. We did not repurchase any shares in the fourth quarter of 2019. On December 31, 2019, 6.4 million shares remained authorized by our board of directors for repurchase.
For additional information relating to our purchases of common stock during the past three years, see Note M to the Consolidated Financial Condition, Liquidity and Capital Resources - Financing Activities - Share Repurchases containedStatements in Item 7.8.
The following performance graph compares the cumulative total return to shareholders on our common stock, assuming reinvestment of dividends, with similar returns for the Standard & Poor’s® 500 Index and the Standard & Poor’s® Aerospace & Defense Index, both of which include General Dynamics.



Cumulative Total Return
Based on Investments of $100 Beginning December 31, 20122014
(Assumes Reinvestment of Dividends)
chart-d5e9b093db785b86985.jpg




ITEM 6. SELECTED FINANCIAL DATA
The following table presents selected historical financial data derived from the Consolidated Financial Statements and other company information for each of the five years presented. This information should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 7 and the Consolidated Financial Statements and the Notes thereto.thereto in Item 8.
(Dollars and shares in millions, except per-share and employee amounts)      
    
 2017 2016 2015 2014 2013
Summary of Operations          
Revenue $30,973
 $30,561
 $31,781
 $30,852
 $30,930
Operating earnings 4,177
 3,734
 4,295
 3,889
 3,689
Operating margin 13.5% 12.2% 13.5% 12.6% 11.9%
Interest, net (103) (91) (83) (86) (86)
Provision for income tax, net 1,165
 977
 1,183
 1,129
 1,125
Earnings from continuing operations 2,912
 2,679
 3,036
 2,673
 2,486
Return on sales (a) 9.4% 8.8% 9.6% 8.7% 8.0%
Discontinued operations, net of tax 
 (107) 
 (140) (129)
Net earnings 2,912
 2,572
 3,036
 2,533
 2,357
Diluted earnings per share:          
Continuing operations 9.56
 8.64
 9.29
 7.83
 7.03
Net earnings 9.56
 8.29
 9.29
 7.42
 6.67
Cash Flows          
Net cash provided by operating activities $3,879
 $2,198
 $2,607
 $3,828
 $3,159
Net cash (used) provided by investing activities (791) (426) 200
 (1,102) (363)
Net cash used by financing activities (2,399) (2,169) (4,367) (3,675) (773)
Net cash (used) provided by discontinued operations (40) (54) (43) 36
 (18)
Cash dividends declared per common share 3.36
 3.04
 2.76
 2.48
 2.24
Financial Position          
Cash and equivalents $2,983
 $2,334
 $2,785
 $4,388
 $5,301
Total assets 35,046
 33,172
 32,538
 34,648
 35,158
Short- and long-term debt 3,982
 3,888
 3,399
 3,893
 3,888
Shareholders’ equity 11,435
 10,301
 10,440
 11,829
 14,501
Debt-to-equity (b) 34.8% 37.7% 32.6% 32.9% 26.8%
Book value per share (c) 38.52
 34.06
 33.36
 35.61
 41.03
Other Information          
Free cash flow from operations (d) $3,451
 $1,806
 $2,038
 $3,307
 $2,723
Return on invested capital (d) 16.8% 16.3% 18.1% 15.1% 14.1%
Funded backlog 52,031
 51,783
 53,449
 52,929
 38,284
Total backlog 63,175
 62,206
 67,786
 72,410
 45,885
Shares outstanding 296.9
 302.4
 313.0
 332.2
 353.4
Weighted average shares outstanding:          
Basic 299.2
 304.7
 321.3
 335.2
 350.7
Diluted 304.6
 310.4
 326.7
 341.3
 353.5
Employees 98,600
 98,800
 99,900
 99,500
 96,000
Note: All prior-period information has been restated for the adoption of Accounting Standards Update (ASU) 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. Prior-period information for 2016 and 2015 has been restated for the adoption of Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers, while prior-period information for 2014 and 2013 has not been restated and is, therefore, not comparable to the 2017, 2016 and 2015 information. For further discussion of these two standards, see Note T to the Consolidated Financial Statements in Item 8.
(Dollars and shares in millions, except per-share and employee amounts)      
    
 2019 2018 2017 2016 2015
Summary of Operations          
Revenue $39,350
 $36,193
 $30,973
 $30,561
 $31,781
Operating earnings 4,648
 4,457
 4,236
 3,744
 4,494
Operating margin 11.8% 12.3% 13.7% 12.3% 14.1%
Interest, net (460) (356) (103) (91) (83)
Provision for income tax, net (718) (727) (1,165) (977) (1,183)
Earnings from continuing operations 3,484
 3,358
 2,912
 2,679
 3,036
Return on sales (a) 8.9% 9.3% 9.4% 8.8% 9.6%
Discontinued operations, net of tax 
 (13) 
 (107) 
Net earnings 3,484
 3,345
 2,912
 2,572
 3,036
Diluted earnings per share:          
Continuing operations 11.98
 11.22
 9.56
 8.64
 9.29
Net earnings 11.98
 11.18
 9.56
 8.29
 9.29
Cash Flows          
Net cash provided by operating activities $2,981
 $3,148
 $3,876
 $2,163
 $2,607
Net cash (used) provided by investing activities (994) (10,234) (788) (391) 200
Net cash (used) provided by financing activities (1,997) 5,086
 (2,399) (2,169) (4,367)
Net cash used by discontinued operations (51) (20) (40) (54) (43)
Cash dividends declared per common share 4.08
 3.72
 3.36
 3.04
 2.76
Financial Position          
Cash and equivalents $902
 $963
 $2,983
 $2,334
 $2,785
Total assets 48,841
 45,408
 35,046
 33,172
 32,538
Short- and long-term debt 11,930
 12,417
 3,982
 3,888
 3,399
Shareholders’ equity 13,577
 11,732
 11,435
 10,301
 10,440
Debt-to-equity (b) 87.9% 105.8% 34.8% 37.7% 32.6%
Debt-to-capital (c) 46.8% 51.4% 25.8% 27.4% 24.6%
Book value per share (d) 46.88
 40.64
 38.52
 34.06
 33.36
Other Information          
Free cash flow from operations (e) $1,994
 $2,458
 $3,448
 $1,771
 $2,038
Return on equity (f) 27.2% 28.1% 26.6% 25.6% 27.7%
Return on invested capital (e) 14.0% 15.4% 16.8% 16.3% 18.1%
Funded backlog 57,530
 55,826
 52,031
 51,783
 53,449
Total backlog 86,945
 67,871
 63,175
 62,206
 67,786
Shares outstanding 289.6
 288.7
 296.9
 302.4
 313.0
Weighted average shares outstanding:          
Basic 288.3
 295.3
 299.2
 304.7
 321.3
Diluted 290.8
 299.2
 304.6
 310.4
 326.7
Employees 102,900
 105,600
 98,600
 98,800
 99,900
(a)Return on sales is calculated as earnings from continuing operations divided by revenue.
(b)Debt-to-equity ratio is calculated as total debt divided by total equity as of year end.
(c)Debt-to-capital ratio is calculated as total debt divided by the sum of total debt plus total equity as of year end.
(d)Book value per share is calculated as total equity divided by total outstanding shares as of year end.
(d)(e)See Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, for a reconciliation of net cash provided by operating activities to free cash flow from operations and the calculation of return on invested capital (ROIC), both of which are non-GAAP management metrics.
(f)Return on equity is calculated by dividing earnings from continuing operations by our average equity during the year.






ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollars in millions, except per-share amounts or unless otherwise noted)
A discussion regarding our financial condition and results of operations for 2019 compared with 2018 is presented below. A discussion regarding our financial condition and results of operations for 2018 compared with 2017 can be found in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2018.
For an overview of our business groups,operating segments, including a discussion of our major products and services, see the Business discussion contained in Item 1. The following discussion should be read in conjunction with our Consolidated Financial Statements included in Item 8.
On February 12, 2018, we announced that we had entered into a definitive agreement to acquire all of the outstanding shares of CSRA for $40.75 per share in cash. The transaction is valued at $9.6 billion, including the assumption of $2.8 billion in CSRA debt. We anticipate financing the transaction through a combination of available cash and new debt financing. We will commence a cash tender offer to purchase all of the outstanding shares of CSRA common stock. The tender offer is subject to customary conditions, including antitrust clearance and the tender of a majority of the outstanding shares of CSRA common stock. We expect to complete the acquisition in the first half of 2018. The forward-looking statements contained in Item 7 do not include any estimated amounts for the CSRA acquisition and any associated impacts.


BUSINESS ENVIRONMENT
With approximately 60%65% of our revenue from the U.S. government, our financial performance is impacted by U.S. government spending levels, particularly defense spending.spending, influence our financial performance. Over the past several years, U.S. defense spending has been mandated by the Budget Control Act of 2011 (BCA). The BCA establishes spending caps over a 10-year period through 2021.2021, including a sequester mechanism that would impose additional defense cuts if an annual defense appropriations bill is enacted above the spending cap.
On February 9, 2018,August 2, 2019, the Congress approved increases toBipartisan Budget Act of 2019 (BBA) was signed into law, which raised discretionary spending limits established by the BCA spending caps and a budget for fiscal yearsyear (FY) 20182020 and 2019. The FY 20182021. On December 20, 2019, the FY 2020 defense budget totals $700appropriations bill was signed into law. It totaled $691 billion which includes $629and included $619 billion in the base budget in compliance with the modified BCABBA spending caps and $71$72 billion for overseas contingency operations, representing an increase of more than 10%approximately 3% over FY 2017 spending levels. Thethe total FY 2019 defense budget totals $716 billion. However, federal agencies and programs do not receive funding at the new levels until the corresponding appropriations bills are approved. The Congress has not yet passed the FY 2018 defense appropriation bill. As a result, we have been operating under a series of continuing resolutions (CRs), which have funded government agencies at FY 2017 spending levels, since the beginning of the government’s fiscal year. As of the filing of this Form 10-K on February 12, 2018, the current CR, signed into law on February 9, 2018, funds the government through March 23, 2018. We do not anticipate that these CRs will have a material impact on our results of operations, financial condition or cash flows.level.
The long-term outlook for our U.S. defense business is influenced by the relevance of our programs to the U.S. military’s funding priorities, the diversity of our programs and customers, our insight into customer requirements stemming from our incumbency on core programs, our ability to evolve our products to address a fast-changing threat environment and our proven track record of successful contract execution.
International demand for military equipment and information technologies presents opportunities for our non-U.S. operations and exports from our North American businesses. While the revenue potential can be significant, there are risks to doing business in foreign countries, including changing budget priorities and overall spending pressures unique to each country.
In our Aerospace group,segment, we continue to experience strong demand across our product portfolio. We expect our continued investment in the development of new aircraft products and technologies to support


the Aerospace group’ssegment’s long-term growth. Similarly, we believe the aircraft services business will be a strong source of steady revenue growth as the global business-jet fleet grows.continues to grow.
Across our portfolio, we focus on expanding operating earnings and the efficient conversion of earnings into cash. We emphasize effective program execution and the flexibility and agility to respond to changing circumstances in our business environment, and look for opportunities to drive cost reduction across our business.




RESULTS OF OPERATIONS
INTRODUCTION
An understanding of our accounting practices is necessary in the evaluation of our financial statements and operating results. The following paragraphs explain how we recognize revenue and operating costs in our business groups. We account for revenue in accordance with Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers, whichoperating segments and the terminology we adopted on January 1, 2017. Prior-period information has been restated for the adoption as further discussed in Note Tuse to the Consolidated Financial Statements in Item 8.describe our operating results.
In the Aerospace group,segment, we record revenue on contracts for new aircraft when the customer obtains control of the asset, which is generally upon delivery and acceptance by the customer of the fully outfitted aircraft. Revenue associated with the group’ssegment’s custom completions of other original equipment manufacturers’ (OEMs)narrow-body and wide-body aircraft and the group’ssegment’s services businesses is recognized as work progresses or upon delivery of services. Fluctuations in revenue from period to period result from the number and mix of new aircraft deliveries, progress on aircraft completions, and the level and type of aircraft service activityservices performed during the period.
The majority of the Aerospace group’ssegment’s operating costs relaterelates to new aircraft production on firm orders and consistconsists of labor, material, subcontractor and overhead costs. The costs are accumulated in production lots, recorded in inventory and recognized as operating costs at aircraft delivery based on the estimated average unit cost in a production lot. While changes in the estimated average unit cost for a production lot impact the level of operating costs, the amount of operating costs reported in a given period is based largely on the number and type of aircraft delivered. Operating costs in the Aerospace group’ssegment’s completions and services businesses are recognized generally as incurred.
For new aircraft, operating earnings and margin are a function of the prices of our aircraft, our operational efficiency in manufacturing and outfitting the aircraft, and the mix of ultra-large-cabin, large-cabin and mid-cabin aircraft deliveries. Aircraft mix can also refer to the stage of program maturity for our aircraft models. A new aircraft model typically has lower margins in its initial production lots, and then margins generally increase as we realize efficiencies in the production process. Additional factors affecting the group’ssegment’s earnings and margin include the volume, mix and profitability of completions and services work performed, the volume of and market for pre-owned aircraft, and the level of general and administrative (G&A) and net research and development (R&D) costs incurred by the group.segment.
In the three defense groups,segments, revenue on long-term government contracts is recognized generally over time as the work progresses, either as the products are produced or as services are rendered. Typically, revenue is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material, overhead and, when appropriate, G&A expenses. Variances in costs recognized from period to period reflect primarily increases and decreases in production or activity levels on individual


contracts. Because costs are used as a measure of progress, year-over-year variances in cost result in corresponding variances in revenue, which we generally refer to as volume.
Operating earnings and margin in the defense groupssegments are driven by changes in volume, performance or contract mix. Performance refers to changes in profitability based on adjustments to estimates at completion on individual contracts. These adjustments result from increases or decreases to the estimated value of the contract, the estimated costs to complete the contract or both. Therefore, changes in costs incurred in the period compared with prior periods do not necessarily impact profitability. It is only when total estimated costs at completion on a given contract change without a corresponding change in the contract value (or vice versa) that the profitability of that contract may be impacted. Contract mix refers to changes in the volume of higher- versus lower-margin work. Additionally, higherHigher or lower margins can be inherent in theresult from a


number of factors, including contract type (e.g., fixed-price/cost-reimbursable) orand type of work (e.g., development/production). Contract mix can also refer to the stage of program maturity for our long-term production contracts. New long-term production contracts typically have lower margins initially, and then margins generally increase as we achieve learning curve improvements or realize other cost reductions.


CONSOLIDATED OVERVIEW
20172019 IN REVIEW
OutstandingRecord-high operating performance:
Revenue increased to $31of $39.4 billion with growth in all of our Aerospace and Combat Systems groups.segments.
Operating earnings of $4.2$4.6 billion, and operating marginan increase of 13.5% increased 11.9% and 130 basis points, respectively,4.3% from 2016.
Return on sales increased 60 basis points from 2016 to 9.4%.2018.
Earnings from continuing operations per diluted share of $9.56 increased 10.6%$11.98, an increase of 6.8% from 2016.2018.
Free cash flow from operations was 119% of earnings from continuing operations.
$2.9 billion of cash deployed for share repurchases, dividends and business acquisitions, consistent with 2016.
Return on invested capital (ROIC) of 16.8%, 50 basis points higher than 2016.
RobustRecord-high backlog of $63.2$86.9 billion increased nearly $1$19.1 billion, or 28.1%, from 2016,2018, supporting our long-term growth expectations.expectations:
Net orders for Gulfstream aircraft increased over 20%57% from 2016.2018 and reflected significant demand for the new G700 aircraft.
Several significant contract awards received in 20172019 in our defense groups.segments, including $22.2 billion for Block V of the Virginia-class submarine program in our Marine Systems segment, the largest shipbuilding contract in the U.S. Navy’s history.
REVIEW OF 2017 VS. 2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue$30,973
 $30,561
 $412
 1.3 %$39,350
 $36,193
 $3,157
 8.7%
Operating costs and expenses26,796
 26,827
 (31) (0.1)%(34,702) (31,736) (2,966) 9.3%
Operating earnings4,177
 3,734
 443
 11.9 %4,648
 4,457
 191
 4.3%
Operating margin13.5% 12.2%    11.8% 12.3%    
Our consolidated revenue increased 8.7% in 20172019 driven by higher volume acrossdeliveries of the new G500 and G600 aircraft in our Aerospace segment and new contracts from the U.S. government for military vehicles in our Combat Systems groupsegment and increased revenue from aircraft deliveries and aircraft servicessubmarines in our Aerospace group. These increasesMarine Systems segment.


were offset partially by lower C4ISR (command, control, communications, computers, intelligence, surveillance and reconnaissance) solutions revenue in our Information Systems and Technology group.
While revenue increased, operating costs and expenses decreased, resulting in an 11.9% increase in operating earnings and margin growth of 130 basis points. Operating earnings and margin expanded at each of our business groups in 2017.
REVIEW OF 2016 VS. 2015
Year Ended December 312016 2015 Variance
Revenue$30,561
 $31,781
 $(1,220) (3.8)%
Operating costs and expenses26,827
 27,486
 (659) (2.4)%
Operating earnings3,734
 4,295
 (561) (13.1)%
Operating margin12.2% 13.5%  
  
Revenue was down in 2016 due to fewer G550 and G450 large-cabin and G280 mid-cabin aircraft deliveries in our Aerospace group. This decrease was offset partially by higher C4ISR solutions volume in our Information Systems and Technology group. Operating costs and expenses decreased at a lower rate than revenue declined in 2016, resulting in a 130 basis-point decrease in consolidated operating margin compared with 2015. Operating margin decreased in 2019 due primarily to the Aerospace, Combat Systemstransition from mature products and Marine Systems groups.contracts to newer ones, which typically have lower initial margins.


REVIEW OF BUSINESS GROUPS
Year Ended December 312017 2016 2015
 Revenue 
Operating 
Earnings
 Revenue 
Operating
 Earnings
 Revenue 
Operating
 Earnings
Aerospace$8,129
 $1,593
 $7,815
 $1,407
 $9,177
 $1,807
Combat Systems5,949
 937
 5,530
 831
 5,643
 886
Information Systems and Technology8,891
 1,011
 9,144
 941
 8,929
 895
Marine Systems8,004
 685
 8,072
 595
 8,032
 748
Corporate*
 (49) 
 (40) 
 (41)
Total$30,973
 $4,177
 $30,561
 $3,734
 $31,781
 $4,295
* Corporate operating results consist primarily of stock option expense.OPERATING SEGMENTS
Following is a discussion of operating results and outlook for each of our business groups.operating segments. For the Aerospace group,segment, results are analyzed by specific types of products and services, consistent with how the groupsegment is managed. For the defense groups,segments, the discussion is based on markets and the lines of products and services each group offersoffered with a supplemental discussion of specific contracts and programs when significant to the group’s results. Additional information regarding our business groupssegments can be found in Note RS to the Consolidated Financial Statements in Item 8.



AEROSPACE
Review of 2017 vs. 2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue$8,129
 $7,815
 $314
 4.0 %$9,801
 $8,455
 $1,346
 15.9%
Operating earnings1,593
 1,407
 186
 13.2 %1,532
 1,490
 42
 2.8%
Operating margin19.6% 18.0%    15.6% 17.6%    
Gulfstream aircraft deliveries (in units)120
 121
 (1)
 (0.8)%147
 121
 26
 21.5%
Operating Results
The increase in the Aerospace group’ssegment’s revenue in 20172019 consisted of the following:
Aircraft manufacturing, outfitting and completions$246
Aircraft services118
Aircraft manufacturing$1,120
Aircraft services and completions67
Pre-owned aircraft(50)159
Total increase$314
$1,346
Aircraft manufacturing outfitting and completions revenue increased due toprimarily from the initial deliveries of the new large-cabin G600 aircraft, which entered into service in the third quarter of 2019, and additional deliveries of the ultra-large-cabin G650 and mid-cabin G280 aircraft. This growth was offset in part by a decrease in the number of G450 and G550 large-cabin G500 aircraft, deliveries as we transition from the production of these models to the new G500 and G600, which are scheduled to enterentered into service in the third quarter of 2018. We also had three fewer pre-owned aircraft sales in 2017 compared with 2016 (five versus eight). Aircraft services revenue increased, driven by higher demand for maintenance work and the small acquisition of a fixed-base operation (FBO) in 2017.
The increase in the group’s operating earnings in 2017 consisted of the following:
Aircraft manufacturing, outfitting and completions$238
Aircraft services8
Pre-owned aircraft11
G&A/other expenses(71)
Total increase$186
Aircraft manufacturing, outfittingaircraft services and completions earnings were up due to favorable cost performance and mix of ultra-large- and large-cabin aircraft deliveries. G&A/other expenses were higher in 2017 due primarily to increased R&D expenses associated with ongoing product-development efforts as the group progresses with the certification of the G500 and G600. Overall, the Aerospace group’s operating margin increased 160 basis points to 19.6%.
Review of 2016 vs. 2015
Year Ended December 312016 2015 Variance
Revenue$7,815
 $9,177
 $(1,362) (14.8)%
Operating earnings1,407
 1,807
 (400) (22.1)%
Operating margin18.0% 19.7%    
Gulfstream aircraft deliveries (in units)121
 152
 (31)
 (20.4)%


The Aerospace group’s revenue and operating earnings decreased in 2016 due primarily to fewer G550 and G450 large-cabin and G280 mid-cabin aircraft deliveries. Operating earnings also decreased in 2016 due to a supplier settlement received in 2015 associated with aircraft component design and delivery delays. Partially offsetting these decreases, the group’s aircraft services revenue and operating earnings increasedwas driven by higher demand for maintenance work and the acquisition in the second quarter of an2018 of Hawker Pacific, a leading provider of aircraft managementservices across the Asia-Pacific region and charter services providerthe Middle East. Additionally, we had fifteen pre-owned aircraft sales in 2016. 2019 compared with seven in 2018.
The increase in the segment’s operating earnings in 2019 consisted of the following:
Aircraft manufacturing$50
Aircraft services and completions38
Pre-owned aircraft(13)
G&A/other expenses(33)
Total increase$42
Aircraft servicesmanufacturing operating earnings were particularly strong in 2016up due to additional deliveries in 2019, driven by the introduction into service of the G600 and increased production of the G500. The growth in revenue outpaced the earnings growth due to lower margins associated with the G500, which are typical of a favorable mix of worknew aircraft model. We expect the operating margins associated with both the G500 and labor efficiencies. Additionally, the group’s 2016 operating earnings were impacted favorably by lowerG600 to increase over time as manufacturing learning curve improvements are achieved.
Net G&A/other expenses aswere up in 2019 due to nonrecurring costs associated with a resultreduction in our employee workforce in the fourth quarter of cost savings initiatives. Overall,2019 related primarily to streamlining support and administrative functions. This increase was offset partially by lower R&D expense in 2019, which has been trending downward with the completion of the G500 and G600 aircraft test programs, offset partially by increased activities associated with the development of the new G700 aircraft model. In total, the Aerospace group’ssegment’s operating margin decreased 170200 basis points to 18%15.6%.
2018

2020 Outlook
We expect the Aerospace group’s 2018segment’s 2020 revenue to increase between 2 and 3% from 2017. Operatingbe around $10 billion with operating margin is expectedin the 15.7% to be 18%, down slightly from 2017 as a result of mix shift as the group transitions to the new G500 and G600 aircraft as well as higher pre-owned aircraft sales.15.8% range.
COMBAT SYSTEMS
Review of 2017 vs. 2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue$5,949
 $5,530
 $419
 7.6%$7,007
 $6,241
 $766
 12.3%
Operating earnings937
 831
 106
 12.8%996
 962
 34
 3.5%
Operating margin15.8% 15.0%  
  
14.2% 15.4%  
  
Operating Results
The increase in the Combat Systems group’ssegment’s revenue in 20172019 consisted of the following:
U.S. military vehicles$250
$480
Weapons systems and munitions144
228
International military vehicles25
58
Total increase$419
$766
Revenue was up across the Combat Systems groupsegment in 2017.2019. Revenue from U.S. military vehicles increased due primarily to higher volume on the Army’s Abrams and Stryker programs, including work to produce Abrams M1A2 System Enhancement Package Version 3 (SEPv3) tankstank and upgrade Stryker vehicles with an integrated 30-millimeter cannon and additional upgrades.new Mobile Protected Firepower (MPF) vehicle programs. Weapons systems and munitions revenue was up due primarily tofrom increased production ofvolume on several products, including bombs and Hydra-70 rockets and other artillery for the U.S. government.Army and missile subcomponents. Revenue from international military vehicles increased due to the ramp up in production on the British AJAX armoured fighting vehiclehigher tank program and several international light armored vehicle (LAV) programs, offset largely by lower revenue on a large combat-vehicle contract in the Middle East as the group transitions from engineering to production.volume.
The Combat Systems group’s operating margin increased 80 basis points driven by improved operating performance across the group’s portfolio. Operating earnings in 2016 included the impact of a loss on the design and development phase of the AJAX program.


Review of 2016vs. 2015
Year Ended December 312016 2015 Variance
Revenue$5,530
 $5,643
 $(113) (2.0)%
Operating earnings831
 886
 (55) (6.2)%
Operating margin15.0% 15.7%    
The Combat Systems group’s revenue decreased in 2016 due primarily to lower international military vehicles revenue driven by decreased volume on the large combat-vehicle contract in the Middle East and the timing of work on the group’s contract to upgrade and modernize LAV III combat vehicles for the Canadian Army. These decreases were offset partially by higher volume on the group’s contract to deliver Piranha vehicles to the Danish Ministry of Defense.
The Combat Systems group’ssegment’s operating margin decreased 70120 basis points compared with 2018 driven by new contracts with initially lower margins in 2016 due primarilyour U.S. military vehicles business and an unfavorable settlement in the first quarter of 2019 relating to a lease at a former operating site outside the loss on the design and development phase of the AJAX program. The impact of this loss was offset partially by favorable contract mix and improved operating performance.United States.
20182020 Outlook
We expect the Combat Systems group’s 2018segment’s 2020 revenue to increase between 3 and 4% from 2017. Operatingbe about $7.3 billion with operating margin is expected to be in the mid- to high-15% range.of approximately 14.3%.
INFORMATION SYSTEMS AND TECHNOLOGY
Review of 2017 vs. 2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue$8,891
 $9,144
 $(253) (2.8)%$8,422
 $8,269
 $153
 1.9%
Operating earnings1,011
 941
 70
 7.4 %628
 608
 20
 3.3%
Operating margin11.4% 10.3%    7.5% 7.4%    


Operating Results
The changeincrease in the Information Systems and Technology group’ssegment’s revenue in 20172019 consisted of the following:
C4ISR solutions$(235)
Information technology (IT) services(18)
Total decrease$(253)
Defense$311
Federal civilian(97)
Intelligence and homeland security(61)
Total increase$153
C4ISR solutions revenue decreased as a result of funding delays across a number of programs, including the Warfighter Information Network-Tactical (WIN-T) mobile communications network and Common Hardware Systems-4 (CHS-4) computing and communications equipment programs, caused by the seven-month FY 2017 CR. Revenue decreased slightly in our IT services businessincreased due to delaysan additional quarter of CSRA volume as the business was acquired in procurement activities across a numberthe second quarter of programs, particularly2018. This increase was offset partially by lower revenue in our federal civilian business offset largely by the acquisition in late 2017as a result of a provider of mission-critical support services.
Despite the lower revenue, operating earnings increased, and operating margin expanded 110 basis points. The margin growth was driven primarily by strong program performance and favorable contract mix across the portfolio.


Review of 2016 vs. 2015
Year Ended December 312016 2015 Variance
Revenue$9,144
 $8,929
 $215
 2.4%
Operating earnings941
 895
 46
 5.1%
Operating margin10.3% 10.0%    
Revenue in the Information Systems and Technology group was up in 2016 driven by higher volume across the C4ISR solutions business, including the WIN-T program and several programs in Canada and the United Kingdom. Revenue decreased in our IT services business driven by lower volume on our health solutions programs, including less contact-center services work for the Centers for Medicare & Medicaid Services.
The group’s operating margin increased 30 basis points in 2016 driven primarily by improved operating performance. Operating earnings in 2015 included a gain of $23 on the sale of a commercial cyberthe segment’s public-facing contact-center business in the fourth quarter of 2018 and other portfolio shaping following the CSRA acquisition. Revenue in our intelligence and homeland security product business. Excludingbusiness was lower due to the impacttiming of this gain oncompletion of several legacy programs in 2018 versus the prior-year period, the group’s operatingstart-up of new programs. Operating margin increased 5010 basis points in 2016.compared with 2018 due largely to acquisition-related synergies.
20182020 Outlook
We expect the Information Systems and Technology group’s 2018segment’s 2020 revenue to increasebe between 5$8.4 and 6% from 2017,$8.5 billion with operating margin around 11%of approximately 7.6%.
MARINEMISSION SYSTEMS
Review of 2017vs.2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue$8,004
 $8,072
 $(68) (0.8)%$4,937
 $4,726
 $211
 4.5%
Operating earnings685
 595
 90
 15.1 %683
 659
 24
 3.6%
Operating margin8.6% 7.4%    13.8% 13.9%    
Operating Results
The changeincrease in the MarineMission Systems group’ssegment’s revenue in 20172019 consisted of the following:
Commercial ship construction$(253)
U.S. Navy ship construction(66)
U.S. Navy ship engineering, repair and other services251
Total decrease$(68)
Naval, air and electronic systems$137
Ground systems and products58
Space, intelligence and cyber systems16
Total increase$211
Revenue was down from Jones Act commercial ship construction followingup across the deliveryMission Systems segment in 2019. Increased volume on combat and seaframe control systems for the U.S. Navy’s Independence-variant Littoral Combat Ships (LCSs) and fire-control systems for the Navy’s submarine programs drove the increase in the naval, air and electronic systems business. Ground systems and products revenue was up due to higher demand for computing and communications equipment. The Mission Systems segment’s operating margin decreased slightly in 2019 due primarily to mix.
2020 Outlook
We expect the Mission Systems segment’s 2020 revenue to be between $5 and $5.1 billion with operating margin of six shipsapproximately 14.1%.


MARINE SYSTEMS
Year Ended December 312019 2018 Variance
Revenue$9,183
 $8,502
 $681
 8.0%
Operating earnings785
 761
 24
 3.2%
Operating margin8.5% 9.0%    
Operating Results
The increase in 2016 and two shipsthe Marine Systems segment’s revenue in 2017. 2019 consisted of the following:
U.S. Navy ship construction$717
U.S. Navy ship engineering, repair and other services68
Commercial ship construction(104)
Total increase$681
Revenue from U.S. Navy ship construction decreasedwas up due to timinghigher volume on Block V of the Virginia-class submarine program, the Columbia-class submarine program and the Arleigh Burke-class (DDG-51) destroyer program, offset partiallysomewhat by higher volume on the Navy’s Expeditionary Sea Base (ESB) program.lower Virginia-class Block III volume. Revenue from U.S. Navy ship engineering, repair and other services increased in 2017 due primarily to additional work related to the Columbia-class submarine development program and Virginia-class submarine design enhancements, anddriven by a higher volume of submarinesurface ship repair work. These increases were offset partially by lower commercial ship construction volume at our NASSCO shipyard.
The Marine Systems group’ssegment’s operating margin increased 120decreased 50 basis points in 2019 due primarily to the 2016 impact of cost growth associatedmix shift in our submarine and auxiliary ship workloads to newer contracts with the restart of the Navy’s DDG-51 program. The group’s operating margin was also affected favorably in 2017 by a decrease in lower-margin commercial ship work.lower initial margins.


Review of 2016 vs. 2015
Year Ended December 312016 2015 Variance
Revenue$8,072
 $8,032
 $40
 0.5 %
Operating earnings595
 748
 (153) (20.5)%
Operating margin7.4% 9.3%  
  
Revenue increased in the Marine Systems group in 2016 due primarily to additional development work on the Columbia-class submarine program, offset partially by lower Jones Act commercial ship construction volume.
Operating margin decreased 190 basis points in 2016 due to the DDG-51 program cost growth discussed above. Additionally, operating earnings in 2015 benefited from favorable cost performance on Block III of the Virginia-class submarine program.
20182020 Outlook
We expect the Marine Systems group’s 2018segment’s 2020 revenue to increase between 5 and 6% from 2017. Operatingbe approximately $9.8 billion with operating margin is expected to be in the mid- to high-8% range.of around 8.6%.
CORPORATE
Corporate operating results consisted of the following:
Year Ended December 312019 2018
Operating income (expense)$24
 $(23)
Corporate operating results in 2018 included one-time transaction-related charges of approximately $45 associated with the costs totaled $49 in 2017, $40 in 2016to complete the CSRA acquisition. Excluding these charges, Corporate operating results have two primary components: pension and $41 in 2015other post-retirement benefit income, and consisted primarily of stock option expense. Corporate operating costs in 2018 will be impacted by the adoption of Accounting Standards Update (ASU) 2017-07 on January 1, 2018. ASU 2017-07 requires
We are required to report the non-service cost components of pension and other post-retirement benefit cost (e.g., interest cost) to be reported in other income (expense) in the income statement.Consolidated Statement of Earnings. In our three defense groups,segments, pension and other post-retirement benefit costs are allocablerecoverable contract costs. For these groups, we will report the adjustment forTherefore, the non-service cost components are included in Corporatethe operating results.results of these segments, but an offset is reported in Corporate. This amount will offsetexceeded our stock option expense resulting in expected Corporate operating costs in 2018 of essentially zero. For further discussion of the adoption of ASU 2017-07, see Note A to the Consolidated Financial Statements in Item 8.2019 and 2018.




OTHER INFORMATION
PRODUCT AND SERVICE REVENUE AND OPERATING COSTS
Review of 2017 vs. 2016
Year Ended December 312017 2016 Variance2019 2018 Variance
Revenue:              
Products$19,016
 $19,010
 $6
  %$23,130
 $20,149
 $2,981
 14.8%
Services11,957
 11,551
 406
 3.5 %16,220
 16,044
 176
 1.1%
Operating Costs:              
Products$14,799
 $15,159
 $(360) (2.4)%$(18,569) $(15,894) $(2,675) 16.8%
Services9,987
 9,746
 241
 2.5 %(13,722) (13,584) (138) 1.0%
The increase in product revenue in 20172019 consisted of the following:
Aircraft manufacturing$1,120
Ship construction609
Military vehicle production$261
473
Aircraft manufacturing, outfitting and completions246
Ship construction(310)
C4ISR products(173)
C4ISR products*327
Weapons systems and munitions228
Other, net(18)224
Total increase$6
$2,981
* C4ISR (command, control, communications, computers, intelligence, surveillance and reconnaissance) solutions in our Mission Systems segment
Aircraft manufacturing revenue increased due primarily to the initial deliveries of the new large-cabin G600 aircraft and additional deliveries of the large-cabin G500 aircraft. Ship construction revenue increased due to higher volume on Block V of the Virginia-class submarine program, the Columbia-class submarine program and the DDG-51 destroyer program, offset a bit by lower commercial ship construction volume. Military vehicle production revenue increased due primarily to higher volume on the U.S. Army’s Abrams SEPv3 tank and Stryker programs and the ramp up in production on the AJAX and several international LAVnew MPF vehicle programs. Aircraft manufacturing, outfitting and completions revenue increased due to additional deliveries of the ultra-large-cabin G650 and mid-cabin G280 aircraft. These increases were offset largely by decreased ship construction revenue driven by timing on the Virginia-class submarine program and reduced Jones Act commercial ship construction volume, and decreased revenue from C4ISR products driven by funding delays caused by the extended FY 2017 CR.
While product revenue was steady in 2017, productup due primarily to increased volume on combat and seaframe control systems for U.S. Navy surface ships and computing and communications equipment. Product operating costs decreasedincreased at a higher rate than revenue due primarily to strong operating performance in our Aerospace and Information Systems and Technology groups and the impact of DDG-51 program cost growth in 2016 in our Marine Systems group.mix changes from mature programs to new production programs.
The increase in service revenue in 20172019 consisted of the following:
Ship engineering, repair and other services$243
Aircraft services118
IT services$153
Other, net45
23
Total increase$406
$176
Revenue from ship engineering, repair and other services increased due primarily to additional work related to the Columbia-class submarine development program and Virginia-class submarine design enhancements, and a higher volume of submarine repair work. AircraftIT services revenue increased drivendue to the CSRA acquisition in the second quarter of 2018, offset partially by higher demand for maintenance work and the acquisitionsale of an FBOa public-facing contact-center business in 2017.
our Information Technology segment in the fourth quarter of 2018. Service operating costs increased in 2017 at a lower rate than revenue due primarily to strong operating performance in our Information Systems and Technology group.
Review of 2016 vs. 2015
Year Ended December 312016 2015 Variance
Revenue:       
Products$19,010
 $20,477
 $(1,467) (7.2)%
Services11,551
 11,304
 247
 2.2 %
Operating Costs:       
Products$15,159
 $15,986
 $(827) (5.2)%
Services9,746
 9,563
 183
 1.9 %


The change in product revenue in 2016 consisted of the following:
Aircraft manufacturing, outfitting and completions$(1,423)
Ship construction(225)
C4ISR products206
Other, net(25)
Total decrease$(1,467)
Product revenue decreased due primarily to fewer G550 and G450 large-cabin and G280 mid-cabin aircraft deliveries, and decreased Jones Act commercial ship construction volume. Revenue from C4ISR products increased due primarily to higher volume on the WIN-T program. Product operating costs decreased at a lower rate than revenue declined in 2016 due to DDG-51 program cost growth in our Marine Systems group. Additionally, 2015 benefited from favorable cost performance on Block III of the Virginia-class submarine program in our Marine Systems group and a supplier settlement received in our Aerospace group.
The increase in service revenue in 2016 consisted of the following:
Ship engineering, repair and other services$264
Other, net(17)
Total increase$247
Service revenue increased due primarily to additional development work on the Columbia-class submarine program. Service operating costs increased in 2016 consistent with the higherchange in volume described above.
G&A EXPENSES
As a percentage of revenue, G&A expenses were 6.5% in 2017, 6.3% in 2016 and 6.1% in 2015.2019 and 6.2% in 2018. We expect G&A expenses as a percentage of revenue in 20182020 to be generally consistent with 2017.2019.


INTEREST, NET
Net interest expense was $103$460 in 2017, $912019 and $356 in 2016 and $83 in 2015.2018. The increase in 2017 was due primarily to a $500 net increase in long-term debt beginningthe impact of financing the CSRA acquisition, including the issuance of $7.5 billion of fixed- and floating-rate notes in the thirdsecond quarter of 2016. We expect 2018 net interest expense to be approximately $115. The increase from 2017 is due primarily to slightly higher interest rates on the $1 billion of fixed-rate notes issued in 2017 compared with the $900 of fixed-rate notes that matured in 2017.2018. See Note K to the Consolidated Financial Statements in Item 8 for additional information regarding our debt obligations, including interest rates. We expect 2020 net interest expense to be approximately $410, reflecting our next scheduled debt maturity of $2.5 billion in the second quarter of 2020.
OTHER, NET
Net other income was $3$14 in 2017, $132019 compared with expense of $16 in 2016 and $7 in 2015. In2018. The 2018 we expect netexpense included approximately $30 of transaction costs associated with the CSRA acquisition. Excluding these transaction costs, other expense to be approximately $60 duerepresents primarily to the adoption of ASU 2017-07, which requires the non-service cost components of pension and other post-retirement benefit cost to be reportedbenefits, which were net income items in other income (expense) in the income statement. For further discussion of the adoption of ASU 2017-07, see Note A to the Consolidated Financial Statements in Item 8.


both periods.
PROVISION FOR INCOME TAX, NET
Our effective tax rate was 28.6%17.1% in 2017, 26.7%2019 and 17.8% in 2016 and 28%2018. The decrease in 2015. Theour effective tax rate in 2017 includes a $119 unfavorable impact, or 290 basis points, resulting from the enactment of2019 is due primarily to increased R&D tax credits and favorable 2019 regulatory developments associated with implementing the Tax Cuts and Jobs Act (tax reform), which was enacted on December 22, 2017, (tax reform). The primary impact of the changeand was generally effective in tax law was the remeasurement of our U.S. federal deferred tax assets and liabilities at the tax rate expected to apply when the temporary differences are realized/settled (remeasured at a rate of 21% versus 35% for the majority of our deferred tax assets and liabilities). The decrease in the effective tax rate in 2016 was due to increased international activity, as well as excess tax benefits from equity-based compensation recognized as an income tax benefit in accordance with ASU 2016-09. We adopted ASU 2016-09 on a prospective basis beginning in 2016.2018. For further discussion, including a reconciliation of our effective tax rate from the statutory federal rate, see Note F to the Consolidated Financial Statements in Item 8.
For 2018,2020, we anticipate a full-year effective tax rate of approximately 19%17.5%. The expected decrease from 2017 is due primarily to the reduction of the U.S. corporate statutory tax rate from 35% to 21% beginning on January 1, 2018, and the net impact of other tax reform provisions, notably a lower tax rate on income earned from foreign sales of U.S.-produced goods and services. However, the 2017 tax reform eliminated certain tax benefits under the prior tax law, including the domestic production deduction. Further, our non-U.S. businesses, which previously provided a benefit to our effective tax rate, operate in jurisdictions with statutory tax rates that are now similar to the U.S., and in some cases higher. For these reasons, while we continue to expect an effective tax rate slightly below the statutory rate, the difference between the rates is expected to narrow under the new tax law.
DISCONTINUED OPERATIONS, NET OF TAX
In 2013, we settled litigation with the U.S. Navy related to the terminated A-12 aircraft contract in the company’s former tactical military aircraft business. In connection with the settlement, we released some rights to reimbursement of costs on ships under contract at our Bath, Maine, shipyard. As we progressed through the shipbuilding process, we determined that the cost associated with this settlement was greater than anticipated. Therefore, in 2016, we recognized an $84 loss, net of tax, to adjust the previously-recognized settlement value. In addition, we recognized a $10 loss, net of tax, in 2016 related to an environmental matter associated with a former operation of the company.
In 2015, we completed the sale of our axle business in the Combat Systems group. In 2016, we recognized a final adjustment of $13 to the loss on the sale of this business.



BACKLOG AND ESTIMATED POTENTIAL CONTRACT VALUE
chart-2d19c84f9bc7517a925.jpg
Our total backlog, including funded and unfunded portions, was $63.2$86.9 billion on December 31, 2019, up 28.1% from $67.9 billion at the end of 2017, up 1.6% from $62.2 billion at the end of 2016.2018. Our total backlog is equal to our remaining performance obligations under contracts that meet the criteria in ASC Topic 606with customers as discussed in Note BC to the Consolidated Financial Statements in Item 8. Our total estimated contract value, which combines total backlog with estimated potential contract value, was $88$126.2 billion on December 31, 2017.2019, up 22.1% from $103.4 billion at the end of 2018.



AEROSPACE
chart-15fbe110dc0553f484f.jpg
Aerospace funded backlog represents new aircraft and custom completion orders for which we have definitive purchase contracts and deposits from customers. Unfunded backlog consists of agreements to provide future aircraft maintenance and support services. The groupAerospace segment ended 20172019 with backlog of $12.5$13.3 billion compared with $13.2$11.4 billion at year-end 2016.


2018.
Orders in 20172019 reflected solidstrong demand across our product and services portfolio with especiallyportfolio. We received orders for all models of Gulfstream aircraft, including additional orders for the G500, G600 and G650 aircraft and strong ordersorder activity for the new G700 aircraft, which is scheduled to enter service in the fourth quarter of 2017.2022. The segment’s book-to-bill ratio (orders divided by revenue) was one-to-one for Gulfstream aircraft1.23-to-1 in 2017. We received orders for all models of in-production Gulfstream aircraft, as well as additional orders for the G500 and G600 aircraft.2019.
Beyond total backlog, estimated potential contract value in the Aerospace group was $2 billion on December 31, 2017, down slightly from $2.1 billion at year-end 2016. Estimated potential contract value represents primarily options and other agreements with existing customers to purchase new aircraft and long-term aircraft services agreements. On December 31, 2019, estimated potential contract value in the Aerospace segment was $3 billion compared with $3.1 billion at year-end 2018.
Demand for Gulfstream aircraft remains strong across customer types and geographic regions, generating orders from public and privately held companies, individuals, and governments around the world. Geographically, U.S. customers represented 55%more than 50% of the group’ssegment’s orders in 20172019 and approximately 45% of the group’ssegment’s backlog on December 31, 2017,2019, demonstrating continued strong domestic demand.


DEFENSE GROUPSSEGMENTS
TheOur total backlogestimated contract value in our three defense groupssegments is comprised of the following components:
Total backlog represents the estimated remaining sales value of work to be performed under firm contracts. The funded portion of this backlog includes items that have been authorized and appropriated by the U.S. Congress and funded by customers, as well as commitments by international customers that are approved and funded similarly by their governments. We have included in total backlog firm contracts at the amounts that we believe are likely to receive funding, but there is no guarantee that future budgets and appropriations will provide the same funding level currently anticipated for a given program.
The funded portion of total backlog includes items that have been authorized and appropriated by the U.S. Congress and funded by customers, as well as commitments by international customers that are approved and funded similarly by their governments.


The unfunded portion of total backlog includes the amounts that we believe are likely to be funded, but there is no guarantee that future budgets and appropriations will provide the same funding level currently anticipated for a given program.
Estimated potential contract value in our defense groups includes unexercised options associated with existing firm contracts and unfunded work awarded on unfunded indefinite delivery, indefinite quantity (IDIQ) contracts. Contract options in our defense business represent agreements to perform additional work under existing contracts at the election of the customer. We recognize options in backlog when the customer exercises the option and establishes a firm order. For IDIQ contracts, we evaluate the amount of funding we expect to receive and include this amount in our estimated potential contract value. This amount is often less than the total IDIQ contract value, particularly when the contract has multiple awardees. The actual amount of funding received in the future may be higher or lower than our estimate of potential contract value.
Total backlog in our defense groupssegments was $50.7$73.6 billion on December 31, 2017,2019, up 3.5%30.3% from $49$56.5 billion at the end of 2016,2018 driven by a $5.1 billion contract awarded bythe award of Block V of the Virginia-class submarine program from the U.S. Navy to completefor the design and prototype developmentconstruction of the Columbia-class submarine.nine submarines. Estimated potential contract value in our defense segments was $22.8$36.3 billion on December 31, 2017, compared with $22.92019, up 12% from $32.4 billion at year-end 2016.


2018.
COMBAT SYSTEMS
chart-286643a6c7cf5952911.jpg
The Combat Systems group’ssegment’s total backlog was $17.6$14.9 billion at the end of 2017, down slightly from $17.82019, compared with $16.6 billion at year-end 2016.2018 as the segment continued to perform on many long-term contracts awarded in prior years. The group’ssegment’s backlog includes the amount of work remaining on two significant multi-year contracts awarded in 2014:
$5.93.5 billion to provide wheeled armored vehicles and logistics support to a Middle Easternan international customer through 2024.
$4.12.6 billion from the U.K.U.K Ministry of Defence to produce AJAX armouredarmored fighting vehicles scheduled for delivery to the British Army through 2024 and related in-service support.


The group alsosegment has a variety of additional international military vehicle production contractsprograms in backlog, notably:
$5401.3 billion from the Canadian government to produce armored combat support vehicles (ACSVs) and provide associated support services.
$525 to produce Piranha armored vehicles for several non-U.S. customers, including $215 to produce more than 300 armored personnel carriers for the Danish Defense Acquisition and Logistics Organization.
$310 for LAVs for several non-U.S. customers, including $350$155 for the upgrade and modernization of LAV III combat vehicles for the Canadian Army.
$430 to produce over 300 armored personnel carriers for the Danish Defence Acquisition and Logistics Organization.
$355195 to upgrade Duro tactical vehicles for the Swiss governmentgovernment.
One of the U.S. Army’s top priorities is readiness of its platform products through 2022.
$190 to produce Piranha 3+ vehiclescritical modernization efforts, including upgrades for both the Abrams main battle tank and Stryker wheeled combat-vehicle programs. These initiatives generated significant order activity for the segment in five variants and provide associated program support for an international customer.2019.
The groupsegment received $1.9 billion$875 of orders for Abrams main battle tank modernization, upgrade and upgradesustainment programs for the U.S. Army and U.S. alliespartners in 2017,2019, ending the year with backlog of $2.1$2.3 billion. For the Army, backlog included $620$1.4 billion to produce M1A2 SEPv3 tanks, deliver M1A2 SEP components, and provide associated program support, and $365$260 to design and develop SEPv4 prototypes with upgraded sensors. For U.S. allies, backlogBacklog included $825$475 to modernize Abrams main battle tanks for Kuwait and Saudi Arabia.U.S. partners. An additional $870$250 for Abrams tank programs is included in our estimated potential contract value at year-end.year end.
The U.S. Army’s Stryker wheeled combat-vehicle program represented $510$525 of the group’ssegment’s backlog on December 31, 2017,2019, with vehicles scheduled for delivery through 2019.2021. The groupsegment received $500$400 of Stryker orders in 2017,2019, including awards to produce double-V-hull vehicles, upgrade vehicles with an integrated 30-millimeter cannonshort-range air defense capabilities and provide support and engineering services.


The backlog at year end also included $185 to develop and deliver 12 prototype vehicles for the Mobile Protected Firepower (MPF) program, which will increase the firepower for the Army’s Infantry Brigade Combat Teams (IBCTs).
The Combat Systems group’ssegment’s backlog on December 31, 2017,2019, also included $2.6$2.7 billion for multiple weapons systems and munitions programs, including $360$210 to produce Hydra-70 rockets for the Army.
The group’ssegment’s estimated potential contract value was $3.2$4.3 billion on December 31, 2017, compared with $4.72019, up slightly from $4.2 billion at year-end 2016. Estimated potential contract value decreased in 2017 due to a customer-directed restructuring of a combat-vehicle contract in the Middle East.2018.


INFORMATION SYSTEMS AND TECHNOLOGY
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Unlike our other defense businesses, theThe Information Systems and Technology group’ssegment’s backlog consists of thousands of contracts and task orders, and approximately 15-20% of its portfolio is reconstitutedrecompeted each year with new programs and task order awards.year. The group’ssegment’s total backlog was $8.9$9.1 billion at the end of 2017,2019, up 4.8%14.7% from $8.5$8 billion at year-end 2016.2018. This amount does not include $14.9$19 billion of estimated potential contract value associated with its anticipated share of IDIQ contracts and unexercised options on December 31, 2017.2019, an increase of 11.4% from year-end 2018. Funding offrom IDIQ contracts and exercised options added $4.6$5.7 billion to the group’ssegment’s backlog in 2017, over 50%2019, approximately 60% of the group’ssegment’s orders.
In 2017,2019, the groupsegment achieved a book-to-bill ratio of one-to-one1-to-1 or higher for the fourthfifth consecutive year driven by several significant contract awards during the year, including the following:
$5901 billion from the CentersU.S. Department of State to provide global security engineering and supply chain management services. The program has a maximum potential contract value of over $2 billion.
$330 to provide operations and maintenance support services for Medicare & Medicaid Servicesa Department of Homeland Security (DHS) data center.
$230 from the National Geospatial-Intelligence Agency (NGA) for contactnetwork storage and data center services.
$215 from the U.S. Department of State to provide business process support services for the Bureau of Consular Affairs’ Global Support Strategy (GSS) program for visa services.
$170 from the U.S. Air Force for the Battlefield Information Collection and cloud hostingExploitation System (BICES) program to provide information sharing support with $275 remaining into coalition operations.
The segment’s backlog at year-end 2017.2019 also included the following key programs:
$415 from1.1 billion to support the U.K. Ministryoperations and enhancement of Defenceseveral state health insurance programs, along with an additional $420 of estimated potential contract value. The segment received $885 of orders for these programs during the year.


$830 to design and develop the next-generation tactical communication and information system in the initial phaseprovide classified IT infrastructure services to an agency of the U.K.’s Morpheus program.Department of Defense (DoD) with an additional $1.1 billion of estimated potential contract value remaining.
$310130 to provide turnkey training and simulation services for the U.S. Army’s Aviation Center of Excellence in Fort Rucker, Alabama. An additional $370 of estimated potential contract value remains under the contract.
MISSION SYSTEMS
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The Mission Systems segment’s backlog consists of thousands of contracts and task orders. The segment’s total backlog was $5.4 billion at the end of 2019, up slightly from $5.3 billion at year-end 2018. This amount does not include $7.5 billion of estimated potential contract value associated with its anticipated share of IDIQ contracts and unexercised options on December 31, 2019. Funding of IDIQ contracts and exercised options added $2.3 billion to the segment’s backlog in 2019, over 45% of the segment’s orders.
In 2019, the segment achieved a book-to-bill ratio of 1-to-1 or higher for the fifth consecutive year driven by several significant contract awards during the year, including the following:
$530 from the U.S. Army for computing and communications equipment under the CHS-4CHS-5 program. $340$1.7 billion of estimated potential contract value remains under this IDIQ contract.
$185 from the Army for its mobile communications network.
$150 for design and logistics services to sustain the United Kingdom’s legacy Bowman tactical communication and information system.
The group’ssegment’s backlog at year-end 20172019 also included the following key programs:
$815735 for the Canadian Maritime Helicopter Project (MHP) to provide integrated mission systems, training and support for Canadian marine helicopters.


$445 of support and modernization work for the intelligence community, the DoD and the Department of Homeland Security, including the New Campus East, U.S. Naval Air Warfare Center, Enterprise Transport and St. Elizabeths campus infrastructure programs.
$415495 for combat and seaframe control systems for the U.S. NavyNavy’s Independence-variant Littoral Combat Ships (LCS).LCSs.
$320 for the WIN-T mobile communications network program. The group received $305 of orders in 2017 for additional Increment 2 equipment.
$300250 to provide supply chain management services to the U.S. Department of State.
$260 to provide fire controlfire-control system modifications for ballistic-missile (SSBN) submarines.
$200 for long-term support155 to design and capability upgrades fordevelop the U.K.’s Bowmannext-generation tactical communication system.and information system in the initial phase of the United Kingdom’s Morpheus program.


MARINE SYSTEMS
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The Marine Systems group’ssegment’s backlog consists of very long-term submarine and surface ship construction programs, as well as numerous engineering and repair contracts. The group’ssegment’s book-to-bill ratio exceeded one-to-onewas 2.9-to-1 in 2017,2019, resulting in backlog growth of 6.6%66.1% from $22.7$26.6 billion at year-end 20162018 to $24.2$44.2 billion at the end of 2017.2019. Estimated potential contract value was $5.5 billion on December 31, 2019, up 47.3% from $3.7 billion at year-end 2018. The increases in backlog and estimated potential contract value are due primarily to the award of Block V of the Virginia-class submarine program.
The Virginia-class submarine program was the company’s largest defense program in 20172019 and the largest contractprogram in the company’s backlog. Backlog for the Virginia-class submarine program increased $18.1 billion from year-end 2018 driven by a $22.2 billion contract from the Navy in the fourth quarter of 2019 for the construction of nine submarines in Block V of the program and spare materials. The group’scontract includes $3.2 billion of previously-awarded orders for advance materials, resulting in a net increase to backlog at year-end 2017of $19 billion. The contract includes an option for a tenth submarine that if exercised would bring the total contract value to $24.1 billion.
For the Columbia-class ballistic-missile submarine, we are the designer and builder. The Navy considers this its top-priority program. Backlog on December 31, 2019, included $11.2$5 billion for 13 Virginia-class submarines scheduled for delivery through 2023.
Navy destroyer programs represented $4 billiondesign and prototype development, advance construction, and long-lead materials procurement. Construction of the group’s backlog at year-end 2017. We have construction contracts for seven DDG-51 destroyerslead boat is scheduled for delivery through 2024. Backlog at year-end 2017 also included two ships underto begin in the DDG-1000 program scheduled for delivery in 2018 and 2020, respectively.fourth quarter of 2020.
The Marine Systems group’ssegment’s backlog on December 31, 2017,2019, included $245 for construction of ESB auxiliary support ships. The groupsegment has delivered threefive ships in the program, and construction is underway on the fourth and fifth ships, scheduledsixth ship. In 2019, the segment received a $1.1 billion award from the Navy for delivery in early 2018 and 2019, respectively.


In 2016, we were awarded athe design and construction contractof the sixth and seventh ships and an option totaling approximately $550 for an additional ship.


On December 31, 2019, the lead ship in the Navy’s new class of fleet oilers, the John Lewis class (TAO-205), along with options for five additional ships. At year-end 2017,Marine Systems segment’s backlog included $670 for the program, and estimated potential contract value included $2.2 billion for the options.following major ship construction programs:
The year-end backlog also included two liquefied natural gas (LNG)-capable Jones Act ships for a commercial customer scheduled for delivery through 2020.
ProgramBacklog (in Billions) Number of Ships Delivery Date of Final Ship in Backlog
Virginia-class submarine$26.9
 19 2029
DDG-51 destroyer7.0
 11 2026
T-AO-205 fleet replenishment oiler1.4
 5 2024
ESB auxiliary support ship1.0
 2 2023
Complementing these ship construction programs, engineering services represented approximately $6.5 billion of the Marine Systems group’s backlog on December 31, 2017. Design and development efforts on the Columbia-class submarine program represented $5.3 billion of this amount, driven by $5.1 billion awarded in 2017 to complete the design and prototype development of the Columbia-class submarine. An additional $1.2 billion is included in our estimated potential contract value at year end, representing materials to be provisioned on the contract.
Year-end backlog for ship and submarine maintenance, repair and other services totaled $1.1represented approximately $1.5 billion of the Marine Systems segment’s backlog on December 31, 2019, including $780$1.2 billion for surface-ship repair operations.


FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES
We place a strong emphasis on cash flow generation. This focus gives us the flexibility for capital deployment while preserving a strong balance sheet to position us for future opportunities. Cash generated by operating activities over the past three yearsin 2019 and 2018 was deployed to pay dividends, fund capital expenditures and business acquisitions, and repurchase our common stock.
Year Ended December 312017 2016 20152019 2018
Net cash provided by operating activities$3,879
 $2,198
 $2,607
$2,981
 $3,148
Net cash (used) provided by investing activities(791) (426) 200
Net cash used by financing activities(2,399) (2,169) (4,367)
Net cash used by investing activities(994) (10,234)
Net cash (used) provided by financing activities(1,997) 5,086
Net cash used by discontinued operations(40) (54) (43)(51) (20)
Net increase (decrease) in cash and equivalents649
 (451) (1,603)
Net decrease in cash and equivalents(61) (2,020)
Cash and equivalents at beginning of year2,334
 2,785
 4,388
963
 2,983
Cash and equivalents at end of year2,983
 2,334
 2,785
902
 963
Short- and long-term debt(3,982) (3,888) (3,399)(11,930) (12,417)
Net debt$(999) $(1,554) $(614)$(11,028) $(11,454)
Debt-to-equity (a)34.8% 37.7% 32.6%87.9% 105.8%
Debt-to-capital (b)25.8% 27.4% 24.6%46.8% 51.4%
(a)Debt-to-equity ratio is calculated as total debt divided by total equity as of year end.
(b)Debt-to-capital ratio is calculated as total debt divided by the sum of total debt plus total equity as of year end.
We expect to continue to generate funds in excess of our short- and long-term liquidity needs. We believe we have adequate funds on hand and sufficient borrowing capacity to execute our financial and operating strategy. The following is a discussion of our major operating, investing and financing activities for each of the past three years,in 2019 and 2018, as classified on the Consolidated Statement of Cash Flows in Item 8.





OPERATING ACTIVITIES
We generated cash from operating activities of $3.9$3 billion in 2017, 2019and$2.23.1 billion in 2016and$2.6 billion in 2015. 2018. The primary driver of cash flowsinflows in both years was net earnings. CashHowever, cash flows in 2016 and 2015both years were affected negatively by growth in operating working capital (OWC), particularly the timing of payments on a large international wheeled armored vehicle contract in our Combat Systems group duesegment. For additional information about the growth in our unbilled receivables balance, see Note H to the utilization of deposits and the timing of billings on a large contract for a Middle Eastern customer, andConsolidated Financial Statements in Item 8. Cash flows in 2019 were also affected negatively by net OWC growth in our Aerospace group fromsegment driven by our position in the build-updevelopment, production and cash collection cycles of inventory related to the new G500 and G600our Gulfstream aircraft programs and the liquidationmodels. Additionally, cash flows in 2018 reflected a discretionary pension plan contribution of customer deposits associated with aircraft deliveries. In 2017, the growth in operating working capital due to these factors slowed and was offset by lower income tax payments.$255.


INVESTING ACTIVITIES
Cash used for investing activities was $791$994 in 2017 compared with cash used for investing activities of $4262019 and $10.2 billion in 2016 and cash provided by investing activities of $200 in 2015.2018. Our investing activities include cash paid for capital expenditures and business acquisitions; proceeds from asset sales; and purchases, sales and maturities of marketable securities; and proceeds from asset sales.securities.
Capital Expenditures. The primary use of cash for investing activities in all three years2019 was capital expenditures. Capital expenditures were $428$987 in 2017, 2019 and$392690 in 2016 and $569 in 2015.2018. The increase reflects ongoing investments to support growth at our shipyards. We expect capital expenditures of around 2%to be approximately 2.5% of revenue in 2018.2020.
Business Acquisitions.In 2017,2019, we acquired fourthree businesses for an aggregate of $399.approximately $20. In 2016,2018, we acquired twosix businesses for an aggregate of $58. We did not acquire any businesses in 2015.$10.1 billion, including $9.7 billion for CSRA.
Marketable Securities. In 2015, we received $500 of proceeds from maturing held-to-maturity securities purchased in 2014. Other net purchases, sales and maturities of marketable securities in all three years were not material.
Other, Net. Investing activities also include proceeds from asset sales. In 2015,2019, we completed the sale of our axle business in the Combat Systems group and a commercial cyber security business in our Information SystemsTechnology segment that was classified as held for sale on the Consolidated Balance Sheet on December 31, 2018. In 2018, we completed the sale of three businesses in our Information Technology segment: a commercial health products business, CSRA operations that we were required by a government customer to dispose of to address an organizational conflict of interest with respect to services provided to the customer, and Technology group.a public-facing contact-center business.


FINANCING ACTIVITIES
Cash used forby financing activities was $2.4$2 billion in 2017, $2.22019 compared with cash provided by financing activities of $5.1 billion in 2016 and $4.4 billion in 2015.2018. Our financing activities include payment of dividends, repurchases of common stock, payment of dividends and debt and commercial paper repayments. Net cash from financing activities also includes proceeds received from debt and commercial paper issuances and employee stock optionoptions exercises.
Dividends. On March 6, 2019, our board of directors declared an increased quarterly dividend of $1.02 per share, the 22nd consecutive annual increase. Previously, the board had increased the quarterly dividend to $0.93 per share in March 2018. Cash dividends paid were $1.2 billion in 2019 and $1.1 billion in 2018.
Share Repurchases. Our board of directors from time to time authorizes management’s repurchase of outstanding shares of our common stock on the open market from time to time.market. We repurchased 7.81.1 million of our outstanding shares for $1.5 billion$184 in 2017, 14.22019 and 10.1 million shares for $2$1.8 billion in 2016 and 22.8 million shares for $3.2 billion in 2015. As a result, we have reduced our shares outstanding by approximately 11% since the end of 2014.2018. On December 31, 2017, 7.62019, 6.4 million shares remained authorized by our board of directors for repurchase, approximately 3% 2% of our total shares outstanding.
Dividends. On March 1, 2017, our board of directors declared an increased quarterly dividend of $0.84 per share, the 20th consecutive annual increase. Previously, the board had increased the quarterly dividend to $0.76 per share in March 2016 and $0.69 per share in March 2015. Cash dividends paid were $986 in 2017, $911 in 2016 and $873 in 2015.



Debt and Commercial Paper Issuances and Repayments. We issued $1 billion of fixed-rate notes in the third quarter of 2017, and we used the proceeds to repay $900 of fixed-rate notes that matured in the fourth quarter of 2017 and for general corporate purposes. In 2016,2019, we repaid $500$850 of fixed-rate notes on their maturity date with cash on hand and issued $1 billion of fixed-rate notes for general corporate purposes. In 2015, we repaid $500 of fixed-rate notes on their scheduled maturity date with the proceeds from maturing marketable securities.
We have no additional material repayments of long-term debt scheduled until 2021. See Note K to the Consolidated Financial Statementscommercial paper, resulting in Item 8 for additional information regarding our debt obligations, including scheduled debt maturities and interest rates.
On December 31, 2017, we had no commercial paper outstanding on December 31, 2019, but we maintain the ability to access the commercial paper market in the future. In 2018, we issued $7.5 billion of fixed- and floating-rate notes to finance the acquisition of CSRA. Additionally, in 2018, we paid $450 to satisfy obligations under CSRA’s accounts receivable purchase agreement.
Fixed- and floating-rate notes totaling $2.5 billion mature in May 2020. We currently plan to repay these notes using a combination of cash on hand and the issuance of commercial paper. For additional information regarding our debt obligations, including scheduled debt maturities and interest rates, and our credit facilities, see Note K to the Consolidated Financial Statements in Item 8.
We have $2$5 billion in committed bank credit facilities for general corporate purposes and working capital needs.needs and to support our commercial paper issuances. These credit facilities include a $1$2 billion multi-year364-day facility expiring in July 2018 andMarch 2020, a $1 billion multi-year facility expiring in November 2020.2020 and a $2 billion multi-year facility expiring in March 2023. We may renew or replace these credit facilities in whole or in part at or prior to their expiration dates. Our credit facilities are guaranteed by several of our 100%-owned subsidiaries. We also have an effective shelf registration on file with the Securities and Exchange Commission that allows us to access the debt markets.


NON-GAAP FINANCIAL MEASURES
We emphasize the efficient conversion of net earnings into cash and the deployment of that cash to maximize shareholder returns. As described below, we use free cash flow from operations and ROICreturn on invested capital (ROIC) to measure our performance in these areas. While we believe these metrics provide useful information, they are not defined operating measures under U.S. generally accepted accounting principles (GAAP), and there are limitations associated with their use. Our calculation of these metrics may not be completely comparable to similarly titled measures of other companies due to potential differences in the method of calculation. As a result, the use of these metrics should not be considered in isolation from, or as a substitute for, other GAAP measures.
Free Cash Flow. We define free cash flow from operations as net cash provided by operating activities less capital expenditures. We believe free cash flow from operations is a useful measure for investors because it portrays our ability to generate cash from our businesses for purposes such as repaying maturing debt, funding business acquisitions, repurchasing our common stock and paying dividends. We use free cash flow from operations to assess the quality of our earnings and as a key performance measure in evaluating management. The following table reconciles the free cash flow from operations with net cash provided by operating activities, as classified on the Consolidated Statement of Cash Flows:Flows in Item 8:
Year Ended December 312017 2016 2015 2014* 2013*2019 2018 2017 2016 2015
Net cash provided by operating activities$3,879
 $2,198
 $2,607
 $3,828
 $3,159
$2,981
 $3,148
 $3,876
 $2,163
 $2,607
Capital expenditures(428) (392) (569) (521) (436)(987) (690) (428) (392) (569)
Free cash flow from operations$3,451
 $1,806
 $2,038
 $3,307
 $2,723
$1,994
 $2,458
 $3,448
 $1,771
 $2,038
Cash flows as a percentage of earnings
from continuing operations:
                  
Net cash provided by operating activities133% 82% 86% 143% 127%86% 94% 133% 81% 86%
Free cash flow from operations119% 67% 67% 124% 110%57% 73% 118% 66% 67%
* Prior-period information for 2014 and 2013 has not been restated for ASC Topic 606 and is, therefore, not comparable to the 2017, 2016 and 2015 information.



Return on Invested Capital. We believe ROIC is a useful measure for investors because it reflects our ability to generate returns from the capital we have deployed in our operations. We use ROIC to evaluate investment decisions and as a performance measure in evaluating management. We define ROIC as net operating profit after taxes divided by average invested capital. Net operating profit after taxes is defined as earnings from continuing operations plus after-tax interest and amortization expense.expense, calculated using the statutory federal income tax rate. Average invested capital is defined as the sum of the average debt and shareholders’ equity excluding accumulated other comprehensive loss. ROIC excludes goodwill impairments and non-economic accounting changes as they are not reflective of company performance.
ROIC is calculated as follows:
Year Ended December 312017 2016 2015 2014* 2013*2019 2018 2017 2016 2015
Earnings from continuing operations$2,912
 $2,679
 $3,036
 $2,673
 $2,486
$3,484
 $3,358
 $2,912
 $2,679
 $3,036
After-tax interest expense76
 64
 64
 67
 67
373
 295
 76
 64
 64
After-tax amortization expense51
 57
 75
 79
 93
287
 258
 51
 57
 75
Net operating profit after taxes$3,039
 $2,800
 $3,175
 $2,819
 $2,646
$4,144
 $3,911
 $3,039
 $2,800
 $3,175
Average invested capital$18,099
 $17,168
 $17,579
 $18,673
 $18,741
$29,620
 $25,367
 $18,099
 $17,168
 $17,579
Return on invested capital16.8% 16.3% 18.1% 15.1% 14.1%14.0% 15.4% 16.8% 16.3% 18.1%
* Prior-period information for 2014 and 2013 has not been restated for ASC Topic 606 and is, therefore, not comparable to the 2017, 2016 and 2015 information.


ADDITIONAL FINANCIAL INFORMATION
OFF-BALANCE SHEET ARRANGEMENTS
On December 31, 2017, other than operating leases,2019, we had no material off-balance sheet arrangements.


CONTRACTUAL OBLIGATIONS AND COMMERCIAL COMMITMENTS
The following tables present information about our contractual obligations and commercial commitments on December 31, 2017:2019:
  Payments Due by Period  Payments Due by Period
Contractual ObligationsTotal Amount Committed Less Than 1 Year 1-3 Years 4-5 Years More Than 5 YearsTotal Amount Committed Less Than 1 Year 1-3 Years 4-5 Years More Than 5 Years
Long-term debt (a)$5,029
 $112
 $215
 $1,696
 $3,006
Capital lease obligations27
 2
 4
 4
 17
Debt (a)$13,504
 $3,229
 $4,424
 $2,017
 $3,834
Operating leases1,359
 258
 363
 212
 526
1,864
 302
 473
 299
 790
Finance leases443
 91
 166
 55
 131
Purchase obligations (b)25,168
 13,806
 8,594
 1,983
 785
43,187
 19,598
 16,610
 5,183
 1,796
Other long-term liabilities (c)21,428
 4,632
 2,677
 1,864
 12,255
26,019
 5,167
 3,053
 2,608
 15,191
$53,011
 $18,810
 $11,853
 $5,759
 $16,589
$85,017
 $28,387
 $24,726
 $10,162
 $21,742
(a)Includes scheduled interest payments. See Note K to the Consolidated Financial Statements in Item 8 for a discussion of long-term debt.
(b)Includes amounts committed under legally enforceable agreements for goods and services with defined terms as to quantity, price and timing of delivery. This amount includes $17.1$34.8 billion of purchase obligations for products and services to be delivered under firm government contracts under which we would expect full recourse under normal contract termination clauses.
(c)Represents other long-term liabilities on our Consolidated Balance Sheet, including the current portion of these liabilities. The projected timing of cash flows associated with these obligations is based on management’s estimates, which are based largely on historical experience. This amount also includes all liabilities under our defined-benefit retirement plans. See Note QR to the Consolidated Financial Statements in Item 8 for information regarding these liabilities and the plan assets available to satisfy them.



  Amount of Commitment Expiration by Period  Amount of Commitment Expiration by Period
Commercial CommitmentsTotal Amount Committed Less Than 1 Year 1-3 Years 4-5 Years More Than 5 YearsTotal Amount Committed Less Than 1 Year 1-3 Years 4-5 Years More Than 5 Years
Letters of credit and guarantees*$1,200
 $585
 $309
 $171
 $135
$1,463
 $861
 $249
 $324
 $29
Aircraft trade-in options*161
 128
 33
 
 
380
 65
 148
 167
 
$1,361
 $713
 $342
 $171
 $135
$1,843
 $926
 $397
 $491
 $29
* See Note O to the Consolidated Financial Statements in Item 8 for a discussion of letters of credit and aircraft trade-in options.


APPLICATION OF CRITICAL ACCOUNTING POLICIES
Management’s Discussion and Analysis of Financial Condition and Results of Operations is based on our Consolidated Financial Statements, which have been prepared in accordance with GAAP. The preparation of financial statements in accordance with GAAP requires that we make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period.period. On an ongoing basis, we evaluate our estimates including most pervasively those related to various assumptions and projections for our long-term contracts and programs. Other significant estimates include those related to goodwill and intangible assets, income taxes, pension and other post-retirement benefits, workers’ compensation, warranty obligations and litigation and other contingencies. We employ judgment in making our estimates, but they are based on historical experience, currently available information and various other assumptions that we believe areto be reasonable under the circumstances. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily available from other sources. Actual results couldmay differ from these estimates. We believe our judgment is applied consistently and produces financial information that fairly depicts the results of operations for all periods presented.
In our opinion, the following policies are critical and require the use of significant judgment in their application:
Revenue. The majority of our revenueA performance obligation is derived from long-term contractsa promise in a contract to transfer a distinct good or service to the customer, and programs that can span several years. We account for revenue in accordance with ASC Topic 606. Theis the unit of account in ASC Topic 606 is a performance obligation. for revenue.A contract’s transaction price is allocated to each distinct performance obligation within that contract and recognized as revenue when, or as, the performance obligation is satisfied.Our performance obligations are satisfied over time as work progresses or at a point in time.
Substantially all of our revenue in the defense groupssegments is recognized over time, because control is transferred continuously to our customers.Typically, revenue is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material, overhead and, when appropriate, G&A expenses.
The majority of our revenue recognized at a point in time is for the manufacture of business-jet aircraft in our Aerospace group. segment.Revenue on these contracts is recognizedwhen the customer obtains control of the asset, which is generally upon delivery and acceptance by the customer of the fully outfitted aircraft.
The majority of our revenue is derived from long-term contracts and programs that can span several years. Accounting for long-term contracts and programs involves the use of various techniques to estimate total contract revenue and costs. For long-term contracts, we estimate the profit on a contract as the difference



between the total estimated revenue and expected costs to complete a contract and recognize that profit over the life of the contract.
Contract estimates are based on various assumptions to project the outcome of future events that often span several years.These assumptions include labor productivity and availability; the complexity of the work to be performed; the cost and availability of materials; the performance of subcontractors; and the availability and timing of funding from the customer.
The nature of our contracts gives rise to several types of variable consideration, including claims and award and incentive fees. We include in our contract estimates additional revenue for submitted contract modifications or claims against the customer when we believe we have an enforceable right to the modification or claim, the amount can be estimated reliably and its realization is probable. In evaluating these criteria, we consider the contractual/legal basis for the claim, the cause of any additional costs incurred, the reasonableness of those costs and the objective evidence available to support the claim. We include award or incentive fees in the estimated transaction price when there is a basis to reasonably estimate the amount of the fee. These estimates are based on historical award experience, anticipated performance and our best judgment at the time. Because of our certainty in estimating these amounts, they are included in the transaction price of our contracts and the associated remaining performance obligations.
As a significant change in one or more of these estimates could affect the profitability of our contracts, we review and update our contract-related estimates regularly.We recognize adjustments in estimated profit on contracts under the cumulative catch-up method.Under this method, the impact of the adjustment on profit recorded to date on a contract is recognized in the period the adjustment is identified.Revenue and profit in future periods of contract performance are recognized using the adjusted estimate.The aggregate impact of adjustments in contract estimates increased our operating earnings (and diluted earnings per share) by $323 ($0.69) in 2017, $16 ($0.03) in 2016 and $271 ($0.54)0.74) in 2015. While no2019 and $345 ($0.91) in 2018. No adjustment on any one contract was material to our Consolidated Financial Statements in 2017, 2016 2019 or 2015, the amount in 2016 was negatively impacted by a loss on the design and development phase of the AJAX program in our Combat Systems group and cost growth associated with the restart of the Navy’s DDG-51 program in our Marine Systems group.2018.
Consistent with industry practice, we classify assets and liabilities related to long-term contracts as current, even though some of these amounts may not be realized within one year.The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet.These assets and liabilities are reported on the Consolidated Balance Sheet on a contract-by-contract basis at the end of each reporting period.
Long-lived Assets and Goodwill. We review long-lived assets, including intangible assets subject to amortization, for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. We assess the recoverability of the carrying value of assets held for use based on a review of undiscounted projected cash flows. Impairment losses, where identified, are measured as the excess of the carrying value of the long-lived asset over its estimated fair value as determined by discounted projected cash flows.
Goodwill represents the purchase price paid in excess of the fair value of net tangible and intangible assets acquired.acquired in a business combination. We review goodwill for impairment annually at each of our reporting units or when circumstances indicate that the likelihood of an impairment is more likelygreater than not. 50%.Such circumstances include a significant adverse change in the business climate for one of our reporting units or a decision to dispose of a reporting unit or a significant portion of a reporting unit. The testOur reporting units are consistent with our operating segments in Note S to the Consolidated Financial Statements in Item 8. We use both qualitative and quantitative approaches when testing goodwill for goodwill impairment is a two-step process that requires a significant levelimpairment. When determining the approach to be used, we consider the current facts and circumstances of each reporting



estimationunit as well as the excess of each reporting unit’s estimated fair value over its carrying value based on our most recent quantitative assessments. Our qualitative approach evaluates the business environment and use of judgment by management, particularlyvarious events impacting the estimate ofreporting unit including, but not limited to, macroeconomic conditions, changes in the business environment and reporting unit-specific events. If, based on the qualitative assessment, we determine that it is more likely than not that the fair value of oura reporting units. We estimate theunit is greater than its carrying value, then a quantitative assessment is not necessary. However, if a quantitative assessment is determined to be necessary, we use a two-step process to first identify potential goodwill impairment for a reporting unit by comparing its fair value to its carrying value and then, if necessary, measure the amount of our reporting unitsthe impairment loss.
Our estimate of fair value is based primarily on the discounted projected cash flows of the underlying operations. Thisoperations and requires the use of judgment by management. The process requires numerous assumptions, including the timing of work embedded in our backlog, our performance and profitability under our contracts, our success in securing future business, the appropriate risk-adjusted interest rate used to discount the projected cash flows, and terminal value growth and earnings rates applied to the final year of projected cash flows. Due to the variables inherent in our estimates of fair value, differences in assumptions may have a material effect on the result of our impairment analysis. To assess the reasonableness of our discounted projected cash flows, we compare the sum of our reporting units’ fair value to our market capitalization and calculate an implied control premium (the excess of the market capitalization over the sum of the reporting units’ fair values). Additionally, we evaluate the reasonableness of each reporting unit’s fair value by comparing the fair value to comparable peer companies and recent comparable market transactions.
WeAs of December 31, 2019, we completed qualitative assessments for our Aerospace, Combat Systems, Mission Systems and Marine Systems reporting units as the required annual goodwill impairment testestimated fair values of each of these reporting units significantly exceeded the respective carrying values based on our most recent quantitative assessments, which were performed as of December 31, 2017. The first step2018. Our qualitative assessments did not present indicators of the goodwill impairment test compares the fair value of each of ourfor these reporting units to its carrying value. Ouras of December 31, 2019.
As of December 31, 2019, we completed a quantitative assessment for our Information Technology reporting units are consistent with our business groups.unit, and the results indicated that no impairment existed. The Information Technology reporting unit’s estimated fair value exceeded its carrying value by approximately 25%, reflecting the size of eachthe CSRA acquisition relative to the Information Technology reporting unit and its recent acquisition date. Given that the net book value of ourthis business was recorded at its fair value at the acquisition date in 2018, the reporting units was well in excess ofunit’s carrying value, by default, continues to closely approximate its respective carryingfair value as of December 31, 2017.2019. As the carrying value and fair value of the Information Technology reporting unit are closely aligned, a material change in the fair value or carrying value could put the reporting unit at risk of goodwill impairment. For example, if the synergies from the acquisition or funding in the U.S. government budget for our contracts fall significantly below our projections, the fair value of the reporting unit would be negatively impacted. Similarly, an increase in interest rates would lower our discounted cash flows and negatively impact the fair value of the reporting unit. We believe the projections and assumptions we used in estimating fair value are reasonable, but it is possible actual experience could differ, impacting our fair value estimate.
Commitments and Contingencies. We are subject to litigation and other legal proceedings arising either from the normal course of business or under provisions relating to the protection of the environment.environment. Estimating liabilities and costs associated with these matters requires the use of judgment. We record a charge against earnings when a liability associated with claims or pending or threatened litigation is probable and when our exposure is reasonably estimable. The ultimate resolution of our exposure related to these matters may change as further facts and circumstances become known.


Other Contract Costs. Other contract costs represent amounts that are not currently allocable to government contracts, such as a portion of our estimated workers’ compensation obligations, other insurance-related assessments, pension and other post-retirement benefits, and environmental expenses. These costs will become allocable to contracts generally after they are paid. We have elected to defer these costs in other current assets on the Consolidated Balance Sheet until they can be allocated to contracts. We expect to recover these costs through ongoing business, including existing backlog and probable follow-on contracts. We regularly assess the probability of recovery of these costs. This assessment requires that we make assumptions about future contract costs, the extent of cost recovery under our contracts and the amount of future contract activity. These estimates are based on our best judgment. If the backlog in the future does not support the continued deferral of these costs, the profitability of our remaining contracts could be adversely affected.
Retirement Plans. Our defined-benefit pension and other post-retirement benefit costs and obligations depend on several assumptions and estimates. The key assumptions include interest rates used to discount estimated future liabilities and projected long-term rates of return on plan assets. We base the discount rates on a current yield curve developed from a portfolio of high-quality, fixed-income investments with maturities consistent with the projected benefit payout period. Beginning in 2016, we refined the method used to determine the service and interest cost components of our net annual benefit cost. Previously, the cost was determined using a single weighted-average discount rate derived from the yield curve described above. Under the refined method, known asWe use the spot rate approach we useto identify individual spot rates along the yield curve that correspond with the timing of each service cost and discounted benefit obligation payment. We believe this change provides a more precise measurement of service and interest costs by improving the correlation between projected service cost and discounted benefit obligation cash outflows andpayment.


corresponding spot rates on the yield curve. We accounted for this change prospectively as a change in accounting estimate.
We determine the long-term raterates of return on assets based on consideration of historical and forward-looking returns and the current and expected asset allocation strategy. In 2017, For 2019, we decreased the expected long-term raterates of return on assets in our primary U.S. government and commercial pensionother post-retirement benefit plans by 75100 basis points, following an assessment of the historical and expected long-term returns of our various asset classes.
These retirement plan assumptions are based on our best judgment, including consideration of current and future market conditions. In the event any of the assumptions change, pension and other post-retirement benefit cost could increase or decrease. For further discussion including the impact of hypothetical changes in the discount rate and expected long-term rate of return onabout our retirement plan assets,assumptions, see Note QR to the Consolidated Financial Statements in Item 8.
As discussed under Other Contract Costs, our contractual arrangements with the U.S. government provide for the recovery of benefit costs for our government retirement plans. We have elected to defer recognition of the benefit costs until such costs can be allocated to contracts. Therefore, the impact of annual changes in financial reporting assumptions on the retirement benefit cost for these plans does not immediately affect our operating results.
Accounting Standards Updates. See Note A to the Consolidated Financial Statements in Item 8 for information regarding accounting standards we adopted in 20172019 and other new accounting standards that have been issued by the Financial Accounting Standards Board (FASB) but are not effective until after December 31, 2017.2019.




ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to market risk, primarily from foreign currency exchange rates, interest rates, commodity prices and investments. See Note N to the Consolidated Financial Statements in Item 8 for a discussion of these risks. The following quantifies the market risk exposure arising from hypothetical changes in foreign currency exchange rates and interest rates.


We had notional forward exchange and interest rate swap contracts outstanding of $4.3 $5 billion and $5.8 billion on December 31, 2017,2019 and $6.3 billion on December 31, 2016.
In 2017, we changed our method for calculating the hypothetical, incremental pretax gains (losses) to measure the net gains (losses) for each currency pair across our portfolio of forward exchange contracts (e.g., Canadian dollar/U.S. dollar), rather than measure the gains (losses) on a contract-by-contract basis. The underlying portfolio and the associated exchange-rate risk have not changed. We restated the 2016 amount under the new method to provide comparability between 2017 and 2016.
2018, respectively. A 10% unfavorable exchange rate movement in our portfolio of forward exchange and interest rate swap contracts would have resulted in the following hypothetical, incremental pretax gains (losses):
(Dollars in millions)2017 20162019 2018
Recognized$(29) $(19)$60
 $61
Unrecognized33
 18
(161) (135)
Foreign Currency. Currency Risk. Our exchange-rate sensitivity relates primarily to changes in the Canadian dollar, euro, Swiss franc and British pound exchange rates. These losses and gains would be offset by corresponding gains and losses in the remeasurement of the underlying transactions being hedged. We believe these foreign currency forward exchange contracts and the offsetting underlying commitments, when taken together, do not create material market risk.
Interest Rate Risk.Our financial instruments subject to interest rate risk include fixed-rate,variable-rate commercial paper and fixed- and floating-rate long-term debt obligations and variable-rate commercial paper.obligations. On December 31, 2017,2019, we had $4$10.5 billion par value of fixed-rate debt and no commercial paper outstanding.$1 billion of floating-rate notes. Our fixed-rate debt obligations are not putable, and we do not trade these securities in the market. A 10% unfavorable interest rate movement would not have a material impact on the fair value of our debt obligations.fixed-rate debt. As described in Note K to the Consolidated Financial Statements in Item 8, we entered into derivative financial instruments, specifically interest rate swap contracts, to eliminate our floating-rate interest risk.
Investment Risk.Our investment policy allows for purchases of fixed-income securities with an investment-grade rating and a maximum maturity of up to five years. On December 31, 2017, 2019, we held $3 billion $902 in cash and equivalents, but held no marketable securities other than those held in trust to meet some of our obligations under workers’ compensation and non-qualified supplemental executive retirement plans.plans. On December 31, 2017,2019, these marketable securities totaled $191 $207 and were reflected at fair value on ourthe Consolidated Balance Sheet in other current and noncurrent assets.assets.




ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Prior-period information has been restated for the adoption of Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers, and Accounting Standards Update (ASU) 2015-07, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which we adopted on January 1, 2017, as discussed in Note T.


CONSOLIDATED STATEMENTSSTATEMENT OF EARNINGS


Year Ended December 31Year Ended December 31
(Dollars in millions, except per-share amounts)2017 2016 20152019 2018 2017
Revenue:          
Products$19,016
 $19,010
 $20,477
$23,130
 $20,149
 $19,016
Services11,957
 11,551
 11,304
16,220
 16,044
 11,957
30,973
 30,561
 31,781
39,350
 36,193
 30,973
Operating costs and expenses:          
Products14,799
 15,159
 15,986
(18,569) (15,894) (14,773)
Services9,987
 9,746
 9,563
(13,722) (13,584) (9,958)
General and administrative (G&A)2,010
 1,922
 1,937
(2,411) (2,258) (2,006)
26,796
 26,827
 27,486
(34,702) (31,736) (26,737)
Operating earnings4,177
 3,734
 4,295
4,648
 4,457
 4,236
Interest, net(103) (91) (83)(460) (356) (103)
Other, net3
 13
 7
14
 (16) (56)
Earnings from continuing operations before income tax4,077
 3,656
 4,219
4,202
 4,085
 4,077
Provision for income tax, net1,165
 977
 1,183
(718) (727) (1,165)
Earnings from continuing operations2,912
 2,679
 3,036
3,484
 3,358
 2,912
Discontinued operations, net of tax benefit of $51 in 2016 and $7 in 2015
 (107) 
Discontinued operations, net of tax provision of $13 in 2018
 (13) 
Net earnings$2,912
 $2,572
 $3,036
$3,484
 $3,345
 $2,912
          
Earnings per share          
Basic:          
Continuing operations$9.73
 $8.79
 $9.45
$12.09
 $11.37
 $9.73
Discontinued operations
 (0.35) 

 (0.04) 
Net earnings$9.73
 $8.44
 $9.45
$12.09
 $11.33
 $9.73
Diluted:          
Continuing operations$9.56
 $8.64
 $9.29
$11.98
 $11.22
 $9.56
Discontinued operations
 (0.35) 

 (0.04) 
Net earnings$9.56
 $8.29
 $9.29
$11.98
 $11.18
 $9.56
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.








CONSOLIDATED STATEMENTSSTATEMENT OF COMPREHENSIVE INCOME


Year Ended December 31Year Ended December 31
(Dollars in millions) 2017 2016 2015 2019 2018 2017
Net earnings $2,912
 $2,572
 $3,036
 $3,484
 $3,345
 $2,912
Gains (losses) on cash flow hedges 341
 191
 (394)
Unrealized gains (losses) on securities 9
 (9) (2)
Gains on cash flow hedges 97
 36
 341
Unrealized gains on marketable securities 
 
 9
Foreign currency translation adjustments 348
 (112) (371) 186
 (300) 348
Change in retirement plans’ funded status 20
 (192) 500
 (886) (61) 20
Other comprehensive income (loss), pretax 718
 (122) (267)
Provision (benefit) for income tax, net 151
 (18) 84
Other comprehensive income (loss), net of tax 567
 (104) (351)
Other comprehensive (loss) income, pretax (603) (325) 718
Benefit (provision) for income tax, net 162
 5
 (151)
Other comprehensive (loss) income, net of tax (441) (320) 567
Comprehensive income $3,479
 $2,468
 $2,685
 $3,043
 $3,025
 $3,479
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.








CONSOLIDATED BALANCE SHEETSSHEET


December 31December 31
(Dollars in millions)2017 20162019 2018
      
ASSETS      
Current assets:      
Cash and equivalents$2,983
 $2,334
$902
 $963
Accounts receivable3,617
 3,399
3,544
 3,759
Unbilled receivables5,240
 4,212
7,857
 6,576
Inventories5,303
 5,118
6,306
 5,977
Other current assets1,185
 1,471
1,171
 914
Total current assets18,328
 16,534
19,780
 18,189
Noncurrent assets:      
Property, plant and equipment, net3,517
 3,477
4,475
 3,978
Intangible assets, net702
 678
2,315
 2,585
Goodwill11,914
 11,445
19,677
 19,594
Other assets585
 1,038
2,594
 1,062
Total noncurrent assets16,718
 16,638
29,061
 27,219
Total assets$35,046
 $33,172
$48,841
 $45,408
      
LIABILITIES AND SHAREHOLDERS’ EQUITY      
Current liabilities:      
Short-term debt and current portion of long-term debt$2
 $900
$2,920
 $973
Accounts payable3,207
 2,538
3,162
 3,179
Customer advances and deposits6,992
 6,827
7,148
 7,270
Other current liabilities2,898
 3,185
3,571
 3,317
Total current liabilities13,099
 13,450
16,801
 14,739
Noncurrent liabilities:      
Long-term debt3,980
 2,988
9,010
 11,444
Other liabilities6,532
 6,433
9,453
 7,493
Commitments and contingencies (see Note O)

 



 


Total noncurrent liabilities10,512
 9,421
18,463
 18,937
Shareholders’ equity:      
Common stock482
 482
482
 482
Surplus2,872
 2,819
3,039
 2,946
Retained earnings26,444
 24,543
31,633
 29,326
Treasury stock(15,543) (14,156)(17,358) (17,244)
Accumulated other comprehensive loss(2,820) (3,387)(4,219) (3,778)
Total shareholders’ equity11,435
 10,301
13,577
 11,732
Total liabilities and shareholders’ equity$35,046
 $33,172
$48,841
 $45,408
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.






CONSOLIDATED STATEMENTSSTATEMENT OF CASH FLOWS


 Year Ended December 31
(Dollars in millions)2017 2016 2015
Cash flows from operating activities - continuing operations:     
Net earnings$2,912
 $2,572
 $3,036
Adjustments to reconcile net earnings to net cash provided by operating activities:     
Depreciation of property, plant and equipment362
 365
 365
Amortization of intangible assets79
 88
 116
Equity-based compensation expense123
 95
 98
Deferred income tax provision401
 184
 213
Discontinued operations, net of tax
 107
 
(Increase) decrease in assets, net of effects of business acquisitions:     
Accounts receivable(195) (122) 632
Unbilled receivables(987) (1,048) 61
Inventories(182) (377) 141
Other current assets207
 315
 80
Increase (decrease) in liabilities, net of effects of business acquisitions:     
Accounts payable657
 567
 (89)
Customer advances and deposits264
 (305) (2,153)
Other, net238
 (243) 107
Net cash provided by operating activities3,879
 2,198
 2,607
Cash flows from investing activities:     
Capital expenditures(428) (392) (569)
Business acquisitions, net of cash acquired

(399) (58) (5)
Maturities of held-to-maturity securities
 
 500
Proceeds from sales of assets50
 9
 291
Other, net(14) 15
 (17)
Net cash (used) provided by investing activities(791) (426) 200
Cash flows from financing activities:     
Purchases of common stock(1,558) (1,996) (3,233)
Dividends paid(986) (911) (873)
Proceeds from fixed-rate notes985
 992
 
Repayment of fixed-rate notes(900) (500) (500)
Proceeds from stock option exercises163
 292
 268
Other, net(103) (46) (29)
Net cash used by financing activities(2,399) (2,169) (4,367)
Net cash used by discontinued operations(40) (54) (43)
Net increase (decrease) in cash and equivalents649
 (451) (1,603)
Cash and equivalents at beginning of year2,334
 2,785
 4,388
Cash and equivalents at end of year$2,983
 $2,334
 $2,785
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.


CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

 Common Stock Retained Treasury 
Accumulated
Other 
Comprehensive
 
Total
Shareholders’    
(Dollars in millions)Par Surplus Earnings Stock Loss Equity
December 31, 2014$482
 $2,548
 $21,127
 $(9,396) $(2,932) $11,829
Cumulative-effect adjustment
    (See Note T)

 
 (372) 
 
 (372)
Net earnings
 
 3,036
 
 
 3,036
Cash dividends declared
 
 (888) 
 
 (888)
Equity-based awards
 182
 
 237
 
 419
Shares purchased
 
 
 (3,233) 
 (3,233)
Other comprehensive loss
 
 
 
 (351) (351)
December 31, 2015482

2,730

22,903

(12,392)
(3,283)
10,440
Net earnings
 
 2,572
 
 
 2,572
Cash dividends declared
 
 (932) 
 
 (932)
Equity-based awards
 89
 
 267
 
 356
Shares purchased
 
 
 (2,031) 
 (2,031)
Other comprehensive loss
 
 
 
 (104) (104)
December 31, 2016482
 2,819
 24,543
 (14,156) (3,387) 10,301
Cumulative-effect adjustment
    (See Note A)

 
 (3) 
 
 (3)
Net earnings
 
 2,912
 
 
 2,912
Cash dividends declared
 
 (1,008) 
 
 (1,008)
Equity-based awards
 53
 
 146
 
 199
Shares purchased
 
 
 (1,533) 
 (1,533)
Other comprehensive income
 
 
 
 567
 567
December 31, 2017$482
 $2,872
 $26,444
 $(15,543) $(2,820) $11,435
 Year Ended December 31
(Dollars in millions)2019 2018 2017
Cash flows from operating activities - continuing operations:     
Net earnings$3,484
 $3,345
 $2,912
Adjustments to reconcile net earnings to net cash from operating activities:     
Depreciation of property, plant and equipment466
 436
 362
Amortization of intangible and finance lease right-of-use assets363
 327
 79
Equity-based compensation expense133
 140
 123
Deferred income tax (benefit) provision92
 (3) 401
Discontinued operations, net of tax
 13
 
(Increase) decrease in assets, net of effects of business acquisitions:     
Accounts receivable176
 417
 (195)
Unbilled receivables(1,303) (800) (987)
Inventories(376) (591) (182)
Other current assets8
 310
 207
Increase (decrease) in liabilities, net of effects of business acquisitions:     
Accounts payable6
 (197) 657
Customer advances and deposits(105) 36
 264
Other, net37
 (285) 235
Net cash provided by operating activities2,981
 3,148
 3,876
Cash flows from investing activities:     
Capital expenditures(987) (690) (428)
Business acquisitions, net of cash acquired

(19) (10,099) (399)
Proceeds from sales of assets14
 562
 50
Other, net(2) (7) (11)
Net cash used by investing activities(994) (10,234) (788)
Cash flows from financing activities:     
Dividends paid(1,152) (1,075) (986)
(Repayments of) proceeds from commercial paper, net(850) 850
 
Purchases of common stock(231) (1,769) (1,558)
Proceeds from fixed-rate notes
 6,461
 985
Proceeds from floating-rate notes
 1,000
 
Repayment of CSRA accounts receivable purchase agreement
 (450) 
Repayment of fixed-rate notes
 
 (900)
Other, net236
 69
 60
Net cash (used) provided by financing activities(1,997) 5,086
 (2,399)
Net cash used by discontinued operations(51) (20) (40)
Net (decrease) increase in cash and equivalents(61) (2,020) 649
Cash and equivalents at beginning of year963
 2,983
 2,334
Cash and equivalents at end of year$902
 $963
 $2,983
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.





CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

 Common Stock Retained Treasury 
Accumulated
Other 
Comprehensive
 
Total
Shareholders’    
(Dollars in millions)Par Surplus Earnings Stock Loss Equity
December 31, 2016$482
 $2,819
 $24,543
 $(14,156) $(3,387) $10,301
Cumulative-effect adjustment (a)
 
 (3) 
 
 (3)
Net earnings
 
 2,912
 
 
 2,912
Cash dividends declared
 
 (1,008) 
 
 (1,008)
Equity-based awards
 53
 
 146
 
 199
Shares purchased
 
 
 (1,533) 
 (1,533)
Other comprehensive income
 
 
 
 567
 567
December 31, 2017482

2,872

26,444

(15,543)
(2,820)
11,435
Cumulative-effect adjustments (b)
 
 638
 
 (638) 
Net earnings
 
 3,345
 
 
 3,345
Cash dividends declared
 
 (1,101) 
 
 (1,101)
Equity-based awards
 74
 
 105
 
 179
Shares purchased
 
 
 (1,806) 
 (1,806)
Other comprehensive loss
 
 
 
 (320) (320)
December 31, 2018482
 2,946
 29,326
 (17,244) (3,778) 11,732
Net earnings
 
 3,484
 
 
 3,484
Cash dividends declared
 
 (1,177) 
 
 (1,177)
Equity-based awards
 93
 
 70
 
 163
Shares purchased
 
 
 (184) 
 (184)
Other comprehensive loss
 
 
 
 (441) (441)
December 31, 2019$482
 $3,039
 $31,633
 $(17,358) $(4,219) $13,577
The accompanying Notes to Consolidated Financial Statements are an integral part of these financial statements.

(a) Reflects the cumulative effect of Accounting Standards Update (ASU) 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which we adopted on January 1, 2017.
(b) Reflects the cumulative effects of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, and ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which we adopted on January 1, 2018.




NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Dollars in millions, except per-share amounts or unless otherwise noted)


A. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Organization.General Dynamics is organized into foura global aerospace and defense company that offers a broad portfolio of products and services in business groups: Aerospace, which delivers Gulfstream aircraft and provides services for Gulfstream aircraft and aircraft produced by other original equipment manufacturers (OEMs); Combat Systems, which designs and manufacturesaviation; combat vehicles, weapons systems and munitions; Information Systems and Technology, which provides C4ISR (command,information technology (IT) services; command, control, communication,communications, computers, intelligence, surveillance and reconnaissance) solutionsreconnaissance (C4ISR) solutions; and information technology (IT) services;shipbuilding and Marine Systems, which designs, constructs and repairs surface ships and submarines. Our primary customer is the U.S. government. We also do significant business with non-U.S. governments and a diverse base of corporate and individual buyers of business aircraft.ship repair.
Basis of Consolidation and Classification. The Consolidated Financial Statements include the accounts of General Dynamics Corporation and our wholly owned and majority-owned subsidiaries. We eliminate all inter-company balances and transactions in the Consolidated Financial Statements. Some prior-year amounts have been reclassified among financial statement accounts or disclosures to conform to the current-year presentation.
Consistent with industry practice, we classify assets and liabilities related to long-term contracts as current, even though some of these amounts may not be realized within one year.
Further discussion of our significant accounting policies is contained in the other notes to these financial statements.
Use of Estimates. The nature of our business requires that we make estimates and assumptions in accordance with U.S. generally accepted accounting principles (GAAP). These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period.period. We base our estimates on historical experience, currently available information and various other assumptions that we believe are reasonable under the circumstances. circumstances. Actual results could differ from these estimates.
Discontinued Operations, Net of Tax. In 2013, On April 3, 2018, we settled litigation with the U.S. Navy related to the terminated A-12 aircraft contract in the company’s former tactical military aircraft business. In connection with the settlement, we released some rights to reimbursementcompleted our acquisition of costs on ships under contract at our Bath, Maine, shipyard. As we progressed through the shipbuilding process, we determined that the cost associated with this settlement was greater than anticipated. Therefore, in 2016, we recognized an $84 loss, net of tax, to adjust the previously-recognized settlement value. In addition, we recognized a $10 loss, net of tax, in 2016 related to an environmental matter associated with a former operationCSRA Inc. (CSRA). See Note B for further discussion of the company.
acquisition. In 2015,the third quarter of 2018, we completeddisposed of CSRA operations to address an organizational conflict of interest with respect to services provided to a government customer. In accordance with GAAP, the sale of our axle businessdid not result in the Combat Systems group. In 2016, we recognized a final adjustment of $13 to the loss ongain for financial reporting purposes. However, the sale generated a taxable gain, resulting in tax expense of this business.$13.
Research and Development Expenses. Company-sponsored research and development (R&D) expenses, including product developmentAerospace product-development costs, were $466 in 2019, $502 in 2018 and $521 in 2017, $418 in 2016 and $395 in 2015. The increase in 2017 is due primarily to higher2017. R&D expenses inhave trended downward over the Aerospace group associated with ongoing product-development efforts as the group progressesthree-year period with the certificationcompletion of its two newest aircraft models, the G500 and G600.G600 aircraft test programs, offset partially by increased activities associated with the development of the new G700 aircraft model. R&D expenses are included in operating costs and expenses in the Consolidated


Statement of Earnings in the period in which they are incurred. Customer-sponsored R&D expenses are charged directly to the related contracts.
The Aerospace groupsegment has cost-sharing arrangements with some of its suppliers that enhance the group’ssegment’s internal development capabilities and offset a portion of the financial cost associated with the group’ssegment’s product development efforts. These arrangements explicitly state that supplier contributions are for reimbursementsreimbursement of costs we incur in the development of new aircraft models and technologies, and we retain substantial rights in the products developed under these arrangements. We record amounts received from these cost-sharing arrangements as a reduction of R&D expenses. We have no obligation to refund


any amounts received under the agreements regardless of the outcome of the development efforts. Under the typical terms of an agreement, payments received from suppliers for their share of the costs are based on milestones and are recognized as received. Our policy is to defer payments in excess of the costs we have incurred.
Interest, Net. Net interest expense consisted of the following:
Year Ended December 312019 2018 2017
Interest expense$472
 $374
 $117
Interest income(12) (18) (14)
Interest expense, net$460
 $356
 $103

Year Ended December 312017 2016 2015
Interest expense$117
 $99
 $98
Interest income(14) (8) (15)
Interest expense, net$103
 $91
 $83
The increase in 2018 and 2019 is due primarily to the impact of financing the CSRA acquisition, including the issuance of $7.5 billion of fixed- and floating-rate notes in the second quarter of 2018. See Note K for additional information regarding our debt obligations, including interest rates.
Cash and Equivalents and Investments in Debt and Equity Securities. We consider securities with a maturity of three months or less to be cash equivalents. Our cash balances are invested primarily in time deposits rated A-/A3 or higher. Our investments in other securities are included in other current and noncurrent assets on the Consolidated Balance Sheet (see Note E). We report our held-to-maturityequity securities at amortized cost.fair value with subsequent changes in fair value recognized in net earnings. We report our available-for-sale debt securities at fair value. Changes in the fair value of available-for-sale securities arewith unrealized gains and losses recognized as a component of other comprehensive income (loss) in the Consolidated Statement of Comprehensive Income. We had no0 trading or held-to-maturity debt securities on December 31, 20172019 or 2016.2018.
Cash flows in 2016 and 2015 were affected negatively by growth in operating working capital in our Combat Systems group due to the utilization of deposits and the timing of billings on a large contract for a Middle Eastern customer, and in our Aerospace group from the build-up of inventory related to the new G500 and G600 aircraft programs and the liquidation of customer deposits associated with aircraft deliveries. In 2017, the growth in operating working capital due to these factors slowed and was offset by lower income tax payments.
Other Contract Costs.Other contract costs represent amounts that are not currently allocable to government contracts, such as a portion of our estimated workers’ compensation obligations, other insurance-related assessments, pension and other post-retirement benefits, and environmental expenses. These costs will become allocable to contracts generally after they are paid.We expect to recover these costs through ongoing business, including existing backlog and probable follow-on contracts.If the backlog in the future does not support the continued deferral of these costs, the profitability of our remaining contracts could be adversely affected. Other contract costs on December 31, 20172019 and 2016,2018, were $448$144 and $699,$135, respectively, and are included in other current assets on the Consolidated Balance Sheet.Sheet.
Long-lived Assets and Goodwill. We review long-lived assets, including intangible assets subject to amortization, for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. We assess the recoverability of the carrying value of assets held for use based on a review of undiscounted projected cash flows. Impairment losses, where identified, are measured as the excess of the carrying value of the long-lived asset over its estimated fair value as determined by discounted projected cash flows.


We review goodwill for impairment annually or when circumstances indicate that an impairment is more likely than not. Goodwill represents the purchase price paid in excess of the fair value of net tangible and intangible assets acquired. The testacquired in a business combination. We review goodwill for goodwillimpairment annually at each of our reporting units or when circumstances indicate that the likelihood of an impairment is greater than 50%.Our reporting units are consistent with our operating segments in Note S. We use both qualitative and quantitative approaches when testing goodwill for impairment. When determining the approach to be used, we consider the current facts and circumstances of each reporting unit as well as the excess of each reporting unit’s estimated fair value over its carrying value based on our most recent quantitative assessments. Our qualitative approach evaluates the business environment and various events impacting the reporting unit including, but not limited to, macroeconomic conditions, changes in the business environment and reporting unit-specific events. If, based on the qualitative assessment, we determine that it is more likely than not that


the fair value of a reporting unit is greater than its carrying value, then a quantitative assessment is not necessary. However, if a quantitative assessment is determined to be necessary, we use a two-step process to first identify potential goodwill impairment for eacha reporting unit by comparing its fair value to its carrying value and then, if necessary, measure the amount of the impairment loss.Our reporting units are consistent with our business groups in Note R. We completed the required annual goodwill impairment test asestimate of December 31, 2017. The first step of the goodwill impairment test compares the fair value of each of our reporting units to its carrying value. We estimate the fair value of our reporting unitsis based primarily on the discounted projected cash flows of the underlying operations.operations.
As of December 31, 2019, we completed qualitative assessments for our Aerospace, Combat Systems, Mission Systems and Marine Systems reporting units as the estimated fair values of each of these reporting units significantly exceeded the respective carrying values based on our most recent quantitative assessments, which were performed as of December 31, 2018. Our qualitative assessments did not present indicators of impairment for these reporting units as of December 31, 2019.
As of December 31, 2019, we completed a quantitative assessment for our Information Technology reporting unit, and the results indicated that no impairment existed. The Information Technology reporting unit’s estimated fair value exceeded its carrying value by approximately 25%, reflecting the size of eachthe CSRA acquisition relative to the Information Technology reporting unit and its recent acquisition date. Given that the net book value of ourthis business was recorded at its fair value at the acquisition date in 2018, the reporting units was well in excess ofunit’s carrying value, by default, continues to closely approximate its respective carryingfair value as of December 31, 2017. 2019. As the carrying value and fair value of the Information Technology reporting unit are closely aligned, a material change in the fair value or carrying value could put the reporting unit at risk of goodwill impairment. For example, if the synergies from the acquisition or funding in the U.S. government budget for our contracts fall significantly below our projections, the fair value of the reporting unit would be negatively impacted. Similarly, an increase in interest rates would lower our discounted cash flows and negatively impact the fair value of the reporting unit. We believe the projections and assumptions we used in estimating fair value are reasonable, but it is possible actual experience could differ, impacting our fair value estimate.
For a summary of our goodwill by reporting unit, see Note C.B.
Accounting Standards Updates. On January 1, 2017,2019, we retrospectively adopted the following accounting standards issued by the Financial Accounting Standards Board (FASB) that impacted our prior-period financial statements:
ASC Topic 606, Revenue from Contracts with Customers
ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes
See Note T for further discussion of each of these accounting standards.:
We also adopted ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, on January 1, 2017. We recognized the cumulative effect of this standard as a $3 decrease to retained earnings on the date of adoption. ASU 2016-16 requires recognition of the current and deferred income tax effects of an intra-entity asset transfer, other than inventory, when the transfer occurs, as opposed to former GAAP, which required companies to defer the income tax effects of intra-entity asset transfers until the asset was sold to an outside party. The income tax effects of intra-entity inventory transfers will continue to be deferred until the inventory is sold.
There are several new accounting standards that have been issued by the FASB but are not effective until after December 31, 2017, including the following:
ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. Specific to our business, ASU 2016-01 requires equity investments to be measured at fair value with changes in fair value recognized in net income. The ASU eliminates the available-for-sale classification for equity investments that recognized changes in fair value as a component of other comprehensive income. We adopted the standard on a modified retrospective basis with a cumulative-effect adjustment to the Consolidated Balance Sheet on January 1, 2018. The adoption of the ASU did not have a material effect on our results of operations, financial condition or cash flows.
ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 is intended to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the Consolidated Statement of Cash Flows by providing guidance on eight specific cash flow issues. We adopted the standard retrospectively on January 1, 2018. The adoption of the ASU did not have a material effect on our cash flows.
ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. ASU 2017-07 requires the service cost component of net benefit cost to be reported separately from the other components of net benefit cost in the income statement. The ASU also allows only the service cost component of net benefit cost to be eligible for capitalization. We adopted the standard retrospectively on January 1, 2018. Our reported


2017 operating earnings, when restated, will increase $59 due to the reclassification of the non-service cost components of net benefit cost, and our reported other income will decrease by the same amount, with no impact to net earnings. The area of the ASU related to capitalization did not have a material effect on our results of operations, financial condition or cash flows.
ASU 2016-02, Leases (Topic 842). ASU 2016-02Accounting Standards Codification (ASC) Topic 842, Leases. ASC Topic 842 requires the recognition of lease rights and obligations as assets and liabilities on the balance sheet. Previously, lessees were not required to recognize on the balance sheet assets and liabilities arising from operating leases. As we elected the cumulative-effect adoption method, prior-period information has not been restated.
The ASU also requires disclosurestandard provided several optional practical expedients for use in transition. We elected to use what the FASB has deemed the “package of key informationpractical expedients,” which allowed us not to reassess our previous conclusions about lease identification, lease classification and the accounting treatment for initial direct costs. We did not elect the practical expedient pertaining to the use of hindsight.
The most significant effects of the standard on our Consolidated Financial Statements are (1) the recognition of new right-of-use assets and lease liabilities on our Consolidated Balance Sheet for our operating leases, and (2) significant new disclosures about our leasing arrangements. ASU 2016-02 is effectiveactivities (see Note P). We adopted the standard on January 1, 2019, using a modified retrospective methodand recognized operating lease liabilities and right-of-use assets of adoption as of January 1, 2017. In January 2018,$1.4 billion based on the FASB issued an exposure draftpresent value of the proposed ASU, Leases (Topic 842): Targeted Improvements.remaining lease payments over the lease term. The proposed ASU provides an alternative transition method of adoption permitting the recognition ofdid not result in a cumulative-effect adjustment to retained earnings on the date of adoption.
We intend to adopt theearnings. The new standard on the effective date, butdid not have not yet selected a transition method. We are currently evaluating our population of leased assets in order to assess thematerial impact of the ASU on our lease portfolio, and designing and implementing new processes and controls. Until this effort is completed, we cannot determine the effect of the ASU on our results of operations, financial condition or cash flows.
ASU 2017-12, Derivatives2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans. ASU


2018-14 adds, removes and Hedging (Topic 815): Targeted Improvements to Accountingclarifies disclosure requirements for Hedging Activities. ASU 2017-12defined-benefit pension and other post-retirement benefit plans. The standard is intended to simplify hedge accounting by better aligning an entity’s financial reporting for hedging relationships with its risk management activities. The ASU also simplifies the application of the hedge accounting guidance. ASU 2017-12 is effective retrospectively on January 1, 2019,2020, with early adoption permitted. For cash flow hedges existing atWe adopted the standard in 2019, and the adoption date,did not have a material effect on our disclosures.
There are several other accounting standards that have been issued by the FASB but are not yet effective, including ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 significantly changes how entities account for credit losses for financial assets and certain other instruments, including trade receivables and contract assets, that are not measured at fair value through net income. The ASU requires a number of changes to the assessment of credit losses, including the utilization of an expected credit loss model, which requires consideration of a broader range of information to estimate expected credit losses over the entire lifetime of the asset, including losses where probability is considered remote. Additionally, the standard requires adoptionthe estimation of lifetime expected losses for trade receivables and contract assets that are classified as current. We adopted the standard on a modified retrospective basis with a cumulative-effect adjustment to the Consolidated Balance Sheet asJanuary 1, 2020. The adoption of the beginning of the year of adoption. The amendments to presentation guidance and disclosure requirements are required to be adopted prospectively. WeASU did not have not yet determined thea material effect of the ASU on our results of operations, financial condition or cash flows, nor have we selected a transition date.flows.
Subsequent Event.
B. ACQUISITIONS AND DIVESTITURES, GOODWILL, AND INTANGIBLE ASSETS
CSRA Acquisition
On February 12,April 3, 2018, we announced that we had entered into a definitive agreement to acquire allacquired 100% of the outstanding shares of CSRA for $40.75$41.25 per share in cash. The transaction is valued at $9.6 billion, includingcash plus the assumption of $2.8 billionoutstanding net debt. CSRA is a provider of IT solutions to the defense, intelligence and federal civilian markets and is included in CSRA debt. We anticipate financingour Information Technology segment.
Fair Value of Net Assets Acquired. The following table summarizes the transaction through a combination of available cash and new debt financing. We will commence a cash tender offer to purchase allallocation of the outstanding shares$9.7 billion cash purchase price to the estimated fair values of the assets acquired and liabilities assumed on the acquisition date, with the excess recorded as goodwill:
Cash and equivalents$45
Accounts receivable155
Unbilled receivables415
Other current assets303
Property, plant and equipment, net326
Intangible assets, net2,066
Goodwill7,935
Other noncurrent assets369
Total assets$11,614
Accounts payable$(135)
Customer advances and deposits(151)
Current lease obligation(51)
Other current liabilities(434)
Noncurrent lease obligation(207)
Noncurrent deferred tax liability(355)
Other noncurrent liabilities(532)
Total liabilities$(1,865)
Net assets acquired$9,749



Pro Forma Information (Unaudited). The following pro forma information presents our consolidated revenue and earnings from continuing operations as if the acquisition of CSRA common stock. The tender offer is subject to customary conditions, including antitrust clearance and the tenderrelated financing transactions had occurred on January 1, 2017:
Year Ended December 312018 2017
Revenue$37,534
 $35,828
Earnings from continuing operations3,390
 2,982
Diluted earnings per share from continuing operations$11.33
 $9.79
The pro forma information was prepared by combining our reported historical results with the historical results of CSRA for the pre-acquisition periods. In addition, the reported historical amounts were adjusted for the following items, net of associated tax effects:
The impact of acquisition financing.
The removal of CSRA operations that we were required by a government customer to dispose of to address an organizational conflict of interest with respect to services provided to the customer. We completed the sale of these operations in 2018.
The removal of CSRA’s historical pre-acquisition intangible asset amortization expense and debt-related interest expense.
The impact of intangible asset amortization expense assuming our estimate of fair value was applied on January 1, 2017.
The payment of acquisition-related costs assuming they were incurred on January 1, 2017.
The pro forma information does not reflect the realization of expected cost savings or synergies from the acquisition, and does not reflect what our combined results of operations would have been had the acquisition occurred on January 1, 2017.
Other Acquisitions and Divestitures
In 2019, we acquired 2 businesses in our Aerospace segment and a business in our Mission Systems segment for an aggregate of approximately $20.
In 2018, in addition to the acquisition of CSRA, we acquired 5 businesses for an aggregate of approximately $400:
Hawker Pacific, a leading provider of aircraft services across Asia Pacific and the Middle East, and 2 fixed-base operator (FBO) businesses in our Aerospace segment;
a maintenance and service provider for the German Army and other international customers in our Combat Systems segment; and
a provider of specialized transmitters and receivers in our Mission Systems segment.
In 2017, we acquired 4 businesses for an aggregate of approximately $400:
an FBO in our Aerospace segment;
a provider of mission-critical support services in our Information Technology segment; and
a manufacturer of electronics and communications products and a manufacturer of signal distribution products in our Mission Systems segment.
The operating results of these acquisitions have been included with our reported results since the respective closing dates. The purchase prices of the acquisitions have been allocated to the estimated fair value of net tangible and intangible assets acquired, with any excess purchase price recorded as goodwill.


In 2019, we completed the sale of a majoritybusiness in our Information Technology segment that was classified as held for sale on the Consolidated Balance Sheet on December 31, 2018. In 2018, we completed the sale of 3 businesses in our Information Technology segment: a commercial health products business, CSRA operations that we were required by a government customer to dispose of to address an organizational conflict of interest with respect to services provided to the customer and a public-facing contact-center business.
Goodwill
The changes in the carrying amount of goodwill by reporting unit were as follows:
 Aerospace Combat Systems Information Systems and Technology Information Technology Mission Systems Marine Systems Total Goodwill
December 31, 2017 (a)$2,638
 $2,677
 $6,302
 $
 $
 $297
 $11,914
Acquisitions/
 divestitures (b)

 
 16
 
 
 
 16
Other (c)40
 (14) (1) 
 
 
 25
April 1, 2018 (a)2,678
 2,663
 6,317
 
 
 297
 11,955
Change in reporting
 unit composition (d)

 
 (6,317) 2,076
 4,241
 
 
Acquisitions/
 divestitures (b)
183
 30
 
 7,601
 7
 
 7,821
Other (c)(48) (60) 
 (55) (19) 
 (182)
December 31, 2018 (e)2,813
 2,633
 
 9,622
 4,229
 297
 19,594
Acquisitions/
 divestitures (b)
3
 15
 
 77
 6
 
 101
Other (c)15
 33
 
 1
 (67) 
 (18)
December 31, 2019 (e)$2,831
 $2,681
 $
 $9,700
 $4,168
 $297
 $19,677
(a)Goodwill in the Information Systems and Technology reporting unit is net of $1.9 billion of accumulated impairment losses.
(b)Includes adjustments during the purchase price allocation period. Activity in the first quarter of 2018 and the nine-month period ended December 31, 2018, also includes an allocation of goodwill associated with the sale of the outstanding sharescommercial health products business and an allocation of goodwill associated with the sale of a public-facing contact-center business, respectively, as discussed above.
(c)Consists primarily of adjustments for foreign currency translation. Activity in the nine-month period ended December 31, 2018, also includes an allocation of goodwill in our Information Technology reporting unit associated with certain operations classified as held for sale on the Consolidated Balance Sheet on December 31, 2018. Activity in 2019 also includes an allocation of goodwill in our Mission Systems reporting unit associated with a non-core operation classified as held for sale on the Consolidated Balance Sheet on December 31, 2019.
(d)Concurrent with the acquisition of CSRA, common stock.we reorganized our Information Systems and Technology operating segment, in accordance with the nature of the segment’s products and services, into the Information Technology and Mission Systems segments. This reorganization similarly changed the composition of our reporting units. Accordingly, goodwill of the Information Systems and Technology reporting unit was reassigned to the Information Technology and Mission Systems reporting units using a relative fair value allocation approach as of the date of the reorganization.
(e)Goodwill in the Information Technology and Mission Systems reporting units is net of $536 and $1.3 billion of accumulated impairment losses, respectively.


Intangible Assets
Intangible assets consisted of the following:
 Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount
December 312019 2018
Contract and program
 intangible assets (b)
$3,776
$(1,779)$1,997
 $3,771
$(1,531)$2,240
Trade names and trademarks474
(195)279
 469
(177)292
Technology and software164
(126)38
 165
(116)49
Other intangible assets159
(158)1
 159
(155)4
Total intangible assets$4,573
$(2,258)$2,315
 $4,564
$(1,979)$2,585
(a)Change in gross carrying amounts consists primarily of adjustments for acquired intangible assets and foreign currency translation.
(b)Consists of acquired backlog and probable follow-on work and associated customer relationships.
We did not recognize any impairments of our intangible assets in 2019, 2018 or 2017. The amortization lives (in years) of our intangible assets on December 31, 2019, were as follows:
Intangible AssetRange of Amortization Life
Contract and program intangible assets7-30
Trade names and trademarks30
Technology and software5-15
Other intangible assets7

Amortization expense is included in operating costs and expenses in the Consolidated Statement of Earnings. Amortization expense was $277 in 2019, $270 in 2018 and $79 in 2017. We expect to completerecord annual amortization expense over the acquisition in the first half of 2018.next five years as follows:

Year Ended December 31Amortization Expense
2020$264
2021220
2022192
2023177
2024164


B.C. REVENUE
The majority of our revenue is derived from long-term contracts and programs that can span several years. We account for revenue in accordance with ASC Topic 606.
Performance Obligations.A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in ASC Topic 606. for revenue.A contract’s transaction price is allocated to each distinct performance obligation within that contract and recognized as revenue when, or as, the performance obligation is satisfied. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts and is, therefore, not distinct. Some of our contracts have multiple performance obligations, most commonly due to the contract covering multiple phases of the product lifecycle (development, production, maintenance


and support). For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone


selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is the expected cost plus a margin approach, under which we forecast our expected costs of satisfying a performance obligation and then add an appropriate margin for that distinct good or service.
Contract modifications are routine in the performance of our contracts. Contracts are often modified to account for changes in contract specifications or requirements. In most instances, contract modifications are for goods or services that are not distinct and, therefore, are accounted for as part of the existing contract.
Our performance obligations are satisfied over time as work progresses or at a point in time. Revenue from products and services transferred to customers over time accounted for 71%73% of our revenue in 2017, 72%2019, 74% in 20162018 and 68%71% in 2015. 2017. Substantially all of our revenue in the defense groupssegments is recognized over time, because control is transferred continuously to our customers.Typically, revenue is recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Contract costs include labor, material, overhead and, when appropriate, G&A expenses.
Revenue from goods and services transferred to customers at a point in time accounted for 29%27% of our revenue in 2017, 28%2019, 26% in 20162018 and 32%29% in 2015. 2017. The majority of our revenue recognized at a point in time is for the manufacture of business-jet aircraft in our Aerospace group. segment.Revenue on these contracts is recognizedwhen the customer obtains control of the asset, which is generally upon delivery and acceptance by the customer of the fully outfitted aircraft.
On December 31, 2017,2019, we had $63.2$86.9 billion of remaining performance obligations, which we also refer to as total backlog. We expect to recognize approximately 40%35% of our remaining performance obligations as revenue in 2018,2020, an additional 40%35% by 20202022 and the balance thereafter.
Contract Estimates. The majority of our revenue is derived from long-term contracts and programs that can span several years. Accounting for long-term contracts and programs involves the use of various techniques to estimate total contract revenue and costs. For long-term contracts, we estimate the profit on a contract as the difference between the total estimated revenue and expected costs to complete a contract and recognize that profit over the life of the contract.
Contract estimates are based on various assumptions to project the outcome of future events that often span several years.These assumptions include labor productivity and availability; the complexity of the work to be performed; the cost and availability of materials; the performance of subcontractors; and the availability and timing of funding from the customer.
The nature of our contracts gives rise to several types of variable consideration, including claims and award and incentive fees. We include in our contract estimates additional revenue for submitted contract modifications or claims against the customer when we believe we have an enforceable right to the modification or claim, the amount can be estimated reliably and its realization is probable. In evaluating these criteria, we consider the contractual/legal basis for the claim, the cause of any additional costs incurred, the reasonableness of those costs and the objective evidence available to support the claim. We include award or incentive fees in the estimated transaction price when there is a basis to reasonably estimate the amount of the fee. These estimates are based on historical award experience, anticipated performance and our best judgment at the time. Because of our certainty in estimating these amounts, they are included in the transaction price of our contracts and the associated remaining performance obligations.


As a significant change in one or more of these estimates could affect the profitability of our contracts, we review and update our contract-related estimates regularly.We recognize adjustments in estimated profit


on contracts under the cumulative catch-up method.Under this method, the impact of the adjustment on profit recorded to date on a contract is recognized in the period the adjustment is identified.Revenue and profit in future periods of contract performance are recognized using the adjusted estimate. If at any time the estimate of contract profitability indicates an anticipated loss on the contract, we recognize the total loss in the period it is identified.
The impact of adjustments in contract estimates on our operating earnings can be reflected in either operating costs and expenses or revenue. The aggregate impact of adjustments in contract estimates increased our revenue, operating earnings and diluted earnings per share as follows:
Year Ended December 312019 2018 2017
Revenue$342
 $377
 $292
Operating earnings271
 345
 323
Diluted earnings per share$0.74
 $0.91
 $0.69

Year Ended December 312017 2016 2015
Revenue$292
 $95
 $356
Operating earnings323
 16
 271
Diluted earnings per share$0.69
 $0.03
 $0.54
While noNo adjustment on any one contract was material to our Consolidated Financial Statements in 2017, 2016 2019, 2018 or 2015, the amount in 2016 was negatively impacted by a loss on the design and development phase of the AJAX program in our Combat Systems group and cost growth associated with the restart of the Navy’s DDG-51 program in our Marine Systems group.2017.
Revenue by Category. Our portfolio of products and services consists of almost 10,000approximately 11,000 active contracts. The following series of tables presents our revenue disaggregated by several categories.
Revenue by major products and services was as follows:
Year Ended December 312019 2018 2017
Aircraft manufacturing and completions$7,355
 $6,226
 $6,320
Aircraft services2,154
 2,096
 1,743
Pre-owned aircraft292
 133
 66
Total Aerospace9,801
 8,455
 8,129
Military vehicles4,620
 4,027
 3,731
Weapons systems, armament and munitions1,906
 1,798
 1,633
Engineering and other services481
 416
 585
Total Combat Systems7,007
 6,241
 5,949
IT services8,422
 8,269
 4,410
Total Information Technology8,422
 8,269
 4,410
C4ISR solutions4,937
 4,726
 4,481
Total Mission Systems4,937
 4,726
 4,481
Nuclear-powered submarines6,254
 5,712
 5,175
Surface ships1,912
 1,872
 1,607
Repair and other services1,017
 918
 1,222
Total Marine Systems9,183
 8,502
 8,004
Total revenue$39,350
 $36,193
 $30,973
Year Ended December 312017 2016 2015
Aircraft manufacturing, outfitting and completions$6,320
 $6,074
 $7,497
Aircraft services1,743
 1,625
 1,569
Pre-owned aircraft66
 116
 111
Total Aerospace8,129
 7,815
 9,177
Wheeled combat and tactical vehicles2,506
 2,444
 2,597
Weapons systems, armament and munitions1,633
 1,517
 1,508
Tanks and tracked vehicles1,225
 934
 805
Engineering and other services585
 635
 733
Total Combat Systems5,949
 5,530
 5,643
C4ISR solutions

4,481
 4,716
 4,419
IT services4,410
 4,428
 4,510
Total Information Systems and Technology8,891
 9,144
 8,929
Nuclear-powered submarines5,175
 5,264
 5,010
Surface combatants1,043
 994
 1,081
Auxiliary and commercial ships564
 654
 672
Repair and other services1,222
 1,160
 1,269
Total Marine Systems8,004
 8,072
 8,032
Total revenue$30,973
 $30,561
 $31,781




Revenue by contract type was as follows:
Year Ended December 31, 2019Aerospace Combat Systems Information Technology Mission Systems Marine Systems Total
Revenue
Fixed-price$8,949
 $6,049
 $3,436
 $2,908
 $6,331
 $27,673
Cost-reimbursement
 894
 3,401
 1,862
 2,839
 8,996
Time-and-materials852
 64
 1,585
 167
 13
 2,681
Total revenue$9,801
 $7,007
 $8,422
 $4,937
 $9,183
 $39,350
Year Ended December 31, 2018           
Fixed-price$7,600
 $5,406
 $3,396
 $2,711
 $5,493
 $24,606
Cost-reimbursement
 800
 3,422
 1,861
 3,004
 9,087
Time-and-materials855
 35
 1,451
 154
 5
 2,500
Total revenue$8,455
 $6,241
 $8,269
 $4,726
 $8,502
 $36,193
Year Ended December 31, 2017           
Fixed-price$7,479
 $5,090
 $1,465
 $2,478
 $4,808
 $21,320
Cost-reimbursement
 823
 2,305
 1,838
 3,186
 8,152
Time-and-materials650
 36
 640
 165
 10
 1,501
Total revenue$8,129
 $5,949
 $4,410
 $4,481
 $8,004
 $30,973

Year Ended December 31, 2017Aerospace Combat Systems Information Systems and Technology Marine Systems Total
Revenue
Fixed-price$7,479
 $5,090
 $3,943
 $4,808
 $21,320
Cost-reimbursement
 823
 4,143
 3,186
 8,152
Time-and-materials650
 36
 805
 10
 1,501
Total revenue$8,129
 $5,949
 $8,891
 $8,004
 $30,973
Year Ended December 31, 2016         
Fixed-price$7,208
 $4,629
 $4,251
 $4,857
 $20,945
Cost-reimbursement
 865
 4,084
 3,204
 8,153
Time-and-materials607
 36
 809
 11
 1,463
Total revenue$7,815
 $5,530
 $9,144
 $8,072
 $30,561
Year Ended December 31, 2015         
Fixed-price$8,583
 $4,776
 $4,066
 $5,334
 $22,759
Cost-reimbursement
 838
 4,029
 2,685
 7,552
Time-and-materials594
 29
 834
 13
 1,470
Total revenue$9,177
 $5,643
 $8,929
 $8,032
 $31,781
Our segments operate under fixed-price, cost-reimbursement and time-and-materials contracts. Our production contracts are primarily fixed-price. Under these contracts, we agree to perform a specific scope of work for a fixed amount. Contracts for research, engineering, repair and maintenance, and other services are typically cost-reimbursement or time-and-materials. Under cost-reimbursement contracts, the customer reimburses contract costs incurred and pays a fixed, incentive or award-based fee. These fees are determined by our ability to achieve targets set in the contract, such as cost, quality, schedule and performance. Under time-and-materials contracts, the customer pays a fixed hourly rate for direct labor and generally reimburses us for the cost of materials.
Each of these contract types presents advantages and disadvantages. Typically, we assume more risk with fixed-price contracts. However, these types of contracts offer additional profits when we complete the work for less than originally estimated. Cost-reimbursement contracts generally subject us to lower risk. Accordingly, the associated base fees are usually lower than fees earned on fixed-price contracts. Under time-and-materials contracts, our profit may vary if actual labor-hour rates vary significantly from the negotiated rates. Also, because these contracts can provide little or no fee for managing material costs, the content mix can impact profitability.



Revenue by customer was as follows:
Year Ended December 31, 2019Aerospace Combat Systems Information Technology Mission Systems Marine Systems Total
Revenue
U.S. government:           
Department of Defense (DoD)$305
 $3,695
 $3,573
 $3,454
 $8,837
 $19,864
Non-DoD88
 13
 4,652
 499
 2
 5,254
Foreign Military Sales (FMS)105
 340
 15
 41
 188
 689
Total U.S. government498
 4,048
 8,240
 3,994
 9,027
 25,807
U.S. commercial5,477
 229
 176
 151
 142
 6,175
Non-U.S. government378
 2,663
 6
 667
 9
 3,723
Non-U.S. commercial3,448
 67
 
 125
 5
 3,645
Total revenue$9,801
 $7,007
 $8,422
 $4,937
 $9,183
 $39,350
Year Ended December 31, 2018          
U.S. government:          

DoD$236
 $2,903
 $3,213
 $3,224
 $8,098
 $17,674
Non-DoD
 8
 4,790
 506
 2
 5,306
FMS98
 317
 22
 44
 145
 626
Total U.S. government334
 3,228
 8,025
 3,774
 8,245
 23,606
U.S. commercial4,175
 251
 163
 138
 245
 4,972
Non-U.S. government551
 2,698
 81
 662
 10
 4,002
Non-U.S. commercial3,395
 64
 
 152
 2
 3,613
Total revenue$8,455
 $6,241
 $8,269
 $4,726
 $8,502
 $36,193
Year Ended December 31, 2017          
U.S. government:          

DoD$189
 $2,702
 $1,802
 $3,027
 $7,721
 $15,441
Non-DoD
 8
 2,340
 556
 
 2,904
FMS42
 374
 22
 46
 192
 676
Total U.S. government231
 3,084
 4,164
 3,629
 7,913
 19,021
U.S. commercial3,885
 220
 214
 108
 71
 4,498
Non-U.S. government210
 2,580
 32
 607
 13
 3,442
Non-U.S. commercial3,803
 65
 
 137
 7
 4,012
Total revenue$8,129
 $5,949
 $4,410
 $4,481
 $8,004
 $30,973

Year Ended December 31, 2017Aerospace Combat Systems Information Systems and Technology Marine Systems Total
Revenue
U.S. government:         
Department of Defense (DoD)$189
 $2,618
 $4,970
 $7,721
 $15,498
Non-DoD
 92
 2,755
 
 2,847
Foreign Military Sales (FMS)42
 374
 68
 192
 676
Total U.S. government231
 3,084
 7,793
 7,913
 19,021
U.S. commercial3,885
 220
 322
 71
 4,498
Non-U.S. government210
 2,580
 610
 13
 3,413
Non-U.S. commercial3,803
 65
 166
 7
 4,041
Total revenue$8,129
 $5,949
 $8,891
 $8,004
 $30,973
Year Ended December 31, 2016        
U.S. government:        

DoD$231
 $2,200
 $5,201
 $7,507
 $15,139
Non-DoD
 81
 2,735
 8
 2,824
FMS130
 333
 48
 202
 713
Total U.S. government361
 2,614
 7,984
 7,717
 18,676
U.S. commercial3,501
 287
 367
 329
 4,484
Non-U.S. government496
 2,520
 621
 26
 3,663
Non-U.S. commercial3,457
 109
 172
 
 3,738
Total revenue$7,815
 $5,530
 $9,144
 $8,072
 $30,561
Year Ended December 31, 2015        
U.S. government:        

DoD$98
 $2,225
 $5,047
 $7,324
 $14,694
Non-DoD
 83
 2,736
 12
 2,831
FMS6
 282
 38
 127
 453
Total U.S. government104
 2,590
 7,821
 7,463
 17,978
U.S. commercial4,334
 242
 385
 541
 5,502
Non-U.S. government560
 2,714
 558
 28
 3,860
Non-U.S. commercial4,179
 97
 165
 
 4,441
Total revenue$9,177
 $5,643
 $8,929
 $8,032
 $31,781
Contract Balances.The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet. In our defense groups,segments, amounts are billed as work progresses in accordance with agreed-upon contractual terms, either at periodic intervals (e.g., biweekly or monthly) or upon achievement of contractual milestones. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. However, we sometimes receive advances or deposits from our customers, particularly on our international contracts, before revenue is recognized, resulting in contract liabilities. These assets and liabilities are reported on the Consolidated Balance Sheet on a contract-by-contract basis at the end of each reporting period. In our Aerospace group,segment, we generally receive deposits from customers upon contract execution and upon achievement of contractual milestones. These deposits are liquidated


when revenue is recognized. Changes in the contract asset and liability balances during the year ended December 31, 2017,2019, were not materially impacted by any other factors.factors except for the delays in


payment on an international wheeled armored vehicle contract in our Combat Systems segment, which contributed to growth in contract assets as further discussed in Note H.
Revenue recognized in 2017, 20162019, 2018 and 20152017 that was included in the contract liability balance at the beginning of each year was $4.5 billion, $4.3 billion $4.2 billion and $6$4.3 billion, respectively. This revenue represented primarily the sale of business-jet aircraft.

C. ACQUISITIONS, GOODWILL AND INTANGIBLE ASSETS
Acquisitions. In 2017, we acquired four businesses for an aggregate of $399: a fixed-base operation (FBO) in our Aerospace group; and a manufacturer of electronics and communications products, a provider of mission-critical support services and technology solutions, and a manufacturer of signal distribution products in our Information Systems and Technology group. In 2016, we acquired an aircraft management and charter services provider in our Aerospace group and a manufacturer of unmanned underwater vehicles in our Information Systems and Technology group for an aggregate of $58. We did not acquire any businesses in 2015.
The operating results of these acquisitions have been included with our reported results since the respective closing dates. The purchase prices of the acquisitions have been allocated to the estimated fair value of net tangible and intangible assets acquired, with any excess purchase price recorded as goodwill.
Goodwill. The changes in the carrying amount of goodwill by reporting unit were as follows:
 Aerospace Combat Systems Information Systems and Technology Marine Systems Total Goodwill
December 31, 2015 (a)$2,542
 $2,591
 $6,021
 $289
 $11,443
Acquisitions (b)29
 
 2
 
 31
Other (c)(34) 7
 (10) 8
 (29)
December 31, 2016 (a)2,537
 2,598
 6,013
 297
 11,445
Acquisitions (b)28
 
 269
 
 297
Other (c)73
 79
 20
 
 172
December 31, 2017 (a)$2,638
 $2,677
 $6,302
 $297
 $11,914
(a)Goodwill in the Information Systems and Technology reporting unit is net of $2 billion of accumulated impairment losses.
(b)Includes adjustments during the purchase price allocation period.
(c)Consists primarily of adjustments for foreign currency translation.
Intangible Assets. Intangible assets consisted of the following:
 Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount Gross Carrying Amount (a)Accumulated AmortizationNet Carrying Amount
December 312017 2016
Contract and program intangible assets (b)$1,684
$(1,320)$364
 $1,633
$(1,281)$352
Trade names and trademarks465
(160)305
 446
(139)307
Technology and software137
(105)32
 121
(102)19
Other intangible assets155
(154)1
 154
(154)
Total intangible assets$2,441
$(1,739)$702
 $2,354
$(1,676)$678
(a)Change in gross carrying amounts consists primarily of adjustments for acquired intangible assets and foreign currency translation.
(b)Consists of acquired backlog and probable follow-on work and associated customer relationships.


We did not recognize any impairments of our intangible assets in 2017, 2016 or 2015. The amortization lives (in years) of our intangible assets on December 31, 2017, were as follows:
Range of Amortization Life
Contract and program intangible assets7-30
Trade names and trademarks30
Technology and software5-15
Other intangible assets7
Amortization expense was $79 in 2017, $88 in 2016 and $116 in 2015. We expect to record annual amortization expense over the next five years as follows:
2018$80
201967
202062
202157
202250


D. EARNINGS PER SHARE
We compute basic earnings per share (EPS) using net earnings for the period and the weighted average number of common shares outstanding during the period. Basic weighted average shares outstanding have decreased in 20172019 and 20162018 due to share repurchases. See Note M for further discussion of our share repurchases. Diluted EPS incorporates the additional shares issuable upon the assumed exercise of stock options and the release of restricted stock and restricted stock units (RSUs).
Basic and diluted weighted average shares outstanding were as follows (in thousands):
Year Ended December 31201720162015201920182017
Basic weighted average shares outstanding299,172
304,707
321,313
288,286
295,262
299,172
Dilutive effect of stock options and restricted stock/RSUs*5,465
5,680
5,339
2,550
3,898
5,465
Diluted weighted average shares outstanding304,637
310,387
326,652
290,836
299,160
304,637
* Excludes outstanding options to purchase shares of common stock that had exercise prices in excess of the average market price of our common stock during the year and, therefore, the effect of including these options would be antidilutive. These options totaled 4,985 in 2019, 3,143 in 2018 and 1,547 in 2017, 4,201 in 2016 and 1,706 in 2015.2017.


E. FAIR VALUE
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between marketplace participants. Various valuation approaches can be used to determine fair value, each requiring different valuation inputs. The following hierarchy classifies the inputs used to determine fair value into three levels:
Level 1 - quoted prices in active markets for identical assets or liabilities;
Level 2 - inputs, other than quoted prices, observable by a marketplace participant either directly or indirectly; and
Level 3 - unobservable inputs significant to the fair value measurement.


We did not have any significant non-financial assets or liabilities measured at fair value on December 31, 20172019 or 2016.2018.
Our financial instruments include cash and equivalents, and other investments, accounts receivable and payable, marketable securities held in trust and other investments, short- and long-term debt, and derivative financial instruments. The carrying values of cash and equivalents and accounts receivable and payable and short-term debt on the Consolidated Balance Sheet approximate their fair value. The following tables present the fair values of our other financial assets and liabilities on December 31, 20172019 and 2016,2018, and the basis for determining their fair values:

 
Carrying
Value
 
Fair
Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2) (b)
Financial Assets (Liabilities) (a)December 31, 2017
Marketable securities held in trust$191
 $191
 $69
 $122
Cash flow hedges(105) (105) 
 (105)
Short- and long-term debt principal(4,032) (3,974) 
 (3,974)
        
 December 31, 2016
Marketable securities held in trust$177
 $177
 $59
 $118
Cash flow hedges(477) (477) 
 (477)
Short- and long-term debt principal(3,924) (3,849) 
 (3,849)

(a)We had no
 
Carrying
Value
 
Fair
Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Financial Assets (Liabilities)December 31, 2019
Measured at fair value:         
    Marketable securities held in trust:         
        Cash and equivalents$24
 $24
 $11
 $13
 $
        Available-for-sale debt securities129
 129
 
 129
 
        Equity securities54
 54
 54
 
 
    Other investments4
 4
 
 
 4
    Cash flow hedges26
 26
 
 26
 
Measured at amortized cost:         
    Short- and long-term debt principal(12,005) (12,339) 
 (12,339) 
          
 December 31, 2018
Measured at fair value:         
    Marketable securities held in trust:         
        Cash and equivalents$29
 $29
 $23
 $6
 $
        Available-for-sale debt securities121
 121
 
 121
 
        Equity securities52
 52
 52
 
 
    Other investments4
 4
 
 
 4
    Cash flow hedges(69) (69) 
 (69) 
Measured at amortized cost:         
    Short- and long-term debt principal(12,518) (12,346) 
 (12,346) 

Our Level 3 financial instruments on December 31, 2017 or 2016.
(b)Determined1 assets include investments in publicly traded equity securities valued using quoted prices from the market exchanges. The fair value of our Level 2 assets and liabilities is determined under a market approach using valuation models that incorporate observable inputs such as interest rates, bond yields and quoted prices for similar assets. Our Level 3 assets and liabilities.include direct private equity investments that are measured using inputs unobservable to a marketplace participant.


F. INCOME TAXES
Income Tax Provision. We calculate our provision for federal, state and international income taxes based on current tax law. The Tax Cuts and Jobs Act (tax reform)U.S. federal tax reform was enacted on December 22, 2017, and has several key provisions impacting the accounting for and reporting of income taxes. The most significant provision reducesreduced the U.S. corporate statutory tax rate from 35% to 21% beginning on January 1, 2018. Although most provisions of tax reform are not effective until 2018, we are required to recordWe recorded the effect of athe change in tax law in the periodfourth quarter of enactment (2017).2017.
The provision for income taxes and effective tax rate in 2017 included a $119 unfavorable impact from the change in tax law. The impact iswas due primarily to the remeasurement of our U.S. federal deferred tax assets and liabilities at the tax rate expected to apply when the temporary differences are realized/settled (remeasured at a rate of 21% versus 35% for the majority of our deferred tax assets and liabilities).
The other key provision that requires recognition in the period of enactment is the one-time toll charge resulting from the mandatory deemed repatriation of undistributed foreign taxable income. As it relates to our operations, there was no impact in 2017 from the mandatory deemed repatriation as we had no net undistributed foreign taxable income subject to the toll charge.
We have obtainedU.S. Treasury Department and analyzed all necessary information to record the effect of the change in tax law, and do not anticipate reporting additional tax effects in the future. However, should the Internal Revenue Service (IRS) are expected to issue further guidance or interpretation of relevant aspects of the newrelated to tax law,reform that could impact our provision for income taxes in future periods. As a result, we believe it is reasonably possible there may adjust these amounts.be changes to provisional interpretations and



assumptions we made in our application of tax reform provisions. We do not expect the impact of any changes to have a material impact on our results of operations, financial condition or cash flows.
The following is a summary of our net provision for income taxes for continuing operations:
Year Ended December 312017 2016 20152019 2018 2017
Current:          
U.S. federal$656
 $698
 $841
$471
 $587
 $656
State31
 24
 31
36
 48
 31
International77
 71
 98
119
 95
 77
Total current764
 793
 970
626
 730
 764
Deferred:          
U.S. federal215
 140
 163
49
 (37) 215
State7
 7
 7
1
 8
 7
International60
 37
 43
42
 26
 60
Adjustment for enacted change in U.S. tax law119
 
 

 
 119
Total deferred401
 184
 213
92
 (3) 401
Provision for income taxes, net$1,165
 $977
 $1,183
$718
 $727
 $1,165
Net income tax payments$617
 $959
 $871
$572
 $532
 $617
The reported tax provision differs from the amounts paid because some income and expense items are recognized in different time periods for financial reporting than for income tax purposes. State and local income taxes allocable to U.S. government contracts are included in operating costs and expenses in the Consolidated Statement of Earnings and, therefore, are not included in the provision above.
The reconciliation from the statutory federal income tax rate to our effective income tax rate follows:
Year Ended December 312019 2018 2017
Statutory federal income tax rate21.0 % 21.0 % 35.0 %
State tax on commercial operations, net of federal benefits0.7
 1.1
 0.6
Impact of international operations0.2
 0.6
 (4.5)
Domestic production deduction
 
 (1.5)
Foreign derived intangible income(1.4) (1.2) 
Equity-based compensation(1.1) (1.1) (2.6)
Domestic tax credits(2.0) (1.1) (0.8)
Contract close-outs
 (0.5) 
Adoption impact of enacted change in U.S. tax law
 
 2.9
Other, net(0.3) (1.0) (0.5)
Effective income tax rate17.1 % 17.8 % 28.6 %
Year Ended December 312017 2016 2015
Statutory federal income tax rate35.0 % 35.0 % 35.0 %
State tax on commercial operations, net of federal benefits0.6
 0.6
 0.5
Impact of international operations(4.5) (4.0) (1.3)
Domestic production deduction(1.5) (1.5) (1.6)
Equity-based compensation(2.6) (2.3) 
Domestic tax credits(0.8) (0.9) (1.1)
Contract close-outs
 
 (2.8)
Impact of enacted change in U.S. tax law2.9
 
 
Other, net(0.5) (0.2) (0.7)
Effective income tax rate28.6 % 26.7 % 28.0 %




Net Deferred Tax Asset (Liability).Liability. The tax effects of temporary differences between reported earnings and taxable income consisted of the following:
December 312019 2018
Retirement benefits$1,097
 $1,055
Lease assets418
 
Tax loss and credit carryforwards323
 393
Salaries and wages167
 160
Workers’ compensation148
 138
Other367
 351
Deferred assets2,520
 2,097
Valuation allowances(291) (336)
Net deferred assets$2,229
 $1,761
    
Intangible assets$(1,070) $(1,061)
Lease liabilities(418) 
Contract accounting methods(375) (530)
Property, plant and equipment(291) (265)
Capital Construction Fund qualified ships(164) (160)
Other(359) (284)
Deferred liabilities$(2,677) $(2,300)
Net deferred tax liability$(448) $(539)
December 312017 2016
Retirement benefits$935
 $1,461
Tax loss and credit carryforwards437
 480
Salaries and wages137
 257
Workers’ compensation139
 235
Other335
 396
Deferred assets1,983
 2,829
Valuation allowances(402) (406)
Net deferred assets$1,581
 $2,423
    
Intangible assets$(688) $(1,049)
Contract accounting methods(500) (188)
Property, plant and equipment(182) (320)
Capital Construction Fund qualified ships(159) (240)
Other(221) (245)
Deferred liabilities$(1,750) $(2,042)
Net deferred tax (liability) asset$(169) $381

Our deferred tax assets and liabilities are included in other noncurrent assets and liabilities on the Consolidated Balance Sheet. Our net deferred tax asset (liability)liability consisted of the following:
December 312019 2018
Deferred tax asset$33
 $38
Deferred tax liability(481) (577)
Net deferred tax liability$(448) $(539)
December 312017 2016
Deferred tax asset$75
 $564
Deferred tax liability(244) (183)
Net deferred tax (liability) asset$(169) $381

We believe it is more likely than not that we will generate sufficient taxable income in future periods to realize our deferred tax assets, subject to the valuation allowances recognized.
Our retirement benefits deferred tax balance associated with our retirement benefits includes a deferred tax asset of $1.2 billion on December 31, 2019 and $1 billion on December 31, 2017, and $1.7 billion on December 31, 2016,2018, related to the amounts recorded in accumulated other comprehensive loss (AOCL) to recognize the funded status of our retirement plans. See Notes M and QR for additional details.
One of our deferred tax liabilities results from our participation in the Capital Construction Fund (CCF), a program established by the U.S. government and administered by the Maritime Administration that supports the acquisition, construction, reconstruction or operation of U.S. flag merchant marine vessels. The program allows us to defer federal and state income taxes on earnings derived from eligible programs as long as the proceeds are deposited in the fund and withdrawals are used for qualified activities. We had U.S. government accounts receivable pledged (and thereby deposited) to the CCF of $692$340 and $388$483 on December 31, 20172019 and 2016,2018, respectively.


On December 31, 2017,2019, we had net operating loss carryforwards of $1 billion$989, substantially all of which are associated with jurisdictions that begin to expire in 2019, a capital losshave an indefinite carryforward of $234 that expires in 2020 andperiod. We had tax credit carryforwards of $123$68 that beginbegan to expire in 2018.2020. Most of these carryforwards are subject to valuation allowances.


Tax Uncertainties. We participate in the IRS Compliance Assurance Process (CAP), a real-time audit of our consolidated federal corporate income tax return. The IRS has examined our consolidated federal income tax returns through 2017 and is currently reviewing our 2018 tax year.
For all periods open to examination by tax authorities, we periodically assess our liabilities and contingencies based on the latest available information. Where we believe there is more than a 50% chance that our tax position will not be sustained, we record our best estimate of the resulting tax liability, including interest, in the Consolidated Financial Statements. We include any interest or penalties incurred in connection with income taxes as part of income tax expense. The total amount of these tax liabilities on December 31, 2017, was not material to our results of operations, financial condition or cash flows.
We participate in the IRS Compliance Assurance Process (CAP), a real-time audit of our consolidated federal corporate income tax return. The IRS has examined our consolidated federal income tax returns through 2016. We do not expect the resolution of tax matters for open years to have a material impact on our results of operations, financial condition, cash flows or effective tax rate.
Based on all known facts and circumstances and current tax law, we believe the total amount of any unrecognized tax benefits on December 31, 2017,2019, was not material to our results of operations, financial condition or cash flows, and if recognized, would not have a material impact on our effective tax rate.flows. In addition, there are no0 tax positions for which it is reasonably possible that the unrecognized tax benefits will vary significantly over the next 12 months, producing, individually or in the aggregate, a material effect on our results of operations, financial condition or cash flows.


G. ACCOUNTS RECEIVABLE
Accounts receivable represent amounts billed and currently due from customers. Payment is typically received from our customers either at periodic intervals (e.g., biweekly or monthly) or upon achievement of contractual milestones. Accounts receivable consisted of the following:
December 312019 2018
Non-U.S. government$1,847
 $2,035
U.S. government1,076
 1,189
Commercial621
 535
Total accounts receivable$3,544
 $3,759
December 312017 2016
Non-U.S. government$2,228
 $2,147
U.S. government971
 793
Commercial418
 459
Total accounts receivable$3,617
 $3,399

Receivables from non-U.S. government customers included amounts related to long-term production programs for the Spanish Ministry of Defence of $2.1$1.7 billion and $1.9 billion on December 31, 2017.2019 and 2018, respectively. A different ministry, the Spanish Ministry of Industry, has funded work on these programs in advance of costs incurred by the company. The cash advances are reported on the Consolidated Balance Sheet in current customer advances and deposits and will be repaid to the Ministry of Industry as we collect on the outstanding receivables from the Ministry of Defence. The net amountamounts for these programs on December 31, 2017, was an2019 and 2018, were advance paymentpayments of $284.$295 and $338, respectively. With respect to our other receivables, we expect to collect substantially all of the year-end 20172019 balance during 2018.2020.


H. UNBILLED RECEIVABLES
Unbilled receivables represent revenue recognized on long-term contracts (contract costs and estimated profits) less associated advances and progress billings. These amounts will be billed in accordance with the agreed-upon contractual terms or upon achievement of contractual milestones.terms. Unbilled receivables consisted of the following:



December 312019 2018
Unbilled revenue$33,481
 $27,908
Advances and progress billings(25,624) (21,332)
Net unbilled receivables$7,857
 $6,576
December 312017 2016
Unbilled revenue$21,845
 $25,543
Advances and progress billings(16,605) (21,331)
Net unbilled receivables$5,240
 $4,212

The increase in net unbilled receivables in 2019 was due primarily to the timing of billings ona large international wheeled armored vehicle contractscontract in our Combat Systems group.segment. At December 31, 2019, the net unbilled receivable related to this contract was $2.9 billion. Our contract is through the Canadian government to the international customer. We have experienced delays in payment under the contract. We continue to meet our obligations under the contract and are entitled to payment for work performed. In January 2020, we received a $500 progress payment in connection with the outstanding balance. We expect to collect the full amount currently outstanding. Other than the balance related to the large international vehicle contract, we expect to bill substantially all of the remaining year-end 2019 net unbilled receivables balance during 2020. The amount not expected to be billed in 2020 results primarily from the agreed-upon contractual billing terms.
G&A costs in unbilled revenue on December 31, 20172019 and 2016,2018, were $282$441 and $234,$381, respectively. Contract costs also may include estimated contract recoveries for matters such as contract changes and claims for unanticipated contract costs. We record revenue associated with these matters only when the amount of recovery can be estimated reliably and realization is probable.
We expect to bill all but approximately 20% of our year-end 2017 net unbilled receivables balance during 2018. The amount not expected to be billed in 2018 results primarily from the agreed-upon contractual billing terms.


I.INVENTORIES
The majority of our inventories are for business-jet aircraft. Our inventories are stated at the lower of cost or net realizable value. Work in process represents largely labor, material and overhead costs associated with aircraft in the manufacturing process and is based primarily on the estimated average unit cost in a production lot. Raw materials are valued primarily on the first-in, first-out method. We record pre-owned aircraft acquired in connection with the sale of new aircraft at the lower of the trade-in value or the estimated net realizable value.
Inventories consisted of the following:
December 312019 2018
Work in process$4,419
 $4,357
Raw materials1,733
 1,504
Finished goods30
 33
Pre-owned aircraft124
 83
Total inventories$6,306
 $5,977

December 312017 2016
Work in process$3,872
 $3,643
Raw materials1,357
 1,429
Finished goods51
 24
Pre-owned aircraft23
 22
Total inventories$5,303
 $5,118
The increase in total inventories was due primarily to the ramp-up in production of the new G600 aircraft in our Aerospace segment. Customer deposits associated with these aircraft, which are reflected in customer advances and deposits and other noncurrent liabilities on the Consolidated Balance Sheet, have also increased.
We received both type and production certification from the U.S. Federal Aviation Administration (FAA) for the G600 aircraft in June 2019 and delivered the first G600 aircraft in the third quarter of 2019. The increase in total inventories was also driven by production of initial units of the newly announced G700 aircraft.



J. PROPERTY, PLANT AND EQUIPMENT, NET
Property, plant and equipment (PP&E) is carried at historical cost, net of accumulated depreciation. ThePP&E by major classesasset class consisted of PP&E were as follows:


the following:
December 312017 20162019 2018
Machinery and equipment$4,736
 $4,582
$5,441
 $5,152
Buildings and improvements2,837
 2,745
3,232
 2,962
Land and improvements357
 333
400
 386
Construction in process307
 269
688
 472
Total PP&E8,237
 7,929
9,761
 8,972
Accumulated depreciation(4,720) (4,452)(5,286) (4,994)
PP&E, net$3,517
 $3,477
$4,475
 $3,978
We depreciate most of our assets using the straight-line method and the remainder using accelerated methods. Buildings and improvements are depreciated over periods of up to 50 years. Machinery and equipment are depreciated over periods of up to 30 years. Our government customers provide certain facilities and equipment for our use that are not included above.




K. DEBT
Debt consisted of the following:
December 31 2019 2018
Fixed-rate notes due:Interest rate:   
May 20202.875%$2,000
 $2,000
May 20213.000%2,000
 2,000
July 20213.875%500
 500
November 20222.250%1,000
 1,000
May 20233.375%750
 750
August 20231.875%500
 500
November 20242.375%500
 500
May 20253.500%750
 750
August 20262.125%500
 500
November 20272.625%500
 500
May 20283.750%1,000
 1,000
November 20423.600%500
 500
Floating-rate notes due:    
May 20203-month LIBOR + 0.29%500
 500
May 20213-month LIBOR + 0.38%500
 500
Commercial paper2.568% at December 31, 2018
 850
OtherVarious505
 168
Total debt principal 12,005
 12,518
Less unamortized debt issuance costs
    and discounts
 75
 101
Total debt 11,930
 12,417
Less current portion 2,920
 973
Long-term debt $9,010
 $11,444

December 31 2017 2016
Fixed-rate notes due:Interest rate:   
November 20171.000%$
 $900
July 20213.875%500
 500
November 20222.250%1,000
 1,000
August 20231.875%500
 500
November 20242.375%500
 
August 20262.125%500
 500
November 20272.625%500
 
November 20423.600%500
 500
OtherVarious32
 24
Total debt principal 4,032
 3,924
Less unamortized debt issuance costs and discounts 50
 36
Total debt 3,982
 3,888
Less current portion 2
 900
Long-term debt $3,980
 $2,988
In the third quarter of 2017, we issued $1 billion of fixed-rate notes. We used the proceeds to repay $900 of fixed-rate notes that matured in the fourth quarter of 2017 and for general corporate purposes. Interest payments associated with our debt were $434 in 2019, $312 in 2018 and $93 in 2017, $83 in 2016 and $90 in 2015.2017.
Our fixed-ratefixed- and floating-rate notes are fully and unconditionally guaranteed by several of our 100%-owned subsidiaries. See Note ST for condensed consolidating financial statements. We have the option to redeem the fixed-rate notes prior to their maturity in whole or in part for the principal plus any accrued but unpaid interest and applicable make-whole amounts.


The aggregate amounts of scheduled principal maturities of our debt for the next five years are as follows:
Year Ended December 31
Debt
Principal
2020$2,922
20213,009
20221,009
20231,255
2024505
Thereafter3,305
Total debt principal$12,005

Year Ended December 31 
2018$2
20193
20203
2021503
20221,003
Thereafter2,518
Total debt principal$4,032


On December 31, 2017,2019, we had no0 commercial paper outstanding, but we maintain the ability to access the commercial paper market in the future. We have $2$5 billion in committed bank credit facilities for general corporate purposes and working capital needs.needs and to support our commercial paper issuances. These credit facilities include a $1$2 billion multi-year364-day facility expiring in July 2018 andMarch 2020, a $1 billion multi-year facility expiring in November 2020.2020 and a $2 billion multi-year facility expiring in March 2023. We may renew or replace these credit facilities in whole or in part at or prior to their expiration dates. Our bank credit facilities are guaranteed by several of our 100%-owned subsidiaries. We also have an effective shelf registration on file with the SECSecurities and Exchange Commission that allows us to access the debt markets.
Our financing arrangements contain a number of customary covenants and restrictions. We were in compliance with all covenants and restrictions on December 31, 2017.2019.


L. OTHER LIABILITIES
A summary of significant other liabilities by balance sheet caption follows:
December 312017 20162019 2018
Salaries and wages$786
 $693
$941
 $952
Fair value of cash flow hedges180
 521
Workers’ compensation320
 337
306
 244
Retirement benefits295
 303
296
 272
Operating lease liabilities252
 
Fair value of cash flow hedges32
 141
Other (a)1,317
 1,331
1,744
 1,708
Total other current liabilities$2,898
 $3,185
$3,571
 $3,317
      
Retirement benefits$4,408
 $4,393
$5,172
 $4,422
Operating lease liabilities1,251
 
Customer deposits on commercial contracts
814
 719
709
 726
Deferred income taxes244
 183
481
 577
Other (b)1,066
 1,138
1,840
 1,768
Total other liabilities$6,532
 $6,433
$9,453
 $7,493
(a)Consists primarily of dividends payable, taxes payable, environmental remediation reserves, warranty reserves, deferred revenue and supplier contributions in the Aerospace group,segment, liabilities of discontinued operations, finance lease liabilities and insurance-related costs.
(b)Consists primarily of warranty reserves, workers’ compensation liabilities, finance lease liabilities and liabilities of discontinued operations.


M. SHAREHOLDERS’ EQUITY
Authorized Stock. Our authorized capital stock consists of 500 million shares of $1 per share par value common stock and 50 million shares of $1 per share par value preferred stock. The preferred stock is


issuable in series, with the rights, preferences and limitations of each series to be determined by our board of directors.
Shares Issued and Outstanding. On December 31, 2017,2019, we had 481,880,634 shares of common stock issued and 296,895,608289,610,336 shares of common stock outstanding, including unvested restricted stock of 817,484657,692 shares. On December 31, 2016,2018, we had 481,880,634 shares of common stock issued and 302,418,528288,698,149 shares of common stock outstanding. NoNaN shares of our preferred stock were outstanding on either date. The only changes in our shares outstanding during 20172019 and 20162018 resulted from shares repurchased in the open market and share activity under our equity compensation plans. See Note PQ for additional details.


Share Repurchases. Our board of directors from time to time authorizes management’s repurchase of outstanding shares of our common stock on the open market from time to time.market. On March 1, 2017,December 5, 2018, the board of directors authorized management to repurchase up to 10 million additional shares of the company’s outstanding stock. In 2017,2019, we repurchased 7.81.1 million of our outstanding shares for $1.5 billion.$184. On December 31, 2017, 7.62019, 6.4 million shares remained authorized by our board of directors for repurchase, approximately 3% 2% of our total shares outstanding. We repurchased 14.210.1 million shares for $2$1.8 billion in 20162018 and 22.87.8 million shares for $3.2$1.5 billion in 2015.2017.
Dividends per Share. Dividends Our board of directors declared dividends per share were $3.36of $4.08 in 20172019, $3.043.72 in 20162018and$2.763.36 in 2015. Cash2017. We paid cash dividends paid were $986of $1.2 billion in 20172019, $9111.1 billion in 20162018and$873986 in 2015.2017.
Accumulated Other Comprehensive Loss. The changes, pretax and net of tax, in each component of accumulated other comprehensive loss (AOCL)AOCL consisted of the following:
 Losses on Cash Flow HedgesUnrealized Gains on Marketable SecuritiesForeign Currency Translation AdjustmentsChanges in Retirement Plans’ Funded StatusAOCL
December 31, 2016$(345)$14
$69
$(3,125)$(3,387)
Other comprehensive income, pretax341
9
348
20
718
Provision for income tax, net(90)(4)(15)(42)(151)
Other comprehensive income, net of tax251
5
333
(22)567
December 31, 2017(94)19
402
(3,147)(2,820)
Cumulative-effect adjustments*(4)(19)
(615)(638)
Other comprehensive loss, pretax36

(300)(61)(325)
Benefit from income tax, net(9)

14
5
Other comprehensive loss, net of tax27

(300)(47)(320)
December 31, 2018(71)
102
(3,809)(3,778)
Other comprehensive loss, pretax97

186
(886)(603)
Benefit from income tax, net(24)

186
162
Other comprehensive loss, net of tax73

186
(700)(441)
December 31, 2019$2
$
$288
$(4,509)$(4,219)
* Reflects the cumulative effects of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, and ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which we adopted on January 1, 2018.
 Losses on Cash Flow HedgesUnrealized Gains on SecuritiesForeign Currency Translation AdjustmentsChanges in Retirement Plans’ Funded StatusAOCL
December 31, 2014$(173)$22
$541
$(3,322)$(2,932)
Other comprehensive loss, pretax(394)(2)(371)500
(267)
Provision for income tax, net(80)
(11)175
84
Other comprehensive loss, net of tax(314)(2)(360)325
(351)
December 31, 2015(487)20
181
(2,997)(3,283)
Other comprehensive loss, pretax191
(9)(112)(192)(122)
Benefit for income tax, net49
(3)
(64)(18)
Other comprehensive loss, net of tax142
(6)(112)(128)(104)
December 31, 2016(345)14
69
(3,125)(3,387)
Other comprehensive income, pretax341
9
348
20
718
Provision for income tax, net90
4
15
42
151
Other comprehensive income, net of tax251
5
333
(22)567
December 31, 2017$(94)$19
$402
$(3,147)$(2,820)
AmountsCurrent-period amounts reclassified out of AOCL related primarily to changes in our retirement plans’ funded status and consisted of pretax recognized net actuarial losses of $318 in 2019, $355 in 2018 and $358 in 2017, $340 in 2016 and $423 in 2015.2017. This was offset partially by pretax amortization of prior service credit of $22 in 2019, $50 in 2018 and $69 in 2017, $74 in 2016 and $72 in 2015.2017. These AOCL components are included in our net periodic pension and other post-retirement benefit cost. See Note QR for additional details.




N. DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES
We are exposed to market risk, primarily from foreign currency exchange rates, interest rates, commodity prices and investments. We may use derivative financial instruments to hedge some of these risks as described below. We had $4.3 billion in notional forward exchange contracts outstanding on December 31, 2017, and$6.3 billion on December 31, 2016. We do not use derivative financial instruments for trading or speculative purposes. We recognize derivative financial instruments on the Consolidated Balance Sheet at fair value. See Note E for additional details.


Foreign Currency Risk and Hedging Activities. Risk. Our foreign currency exchange rate risk relates to receipts from customers, payments to suppliers and inter-company transactions denominated in foreign currencies. To the extent possible, we include terms in our contracts that are designed to protect us from this risk. Otherwise, we enter into derivative financial instruments, principally foreign currency forward purchase and sale contracts, designed to offset and minimize our risk. The dollar-weighted three-yearone-year average maturity of these instruments generally matches the duration of the activities that are at risk.
We record changes in the fair value of derivative financial instruments in operating costs and expenses in the Consolidated Statement of Earnings or in other comprehensive loss (OCL) within the Consolidated Statement of Comprehensive Income depending on whether the derivative is designated and qualifies for hedge accounting. Gains and losses related to derivative financial instruments that qualify as cash flow hedges are deferred in OCL until the underlying transaction is reflected in earnings. We adjust derivative financial instruments not designated as cash flow hedges to market value each period and record the gain or loss in the Consolidated Statement of Earnings. The gains and losses on these instruments generally offset losses and gains on the assets, liabilities and other transactions being hedged. Gains and losses resulting from hedge ineffectiveness are recognized in the Consolidated Statement of Earnings for all derivative financial instruments, regardless of designation.
Net gains and losses on derivative financial instruments recognized in earnings, including gains and losses related to hedge ineffectiveness, were not material to our results of operations in any of the past three years. Net gains and losses reclassified to earnings from OCL were not material to our results of operations in any of the past three years, and we do not expect the amount of these gains and losses that will be reclassified to earnings in 2018 to be material.
We had no material derivative financial instruments designated as fair value or net investment hedges on December 31, 2017 or 2016.
Interest Rate Risk. Our financial instruments subject to interest rate risk include fixed-ratefixed- and floating-rate long-term debt obligations and variable-rate commercial paper. However, theobligations. We entered into derivative financial instruments, specifically interest rate swap contracts, to eliminate our floating-rate interest risk. The interest rate risk associated with theseour financial instruments is not material.
Commodity Price Risk. We are subject to rising labor and commodity price risk, primarily on long-term, fixed-price contracts. To the extent possible, we include terms in our contracts that are designed to protect us from these risks. Some of the protective terms included in our contracts are considered derivative financial instruments but are not accounted for separately, because they are clearly and closely related to the host contract. We have not entered into any material commodity hedging contracts but may do so as circumstances warrant. We do not believe that changes in labor or commodity prices will have a material impact on our results of operations or cash flows.
Investment Risk. Our investment policy allows for purchases of fixed-income securities with an investment-grade rating and a maximum maturity of up to five years. On December 31, 2017, 2019, we held $3 billion $902 in cash and equivalents, but held no marketable securities other than those held in trust to meet some


of our obligations under workers’ compensation and non-qualified supplemental executive retirement plans.plans. On December 31, 2017,2019, these marketable securities totaled $191 $207 and were reflected at fair value on ourthe Consolidated Balance Sheet in other current and noncurrent assets.assets. See Note E for additional details.
Hedging Activities.We had notional forward exchange and interest rate swap contracts outstanding of $5 billion and$5.8 billion on December 31, 2019 and 2018, respectively. These derivative financial instruments are cash flow hedges, and are reflected at fair value on the Consolidated Balance Sheet in other current assets and liabilities. See Note E for additional details.
Changes in fair value (gains and losses) related to derivative financial instruments that qualify as cash flow hedges are deferred in AOCL until the underlying transaction is reflected in earnings. Alternatively, gains and losses on derivative financial instruments that do not qualify for hedge accounting are recorded each period in earnings. All gains and losses from derivative financial instruments recognized in the Consolidated Statement of Earnings are presented in the same line item as the underlying transaction, either operating costs and expenses or interest expense.
Net gains and losses recognized in earnings on derivative financial instruments that do not qualify for hedge accounting were not material to our results of operations in any of the past three years. Net gains and losses reclassified to earnings from AOCL related to qualified hedges were also not material to our results of operations in any of the past three years, and we do not expect the amount of these gains and losses that will be reclassified to earnings during the next 12 months to be material.
We had no material derivative financial instruments designated as fair value or net investment hedges on December 31, 2019 or 2018.
Foreign Currency Financial Statement Translation. We translate foreign currency balance sheets from our international businesses’ functional currency (generally the respective local currency) to U.S.


dollars at the end-of-period exchange rates, and statements of earnings at the average exchange rates for each period. The resulting foreign currency translation adjustments are a component of OCL.AOCL.
We do not hedge the fluctuation in reported revenue and earnings resulting from the translation of these international operations’ results into U.S. dollars. The impact of translating our non-U.S. operations’ revenue into U.S. dollars was not material to our results of operations in any of the past three years. In addition, the effect of changes in foreign exchange rates on non-U.S. cash balances was not material in eachany of the past three years.


O. COMMITMENTS AND CONTINGENCIES
Litigation
In 2015, Electric Boat Corporation, a subsidiary of General Dynamics Corporation, received a Civil Investigative Demand from the U.S. Department of Justice regarding an investigation of potential False Claims Act violations relating to alleged failures of Electric Boat’s quality system with respect to allegedly non-conforming parts purchased from a supplier. In 2016, Electric Boat was made aware that it is a defendant in a lawsuit related to this matter which had been filed under seal in U.S. district court. Also in 2016, the Suspending and Debarring Official for the U.S. Department of the Navy issued a Show Cause Letter to Electric Boat requesting that Electric Boat respond to the official’s concerns regarding Electric Boat’s oversight and management with respect to its quality assurance systems for subcontractors and suppliers. Electric Boat responded to the Show Cause Letter and has been engaged in discussions with the U.S. government.
In the third quarter of 2019, the Department of Justice declined to intervene in the qui tam action, noting that its investigation continues, and the court unsealed the relator’s complaint. In the first quarter of 2020, the relator filed an amended complaint. Given the current status of these matters, we are unable to express a view regarding the ultimate outcome or, if the outcome is adverse, to estimate an amount or range of reasonably possible loss. Depending on the outcome of these matters, there could be a material impact on our results of operations, financial condition and cash flows.
Additionally, various other claims and legal proceedings incidental to the normal course of business are pending or threatened against us. These other matters relate to such issues as government investigations and claims, the protection of the environment, asbestos-related claims and employee-related matters. The nature of litigation is such that we cannot predict the outcome of these other matters. However, based on information currently available, we believe any potential liabilities in these other proceedings, individually or in the aggregate, will not have a material impact on our results of operations, financial condition or cash flows.
Environmental
We are subject to and affected by a variety of federal, state, local and foreign environmental laws and regulations. We are directly or indirectly involved in environmental investigations or remediation at some of our current and former facilities and third-party sites that we do not own but where we have been designated a Potentially Responsible Party (PRP) by the U.S. Environmental Protection Agency or a state environmental agency. Based on historical experience, we expect that a significant percentage of the total remediation and compliance costs associated with these facilities will continue to be allowable contract costs and, therefore, recoverable under U.S. government contracts.


As required, we provide financial assurance for certain sites undergoing or subject to investigation or remediation. We accrue environmental costs when it is probable that a liability has been incurred and the amount can be reasonably estimated. Where applicable, we seek insurance recovery for costs related to


environmental liabilities. We do not record insurance recoveries before collection is considered probable. Based on all known facts and analyses, we do not believe that our liability at any individual site, or in the aggregate, arising from such environmental conditions will be material to our results of operations, financial condition or cash flows. We also do not believe that the range of reasonably possible additional loss beyond what has been recorded would be material to our results of operations, financial condition or cash flows.
Minimum Lease Payments
Total expense under operating leases was $309 in 2017, $307 in 2016 and $283 in 2015. Operating leases are primarily for facilities and equipment. Future minimum lease payments are as follows:
Year Ended December 31
2018$258
2019215
2020148
2021118
202294
Thereafter526
Total minimum lease payments$1,359
Other
Government Contracts. As a government contractor, we are subject to U.S. government audits and investigations relating to our operations, including claims for fines, penalties, and compensatory and treble damages. We believe the outcome of such ongoing government audits and investigations will not have a material impact on our results of operations, financial condition or cash flows.
In the performance of our contracts, we routinely request contract modifications that require additional funding from the customer. Most often, these requests are due to customer-directed changes in the scope of work. While we are entitled to recovery of these costs under our contracts, the administrative process with our customer may be protracted. Based on the circumstances, we periodically file requests for equitable adjustment (REAs) that are sometimes converted into claims. In some cases, these requests are disputed by our customer. We believe our outstanding modifications, REAs and other claims will be resolved without material impact to our results of operations, financial condition or cash flows.
Letters of Credit and Guarantees. In the ordinary course of business, we have entered into letters of credit, bank guarantees, surety bonds and other similar arrangements with financial institutions and insurance carriers totaling approximately $1.2$1.5 billion on December 31, 2017.2019. In addition, from time to time and in the ordinary course of business, we contractually guarantee the payment or performance of our subsidiaries arising under certain contracts.
Aircraft Trade-ins. In connection with orders for new aircraft in funded contract backlog, our Aerospace groupsegment has outstanding options with some customers to trade in aircraft as partial consideration in their new-aircraft transaction. These trade-in commitments are generally structured to establish the fair market value of the trade-in aircraft at a date generally 45 or fewer days preceding delivery of the new aircraft to the customer. At that time, the customer is required to either exercise the option or allow its expiration. AnyOther trade-in commitments are structured to guarantee a pre-determined trade-in value. These commitments present more risk in the event of an adverse change in market conditions. In either case, any excess of the pre-established trade-in price above the fair market value at the time the new aircraft is delivered is treated as a reduction of revenue in the new-aircraft sales transaction. As of December 31, 2019, the estimated change in fair market values from the date of the commitments was not material.


Labor Agreements. Approximately On December 31, 2019, approximately one-fifth of the employees of our subsidiaries workwere working under collectively-bargainedcollectively bargained terms and conditions, including 4760 collective agreements that we have negotiated directly with unions and works councils. A number of these agreements expire within any given year. Historically, we have been successful at renegotiating these labor agreements without any material disruption of operating activities. In 2018,2020, we expect to negotiate the terms of 1528 agreements covering approximately 2,00010,000 employees. We do not expect the renegotiations will, either individually or in the aggregate, have a material impact on our results of operations, financial condition or cash flows.
Product Warranties. We provide warranties to our customers associated with certain product sales. We record estimated warranty costs in the period in which the related products are delivered. The warranty liability recorded at each balance sheet date is based generally based on the number of months of warranty coverage remaining for the products delivered and the average historical monthly warranty payments. Warranty


obligations incurred in connection with long-term production contracts are accounted for within the contract estimates at completion. Our other warranty obligations, primarily for business-jet aircraft, are included in other current and noncurrent liabilities on the Consolidated Balance Sheet.
The changes in the carrying amount of warranty liabilities for each of the past three years were as follows:
Year Ended December 312019 2018 2017
Beginning balance$480
 $467
 $474
Warranty expense258
 129
 146
Payments(105) (102) (123)
Adjustments(14) (14) (30)
Ending balance$619
 $480
 $467

Year Ended December 312017 2016 2015
Beginning balance$474
 $434
 $428
Warranty expense146
 155
 162
Payments(123) (100) (120)
Adjustments*(30) (15) (36)
Ending balance$467
 $474
 $434
* Includes a cumulative-effect adjustment on January 1, 2015, which represents the impact of adopting ASC Topic 606.


P. LEASES
We determine at its inception whether an arrangement that provides us control over the use of an asset is a lease. We recognize at lease commencement a right-of-use (ROU) asset and lease liability based on the present value of the future lease payments over the lease term. We have elected not to recognize an ROU asset and lease liability for leases with terms of 12 months or less. Some of our leases include options to extend the term of the lease for up to 30 years or to terminate the lease within 1 year. When it is reasonably certain that we will exercise the option, we include the impact of the option in the lease term for purposes of determining total future lease payments. As most of our lease agreements do not explicitly state the discount rate implicit in the lease, we use our incremental borrowing rate on the commencement date to calculate the present value of future payments.
Our leases commonly include payments that are based on the Consumer Price Index (CPI) or other similar indices. These variable lease payments are included in the calculation of the ROU asset and lease liability. Other variable lease payments, such as usage-based amounts, are excluded from the ROU asset and lease liability, and are expensed as incurred. In addition to the present value of the future lease payments, the calculation of the ROU asset also includes any deferred rent, lease pre-payments and initial direct costs of obtaining the lease, such as commissions.
In addition to the base rent, real estate leases typically contain provisions for common-area maintenance and other similar services, which are considered non-lease components for accounting purposes. For our real estate leases, we apply a practical expedient to include these non-lease components in calculating the ROU asset and lease liability. For all other types of leases, non-lease components are excluded from our ROU assets and lease liabilities and expensed as incurred.
Our leases are for office space, manufacturing facilities, and machinery and equipment. Real estate represents over 75% of our lease obligations.


The components of lease costs were as follows:
Year Ended December 312019
Finance lease cost: 
    Amortization of right-of-use assets$86
    Interest on lease liabilities24
Operating lease cost332
Short-term lease cost75
Variable lease cost14
Sublease income(13)
Total lease costs, net$518
As we have not restated prior-year information for our adoption of ASC Topic 842, total operating lease expense under ASC Topic 840 was $380 in 2018 and $309 in 2017.
Additional information related to leases was as follows:
Year Ended December 312019
Cash paid for amounts included in the measurement of lease liabilities: 
Operating cash flows from operating leases$325
Operating cash flows from finance leases24
Financing cash flows from finance leases57
Right-of-use assets obtained in exchange for lease liabilities: 
Operating leases365
Finance leases50
Additional quantitative lease information was as follows:
December 312019
Weighted-average remaining lease term:
Operating leases10.7 years
Finance leases6.1 years
Weighted-average discount rate:
Operating leases3%
Finance leases8%



The following is a reconciliation of future undiscounted cash flows to the operating and finance lease liabilities, and the related ROU assets, presented on the Consolidated Balance Sheet on December 31, 2019:
Year Ended December 31Operating Leases Finance Leases
2020$302
 $91
2021261
 83
2022212
 83
2023163
 36
2024136
 19
Thereafter790
 131
Total future lease payments1,864
 443
Less imputed interest361
 89
Present value of future lease payments1,503
 354
Less current portion of lease liabilities252
 67
Long-term lease liabilities$1,251
 $287
ROU assets$1,432
 $391

Lease liabilities are included on the Consolidated Balance Sheet in current and noncurrent other liabilities, while ROU assets are included in noncurrent other assets.
As we have not restated prior-year information for our adoption of ASC Topic 842, the gross amount of assets recorded under capital leases under ASC Topic 840 was $485 with accumulated amortization of $61 as of December 31, 2018.
On December 31, 2019, we had additional future payments on leases that had not yet commenced of $116. These leases will commence in 2020, and have lease terms of 1 to 20 years.
As we have not restated prior-year information for our adoption of ASC Topic 842, the following presents our future minimum lease payments for operating leases and capital leases under ASC Topic 840 on December 31, 2018:
Year Ended December 31Operating LeasesCapital Leases
2019$297
$92
2020234
84
2021196
78
2022154
79
2023110
30
Thereafter698
70
Total future minimum lease payments$1,689
433
Less amount representing interest*
95
Less amount representing executory costs*
19
Present value of net minimum lease payments*
319
Less current maturities of capital lease liabilities*
64
Noncurrent capital lease liabilities*
$255
* Not applicable for operating leases.



Q. EQUITY COMPENSATION PLANS
Equity Compensation Overview. We have equity compensation plans for employees, as well as for non-employee members of our board of directors. The equity compensation plans seek to provide an effective means of attracting and retaining directors, officers and key employees, and to provide them with incentives to enhance our growth and profitability. Under the equity compensation plans, awards may be granted to officers, employees or non-employee directors in common stock, options to purchase common stock, restricted shares of common stock, participation units or any combination of these.
Annually, we grant awards of stock options, restricted stock and RSUs to participants in our equity compensation plans in early March. Additionally, we may make limited ad hoc grants on a quarterly basis for new hires or promotions. We issue common stock under our equity compensation plans from treasury stock. On December 31, 2017,2019, in addition to the shares reserved for issuance upon the exercise of outstanding stock options, approximately 626 million shares have been authorized for awards that may be granted in the future.
Equity-based Compensation Expense. Equity-based compensation expense is included in G&A expenses. The following table details the components of equity-based compensation expense recognized in net earnings in each of the past three years:


Year Ended December 312019 2018 2017
Stock options$43
 $45
 $34
Restricted stock/RSUs62
 65
 46
Total equity-based compensation expense, net of tax$105
 $110
 $80

Year Ended December 312017 2016 2015
Stock options$34
 $25
 $32
Restricted stock/RSUs46
 36
 32
Total equity-based compensation expense, net of tax$80
 $61
 $64
Stock Options. Stock options granted under our equity compensation plans are issued with an exercise price at the fair value of our common stock determined by the average of the high and low stock prices as listed on the New York Stock Exchange (NYSE) on the date of grant. The majority of our outstanding stock options vest over three years, with 50% of the options vesting after two years and the remaining 50% vesting the following year, and expire 10 years after the grant date.
We recognize compensation expense related to stock options on a straight-line basis over the vesting period of the awards, net of estimated forfeitures. Estimated forfeitures are based on our historical forfeiture experience. We estimate the fair value of stock options on the date of grant using the Black-Scholes option pricing model with the following assumptions for each of the past three years:
Year Ended December 312019 2018 2017
Expected volatility19.7-20.0%
 17.6-18.2%
 17.3-19.4%
Weighted average expected volatility19.7% 17.6% 19.4%
Expected term (in months)64
 68
 68
Risk-free interest rate1.7-2.6%
 2.6-2.9%
 2.0-2.2%
Expected dividend yield2.0% 1.8% 1.8%
Year Ended December 312017 2016 2015
Expected volatility17.3-19.4%
 19.1-20.0%
 20.1-24.1%
Weighted average expected volatility19.4% 20.0% 24.0%
Expected term (in months)68
 70
 74
Risk-free interest rate2.0-2.2%
 1.5-1.6%
 1.7-1.9%
Expected dividend yield1.8% 2.0% 2.0%

We determine the above assumptions based on the following:
Expected volatility is based on the historical volatility of our common stock over a period equal to the expected term of the option.
Expected term is based on assumptions used by a set of comparable peer companies.


Risk-free interest rate is the yield on a U.S. Treasury zero-coupon issue with a remaining term equal to the expected term of the option at the grant date.
Expected dividend yield is based on our historical dividend yield.
The resulting weighted average fair value per stock option granted (in dollars) was $29.06 in 2019, $37.42 in 2018 and $33.09 in 2017, $22.11 in 2016 and $27.54 in 2015.2017. Stock option expense reduced pretax operating earnings (and on a diluted per-share basis) by $53$55 ($0.15) in 2019, $57 ($0.15) in 2018and$53 ($0.11) in 2017, $39 ($0.08) in 2016and$49 ($0.10) in 2015.2017. Compensation expense for stock options is reported as a Corporate expense for segment reporting purposes (see Note R)S). On December 31, 2017,2019, we had $71$70 of unrecognized compensation cost related to stock options, which is expected to be recognized over a weighted average period of 1.8 years.


A summary of stock option activity during 20172019 follows:
In Shares and DollarsShares Under Option  
Weighted Average
Exercise Price Per Share
Outstanding on December 31, 201810,765,195
 $143.43
Granted2,115,740
 167.92
Exercised(2,757,815) 91.34
Forfeited/canceled(355,371) 195.59
Outstanding on December 31, 20199,767,749
 $161.54
Vested and expected to vest on December 31, 20199,538,150
 $161.10
Exercisable on December 31, 20195,484,562
 $137.92

In Shares and DollarsShares Under Option  
Weighted Average
Exercise Price Per Share
Outstanding on December 31, 201610,934,621
 $108.23
Granted1,870,260
 191.84
Exercised(2,020,882) 88.75
Forfeited/canceled(163,610) 145.72
Outstanding on December 31, 201710,620,389
 $126.08
Vested and expected to vest on December 31, 201710,470,666
 $125.45
Exercisable on December 31, 20175,286,882
 $96.52
Summary information with respect to our stock options’ intrinsic value and remaining contractual term on December 31, 20172019, follows:
 Weighted Average  Remaining Contractual Term (in years) 
Aggregate Intrinsic
Value
Outstanding6.4 $242
Vested and expected to vest6.4 241
Exercisable4.8 225
 Weighted Average  Remaining Contractual Term (in years) 
Aggregate Intrinsic
Value
Outstanding5.7 $822
Vested and expected to vest5.6 817
Exercisable3.1 565

In the table above, intrinsic value is calculated as the excess, if any, of the market price of our stock on the last trading day of the year over the exercise price of the options. For stock options exercised, intrinsic value is calculated as the difference between the market price on the date of exercise and the exercise price. The total intrinsic value of stock options exercised was $244 in 2019, $147 in 2018 and $215 in 2017, $263 in 2016 and $238 in 2015.2017.
Restricted Stock/RSUs. The fair value of restricted stock and RSUs equals the average of the high and low market prices of our common stock as listed on the New York Stock ExchangeNYSE on the date of grant. Grants of restricted stock are awards of shares of common stock. Participation units represent obligations that have a value derived from or related to the value of our common stock. These include stock appreciation rights, phantom stock units and RSUs, and are payable in cash or common stock.
Restricted stock and RSUs generally vest over a three-year restriction period after the grant date, during which recipients may not sell, transfer, pledge, assign or otherwise convey their restricted shares to another party. During this period, restricted stock recipients receive cash dividends on their restricted shares and are entitled to vote those shares, while RSU recipients receive dividend-equivalent units instead of cash dividends and are not entitled to vote their RSUs or dividend-equivalent units.


We grant RSUs with aone or more performance measure derived from a non-GAAP-based management metric, return on invested capital (ROIC).measures determined by the compensation committee of the board of directors as described in our proxy statement. Depending on the company’s performance, with respect to this metric, the number of RSUs earned may be less than, equal to or greater than the original number of RSUs awarded subject to a payout range.
We generally recognize compensation expense related to restricted stock and RSUs on a straight-line basis over the vesting period of the awards. Compensation expense related to restricted stock and RSUs reduced pretax operating earnings (and on a diluted per-share basis) by $79 ($0.21) in 2019, $83 ($0.22) in 2018 and $70 ($0.15) in 2017, $56 ($0.12) in 2016 and $49 ($0.10) in 2015.2017. Compensation expense for restricted stock and RSUs is reported as an operating expense of our business groups for segment reporting purposes (see Note R)S). On December 31,


2017, 2019, we had $47$53 of unrecognized compensation cost related to restricted stock and RSUs, which is expected to be recognized over a weighted average period of 1.6 years.
A summary of restricted stock and RSU activity during 20172019 follows:
In Shares and Dollars
Shares/
Share-Equivalent 
Units
 
Weighted Average
Grant-Date Fair Value Per Share
Nonvested at December 31, 20181,262,276
 $171.62
Granted556,922
 161.43
Vested(541,997) 138.73
Forfeited(52,837) 183.81
Nonvested at December 31, 20191,224,364
 $181.11
In Shares and Dollars
Shares/
Share-Equivalent 
Units
 
Weighted Average
Grant-Date Fair Value Per Share
Nonvested at December 31, 20162,806,128
 $101.54
Granted341,558
 191.83
Vested(1,139,028) 67.80
Forfeited(25,485) 142.37
Nonvested at December 31, 20171,983,173
 $135.38

The total fair value of vesting shares was $88 in 2019, $242 in 2018 and $200 in 2017, $68 in 2016 and $76 in 2015.2017.


Q.R. RETIREMENT PLANS
We provide defined-contribution benefits to eligible employees, as well as some remaining defined-benefit pension and other post-retirement benefits. Substantially all of our plans use a December 31 measurement date consistent with our fiscal year.
Retirement Plan Summary Information
Defined-contribution Benefits. We provide eligible employees the opportunity to participate in defined-contribution savings plans (commonly known as 401(k) plans), which permit contributions on a before-tax and after-tax basis. Employees may contribute to various investment alternatives. In most of these plans, we match a portion of the employees’ contributions. Our contributions to these plans totaled $274$333 in 2017, 2019, $261302 in 20162018and$240274 in 20152017. The defined-contribution plans held approximately 2120 million and 22 million shares of our common stock, representing approximately 7% of our outstanding shares on December 31, 20172019 and 2016, respectively.2018.
Pension Benefits. We have seven12 noncontributory and five5 contributory trusteed, qualified defined-benefit pension plans covering eligible government business employees, and two2 noncontributory and four4 contributory plans covering eligible commercial business employees, including some employees of our international operations. The primary factors affecting the benefits earned by participants in our pension plans are employees’ years of service and compensation levels. Our primary government pension plans, which comprise the majority of our unfunded obligation, were closed to new salaried participants on January 1, 2007. Additionally, we made changes to these plans for certain participants effective in 2014 that limit or cease the benefits that accrue for future service. We made similar changes to our primary


commercial pension plan in 2015. We made additional changes to some of our pension plans effective in 2019 that further limit or cease the benefits that accrue for future service.
We also sponsor one1 funded and several unfunded non-qualified supplemental executive retirement plans, which provide participants with additional benefits, including excess benefits over limits imposed on qualified plans by federal tax law.
Other Post-retirement Benefits. We maintain plans that provide post-retirement healthcare and life insurance coverage for certain employees and retirees. These benefits vary by employment status, age, service and salary level at retirement. The coverage provided and the extent to which the retirees share in the cost of the program vary throughout the company. The plans provide health and life insurance benefits


only to those employees who retire directly from our service and not to those who terminate service prior to eligibility for retirement.
Contributions and Benefit Payments
It is our policy to fund our defined-benefit retirement plans in a manner that optimizes the tax deductibility and contract recovery of contributions considered within our capital deployment framework. Therefore, we may make discretionary contributions in addition to the required contributions determined in accordance with IRS regulations. We contributed $199$185 to our pension plans in 2017.2019. In 2018,2020, our required contributions are approximately $315.$470.
We maintain several tax-advantaged accounts, primarily Voluntary Employees’ Beneficiary Association (VEBA) trusts, to fund the obligations for some of our other post-retirement benefit plans. For non-funded plans, claims are paid as received. Contributions to our other post-retirement benefit plans were not material in 20172019 and are not expected to be material in 2018.2020.
We expect the following benefits to be paid from our retirement plans over the next 10 years:
 
Pension
Benefits
 Other  Post-retirement
Benefits
2020$853
 $66
2021880
 65
2022905
 64
2023929
 63
2024957
 62
2025-20295,020
 286
 
Pension
Benefits
 Other  Post-retirement
Benefits
2018$626
 $64
2019648
 64
2020676
 63
2021704
 63
2022730
 62
2023-20274,013
 292

Government Contract Considerations
Our contractual arrangements with the U.S. government provide for the recovery of contributions to our pension and other post-retirement benefit plans covering employees working in our defense business groups.segments. For non-funded plans, our government contracts allow us to recover claims paid. Following payment, these recoverable amounts are allocated to contracts and billed to the customer in accordance with the Cost Accounting Standards (CAS) and specific contractual terms. For some of these plans, the cumulative pension and other post-retirement benefit cost exceeds the amount currently allocable to contracts. To the extent we consider recovery of the cost is consideredto be probable based on our backlog and probable follow-on contracts, we defer the excess in other contract costs in other current assets on the Consolidated Balance Sheet until the cost is allocable to contracts. See Note A for a discussion of our other contract costs. For other plans, the amount allocated to contracts and included in revenue has exceeded the plans’ cumulative benefit cost. We have similarly deferred recognition of these excess earnings on the Consolidated Balance Sheet.


Defined-benefit Retirement Plan Summary Financial Information
Estimating retirement plan assets, liabilities and costs requires the extensive use of actuarial assumptions. These include the long-term rate of return on plan assets, the interest rates used to discount projected benefit payments, healthcare cost trend rates and future salary increases. Given the long-term nature of the assumptions being made, actual outcomes can and often do differ from these estimates.
Our annual benefit cost consists of threefour primary elements: the cost of benefits earned by employees for services rendered during the year, an interest charge on our plan liabilities, and an assumed return on our plan assets for the year. The annual cost also includesyear, and other gains and losses, resultingwhich result from changes in actuarial


assumptions, differences between the actual and assumed long-term rate of return on assets, and gains and losses resulting from changes we make to plan benefit terms.
We recognize an asset or liability on the Consolidated Balance Sheet equal to the funded status of each of our defined-benefit retirement plans. The funded status is the difference between the fair value of the plan’s assets These gains and its benefit obligation. Changes in plan assets and liabilities due to differences between actuarial assumptions and the actual results of the planlosses are initially deferred in OCL rather than charged to earnings. These differences areAOCL and then amortized over future years as a component of our annual benefit cost. We amortize actuarial differences under qualified plans on a straight-line basis over the average remaining service period of eligible employees. If all or almost all of a plan’s participants are inactive or are not accruing additional benefits, we amortize these differences over the average remaining life expectancy of the plan participants. We recognize the difference between the actual and expected return on plan assets for qualified plans over five years. The deferral of these differences reduces the volatility of our annual benefit cost that can result either from year-to-year changes in the assumptions or from actual results that are not necessarily representative of the long-term financial position of these plans. We recognize differences under nonqualified plans immediately.
Net annual defined-benefit pension and other post-retirement benefit cost (credit) consisted of the following:
Pension BenefitsPension Benefits
Year Ended December 312017 2016 20152019 2018 2017
Service cost$168
 $173
 $210
$111
 $180
 $168
Interest cost453
 456
 529
600
 532
 453
Expected return on plan assets(679) (713) (693)(911) (856) (679)
Recognized net actuarial loss362
 343
 417
326
 359
 362
Amortization of prior service credit(66) (68) (67)(19) (46) (66)
Net annual benefit cost$238
 $191
 $396
$107
 $169
 $238
 Other Post-retirement Benefits
Year Ended December 312019 2018 2017
Service cost$8
 $10
 $9
Interest cost35
 33
 30
Expected return on plan assets(36) (40) (34)
Recognized net actuarial gain(8) (4) (4)
Amortization of prior service credit(3) (4) (3)
Net annual benefit credit$(4) $(5) $(2)

 Other Post-retirement Benefits
Year Ended December 312017 2016 2015
Service cost$9
 $10
 $11
Interest cost30
 34
 44
Expected return on plan assets(34) (33) (32)
Recognized net actuarial (gain) loss(4) (3) 6
Amortization of prior service credit(3) (6) (5)
Net annual benefit (credit) cost$(2) $2
 $24
The service cost component of net annual benefit cost (credit) is reported separately from the other components of net annual benefit cost (credit) in accordance with ASU 2017-07.


We recognize an asset or liability on the Consolidated Balance Sheet equal to the funded status of each of our defined-benefit retirement plans. The funded status is the difference between the fair value of the plan’s assets and its benefit obligation. The following is a reconciliation of the benefit obligations and plan/trust assets, and the resulting funded status, of our defined-benefit retirement plans:

 Pension Benefits Other Post-retirement Benefits
Year Ended December 312017 2016 2017 2016
Change in Benefit Obligation       
Benefit obligation at beginning of year$(13,022) $(12,554) $(1,005) $(991)
Service cost(168) (173) (9) (10)
Interest cost(453) (456) (30) (34)
Amendments1
 
 
 (13)
Actuarial loss(1,098) (383) (42) (18)
Settlement/curtailment/other(58) (4) 27
 (3)
Benefits paid586
 548
 63
 64
Benefit obligation at end of year$(14,212) $(13,022) $(996) $(1,005)
Change in Plan/Trust Assets       
Fair value of assets at beginning of year$8,980
 $8,608
 $499
 $527
Actual return on plan assets1,469
 694
 82
 9
Employer contributions199
 208
 3
 5
Settlement/curtailment/other56
 5
 
 
Benefits paid(574) (535) (43) (42)
Fair value of assets at end of year$10,130
 $8,980
 $541
 $499
Funded status at end of year$(4,082) $(4,042) $(455) $(506)

 Pension Benefits Other Post-retirement Benefits
Year Ended December 312019 2018 2019 2018
Change in Benefit Obligation       
Benefit obligation at beginning of year$(15,720) $(14,212) $(935) $(996)
Service cost(111) (180) (8) (10)
Interest cost(600) (532) (35) (33)
Acquisitions
 (2,758) 
 (62)
Amendments(3) 15
 (8) 
Actuarial (loss) gain(2,446) 1,183
 (101) 78
Settlement/curtailment/other(33) 23
 (4) 21
Benefits paid806
 741
 64
 67
Benefit obligation at end of year$(18,107) $(15,720) $(1,027) $(935)
Change in Plan/Trust Assets       
Fair value of assets at beginning of year$11,532
 $10,130
 $570
 $541
Actual return on plan assets2,206
 (749) 117
 (4)
Acquisitions
 2,328
 
 77
Employer contributions185
 571
 2
 1
Settlement/curtailment/other39
 (26) 
 
Benefits paid(785) (722) (45) (45)
Fair value of assets at end of year$13,177
 $11,532
 $644
 $570
Funded status at end of year$(4,930) $(4,188) $(383) $(365)

The overall increase in our pension benefit obligation for the year ended December 31, 2019, was due primarily to actuarial losses created by the change in the weighted-average discount rate, which decreased from 4.28% at December 31, 2018, to 3.19% at December 31, 2019.
The overall increases in our pension benefit obligation and assets for the year ended December 31, 2018, were due primarily to the acquisition of CSRA retirement plans. The increase in the obligation due to acquired plans was offset partially by actuarial gains created by the change in the weighted-average discount rate, which increased from 3.69% at December 31, 2017, to 4.28% at December 31, 2018.
Amounts recognized on the Consolidated Balance Sheet consisted of the following:
 Pension Benefits Other Post-retirement Benefits
December 312019 2018 2019 2018
Noncurrent assets$61
 $67
 $94
 $74
Current liabilities(166) (131) (130) (141)
Noncurrent liabilities(4,825) (4,124) (347) (298)
Net liability recognized$(4,930) $(4,188) $(383) $(365)
 Pension Benefits Other Post-retirement Benefits
December 312017 2016 2017 2016
Noncurrent assets$133
 $138
 $33
 $10
Current liabilities(145) (132) (150) (171)
Noncurrent liabilities(4,070) (4,048) (338) (345)
Net liability recognized$(4,082) $(4,042) $(455) $(506)

Amounts deferred in AOCL for our retirement plans consisted of the following:
 Pension Benefits Other Post-retirement Benefits
December 312019 2018 2019 2018
Net actuarial loss (gain)$5,784
 $4,959
 $(9) $(37)
Prior service (credit) cost(73) (95) 12
 1
Total amount recognized in AOCL, pretax$5,711
 $4,864
 $3
 $(36)
 Pension Benefits Other Post-retirement Benefits
December 312017 2016 2017 2016
Net actuarial loss (gain)$4,899
 $4,947
 $(5) $36
Prior service credit(124) (190) (3) (6)
Total amount recognized in AOCL, pretax$4,775
 $4,757
 $(8) $30




The following is a reconciliation of the change in AOCL for our defined-benefit retirement plans:
 Pension Benefits Other Post-retirement Benefits
Year Ended December 312019 2018 2019 2018
Net actuarial loss (gain)$1,151
 $422
 $20
 $(34)
Prior service credit (cost)3
 (15) 8
 
Amortization of:       
Net actuarial (loss) gain from prior
    years
(326) (359) 8
 4
Prior service credit19
 46
 3
 4
Other*
 (5) 
 (2)
Change in AOCL, pretax$847
 $89
 $39
 $(28)
 Pension Benefits Other Post-retirement Benefits
Year Ended December 312017 2016 2017 2016
Net actuarial loss (gain)$308
 $402
 $(6) $42
Prior service cost(1) 
 
 13
Amortization of:       
Net actuarial (loss) gain from prior years(362) (343) 4
 3
Prior service credit66
 68
 3
 6
Other*7
 1
 (39) 
Change in AOCL, pretax$18
 $128
 $(38) $64

* Includes foreign exchange translation, curtailment and other adjustments.
The following table represents amounts deferred in AOCL on the Consolidated Balance Sheet on December 31, 2017, that we expect to recognize in our retirement benefit cost in 2018:
 Pension
Benefits
 Other  Post-retirement
Benefits
Net actuarial loss (gain)$387
 $(4)
Prior service credit(44) (3)
A pension plan’s funded status is the difference between the plan’s assets and its projected benefit obligation (PBO). The PBO is the present value of future benefits attributed to employee services rendered to date, including assumptions about future compensation levels. On December 31, 2019 and 2018, most of our pension plans had a PBO that exceeded the plans’ assets. Summary information for those plans follows:
December 312019 2018
PBO$(17,651) $(15,354)
Fair value of plan assets12,673
 11,116

A pensionretirement plan’s accumulated benefit obligation (ABO) is the present value of future benefits attributed to employee services rendered to date, excluding assumptions about future compensation levels.levels for pension plans. The ABO for all defined-benefit pension plans was $13.9$17.8 billion and $12.7$15.5 billion on December 31, 20172019 and 2016,2018, respectively. The ABO for all other post-retirement plans was $1 billion and $935 on December 31, 2019 and 2018, respectively. On December 31, 20172019 and 2016, some2018, most of our pensionretirement plans had an ABO that exceeded the plans’ assets. Summary information for those plans follows:
 Pension Benefits Other Post-retirement Benefits
December 312019 2018 2019 2018
ABO$(17,080) $(14,856) $(783) $(709)
Fair value of plan assets12,354
 10,832
 301
 264
December 312017 2016
PBO$(13,660) $(12,817)
ABO(13,398) (12,557)
Fair value of plan assets9,526
 8,722

Retirement Plan Assumptions
We calculate the plan assets and liabilities for a given year and the net annual benefit cost for the subsequent year using assumptions determined as of December 31 of the year in question.



The following table summarizes the weighted average assumptions used to determine our benefit obligations:
Assumptions on December 312019 2018
Pension Benefits   
Benefit obligation discount rate3.19% 4.28%
Rate of increase in compensation levels2.68% 2.79%
Other Post-retirement Benefits   
Benefit obligation discount rate3.18% 4.24%
Healthcare cost trend rate:   
Trend rate for next year6.00% 6.50%
Ultimate trend rate5.00% 5.00%
Year rate reaches ultimate trend rate2024
 2024
Assumptions on December 312017 2016
Pension Benefits   
Benefit obligation discount rate3.62% 4.19%
Rate of increase in compensation levels2.82% 2.92%
Other Post-retirement Benefits   
Benefit obligation discount rate3.64% 4.11%
Healthcare cost trend rate:   
Trend rate for next year6.50% 6.50%
Ultimate trend rate5.00% 5.00%
Year rate reaches ultimate trend rate2024
 2024

The following table summarizes the weighted average assumptions used to determine our net annual benefit cost:
Assumptions for Year Ended December 312019 2018 2017
Pension Benefits     
Discount rates:     
Benefit obligation4.28% 3.69% 4.19%
Service cost3.81% 3.51% 4.13%
Interest cost3.92% 3.34% 3.56%
Expected long-term rate of return on assets7.46% 7.45% 7.43%
Rate of increase in compensation levels2.77% 2.79% 2.90%
Other Post-retirement Benefits     
Discount rates:     
Benefit obligation4.24% 3.64% 4.11%
Service cost4.23% 3.79% 4.34%
Interest cost3.88% 3.27% 3.43%
Expected long-term rate of return on assets6.84% 7.75% 7.76%
Assumptions for Year Ended December 312017 2016 2015
Pension Benefits     
Discount rates:     
Benefit obligation4.19% 4.46% 4.10%
Service cost4.13% 4.42% *
Interest cost3.56% 3.71% *
Expected long-term rate of return on assets7.43% 8.14% 8.15%
Rate of increase in compensation levels2.90% 3.39% 3.43%
Other Post-retirement Benefits     
Discount rates:     
Benefit obligation4.11% 4.35% 4.03%
Service cost4.34% 4.52% *
Interest cost3.43% 3.53% *
Expected long-term rate of return on assets7.76% 7.81% 8.03%
* Not applicable as we changed to the spot rate approach beginning in 2016 as further described below.
We base the discount rates on a current yield curve developed from a portfolio of high-quality, fixed-income investments with maturities consistent with the projected benefit payout period. Beginning in 2016, we refined the method used to determine the service and interest cost components of our net annual benefit cost. Previously, the cost was determined using a single weighted-average discount rate derived from the yield curve described above. Under the refined method, known asWe use the spot rate approach we useto identify individual spot rates along the yield curve that correspond with the timing of each service cost and discounted benefit obligation payment. We believe this change provides a more precise measurement of service and interest costs by improving the correlation between projected service cost and discounted benefit obligation cash outflows and corresponding spot rates on the yield curve. We accounted for this change prospectively as a change in accounting estimate.payment.
We determine the long-term raterates of return on assets based on consideration of historical and forward-looking returns and the current and expected asset allocation strategy. In 2017, we We decreased the expected long-term rate of return on assets in our primary U.S. government and commercial pension plans by 75


basis points beginning in 2017, and we decreased the expected long-term rates of return on assets in our primary U.S. other post-retirement benefit plans by 100 basis points beginning in 2019, both following an assessment of the historical and expected long-term returns of our various asset classes.
Retirement plan assumptions are based on our best judgment, including consideration of current and future market conditions. Changes in these estimates impact future pension and other post-retirement benefit cost. As discussed above, we defer recognition of the cumulative benefit cost for our government plans in


excess of costs allocated to contracts and included in revenue. Therefore, the impact of annual changes in financial reporting assumptions on thecost for these plans does not immediately affect our operating results. For our U.S. pension plans that represent the majority of our total obligation, the following hypothetical changes in the discount rates and expected long-term rates of return on plan assets would have had the following impact in 2017:
 
Increase
25 Basis Points
 
Decrease
25 Basis Points
Increase (decrease) to net pension cost from:   
Change in discount rates$(28) $30
Change in long-term rates of return on plan assets(21) 21
A 25-basis-point change in these assumed rates would not have had a measurable impact on the benefit cost for our other post-retirement plans in 2017. For our healthcare plans, the effect of a 1% increase or decrease in the assumed healthcare cost trend rate on the 2017 net annual benefit cost is $4 and ($3), respectively, and the effect on the December 31, 2017, accumulated other post-retirement benefit obligation is $75 and ($60), respectively.


Plan Assets
A committee of our board of directors is responsible for the strategic oversight of our defined-benefit retirement plan assets held in trust. Management develops investment policies and provides oversight of a third-party investment manager who reports to the committee on a regular basis. The outsourced third-party investment manager develops investment strategies and makes all day-to-day investment decisions related to defined-benefit retirement plan assets in accordance with our investment policy and target allocation percentages.
Our investment policy endeavors to strike the appropriate balance among capital preservation, asset growth and current income. The objective of our investment policy is to generate future returns consistent with our assumed long-term raterates of return used to determine our benefit obligations and net annual benefit cost. Target allocation percentages vary over time depending on the perceived risk and return potential of various asset classes and market conditions. At the end of 2017,2019, our asset allocation policy ranges were:
Equities48-68%
Fixed income20-48%
Cash0-5%
Other asset classes0-16%

More than 90% of our pension plan assets are held in a single trust for our primary U.S. government and commercial pension plans. On December 31, 20172019, the trust was invested largely in publicly traded equities, fixed-income securities and commingled funds comprised of equity securities. The trust also invests in other asset classes consistent with our investment policy. Our investments in equity assets include U.S. and international securities and equity funds. Our investments in fixed-income assets include U.S. Treasury and U.S. agency securities, corporate bonds, mortgage-backed securities and other asset-backed


securities. Our investment policy allows the use of derivative instruments when appropriate to reduce anticipated asset volatility, to gain exposure to an asset class or to adjust the duration of fixed-income assets.
Assets for our non-U.S. pension plans are held in trusts in the countries in which the related operations reside. Our non-U.S. operations maintain investment policies for their individual plans based on country-specific regulations. The non-U.S. plan assets are invested primarily in commingled funds comprised of equity and fixed-income securities.
We hold assets in VEBA trusts for some of our other post-retirement benefit plans. These assets are managed by a third-party investment manager with oversight by management and are generally invested in publicly traded equities, fixed-income securities and commingled funds comprised of equity and fixed-income securities. Our asset allocation strategy for the VEBA trusts considers potential fluctuations in our other post-retirement benefit obligation, the taxable nature of certain VEBA trusts, tax deduction limits on contributions and the regulatory environment.
Our retirement plan assets are reported at fair value. See Note E for a discussion of the hierarchy for determining fair value. Our Level 1 assets include investments in publicly traded equity securities. These securities are actively traded and valued using quoted prices for identical securities from the market exchanges. Our Level 2 assets consist of fixed-income securities and commingled funds whose underlying investments are valued using observable marketplace inputs. The fair value of plan assets invested in fixed-income securities is generally determined under a market approach using valuation models that useincorporate observable inputs such as interest rates, bond yields low-volume market quotes and quoted prices for similar assets. Our plan assets that are invested in commingled funds are valued using a unit price or net asset value (NAV) that is based on the underlying investments of the fund. Our Level 3 assets include real estate funds, insurance deposit contracts, retirement annuity contracts and direct private equity investments.
Certain investments valued using NAV as a practical expedient are excluded from the fair value hierarchy. These investments are redeemable at NAV on a monthly or quarterly basis and have redemption


notice periods of up to 90 days. We had noThe unfunded commitments related to these investments were not material on December 31, 20172019 or 2016.


2018.
The fair value of our pension plan assets by investment category and the corresponding level within the fair value hierarchy were as follows:



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
Asset CategoryDecember 31, 2017December 31, 2019
Cash and equivalents$48
 $
 $48
 $
$56
 $
 $56
 $
Equity securities (a):              
U.S. companies770
 770
 
 
958
 958
 
 
Non-U.S. companies97
 97
 
 
128
 128
 
 
Private equity investments18
 
 
 18
26
 
 
 26
Fixed-income securities:              
Corporate bonds (b)2,163
 
 2,163
 
Treasury securities1,361
 
 1,361
 
1,855
 
 1,855
 
Corporate bonds (b)1,604
 
 1,604
 
Commingled funds:              
Equity funds5,018
 
 5,018
 
6,494
 
 6,494
 
Fixed-income funds325
 
 325
 
365
 
 365
 
Real estate funds51
 
 
 51
84
 
 
 84
Other investments:              
Insurance deposit contracts120
 
 
 120
137
 
 
 137
Retirement annuity contracts35
 
 
 35
Total plan assets in fair value hierarchy$9,412
 $867
 $8,356
 $189
$12,301
 $1,086
 $10,933
 $282
Plan assets measured using NAV as a practical expedient (c):              
Real estate funds443
      
Hedge funds328
      419
      
Real estate funds390
      
Equity funds14
      
Total pension plan assets$10,130
 
 
 
$13,177
 
 
 
(a)No single equity holding amounted to more than 1% of the total fair value.
(b)Our corporate bond investments had an average rating of A+.A.
(c)Investments measured at fair value using NAV as a practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.






Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 

Significant
Unobservable
Inputs
(Level 3)
Asset CategoryDecember 31, 2016December 31, 2018
Cash and equivalents$71
 $10
 $61
 $
$73
 $
 $73
 $
Equity securities (a):              
U.S. companies786
 786
 
 
732
 732
 
 
Non-U.S. companies74
 74
 
 
117
 117
 
 
Private equity investments13
 
 
 13
20
 
 
 20
Fixed-income securities:              
Corporate bonds (b)1,600
 
 1,600
 
Treasury securities239
 
 239
 
1,410
 
 1,410
 
Corporate bonds (b)2,115
 
 2,115
 
Commingled funds:              
Equity funds4,285
 
 4,285
 
5,243
 
 5,243
 
Fixed-income funds567
 
 567
 
624
 
 624
 
Real estate funds42
 
 
 42
68
 
 
 68
Other investments:              
Insurance deposit contracts109
 
 
 109
128
 
 
 128
Total plan assets in fair value hierarchy$8,301
 $870
 $7,267
 $164
$10,015
 $849
 $8,950
 $216
Plan assets measured using NAV as a practical expedient (c):              
Hedge funds314
      910
      
Real estate funds365
      420
      
Fixed-income funds101
      
Equity funds86
      
Total pension plan assets$8,980
 

 

 

$11,532
 

 

 

(a)No single equity holding amounted to more than 1% of the total fair value.
(b)Our corporate bond investments had an average rating of BBB+A+.
(c)Investments measured at fair value using NAV as a practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.



The fair value of our other post-retirement benefit plan assets by category and the corresponding level within the fair value hierarchy were as follows:



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
Asset Category (a)December 31, 2017December 31, 2019
Cash equivalents$18
 $
 $18
Cash and equivalents$18
 $
 $18
Equity securities70
 70
 
92
 92
 
Fixed-income securities89
 
 89
122
 
 122
Commingled funds:          
Equity funds260
 
 260
288
 
 288
Fixed-income funds99
 
 99
113
 
 113
Real estate funds2
 2
 
2
 2
 
Total plan assets in fair value hierarchy$538
 $72
 $466
$635
 $94
 $541
Plan assets measured using NAV as a practical expedient (b):          
Real estate funds5
    
Hedge funds1
    4
    
Real estate funds2
    
Total other post-retirement plan assets$541
 
 
Total other post-retirement benefit plan assets$644
 
 
(a)    We had no Level 3 investments on December 31, 2017.2019.
(b)    Investments measured at fair value using NAV as a practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)



Fair
Value
 
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
Asset Category (a)December 31, 2016December 31, 2018
Cash equivalents$10
 $
 $10
Cash and equivalents$23
 $
 $23
Equity securities69
 69
 
80
 80
 
Fixed-income securities88
 
 88
87
 
 87
Commingled funds:          
Equity funds236
 
 236
237
 
 237
Fixed-income funds92
 
 92
111
 
 111
Real estate funds2
 2
 
2
 2
 
Total plan assets in fair value hierarchy$497
 $71
 $426
$540
 $82
 $458
Plan assets measured using NAV as a practical expedient (b):          
Hedge funds1
    22
    
Equity funds3
    
Fixed-income funds3
    
Real estate funds1
    2
    
Total other post-retirement plan assets$499
 

 

Total other post-retirement benefit plan assets$570
 

 

(a)    We had no Level 3 investments on December 31, 2016.2018.
(b)    Investments measured at fair value using NAV as a practical expedient are not classified in the fair value hierarchy. The fair value amounts presented in this table for these investments are included to permit reconciliation of the fair value hierarchy to the total plan assets.



Changes in our Level 3 retirement plan assets during 20172019 and 20162018 were as follows:
 Private Equity Investments Real Estate Funds Insurance Deposits Contracts Retirement Annuity Contracts 
Total
Level 3 Assets
December 31, 2017$18
 $51
 $120
 $
 $189
Actual return on plan assets:        
Unrealized losses, net
 (1) 
 
 (1)
Realized gains, net
 
 3
 
 3
Purchases, sales and settlements, net2
 18
 5
 
 25
December 31, 201820
 68
 128
 
 216
Actual return on plan assets:
 
 
   
Unrealized gains, net5
 6
 6
 
 17
Purchases, sales and settlements, net1
 10
 3
 35
 49
December 31, 2019$26
 $84
 $137
 $35
 $282

 Private Equity Investments Real Estate Funds Insurance Deposits Contracts Total Level 3 Assets
December 31, 2015$12
 $42
 $103
 $157
Actual return on plan assets:      
Unrealized losses, net1
 
 (2) (1)
Realized gains, net
 
 3
 3
Purchases, sales and settlements, net
 
 5
 5
December 31, 201613
 42
 109
 164
Actual return on plan assets:
 
 
 
Unrealized gains, net1
 4
 4
 9
Realized gains, net
 
 2
 2
Purchases, sales and settlements, net4
 5
 5
 14
December 31, 2017$18
 $51
 $120
 $189


R. BUSINESS GROUPS. SEGMENT INFORMATION
We operate in four business groups:have 5 operating segments: Aerospace, Combat Systems, Information Technology, Mission Systems and Technology, and Marine Systems. We organize our business groupssegments in accordance with the nature of products and services offered. We measure each group’ssegment’s profitability based on operating earnings. As a result, we do not allocate net interest, other income and expense items, and income taxes to our business groups.segments.
Summary financial information for each of our business groupssegments follows:
 Revenue Operating Earnings Revenue from U.S. Government
Year Ended December 31201920182017 201920182017 201920182017
Aerospace$9,801
$8,455
$8,129
 $1,532
$1,490
$1,577
 $498
$334
$231
Combat Systems7,007
6,241
5,949
 996
962
937
 4,048
3,228
3,084
Information
    Technology
8,422
8,269
4,410
 628
608
373
 8,240
8,025
4,164
Mission Systems4,937
4,726
4,481
 683
659
638
 3,994
3,774
3,629
Marine Systems9,183
8,502
8,004
 785
761
685
 9,027
8,245
7,913
Corporate


 24
(23)26
 


Total$39,350
$36,193
$30,973
 $4,648
$4,457
$4,236
 $25,807
$23,606
$19,021

 Revenue Operating Earnings Revenue from U.S. Government
Year Ended December 31201720162015 201720162015 201720162015
Aerospace$8,129
$7,815
$9,177
 $1,593
$1,407
$1,807
 $231
$361
$104
Combat Systems5,949
5,530
5,643
 937
831
886
 3,084
2,614
2,590
Information Systems and Technology8,891
9,144
8,929
 1,011
941
895
 7,793
7,984
7,821
Marine Systems8,004
8,072
8,032
 685
595
748
 7,913
7,717
7,463
Corporate*


 (49)(40)(41) 


Total$30,973
$30,561
$31,781
 $4,177
$3,734
$4,295
 $19,021
$18,676
$17,978
* Corporate operating results consist primarily ofhave two primary components: pension and other post-retirement benefit income, and stock option expense. We are required to report the non-service cost components of pension and other post-retirement benefit cost (e.g., interest cost) in other income (expense) in the Consolidated Statement of Earnings. As described in Note R, in our defense segments, pension and other post-retirement benefit costs are recoverable contract costs. Therefore, the non-service cost components are included in the operating results of these segments, but an offset is reported in Corporate. Corporate operating results in 2018 also included one-time charges of approximately $45 associated with the costs to complete the CSRA acquisition.


The following is additional summary financial information for each of our segments:
 Identifiable Assets Capital Expenditures Depreciation and Amortization
Year Ended December 31201920182017 201920182017 201920182017
Aerospace$12,324
$11,220
$10,126
 $138
$194
$132
 $178
$154
$147
Combat Systems11,220
9,853
9,846
 109
91
84
 85
87
86
Information
    Technology
14,248
14,159
3,021
 147
62
16
 377
333
32
Mission Systems6,205
5,984
5,856
 75
49
47
 60
65
60
Marine Systems3,918
3,130
2,906
 449
243
123
 122
116
109
Corporate*926
1,062
3,291
 69
51
26
 7
8
7
Total$48,841
$45,408
$35,046
 $987
$690
$428
 $829
$763
$441
 Identifiable Assets Capital Expenditures Depreciation and Amortization
Year Ended December 31201720162015 201720162015 201720162015
Aerospace$10,126
$9,792
$9,411
 $132
$125
$210
 $147
$153
$146
Combat Systems9,846
8,885
7,810
 84
71
79
 86
86
91
Information Systems and Technology8,877
8,445
8,575
 63
97
73
 92
103
131
Marine Systems2,906
3,063
3,030
 123
92
166
 109
105
106
Corporate*3,291
2,987
3,712
 26
7
41
 7
6
7
Total$35,046
$33,172
$32,538
 $428
$392
$569
 $441
$453
$481

* Corporate identifiable assets are primarily cash and equivalents.



See Note BC for additional revenue information by business group.segment.
The following table presents our revenue by geographic area based on the location of our customers:
Year Ended December 312019 2018 2017
North America:     
United States$31,982
 $28,578
 $23,519
Other852
 755
 915
Total North America32,834
 29,333
 24,434
Europe2,808
 2,772
 2,558
Asia/Pacific1,670
 2,252
 2,011
Africa/Middle East1,739
 1,565
 1,655
South America299
 271
 315
Total revenue$39,350
 $36,193
 $30,973

Year Ended December 312017 2016 2015
North America:     
United States$23,519
 $23,160
 $23,480
Other915
 709
 1,121
Total North America24,434
 23,869
 24,601
Europe2,558
 2,152
 2,760
Asia/Pacific2,011
 1,650
 1,589
Africa/Middle East1,655
 2,617
 2,426
South America315
 273
 405
Total revenue$30,973
 $30,561
 $31,781
Our revenue from non-U.S. operations was $4.4 billion in 2019, $4.2 billion in 2018 and $3.7 billion in 2017,2016 and 2015, and earnings from continuing operations before income taxes from non-U.S. operations were $600 in 2019, $578 in 2018 and $550 in 2017, $530 in 2016 and $546 in 2015.2017. The long-lived assets associated with these operations were 5%4% of our total long-lived assets on December 31, 2017, 20162019, 3% on December 31,2018, and 2015.5% on December 31, 2017.


S.T. CONDENSED CONSOLIDATING FINANCIAL STATEMENTS
The fixed-ratefixed- and floating-rate notes described in Note K are fully and unconditionally guaranteed on an unsecured, joint and several basis by several of our 100%-owned subsidiaries (the guarantors). The following condensed consolidating financial statements illustrate the composition of the parent, the guarantors on a combined basis (each guarantor together with its majority-owned subsidiaries) and all other subsidiaries on a combined basis.




CONDENSED CONSOLIDATING STATEMENTSSTATEMENT OF EARNINGS


Year Ended December 31, 2019Parent
Guarantors on a
Combined Basis
Other Subsidiaries
on a Combined Basis
Consolidating
Adjustments
Total
Consolidated
Revenue$
$30,566
$8,784
$
$39,350
Cost of sales99
(25,120)(7,270)
(32,291)
G&A(75)(1,725)(611)
(2,411)
Operating earnings24
3,721
903

4,648
Interest, net(426)1
(35)
(460)
Other, net(60)15
59

14
Earnings before income tax(462)3,737
927

4,202
Provision for income tax, net117
(626)(209)
(718)
Equity in net earnings of subsidiaries3,829


(3,829)
Net earnings$3,484
$3,111
$718
$(3,829)$3,484
Comprehensive income$3,043
$3,083
$957
$(4,040)$3,043
      
Year Ended December 31, 2018     
Revenue$
$28,132
$8,061
$
$36,193
Cost of sales67
(22,841)(6,704)
(29,478)
G&A(90)(1,638)(530)
(2,258)
Operating earnings(23)3,653
827

4,457
Interest, net(326)
(30)
(356)
Other, net(81)12
53

(16)
Earnings before income tax(430)3,665
850

4,085
Provision for income tax, net116
(677)(166)
(727)
Discontinued operations, net of tax(13)


(13)
Equity in net earnings of subsidiaries3,672


(3,672)
Net earnings$3,345
$2,988
$684
$(3,672)$3,345
Comprehensive income$3,025
$2,992
$305
$(3,297)$3,025
      
Year Ended December 31, 2017     
Revenue$
$26,933
$4,040
$
$30,973
Cost of sales76
(21,695)(3,112)
(24,731)
G&A(48)(1,643)(315)
(2,006)
Operating earnings28
3,595
613

4,236
Interest, net(97)1
(7)
(103)
Other, net(72)12
4

(56)
Earnings before income tax(141)3,608
610

4,077
Provision for income tax, net154
(1,262)(57)
(1,165)
Equity in net earnings of subsidiaries2,899


(2,899)
Net earnings$2,912
$2,346
$553
$(2,899)$2,912
Comprehensive income$3,479
$2,336
$1,158
$(3,494)$3,479


Year Ended December 31, 2017Parent
Guarantors on a
Combined Basis
Other Subsidiaries
on a Combined Basis
Consolidating
Adjustments
Total
Consolidated
Revenue$
$26,933
$4,040
$
$30,973
Cost of sales(6)21,684
3,108

24,786
G&A53
1,642
315

2,010
Operating earnings(47)3,607
617

4,177
Interest, net(97)1
(7)
(103)
Other, net3



3
Earnings before income tax(141)3,608
610

4,077
Provision for income tax, net(154)1,262
57

1,165
Equity in net earnings of subsidiaries2,899


(2,899)
Net earnings$2,912
$2,346
$553
$(2,899)$2,912
Comprehensive income$3,479
$2,336
$1,158
$(3,494)$3,479
      
Year Ended December 31, 2016     
Revenue$
$26,573
$3,988
$
$30,561
Cost of sales
21,785
3,102

24,887
G&A39
1,585
316

1,940
Operating earnings(39)3,203
570

3,734
Interest, net(91)(2)2

(91)
Other, net12
(4)5

13
Earnings before income tax(118)3,197
577

3,656
Provision for income tax, net(121)1,055
43

977
Discontinued operations, net of tax(107)


(107)
Equity in net earnings of subsidiaries2,676


(2,676)
Net earnings$2,572
$2,142
$534
$(2,676)$2,572
Comprehensive income$2,468
$2,112
$543
$(2,655)$2,468
      
Year Ended December 31, 2015     
Revenue$
$27,730
$4,051
$
$31,781
Cost of sales(6)22,385
3,154

25,533
G&A46
1,610
297

1,953
Operating earnings(40)3,735
600

4,295
Interest, net(89)(1)7

(83)
Other, net4
2
1

7
Earnings before income tax(125)3,736
608

4,219
Provision for income tax, net(151)1,202
132

1,183
Equity in net earnings of subsidiaries3,010


(3,010)
Net earnings$3,036
$2,534
$476
$(3,010)$3,036
Comprehensive income$2,685
$2,745
$(193)$(2,552)$2,685



CONDENSED CONSOLIDATING BALANCE SHEET


December 31, 2019Parent*
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
      
ASSETS     
Current assets:     
Cash and equivalents$601
$
$301
$
$902
Accounts receivable
1,188
2,356

3,544
Unbilled receivables
2,826
5,031

7,857
Inventories
6,191
115

6,306
Other current assets(300)989
482

1,171
Total current assets301
11,194
8,285

19,780
Noncurrent assets:     
PP&E346
7,741
1,674

9,761
Accumulated depreciation of PP&E(91)(4,260)(935)
(5,286)
Intangible assets, net
210
2,105

2,315
Goodwill
7,960
11,717

19,677
Other assets203
1,278
1,113

2,594
Net investment in subsidiaries29,693


(29,693)
Total noncurrent assets30,151
12,929
15,674
(29,693)29,061
Total assets$30,452
$24,123
$23,959
$(29,693)$48,841
      
LIABILITIES AND SHAREHOLDERS’ EQUITY     
Current liabilities:     
Short-term debt and current portion of long-term debt$2,497
$2
$421
$
$2,920
Customer advances and deposits
4,174
2,974

7,148
Other current liabilities487
4,391
1,855

6,733
Total current liabilities2,984
8,567
5,250

16,801
Noncurrent liabilities:     
Long-term debt8,928
67
15

9,010
Other liabilities4,963
2,995
1,495

9,453
Total noncurrent liabilities13,891
3,062
1,510

18,463
Total shareholders’ equity13,577
12,494
17,199
(29,693)13,577
Total liabilities and shareholders’ equity$30,452
$24,123
$23,959
$(29,693)$48,841

*Includes the funded status of the company’s primary domestic qualified defined-benefit pension plans as the Parent has the ultimate obligation for the plans.


December 31, 2017Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
      
ASSETS     
Current assets:     
Cash and equivalents$1,930
$
$1,053
$
$2,983
Accounts receivable
1,259
2,358

3,617
Unbilled receivables
2,547
2,693

5,240
Inventories
5,216
87

5,303
Other current assets351
461
373

1,185
Total current assets2,281
9,483
6,564

18,328
Noncurrent assets:     
PP&E221
6,779
1,237

8,237
Accumulated depreciation of PP&E(75)(3,869)(776)
(4,720)
Intangible assets, net
287
415

702
Goodwill
8,320
3,594

11,914
Other assets199
232
154

585
Investment in subsidiaries44,887


(44,887)
Total noncurrent assets45,232
11,749
4,624
(44,887)16,718
Total assets$47,513
$21,232
$11,188
$(44,887)$35,046
      
LIABILITIES AND SHAREHOLDERS’ EQUITY     
Current liabilities:     
Short-term debt and current portion of long-term debt$
$1
$1
$
$2
Customer advances and deposits
4,180
2,812

6,992
Other current liabilities561
3,758
1,786

6,105
Total current liabilities561
7,939
4,599

13,099
Noncurrent liabilities:     
Long-term debt3,950
21
9

3,980
Other liabilities2,451
3,473
608

6,532
Total noncurrent liabilities6,401
3,494
617

10,512
Intercompany29,116
(28,494)(622)

Shareholders’ equity:     
Common stock482
6
2,126
(2,132)482
Other shareholders’ equity10,953
38,287
4,468
(42,755)10,953
Total shareholders’ equity11,435
38,293
6,594
(44,887)11,435
Total liabilities and shareholders’ equity$47,513
$21,232
$11,188
$(44,887)$35,046




CONDENSED CONSOLIDATING BALANCE SHEET
 
December 31, 2018Parent*
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
      
ASSETS     
Current assets:     
Cash and equivalents$460
$
$503
$
$963
Accounts receivable
1,171
2,588

3,759
Unbilled receivables
2,758
3,818

6,576
Inventories
5,855
122

5,977
Other current assets(251)647
518

914
Total current assets209
10,431
7,549

18,189
Noncurrent assets:     
PP&E273
7,177
1,522

8,972
Accumulated depreciation of PP&E(83)(4,071)(840)
(4,994)
Intangible assets, net
251
2,334

2,585
Goodwill
8,031
11,563

19,594
Other assets195
274
593

1,062
Net investment in subsidiaries27,887


(27,887)
Total noncurrent assets28,272
11,662
15,172
(27,887)27,219
Total assets$28,481
$22,093
$22,721
$(27,887)$45,408
      
LIABILITIES AND SHAREHOLDERS’ EQUITY     
Current liabilities:     
Short-term debt and current portion of long-term debt$850
$
$123
$
$973
Customer advances and deposits
4,541
2,729

7,270
Other current liabilities552
3,944
2,000

6,496
Total current liabilities1,402
8,485
4,852

14,739
Noncurrent liabilities:     
Long-term debt11,398
39
7

11,444
Other liabilities3,949
2,115
1,429

7,493
Total noncurrent liabilities15,347
2,154
1,436

18,937
Total shareholders’ equity11,732
11,454
16,433
(27,887)11,732
Total liabilities and shareholders’ equity$28,481
$22,093
$22,721
$(27,887)$45,408

*Includes the funded status of the company’s primary domestic qualified defined-benefit pension plans as the Parent has the ultimate obligation for the plans.


December 31, 2016Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
      
ASSETS     
Current assets:     
Cash and equivalents$1,254
$
$1,080
$
$2,334
Accounts receivable
1,155
2,244

3,399
Unbilled receivables
2,235
1,977

4,212
Inventories
5,022
96

5,118
Other current assets634
599
238

1,471
Total current assets1,888
9,011
5,635

16,534
Noncurrent assets:     
PP&E197
6,586
1,146

7,929
Accumulated depreciation of PP&E(67)(3,653)(732)
(4,452)
Intangible assets, net
265
413

678
Goodwill
8,050
3,395

11,445
Other assets640
232
166

1,038
Investment in subsidiaries41,956


(41,956)
Total noncurrent assets42,726
11,480
4,388
(41,956)16,638
Total assets$44,614
$20,491
$10,023
$(41,956)$33,172
      
LIABILITIES AND SHAREHOLDERS’ EQUITY     
Current liabilities:     
Short-term debt and current portion of long-term debt$898
$2
$
$
$900
Customer advances and deposits
4,339
2,488

6,827
Other current liabilities564
3,465
1,694

5,723
Total current liabilities1,462
7,806
4,182

13,450
Noncurrent liabilities:     
Long-term debt2,966
22


2,988
Other liabilities3,520
2,330
583

6,433
Total noncurrent liabilities6,486
2,352
583

9,421
Intercompany26,365
(25,827)(538)

Shareholders’ equity:     
Common stock482
6
2,354
(2,360)482
Other shareholders’ equity9,819
36,154
3,442
(39,596)9,819
Total shareholders’ equity10,301
36,160
5,796
(41,956)10,301
Total liabilities and shareholders’ equity$44,614
$20,491
$10,023
$(41,956)$33,172



CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Year Ended December 31, 2017Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Net cash provided by operating activities*$316
$2,370
$1,193
$
$3,879
Cash flows from investing activities:     
Capital expenditures(26)(330)(72)
(428)
Business acquisitions, net of cash acquired
(350)(49)
(399)
Other, net6
32
(2)
36
Net cash used by investing activities(20)(648)(123)
(791)
Cash flows from financing activities:     
Purchases of common stock(1,558)


(1,558)
Dividends paid(986)


(986)
Proceeds from fixed-rate notes985



985
Repayment of fixed-rate notes(900)


(900)
Other, net63
(3)

60
Net cash used by financing activities(2,396)(3)

(2,399)
Net cash used by discontinued operations(40)


(40)
Cash sweep/funding by parent2,816
(1,719)(1,097)

Net increase in cash and equivalents676

(27)
649
Cash and equivalents at beginning of year1,254

1,080

2,334
Cash and equivalents at end of year$1,930
$
$1,053
$
$2,983
      
Year Ended December 31, 2016     
Net cash provided by operating activities*$219
$1,914
$65
$
$2,198
Cash flows from investing activities:     
Capital expenditures(8)(336)(48)
(392)
Other, net5
(1)(38)
(34)
Net cash used by investing activities(3)(337)(86)
(426)
Cash flows from financing activities:     
Purchases of common stock(1,996)


(1,996)
Proceeds from fixed-rate notes992



992
Dividends paid(911)


(911)
Repayment of fixed-rate notes(500)


(500)
Proceeds from stock option exercises292



292
Other, net(45)(1)

(46)
Net cash used by financing activities(2,168)(1)

(2,169)
Net cash used by discontinued operations(54)


(54)
Cash sweep/funding by parent1,528
(1,576)48


Net decrease in cash and equivalents(478)
27

(451)
Cash and equivalents at beginning of year1,732

1,053

2,785
Cash and equivalents at end of year$1,254
$
$1,080
$
$2,334
* Continuing operations only.



CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Year Ended December 31, 2015Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Year Ended December 31, 2019Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Net cash provided by operating activities*$50
$2,202
$355
$
$2,607
$(46)$2,918
$109
$
$2,981
Cash flows from investing activities:  
Capital expenditures(42)(475)(52)
(569)(68)(718)(201)
(987)
Maturities of held-to-maturity securities500



500
Other, net166
103


269
7
10
(24)
(7)
Net cash provided by investing activities624
(372)(52)
200
Net cash used by investing activities(61)(708)(225)
(994)
Cash flows from financing activities:  
Dividends paid(1,152)


(1,152)
Repayments of commercial paper, net(850)


(850)
Purchases of common stock(3,233)


(3,233)(231)


(231)
Dividends paid(873)


(873)
Repayment of fixed-rate notes(500)


(500)
Other, net237
2


239
24
(2)214

236
Net cash used by financing activities(4,369)2


(4,367)(2,209)(2)214

(1,997)
Net cash used by discontinued operations(43)


(43)(51)


(51)
Cash sweep/funding by parent2,934
(1,832)(1,102)

2,508
(2,208)(300)

Net decrease in cash and equivalents(804)
(799)
(1,603)141

(202)
(61)
Cash and equivalents at beginning of year2,536

1,852

4,388
460

503

963
Cash and equivalents at end of year$1,732
$
$1,053
$
$2,785
$601
$
$301
$
$902
 
Year Ended December 31, 2018 
Net cash provided by operating activities*$(579)$2,954
$773
$
$3,148
Cash flows from investing activities: 
Business acquisitions, net of cash acquired(9,749)(74)(276)
(10,099)
Capital expenditures(51)(513)(126)
(690)
Proceeds from sales of assets90
472


562
Other, net4
(12)1

(7)
Net cash used by investing activities(9,706)(127)(401)
(10,234)
Cash flows from financing activities: 
Proceeds from fixed-rate notes6,461



6,461
Purchases of common stock(1,769)


(1,769)
Dividends paid(1,075)


(1,075)
Proceeds from floating-rate notes1,000



1,000
Proceeds from commercial paper, net850



850
Repayment of CSRA accounts receivable purchase
agreement


(450)
(450)
Other, net3
35
31

69
Net cash provided by financing activities5,470
35
(419)
5,086
Net cash used by discontinued operations(20)


(20)
Cash sweep/funding by parent3,365
(2,862)(503)

Net decrease in cash and equivalents(1,470)
(550)
(2,020)
Cash and equivalents at beginning of year1,930

1,053

2,983
Cash and equivalents at end of year$460
$
$503
$
$963
* Continuing operations only.



T. PRIOR-PERIOD FINANCIAL STATEMENTS
Our prior-period financial statements were restated for the adoption of two ASUs that are discussed below.
ASC Topic 606. We adopted ASC Topic 606 on January 1, 2017, using the retrospective method. The adoption of ASC Topic 606 had two primary impacts on our Consolidated Financial Statements. The impact of adjustments on profit recorded to date is now recognized in the period identified (cumulative catch-up method), rather than prospectively over the remaining contract term. For our contracts for the manufacture of business-jet aircraft, we now recognize revenue at a single point in time when control is transferred to the customer, generally upon delivery and acceptance of the fully outfitted aircraft. Prior to the adoption of ASC Topic 606, we recognized revenue for these contracts at two contractual milestones: when green aircraft were completed and accepted by the customer and when the customer accepted final delivery of the fully outfitted aircraft. The cumulative effect of the adoption was recognized as a decrease to retained earnings of $372 on January 1, 2015.
We applied the standard’s practical expedient that permits the omission of prior-period information about our remaining performance obligations. No other practical expedients were applied.
ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes. We adopted ASU 2015-17 on January 1, 2017, using the retrospective method. ASU 2015-17 requires that deferred tax assets and liabilities be classified as noncurrent on the Consolidated Balance Sheet. The adoption of ASU 2015-17 resulted in reclassifications among accounts on the Consolidated Balance Sheet, but had no other impacts on our results of operations, financial condition or cash flows.
The following tables summarize the effects of adopting these accounting standards on our Consolidated Financial Statements.



CONSOLIDATED STATEMENT OF EARNINGS

 Year Ended Effect of the Adoption of Year Ended
 December 31, 2016 ASC ASU December 31, 2016
(Dollars in millions, except per-share amounts)As Reported Topic 606 2015-17 As Adjusted
Revenue:       
Products$19,885
 $(875) $
 $19,010
Services11,468
 83
 
 11,551
 31,353
 (792) 
 30,561
Operating costs and expenses:  

    
Products15,458
 (299) 
 15,159
Services9,663
 83
 
 9,746
G&A1,923
 (1) 
 1,922
 27,044
 (217) 
 26,827
Operating earnings4,309
 (575) 
 3,734
Interest, net(91) 
 
 (91)
Other, net13
 
 
 13
Earnings from continuing operations before
   income tax
4,231
 (575) 
 3,656
Provision for income tax, net1,169
 (192) 
 977
Earnings from continuing operations3,062
 (383) 
 2,679
Discontinued operations, net of tax benefit of $51(107) 
 
 (107)
Net earnings$2,955
 $(383) $
 $2,572
        
Earnings per share       
Basic:       
Continuing operations$10.05
 $(1.26) $
 $8.79
Discontinued operations(0.35) 
 
 (0.35)
Net earnings$9.70
 $(1.26) $
 $8.44
Diluted:       
Continuing operations$9.87
 $(1.23) $
 $8.64
Discontinued operations(0.35) 
 
 (0.35)
Net earnings$9.52
 $(1.23) $
 $8.29



CONSOLIDATED STATEMENT OF EARNINGS

 Year Ended Effect of the Adoption of Year Ended
 December 31, 2015 ASC ASU December 31, 2015
(Dollars in millions, except per-share amounts)As Reported Topic 606 2015-17 As Adjusted
Revenue:       
Products$20,280
 $197
 $
 $20,477
Services11,189
 115
 
 11,304
 31,469
 312
 
 31,781
Operating costs and expenses:  

    
Products15,883
 103
 
 15,986
Services9,471
 92
 
 9,563
G&A1,937
 
 
 1,937
 27,291
 195
 
 27,486
Operating earnings4,178
 117
 
 4,295
Interest, net(83) 
 
 (83)
Other, net7
 
 
 7
Earnings from continuing operations before
   income tax
4,102
 117
 
 4,219
Provision for income tax, net1,137
 46
 
 1,183
Earnings from continuing operations2,965
 71
 
 3,036
Discontinued operations, net of tax benefit of $7
 
 
 
Net earnings$2,965
 $71
 $
 $3,036
        
Earnings per share       
Basic:       
Continuing operations$9.23
 $0.22
 $
 $9.45
Discontinued operations
 
 
 
Net earnings$9.23
 $0.22
 $
 $9.45
Diluted:       
Continuing operations$9.08
 $0.21
 $
 $9.29
Discontinued operations
 
 
 
Net earnings$9.08
 $0.21
 $
 $9.29



CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

 Year Ended Effect of the Adoption of Year Ended
 December 31, 2016 ASC ASU December 31, 2016
(Dollars in millions)As Reported Topic 606 2015-17 As Adjusted
Net earnings$2,955
 $(383) $
 $2,572
Gains on cash flow hedges191
 
 
 191
Unrealized losses on securities(9) 
 
 (9)
Foreign currency translation adjustments(118) 6
 
 (112)
Change in retirement plans’ funded status(192) 
 
 (192)
Other comprehensive loss, pretax(128) 6
 
 (122)
Benefit for income tax, net(18) 
 
 (18)
Other comprehensive loss, net of tax(110) 6
 
 (104)
Comprehensive income$2,845
 $(377) $
 $2,468
 Year Ended Effect of the Adoption of Year Ended
 December 31, 2015 ASC ASU December 31, 2015
(Dollars in millions)As Reported Topic 606 2015-17 As Adjusted
Net earnings$2,965
 $71
 $
 $3,036
Losses on cash flow hedges(394) 
 
 (394)
Unrealized losses on securities(2) 
 
 (2)
Foreign currency translation adjustments(374) 3
 
 (371)
Change in retirement plans’ funded status500
 
 
 500
Other comprehensive loss, pretax(270) 3
 
 (267)
Provision for income tax, net84
 
 
 84
Other comprehensive loss, net of tax(354) 3
 
 (351)
Comprehensive income$2,611
 $74
 $
 $2,685



CONSOLIDATED BALANCE SHEET

   Effect of the Adoption of  
 December 31, 2016 ASC ASU December 31, 2016
(Dollars in millions)As Reported Topic 606 2015-17* As Adjusted
        
ASSETS       
Current assets:       
Cash and equivalents$2,334
 $
 $
 $2,334
Accounts receivable3,611
 (212) 
 3,399
Unbilled receivables5,282
 (1,070) 
 4,212
Inventories3,523
 1,595
 
 5,118
Other current assets697
 789
 (15) 1,471
Total current assets15,447
 1,102
 (15) 16,534
Noncurrent assets:       
PP&E, net3,467
 10
 
 3,477
Intangible assets, net678
 
 
 678
Goodwill11,445
 
 
 11,445
Other assets1,835
 
 (797) 1,038
Total noncurrent assets17,425
 10
 (797) 16,638
Total assets$32,872
 $1,112
 $(812) $33,172
        
LIABILITIES AND
    SHAREHOLDERS’ EQUITY
       
Current liabilities:       
Short-term debt and current portion of
    long-term debt
$900
 $
 $
 $900
Accounts payable2,538
 
 
 2,538
Customer advances and deposits4,939
 1,888
 
 6,827
Other current liabilities4,469
 (361) (923) 3,185
Total current liabilities12,846
 1,527
 (923) 13,450
Noncurrent liabilities:       
Long-term debt2,988
 
 
 2,988
Other liabilities6,062
 260
 111
 6,433
Commitments and contingencies       
Total noncurrent liabilities9,050
 260
 111
 9,421
Shareholders’ equity:       
Common stock482
 
 
 482
Surplus2,819
 
 
 2,819
Retained earnings25,227
 (684) 
 24,543
Treasury stock(14,156) 
 
 (14,156)
Accumulated other comprehensive loss(3,396) 9
 
 (3,387)
Total shareholders’ equity10,976
 (675) 
 10,301
Total liabilities and shareholders’ equity$32,872
 $1,112
 $(812) $33,172
* The effect of the adoption of ASU 2015-17 includes the reclassification of current deferred tax assets and liabilities of $10 and $335, respectively, which represents the impact to current deferred taxes of adopting ASC Topic 606.



CONSOLIDATEDCONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS

Year Ended December 31, 2017Parent
Guarantors
on a
Combined
Basis
Other
Subsidiaries
on a
Combined
Basis
Consolidating
Adjustments
Total
Consolidated
Net cash provided by operating activities*$312
$2,371
$1,193
$
$3,876
Cash flows from investing activities:     
Capital expenditures(26)(330)(72)
(428)
Business acquisitions, net of cash acquired
(350)(49)
(399)
Other, net10
31
(2)
39
Net cash used by investing activities(16)(649)(123)
(788)
Cash flows from financing activities:     
Purchases of common stock(1,558)


(1,558)
Dividends paid(986)


(986)
Proceeds from fixed-rate notes985



985
Repayment of fixed-rate notes(900)


(900)
Other, net63
(3)

60
Net cash used by financing activities(2,396)(3)

(2,399)
Net cash used by discontinued operations(40)


(40)
Cash sweep/funding by parent2,816
(1,719)(1,097)

Net increase in cash and equivalents676

(27)
649
Cash and equivalents at beginning of year1,254

1,080

2,334
Cash and equivalents at end of year$1,930
$
$1,053
$
$2,983

* Continuing operations only.

 Year Ended Effect of the Adoption of Year Ended
 December 31, 2016 ASC ASU December 31, 2016
(Dollars in millions)As Reported Topic 606 2015-17 As Adjusted
Cash flows from operating activities -
    continuing operations:
       
Net earnings$2,955
 $(383) $
 $2,572
Adjustments to reconcile net earnings to net cash
    provided by operating activities:
       
Depreciation of PP&E366
 (1) 
 365
Amortization of intangible assets88
 
 
 88
Equity-based compensation expense95
 
 
 95
Deferred income tax provision376
 (192) 
 184
Discontinued operations, net of tax107
 
 
 107
(Increase) decrease in assets, net of effects of
    business acquisitions:
       
Accounts receivable(161) 39
 
 (122)
Unbilled receivables(1,033) (15) 
 (1,048)
Inventories(154) (223) 
 (377)
Other current assets55
 260
 
 315
Increase (decrease) in liabilities, net of effects of
    business acquisitions:
       
Accounts payable567
 
 
 567
Customer advances and deposits(825) 520
 
 (305)
Other, net(238) (5) 
 (243)
Net cash provided by operating activities2,198
 
 
 2,198
Cash flows from investing activities:       
Capital expenditures(392) 
 
 (392)
Business acquisitions, net of cash acquired(58) 
 
 (58)
Proceeds from sales of assets9
 
 
 9
Other, net15
 
 
 15
Net cash used by investing activities(426) 
 
 (426)
Cash flows from financing activities:       
Purchases of common stock(1,996) 
 
 (1,996)
Proceeds from fixed-rate notes992
 
 
 992
Dividends paid(911) 
 
 (911)
Repayment of fixed-rate notes(500) 
 
 (500)
Proceeds from stock option exercises292
 
 
 292
Other, net(46) 
 
 (46)
Net cash used by financing activities(2,169) 
 
 (2,169)
Net cash used by discontinued operations(54) 
 
 (54)
Net decrease in cash and equivalents(451) 
 
 (451)
Cash and equivalents at beginning of year2,785
 
 
 2,785
Cash and equivalents at end of year$2,334
 $
 $
 $2,334



CONSOLIDATED STATEMENT OF CASH FLOWS

 Year Ended Effect of the Adoption of Year Ended
 December 31, 2015 ASC ASU December 31, 2015
(Dollars in millions)As Reported Topic 606 2015-17 As Adjusted
Cash flows from operating activities -
    continuing operations:
       
Net earnings$2,965
 $71
 $
 $3,036
Adjustments to reconcile net earnings to net cash
    provided by operating activities:
       
Depreciation of PP&E366
 (1) 
 365
Amortization of intangible assets116
 
 
 116
Equity-based compensation expense98
 
 
 98
Deferred income tax provision167
 46
 
 213
(Increase) decrease in assets, net of effects of
    business acquisitions:
       
Accounts receivable604
 28
 
 632
Unbilled receivables231
 (170) 
 61
Inventories(156) 297
 
 141
Other current assets(38) 118
 
 80
Increase (decrease) in liabilities, net of effects of
    business acquisitions:
       
Accounts payable(89) 
 
 (89)
Customer advances and deposits(1,756) (397) 
 (2,153)
Other, net99
 8
 
 107
Net cash provided by operating activities2,607
 
 
 2,607
Cash flows from investing activities:       
Capital expenditures(569) 
 
 (569)
Maturities of held-to-maturity securities500
 
 
 500
Proceeds from sales of assets291
 
 
 291
Business acquisitions, net of cash acquired(5) 
 
 (5)
Other, net(17) 
 
 (17)
Net cash provided by investing activities200
 
 
 200
Cash flows from financing activities:       
Purchases of common stock(3,233) 
 
 (3,233)
Dividends paid(873) 
 
 (873)
Repayment of fixed-rate notes(500) 
 
 (500)
Proceeds from stock option exercises268
 
 
 268
Other, net(29) 
 
 (29)
Net cash used by financing activities(4,367) 
 
 (4,367)
Net cash used by discontinued operations(43) 
 
 (43)
Net decrease in cash and equivalents(1,603) 
 
 (1,603)
Cash and equivalents at beginning of year4,388
 
 
 4,388
Cash and equivalents at end of year$2,785
 $
 $
 $2,785



CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

 Common Stock Retained Treasury 
Accumulated
Other 
Comprehensive
 
Total
Shareholders’    
(Dollars in millions)Par Surplus Earnings Stock Loss Equity
December 31, 2014 - as reported$482
 $2,548
 $21,127
 $(9,396) $(2,932) $11,829
Cumulative-effect adjustment of ASC
    Topic 606 on January 1, 2015

 
 (372) 
 
 (372)
December 31, 2014 - as adjusted$482
 $2,548
 $20,755
 $(9,396) $(2,932) $11,457
Year ended December 31, 2015 - as
    reported

 182
 2,077
 (2,996) (354) (1,091)
Effect of the adoption of ASC Topic 606
 
 71
 
 3
 74
Effect of the adoption of ASU 2015-17
 
 
 
 
 
December 31, 2015 - as adjusted$482
 $2,730
 $22,903
 $(12,392) $(3,283) $10,440
Year ended December 31, 2016 - as
    reported

 89
 2,023
 (1,764) (110) 238
Effect of the adoption of ASC Topic 606
 
 (383) 
 6
 (377)
Effect of the adoption of ASU 2015-17
 
 
 
 
 
December 31, 2016 - as adjusted$482
 $2,819
 $24,543
 $(14,156) $(3,387) $10,301





REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
TheTo the Board of Directors and Shareholders of General Dynamics Corporation:
Opinion on the Consolidated Financial Statements
We have audited the accompanying Consolidated Balance SheetsSheet of General Dynamics Corporation and subsidiaries (the Company) as of December 31, 20172019 and 2016,2018, the related Consolidated Statements of Earnings, Comprehensive Income, Cash Flows, and Shareholders’ Equity for each of the years in the three-year period ended December 31, 2017,2019, and the related notes (collectively, the Consolidated Financial Statements). In our opinion, the Consolidated Financial Statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172019 and 2016,2018, and the results of theirits operations and theirits cash flows for each of the years in the three-year 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), the Company’s internal control over financial reporting as of December 31, 2017,2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 12, 2018,10, 2020, expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.
Change in Accounting Principle
As discussed in Note A to the Consolidated Financial Statements, the Company has changed its method of accounting for leases as of January 1, 2019, in accordance with the adoption of Accounting Standards Codification (ASC) Topic 842, Leases.
Basis for Opinion
These Consolidated Financial Statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these Consolidated 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 Consolidated 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 Consolidated 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 supportingregarding the amounts and disclosures in the Consolidated 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 Consolidated 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 Consolidated 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 Consolidated 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.
Evaluation over the Estimation of Costs to Complete on Select Long-term Contracts in the Defense Segments
As discussed in Note C to the Consolidated Financial Statements, accounting for long-term contracts involves estimation of the costs to complete a contract in order to accurately recognize the associated revenue and profit. The estimated cost to complete each contract is required to assess the proportion of revenues to recognize based upon the costs incurred-to-date in comparison to the total estimate of costs to complete the contract. The estimated cost to complete each contract incorporates assumptions of labor productivity and availability based on the complexity of the work to be performed, the cost of materials, and the performance of subcontractors.
We identified the evaluation over the estimation of costs to complete a select group of long-term contracts in the defense segments as a critical audit matter. The assumptions, included above, may have been used in estimating the costs to complete and required a high-level of subjectivity. Specifically, changes to those assumptions may have a significant impact on the estimated revenue and profit recorded during the period under audit.
The primary procedures we performed to address this critical audit matter included the following. We tested certain internal controls over the Company’s cost accumulation and estimation processes. This included transactional controls over the accumulation of costs incurred, and contract level controls over the estimated cost assumptions. We compared the Company’s historical estimates of costs to actual costs incurred to assess the Company’s ability to estimate accurately. We inquired of financial and operational personnel of the Company to identify factors that should be considered within the cost to complete estimates or indications of management bias. We evaluated the assumptions within the Company’s estimation of costs to complete by:
reading the underlying contract and related amendments to obtain an understanding of the contractual requirements and related performance obligations,
considering costs incurred to-date and considering the relative progress towards completion of the contract,
considering, if relevant, the estimated costs to complete on similar or predecessor programs,
inspecting correspondence, if any, between the Company and the customer regarding actual to date and expected performance, and
focusing on the Company’s assessment of contract performance risks included within the estimated costs to complete.
Evaluation over the Measurement of the Pension Projected Benefit Obligation
As discussed in Note R to the Consolidated Financial Statements, the Company’s estimated pension projected benefit obligation and the associated plan assets were $18.1 billion and $13.2 billion, respectively, on December 31, 2019. These balances resulted in a net liability of $4.9 billion. The pension projected benefit obligation is the present value of future pension benefits attributed to employee services rendered to date, including assumptions about future compensation levels.


We identified the evaluation over the measurement of the pension projected benefit obligation to be a critical audit matter. This is due to the specialized skills required to assess the Company’s actuarial models and the key assumptions, including the interest rates used to discount estimated future liabilities, salary increases, and retirement and mortality rates. In addition, the actuarial models were sensitive to changes in the key assumptions.
The primary procedures we performed to address this critical audit matter included the following. We tested certain internal controls over the Company’s pension projected benefit obligation estimation process, including controls related to the determination and use of the actuarial models and the key assumptions. We involved an actuarial professional with specialized skills and knowledge, who assisted in the assessment of certain actuarial models used by the Company for consistency with generally accepted actuarial standards. In addition, the actuarial professional assisted in the evaluation of the Company’s analysis of the key assumptions. This was done by comparing the key assumptions to amounts independently developed using publicly available market data and historical experience.
We have served as the Company’s auditor since 2002.
  
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We have served as the Company’s auditor since 2002.
McLean, Virginia
February 12, 201810, 2020
 




SUPPLEMENTARY DATA (UNAUDITED)
(Dollars in millions, except per-share amounts)2016 20172018 2019
1Q 2Q 3Q (a) 4Q 1Q 2Q 3Q 4Q (b)1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q
Revenue$7,476
 $7,774
 $7,657
 $7,654
 $7,441
 $7,675
 $7,580
 $8,277
$7,535
 $9,186
 $9,094
 $10,378
 $9,261
 $9,555
 $9,761
 $10,773
Operating earnings924
 1,027
 1,015
 768
 1,035
 1,056
 1,052
 1,034
1,008
 1,088
 1,135
 1,226
 1,014
 1,090
 1,216
 1,328
Earnings from continuing operations654
 714
 731
 580
 763
 749
 764
 636
799
 786
 864
 909
 745
 806
 913
 1,020
Discontinued operations(13) 
 (84) (10) 
 
 
 
Discontinued operations, net of tax
 
 (13) 
 
 
 
 
Net earnings$641
 $714
 $647
 $570
 $763
 $749
 $764
 $636
$799
 $786
 $851
 $909
 $745
 $806
 $913
 $1,020
Earnings per share - basic (c):               
Earnings per share - basic*:               
Continuing operations$2.12
 $2.35
 $2.40
 $1.92
 $2.53
 $2.50
 $2.56
 $2.14
$2.70
 $2.65
 $2.92
 $3.10
 $2.59
 $2.80
 $3.17
 $3.53
Discontinued operations(0.04) 
 (0.27) (0.04) 
 
 
 

 
 (0.04) 
 
 
 
 
Net earnings$2.08
 $2.35
 $2.13
 $1.88
 $2.53
 $2.50
 $2.56
 $2.14
$2.70
 $2.65
 $2.88
 $3.10
 $2.59
 $2.80
 $3.17
 $3.53
Earnings per share - diluted (c):               
Earnings per share - diluted*:               
Continuing operations$2.08
 $2.30
 $2.36
 $1.89
 $2.48
 $2.45
 $2.52
 $2.10
$2.65
 $2.62
 $2.89
 $3.07
 $2.56
 $2.77
 $3.14
 $3.51
Discontinued operations(0.04) 
 (0.27) (0.04) 
 
 
 

 
 (0.04) 
 
 
 
 
Net earnings$2.04
 $2.30
 $2.09
 $1.85
 $2.48
 $2.45
 $2.52
 $2.10
$2.65
 $2.62
 $2.85
 $3.07
 $2.56
 $2.77
 $3.14
 $3.51
Market price range:               
High$138.53
 $147.16
 $156.97
 $180.09
 $194.00
 $205.17
 $207.60
 $214.81
Low121.61
 129.55
 136.71
 148.76
 172.43
 185.64
 192.84
 195.69
Dividends declared$0.76
 $0.76
 $0.76
 $0.76
 $0.84
 $0.84
 $0.84
 $0.84
Quarterly data are based on a 13-week period. Because our fiscal year ends on December 31, the number of days in our first and fourth quarters varies slightly from year to year.
(a)Third-quarter 2016 includes an $84 loss, net of tax, in discontinued operations to adjust the value of a previously-recognized settlement related to litigation associated with a former business of the company.
(b)Fourth-quarter 2017 includes a $119 unfavorable one-time, non-cash impact resulting from the December 2017 change in tax law further discussed in Note F to the Consolidated Financial Statements in Item 8.
(c)* The sum of the basic and diluted earnings per share for the four quarters of the year may differ from the annual basic and diluted earnings per share due to the required method of computing the weighted average number of shares in interim periods.


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.


ITEM 9A. CONTROLS AND PROCEDURES
EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES
Our management, under the supervision and with the participation of the Chief Executive Officer and the Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2017,2019, (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended). Based on this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, on December 31, 2017,2019, our disclosure controls and procedures were effective.
The certifications of the company’s Chief Executive Officer and Chief Financial Officer required under Section 302 of the Sarbanes-Oxley Act have been filed as Exhibits 31.1 and 31.2 to this report.





MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
To the Shareholders of General Dynamics Corporation:
The management of General Dynamics Corporation is responsible for establishing and maintaining adequate internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Our internal control system was designed to provide reasonable assurance to our management and board of directors regarding the preparation and fair presentation of published 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.
Our management evaluated the effectiveness of our internal control over financial reporting as of December 31, 20172019. In making this evaluation, we used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control – Integrated Framework (2013). Based on our evaluation we believe that, as of December 31, 20172019, our internal control over financial reporting is effective based on those criteria.
KPMG LLP has issued an audit report on the effectiveness of our internal control over financial reporting. The KPMG report immediately follows this report.
 
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Phebe N. Novakovic   Jason W. Aiken
Chairman and Chief Executive Officer   Senior Vice President and Chief Financial Officer








REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
TheTo the Board of Directors and Shareholders of General Dynamics Corporation:
Opinion on Internal Control Over Financial Reporting
We have audited General Dynamics Corporation and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2017,2019, based on the criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. 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 criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Consolidated Balance SheetsSheet of the Company as of December 31, 20172019 and 2016,2018, the related Consolidated Statements of Earnings, Comprehensive Income, Cash Flows, and Shareholders’ Equity for each of the years in the three-year period ended December 31, 2017,2019, and the related notes (collectively, the Consolidated Financial Statements), and our report dated February 12, 2018,10, 2020, expressed an unqualified opinion on those Consolidated Financial Statements.
Basis for Opinion
The Company’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’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’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 of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included 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’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’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’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.
 
  
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McLean, Virginia  
February 12, 201810, 2020  
 
CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING
There were no changes in our internal control over financial reporting that occurred during the quarter ended December 31, 2017,2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.


ITEM 9B. OTHER INFORMATION
None.


PART III


ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required to be set forth herein, except for the information included under Information About Our Executive Officers of the Company in Part I, is included in the sections entitled “Election of the Board of Directors of the Company,” “Governance of the Company – Our Culture of Ethics,” “Audit Committee Report” and, if included, “Other Information – Delinquent Section 16(a) Beneficial Ownership Reporting Compliance”Reports” in our definitive proxy statement for our 20182020 annual shareholders meeting (the Proxy Statement), which sections are incorporated herein by reference.


ITEM 11. EXECUTIVE COMPENSATION
The information required to be set forth herein is included in the sections entitled “Governance of the Company – Director Compensation,” “Compensation Discussion and Analysis,” “Executive Compensation” and “Compensation Committee Report” in our Proxy Statement, which sections are incorporated herein by reference.


ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
The information required to be set forth herein is included in the sections entitled “Security Ownership of Management” and “Security Ownership of Certain Beneficial Owners” in our Proxy Statement, which sections are incorporated herein by reference.



The information required to be set forth herein with respect to securities authorized for issuance under our equity compensation plans is included in the section entitled “Equity Compensation Plan Information” in our Proxy Statement, which section is incorporated herein by reference.


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required to be set forth herein is included in the sections entitled “Governance of the Company – Related Person Transactions Policy” and “Governance of the Company – Director Independence” in our Proxy Statement, which sections are incorporated herein by reference.


ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
The information required to be set forth herein is included in the section entitled “Selection of Independent Auditors – Audit and Non-Audit Fees” in our Proxy Statement, which section is incorporated herein by reference.


PART IV


ITEM 15. EXHIBITS
1.Consolidated Financial Statements
Consolidated StatementsStatement of Earnings
Consolidated StatementsStatement of Comprehensive Income
Consolidated Balance SheetsSheet
Consolidated StatementsStatement of Cash Flows
Consolidated StatementsStatement of Shareholders’ Equity
Notes to Consolidated Financial Statements (A to T)
2.Index to Exhibits - General Dynamics Corporation
Commission File No. 1-3671
Exhibits listed below, which have been filed with the Commission pursuant to the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, and which were filed as noted below, are hereby incorporated by reference and made a part of this report with the same effect as if filed herewith.



3.2
  
4.1
  
4.2
  
4.3
  
4.4
  
4.5
  
4.6


  
10.1*4.7

  
10.2*4.8

  
10.3*4.9
10.1*
  
10.4*10.2*
  
10.5*10.3*
  



10.6*10.4*
  
10.7*10.5*
  
10.8*10.6*
  
10.9*10.7*
10.10*
  
10.11*10.8*
10.12*
  
10.13*10.9*


  




10.16*
10.12*


  
10.17*10.13*

10.14*
  
10.18*10.15*
  
10.19*10.16*
  
10.20*10.17*
  
10.21*10.18*
  
10.22*10.19*
  
10.23*10.20*
10.21*
  
21
  
23
  
24
  
31.1
  




32.2
  
101101.INSInline eXtensible Business Reporting Language (XBRL) Instance Document – the instance document does not appear in the Interactive Data File*File because its XBRL tags are embedded within the Inline XBRL document.
101.SCHInline XBRL Taxonomy Extension Schema Document**
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document**
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document**
101.LABInline XBRL Taxonomy Extension Label Linkbase Document**
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document**
104Cover Page Interactive Data File (embedded within the Inline XBRL document and contained in Exhibit 101)



* Indicates a management contract or compensatory plan or arrangement required to be filed pursuant to Item 15(b) of Form 10-K.
** Filed or furnished herewith.

In accordance with Item 601(b)(4)(iii)(A) of Regulation S-K, copies of certain instruments defining the rights of holders of long-term debt of the company are not filed herewith. Pursuant to this regulation, we hereby agree to furnish a copy of any such instrument to the SEC upon request.

ITEM 16. FORM 10-K SUMMARY
None.






SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


 
GENERAL DYNAMICS CORPORATION


 by
mosssignature20191231a01.gif
  William A. Moss
  Vice President and Controller
   
Dated: February 12, 201810, 2020  




Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below on February 12, 201810, 2020, by the following persons on behalf of the Registrant and in the capacities indicated, including a majority of the directors.



pnnsignature.gif
Chairman, Chief Executive Officer and Director
Phebe N. Novakovic(Principal Executive Officer)
  

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Senior Vice President and Chief Financial Officer
Jason W. Aiken(Principal Financial Officer)
  
mosssignature20191231a01.gif
Vice President and Controller
William A. Moss(Principal Accounting Officer)
*
Nicholas D. ChabrajaDirector
  
* 
James S. CrownDirector
  
* 
Rudy F. deLeonDirector
  
* 
John M. KeaneCecil D. HaneyDirector
  
* 
Lester L. LylesDirector
  
* 
Mark M. MalcolmDirector
*
James N. MattisDirector
*
C. Howard NyeDirector
  
* 
William A. OsbornDirector
  
* 
Catherine B. ReynoldsDirector
  
* 
Laura J. SchumacherDirector
  
* 
John G. StrattonDirector
*
Peter A. WallDirector


 * By Gregory S. Gallopoulos pursuant to a Power of Attorney executed by the directors listed above, which Power of Attorney has been filed as an exhibit hereto and incorporated herein by reference thereto.
 
gsgsignature.gif
  
 Gregory S. Gallopoulos
 Senior Vice President, General Counsel and Secretary


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