Document and Entity Information
Document and Entity Information - shares | 9 Months Ended | |
Sep. 30, 2019 | Oct. 31, 2019 | |
Document Information [Line Items] | ||
Document Transition Report | false | |
Document Quarterly Report | true | |
Title of 12(b) Security | Common Units Representing Limited Partnership Interests | |
Entity Incorporation, State or Country Code | DE | |
Document Type | 10-Q | |
Document Period End Date | Sep. 30, 2019 | |
Amendment Flag | false | |
Entity File Number | 001-35714 | |
Document Fiscal Year Focus | 2019 | |
Document Fiscal Period Focus | Q3 | |
Trading Symbol | MPLX | |
Entity Registrant Name | MPLX LP | |
Entity Central Index Key | 0001552000 | |
Current Fiscal Year End Date | --12-31 | |
Entity Filer Category | Large Accelerated Filer | |
Entity Emerging Growth Company | false | |
Entity Small Business | false | |
Entity Common Stock, Shares Outstanding | 1,058,355,304 | |
Entity Address, Address Line One | 200 E. Hardin Street, | |
Entity Address, City or Town | Findlay, | |
Entity Address, State or Province | OH | |
Entity Address, Postal Zip Code | 45840 | |
City Area Code | 419 | |
Local Phone Number | 421-2414 | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Shell Company | false | |
Security Exchange Name | NYSE | |
Entity Tax Identification Number | 27-0005456 |
Consolidated Statements of Inco
Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended | |||||||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||||||
Revenues and other income: | |||||||||
Total revenues from contracts with customers | $ 1,760 | $ 1,341 | $ 5,185 | $ 3,679 | |||||
Rental income | 99 | 89 | 291 | 252 | |||||
Rental income - related parties | 293 | 190 | 904 | 525 | |||||
Income from equity method investments | 95 | 64 | 255 | [1],[2] | 175 | [1],[2] | |||
Other income | 2 | 3 | 6 | 8 | |||||
Other income - related parties | 31 | 26 | 84 | 73 | |||||
Revenues | 2,280 | 1,712 | 6,725 | 4,710 | |||||
Costs and expenses: | |||||||||
Rental cost of sales | 37 | 32 | 103 | 94 | |||||
Rental cost of sales - related parties | 45 | 1 | 124 | 2 | |||||
Purchases - related parties | 303 | 228 | 894 | 628 | |||||
Depreciation and amortization | [3] | 302 | 201 | 916 | 565 | ||||
General and administrative expenses | 102 | 76 | 293 | 217 | |||||
Other taxes | 29 | 20 | 84 | 55 | |||||
Total costs and expenses | 1,354 | 1,040 | 4,002 | 2,873 | |||||
Income from operations | 926 | 672 | 2,723 | 1,837 | |||||
Related party interest and other financial costs | 5 | 2 | 8 | 4 | |||||
Interest expense (net of amounts capitalized of $13 million, $9 million, $36 million and $27 million, respectively) | 212 | 134 | 640 | 381 | |||||
Other financial costs | 16 | 17 | 38 | 49 | |||||
Income before income taxes | 693 | 519 | 2,037 | 1,403 | |||||
Provision for income taxes | 4 | 3 | 2 | 8 | |||||
Net income | 689 | 516 | 2,035 | 1,395 | |||||
Less: Net income (loss) attributable to noncontrolling interest | 8 | 6 | 20 | 11 | |||||
Income (Loss) Attributable to Predecessor | 52 | 0 | 401 | 0 | |||||
Net income (loss) attributable to MPLX LP | 629 | [4] | 510 | [4] | 1,614 | 1,384 | [4] | ||
Limited partners' interest in net income (loss) attributable to MPLX LP | $ 602 | $ 491 | 1,546 | $ 1,329 | |||||
Weighted average limited partner units outstanding: | |||||||||
Common - basic (in shares) | 1,005 | [5] | 825 | 781 | |||||
Common - diluted (in shares) | 1,006 | [5] | 825 | 781 | |||||
Preferred Partner [Member] | |||||||||
Costs and expenses: | |||||||||
Net income (loss) attributable to MPLX LP | [4] | $ 1,614 | |||||||
Weighted average limited partner units outstanding: | |||||||||
Common - basic (in shares) | [5] | 886 | |||||||
Common - diluted (in shares) | 886 | ||||||||
Limited Partners Common Units | |||||||||
Costs and expenses: | |||||||||
Net income (loss) attributable to MPLX LP | [4] | $ 599 | $ 491 | $ 1,522 | $ 1,329 | ||||
Net income (loss) attributable to MPLX LP per limited partner unit: | |||||||||
Common - basic (in USD per unit) | $ 0.61 | $ 0.62 | $ 1.78 | $ 1.77 | |||||
Common - diluted (in USD per unit) | $ 0.61 | $ 0.62 | $ 1.78 | $ 1.77 | |||||
Weighted average limited partner units outstanding: | |||||||||
Common - basic (in shares) | 974 | [5] | 794 | 855 | [5] | 750 | |||
Common - diluted (in shares) | 975 | [5] | 794 | 855 | [5] | 750 | |||
Service [Member] | |||||||||
Revenues and other income: | |||||||||
Total revenues from contracts with customers | $ 632 | $ 456 | $ 1,865 | $ 1,248 | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 899 | 568 | 2,549 | 1,588 | |||||
Service, Other [Member] | |||||||||
Revenues and other income: | |||||||||
Total revenues from contracts with customers | 26 | 59 | 86 | 154 | |||||
Product [Member] | |||||||||
Revenues and other income: | |||||||||
Total revenues from contracts with customers | 171 | 239 | 576 | 652 | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 32 | 18 | 109 | 35 | |||||
Oil and Gas, Refining and Marketing [Member] | |||||||||
Costs and expenses: | |||||||||
Cost of Goods and Services Sold | 407 | 241 | 1,099 | 680 | |||||
Natural Gas, Midstream [Member] | |||||||||
Costs and expenses: | |||||||||
Cost of Goods and Services Sold | 129 | 241 | 489 | 632 | |||||
Series A Preferred Stock [Member] | Preferred Partner [Member] | |||||||||
Costs and expenses: | |||||||||
Net income (loss) attributable to MPLX LP | [4] | 20 | 19 | 61 | 55 | ||||
Dividends, Preferred Stock | $ 20 | $ 19 | $ 61 | $ 55 | |||||
Weighted average limited partner units outstanding: | |||||||||
Common - basic (in shares) | 31 | [5] | 31 | 31 | [5] | 31 | |||
Common - diluted (in shares) | 31 | [5] | 31 | 31 | [5] | 31 | |||
Series B Preferred Stock [Member] | Preferred Partner [Member] | |||||||||
Costs and expenses: | |||||||||
Net income (loss) attributable to MPLX LP | [4] | $ 10 | $ 31 | ||||||
Dividends, Preferred Stock | $ 7 | $ 0 | $ 7 | $ 0 | |||||
[1] | Includes the impact of any basis differential amortization or accretion. | ||||||||
[2] | The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. | ||||||||
[3] | Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 | ||||||||
[4] | Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. | ||||||||
[5] | The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire three months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. |
Consolidated Statements of In_2
Consolidated Statements of Income (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | |
Income Statement [Abstract] | ||||
Interest Costs Capitalized | $ 13 | $ 9 | $ 36 | $ 27 |
Consolidated Statements of Comp
Consolidated Statements of Comprehensive Income - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | |
Statement of Comprehensive Income [Abstract] | ||||
Net income | $ 689 | $ 516 | $ 2,035 | $ 1,395 |
Other comprehensive income/(loss), net of tax: | ||||
Remeasurements of pension and other postretirement benefits related to equity method investments, net of tax | 0 | 0 | 1 | (2) |
Comprehensive income | 689 | 516 | 2,036 | 1,393 |
Less comprehensive income attributable to: | ||||
Noncontrolling interests | 8 | 6 | 20 | 11 |
Comprehensive Income (loss), Net of Tax, Attributable to Predecessor | 52 | 0 | 401 | 0 |
Comprehensive income attributable to MPLX LP | $ 629 | $ 510 | $ 1,615 | $ 1,382 |
Consolidated Balance Sheets
Consolidated Balance Sheets - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 | |
Current assets: | |||
Cash and cash equivalents | $ 41 | $ 77 | |
Receivables, net | 570 | 611 | |
Current Assets, Related Parties | 660 | 556 | |
Inventories | 104 | 98 | |
Other current assets | 65 | 98 | |
Total current assets | 1,440 | 1,440 | |
Equity method investments | 5,182 | 4,901 | |
Property, plant and equipment, net | 21,892 | 21,525 | |
Intangibles, net | 1,309 | 1,359 | |
Goodwill | 10,735 | 10,016 | |
Operating Lease, Right-of-Use Asset | 366 | 0 | |
Other Assets, Related Parties, Noncurrent | 302 | 24 | |
Other noncurrent assets | 55 | 60 | |
Total assets | 41,281 | 39,325 | |
Current liabilities: | |||
Accounts payable | 196 | 266 | |
Accrued Liabilities, Current | 185 | 272 | |
Current Liabilities, Related Parties | 562 | 502 | |
Accrued Property Plant and Equipment Current | 346 | 399 | |
Accrued interest payable | 226 | 184 | |
Operating Lease, Liability, Current | 61 | 0 | |
Other current liabilities | 656 | 645 | |
Total current liabilities | 2,232 | 2,268 | |
Long-term deferred revenue | 189 | 132 | |
Liabilities, Related Parties, Noncurrent | 293 | 46 | |
Long-term debt | 19,190 | 17,922 | |
Deferred income taxes | 15 | 14 | |
Operating Lease, Liability, Noncurrent | 309 | 0 | |
Deferred credits and other liabilities | 193 | 208 | |
Total liabilities | 22,421 | 20,590 | |
Commitments and contingencies (see Note 20) | |||
Series A preferred units | 968 | 1,004 | |
Equity | |||
Total MPLX LP partners’ capital | 17,642 | 17,575 | |
Accumulated other comprehensive loss | [1] | (15) | (16) |
Noncontrolling interests | 250 | 156 | |
Total equity | 17,892 | 17,731 | |
Total liabilities, preferred units and equity | 41,281 | 39,325 | |
MPC | |||
Current assets: | |||
Other current assets | 6 | 0 | |
Operating Lease, Right-of-Use Asset | 232 | 0 | |
Current liabilities: | |||
Operating Lease, Liability, Current | 1 | 0 | |
Operating Lease, Liability, Noncurrent | 231 | 0 | |
Series B Preferred Stock [Member] | |||
Equity | |||
Total MPLX LP partners’ capital | 601 | 0 | |
Limited Partners Common Units | Public | |||
Equity | |||
Total MPLX LP partners’ capital | 11,289 | 8,336 | |
Total equity | 11,289 | 8,336 | |
Limited Partners Common Units | MPC | |||
Equity | |||
Total MPLX LP partners’ capital | 5,767 | (1,612) | |
Total equity | 5,767 | (1,612) | |
LOOP and Explorer | |||
Equity | |||
Accumulated other comprehensive loss | (15) | (16) | |
Retained Earnings [Member] | MPC | |||
Equity | |||
Total equity | $ 0 | $ 10,867 | |
[1] | These components of “Accumulated other comprehensive loss” are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included on the Consolidated Statements of Income under the caption “Income/(loss) from equity method investments.” |
Consolidated Balance Sheets (Pa
Consolidated Balance Sheets (Parenthetical) - Limited Partners Common Units - shares shares in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Public | ||
Units issued | 392 | 289 |
Units outstanding | 392 | 289 |
MPC | ||
Units issued | 666 | 505 |
Units outstanding | 666 | 505 |
Consolidated Statements of Cash
Consolidated Statements of Cash Flows - USD ($) $ in Millions | 9 Months Ended | ||
Sep. 30, 2019 | Sep. 30, 2018 | ||
Proceeds from Contributions from Parent | $ 52 | $ 0 | |
Operating activities: | |||
Net income | 2,035 | 1,395 | |
Adjustments to reconcile net income to net cash provided by operating activities: | |||
Amortization of deferred financing costs | 29 | 45 | |
Depreciation and amortization | [1] | 916 | 565 |
Deferred income taxes | 1 | 7 | |
Asset retirement expenditures | (1) | (7) | |
(Gain)/loss on disposal of assets | (3) | 1 | |
Income from equity method investments | [2],[3] | (255) | (175) |
Distributions from unconsolidated affiliates | 379 | 279 | |
Changes in: | |||
Current receivables | 38 | (157) | |
Inventories | (3) | (10) | |
Fair value of derivatives | (4) | 16 | |
Current accounts payable and accrued liabilities | (81) | 151 | |
Current assets/current liabilities - related parties | (148) | (108) | |
Increase (Decrease) in Other Operating Assets and Liabilities, Net | 6 | 0 | |
Deferred revenue | 58 | 30 | |
All other, net | 23 | (5) | |
Net cash provided by operating activities | 2,990 | 2,027 | |
Investing activities: | |||
Additions to property, plant and equipment | (1,720) | (1,383) | |
Proceeds from Contributions from Affiliates | 6 | ||
Acquisitions, net of cash acquired | (451) | ||
Disposal of assets | 14 | 5 | |
Investments in unconsolidated affiliates | (494) | (215) | |
Distributions from unconsolidated affiliates - return of capital | 2 | 16 | |
All other, net | 3 | 1 | |
Net cash used in investing activities | (2,189) | (2,027) | |
Financing activities: | |||
Long-term debt - borrowings | 8,674 | 10,735 | |
Long-term debt - repayments | (7,423) | (4,781) | |
Related party debt - borrowings | 7,708 | 2,395 | |
Related party debt - repayments | (7,583) | (2,781) | |
Debt issuance costs | (20) | (53) | |
Distributions to MPC for acquisitions | 0 | (4,111) | |
Distributions to noncontrolling interests | (20) | (10) | |
Distributions to unitholders and general partner | (1,731) | (1,312) | |
Contributions from noncontrolling interests | 94 | 8 | |
All other, net | (12) | (8) | |
Net cash used in financing activities | (845) | 30 | |
Net (decrease)/increase in cash, cash equivalents and restricted cash | (44) | 30 | |
Cash, cash equivalents and restricted cash at beginning of period | 85 | 9 | |
Cash, cash equivalents and restricted cash at end of period | 41 | 39 | |
Series A Preferred Stock [Member] | Preferred Partner [Member] | |||
Financing activities: | |||
Distributions to preferred unitholders | (61) | (52) | |
Series B Preferred Stock [Member] | Preferred Partner [Member] | |||
Payments of Distributions on Preferred Units from Predecessor | 502 | ||
Financing activities: | |||
Distributions to preferred unitholders | $ (21) | $ 0 | |
[1] | Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 | ||
[2] | Includes the impact of any basis differential amortization or accretion. | ||
[3] | The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. |
Consolidated Statements of Equi
Consolidated Statements of Equity - USD ($) | Total | PublicLimited Partners Class B Units [Member] | PublicLimited Partners Common Units | MPCLimited Partners Common Units | MPCGeneral Partner | Accumulated Other Comprehensive Loss | Noncontrolling Interests | Equity of PredecessorMPC |
Beginning Balance at Dec. 31, 2017 | $ 9,973,000,000 | $ 8,379,000,000 | $ 2,099,000,000 | $ (637,000,000) | $ (14,000,000) | $ 146,000,000 | $ 0 | |
Distributions to: | (407,000,000) | 180,000,000 | 225,000,000 | (2,000,000) | ||||
Contributions from: | 1,046,000,000 | 1,046,000,000 | ||||||
Allocation of MPC's net investment at acquisition | 0 | 5,172,000,000 | (4,126,000,000) | (1,046,000,000) | ||||
MPC for acquisition | (4,100,000,000) | (936,000,000) | (3,164,000,000) | |||||
Unitholders and general partner | (347,000,000) | (176,000,000) | (171,000,000) | |||||
Noncontrolling interests | (3,000,000) | (3,000,000) | ||||||
Contributions from noncontrolling interests | (1,000,000) | (1,000,000) | ||||||
Partners' Capital Account, Exchanges and Conversions | 0 | (7,926,000,000) | 7,926,000,000 | |||||
Other | 1,000,000 | 2,000,000 | 0 | 1,000,000 | (2,000,000) | |||
Ending Balance at Mar. 31, 2018 | 6,978,000,000 | 8,385,000,000 | (1,537,000,000) | 0 | (16,000,000) | 146,000,000 | 0 | |
Beginning Balance at Dec. 31, 2017 | 9,973,000,000 | 8,379,000,000 | 2,099,000,000 | (637,000,000) | (14,000,000) | 146,000,000 | 0 | |
Contributions from noncontrolling interests | (8,000,000) | |||||||
Ending Balance at Sep. 30, 2018 | 6,953,000,000 | 8,367,000,000 | (1,553,000,000) | 0 | (16,000,000) | 155,000,000 | 0 | |
Beginning Balance at Mar. 31, 2018 | 6,978,000,000 | 8,385,000,000 | (1,537,000,000) | 0 | (16,000,000) | 146,000,000 | 0 | |
Distributions to: | (436,000,000) | 157,000,000 | 276,000,000 | (3,000,000) | ||||
Unitholders and general partner | (467,000,000) | (179,000,000) | (288,000,000) | |||||
Noncontrolling interests | (3,000,000) | (3,000,000) | ||||||
Contributions from noncontrolling interests | (4,000,000) | (4,000,000) | ||||||
Other | 4,000,000 | 3,000,000 | 1,000,000 | 0 | 0 | |||
Ending Balance at Jun. 30, 2018 | 6,952,000,000 | 8,366,000,000 | (1,548,000,000) | 0 | (16,000,000) | 150,000,000 | 0 | |
Distributions to: | (497,000,000) | (179,000,000) | (312,000,000) | (6,000,000) | ||||
Unitholders and general partner | (498,000,000) | 182,000,000 | 316,000,000 | |||||
Noncontrolling interests | (4,000,000) | (4,000,000) | ||||||
Contributions from noncontrolling interests | (3,000,000) | (3,000,000) | ||||||
Other | 3,000,000 | 4,000,000 | (1,000,000) | 0 | 0 | |||
Ending Balance at Sep. 30, 2018 | 6,953,000,000 | 8,367,000,000 | (1,553,000,000) | $ 0 | (16,000,000) | 155,000,000 | 0 | |
Beginning Balance at Dec. 31, 2018 | 17,731,000,000 | $ 0 | 8,336,000,000 | (1,612,000,000) | (16,000,000) | 156,000,000 | 10,867,000,000 | |
Distributions to: | (669,000,000) | 176,000,000 | 307,000,000 | (6,000,000) | (180,000,000) | |||
Contributions from: | 15,000,000 | 0 | 0 | 15,000,000 | ||||
Unitholders and general partner | (776,000,000) | 0 | (188,000,000) | (327,000,000) | (261,000,000) | |||
Noncontrolling interests | (6,000,000) | 0 | 0 | 0 | (6,000,000) | 0 | ||
Contributions from noncontrolling interests | (94,000,000) | 0 | 0 | 0 | (94,000,000) | 0 | ||
Other | 3,000,000 | 2,000,000 | 0 | 1,000,000 | ||||
Ending Balance at Mar. 31, 2019 | 17,730,000,000 | 0 | 8,326,000,000 | (1,632,000,000) | (15,000,000) | 250,000,000 | 10,801,000,000 | |
Beginning Balance at Dec. 31, 2018 | 17,731,000,000 | 0 | 8,336,000,000 | (1,612,000,000) | (16,000,000) | 156,000,000 | 10,867,000,000 | |
Contributions from noncontrolling interests | (94,000,000) | |||||||
Ending Balance at Sep. 30, 2019 | 17,892,000,000 | 601,000,000 | 11,289,000,000 | 5,767,000,000 | (15,000,000) | 250,000,000 | 0 | |
Beginning Balance at Mar. 31, 2019 | 17,730,000,000 | 0 | 8,326,000,000 | (1,632,000,000) | (15,000,000) | 250,000,000 | 10,801,000,000 | |
Distributions to: | (636,000,000) | 168,000,000 | 293,000,000 | (6,000,000) | (169,000,000) | |||
Contributions from: | 13,000,000 | 0 | 0 | 13,000,000 | ||||
Unitholders and general partner | (764,000,000) | (191,000,000) | (332,000,000) | 0 | 241,000,000 | |||
Noncontrolling interests | (6,000,000) | 0 | 0 | 0 | (6,000,000) | |||
Other | 2,000,000 | 2,000,000 | 0 | 0 | 0 | 0 | ||
Ending Balance at Jun. 30, 2019 | 17,611,000,000 | 0 | 8,305,000,000 | (1,671,000,000) | (15,000,000) | 250,000,000 | 10,742,000,000 | |
Distributions to: | (669,000,000) | (7,000,000) | (222,000,000) | (380,000,000) | (8,000,000) | (52,000,000) | ||
Contributions from: | 295,000,000 | 0 | 292,000,000 | 0 | 3,000,000 | |||
Allocation of MPC's net investment at acquisition | 0 | 615,000,000 | 2,983,000,000 | 7,199,000,000 | 0 | 0 | (10,797,000,000) | |
Unitholders and general partner | (715,000,000) | (21,000,000) | (262,000,000) | (432,000,000) | 0 | 0 | 0 | |
Noncontrolling interests | (8,000,000) | 0 | 0 | 0 | (8,000,000) | |||
Partners' Capital Account, Exchanges and Conversions | 36,000,000 | 36,000,000 | 0 | 0 | 0 | 0 | ||
Other | 4,000,000 | 5,000,000 | (1,000,000) | 0 | 0 | 0 | ||
Ending Balance at Sep. 30, 2019 | $ 17,892,000,000 | $ 601,000,000 | $ 11,289,000,000 | $ 5,767,000,000 | $ (15,000,000) | $ 250,000,000 | $ 0 |
Description of the Business and
Description of the Business and Basis of Presentation | 9 Months Ended |
Sep. 30, 2019 | |
Accounting Policies [Abstract] | |
Business Description and Basis of Presentation [Text Block] | Description of the Business and Basis of Presentation Description of the Business – MPLX LP is a diversified, large-cap master limited partnership formed by Marathon Petroleum Corporation that owns and operates midstream energy infrastructure and logistics assets, and provides fuels distribution services. References in this report to “MPLX LP,” “MPLX,” “the Partnership,” “we,” “ours,” “us,” or like terms refer to MPLX LP and its subsidiaries. References to “MPC” refer collectively to Marathon Petroleum Corporation as our sponsor and its subsidiaries, other than the Partnership. We are engaged in the transportation, storage and distribution of crude oil, asphalt and refined petroleum products; the gathering, processing and transportation of natural gas; and the gathering, transportation, fractionation, storage and marketing of NGLs. MPLX’s principal executive office is located in Findlay, Ohio. MPLX’s business consists of two segments based on the nature of services it offers: Logistics and Storage (“L&S”), which relates primarily to crude oil, asphalt and refined petroleum products; and Gathering and Processing (“G&P”), which relates primarily to natural gas and NGLs. See Note 9 for additional information regarding the operations and results of these segments. On July 30, 2019, MPLX completed its acquisition by merger (the “Merger”) of Andeavor Logistics LP (“ANDX”). At the effective time of the Merger, each common unit held by ANDX’s public unitholders was converted into the right to receive 1.135 MPLX common units. ANDX common units held by certain affiliates of MPC were converted into the right to receive 1.0328 MPLX common units. See Note 3 for additional information regarding the Merger. Basis of Presentation – The accompanying interim consolidated financial statements are unaudited; however, in the opinion of MPLX’s management, these statements reflect all adjustments necessary for a fair statement of the results for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These interim consolidated financial statements, including the notes, have been prepared in accordance with the rules and regulations of the SEC applicable to interim period financial statements and do not include all of the information and disclosures required by GAAP for complete financial statements. Certain amounts in prior years have been reclassified to conform to current year presentation. These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Annual Report on Form 10-K for the year ended December 31, 2018 . The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for the full year. In relation to the Merger described above and in Note 3 , ANDX’s assets, liabilities and results of operations prior to the Merger are collectively included in what we refer to as the “Predecessor” from October 1, 2018, which was the date that MPC acquired Andeavor. MPLX’s acquisition of ANDX is considered a transfer between entities under common control due to MPC’s relationship with ANDX prior to the Merger. As an entity under common control with MPC, MPLX recorded the assets acquired and liabilities assumed on its consolidated balance sheets at MPC’s historical carrying value. Transfers of businesses between entities under common control require prior periods to be retrospectively adjusted for those dates that the entity was under common control. Accordingly, the accompanying financial statements and related notes of MPLX LP have been retrospectively adjusted to include the historical results of ANDX beginning October 1, 2018. MPLX’s consolidated financial statements include all majority-owned and controlled subsidiaries. For non wholly-owned consolidated subsidiaries, the interests owned by third parties have been recorded as “Noncontrolling interests” on the accompanying Consolidated Balance Sheets. Intercompany investments, accounts and transactions have been eliminated. MPLX’s investments in which MPLX exercises significant influence but does not control and does not have a controlling financial interest are accounted for using the equity method. MPLX’s investments in a VIE in which MPLX exercises significant influence but does not control and is not the primary beneficiary are also accounted for using the equity method. In preparing the Consolidated Statements of Equity, net income attributable to MPLX LP is allocated to Series A and Series B preferred unitholders based on a fixed distribution schedule. Distributions, although earned, are not accrued until declared. The allocation of net income attributable to MPLX LP for purposes of calculating net income per limited partner unit is described in Note 6 . |
Accounting Standards
Accounting Standards | 9 Months Ended |
Sep. 30, 2019 | |
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] | |
Accounting Standards | Recently Adopted ASU 2016-02, Leases We adopted ASU No. 2016-02, Leases (Topic 842), as of January 1, 2019, electing the transition method which permits entities to adopt the provisions of the standard using the modified retrospective approach without adjusting comparative periods. We also elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed us to grandfather the historical accounting conclusions until a reassessment event is present. We have also elected the practical expedient to not recognize short-term leases on the balance sheet, the practical expedient related to right of way permits and land easements which allows us to carry forward our accounting treatment for those existing agreements, and the practical expedient to combine lease and non-lease components for the majority of our underlying classes of assets except for our third-party contractor service and equipment agreements and boat and barge equipment agreements in which we are the lessee. We did not elect the practical expedient to combine lease and non-lease components for arrangements in which we are the lessor. In instances where the practical expedient was not elected, lease and non-lease consideration is allocated based on relative standalone selling price. Right of use (“ROU”) assets represent our right to use an underlying asset in which we obtain substantially all of the economic benefits and the right to direct the use of the asset during the lease term. Lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. We recognize ROU assets and lease liabilities on the balance sheet for leases with a lease term of greater than one year. Payments that are not fixed at the commencement of the lease are considered variable and are excluded from the ROU asset and lease liability calculations. In the measurement of our ROU assets and lease liabilities, the fixed lease payments in the agreement are discounted using a secured incremental borrowing rate for a term similar to the duration of the lease, as our leases do not provide implicit rates. Operating lease expense is recognized on a straight-line basis over the lease term. Adoption of the new standard resulted in the recording of ROU assets and lease liabilities of approximately $629 million and $629 million , respectively, as of January 1, 2019. This is inclusive of ROU assets and lease liabilities related to ANDX of $124 million and $127 million respectively. The standard did not materially impact our consolidated statements of income, cash flows or equity as a result of adoption. As a lessor under ASC 842, MPLX may be required to re-classify existing operating leases to sales-type leases upon modification and related reassessment of the leases. See Note 19 for further information regarding our ongoing evaluation of the impacts of lease reassessments as modifications occur. We also adopted the following standard during the first nine months of 2019 , which did not have a material impact to our financial statements or financial statement disclosures: ASU Effective Date 2017-12 Derivatives and Hedging - Targeted Improvements to Accounting for Hedging Activities January 1, 2019 |
Description of New Accounting Pronouncements Not yet Adopted [Text Block] | Not Yet Adopted ASU 2017-04, Intangibles - Goodwill and Other - Simplifying the Test for Goodwill Impairment In January 2017, the FASB issued an ASU which simplifies the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Under the new guidance, the recognition of an impairment charge is calculated based on the amount by which the carrying amount exceeds the reporting unit’s fair value, which could be different from the amount calculated under the current method using the implied fair value of the goodwill; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The guidance should be applied on a prospective basis, and is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. ASU 2016-13, Credit Losses - Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued an ASU related to the accounting for credit losses on certain financial instruments. The guidance requires that for most financial assets, losses be based on an expected loss approach which includes estimates of losses over the life of exposure that considers historical, current and forecasted information. Expanded disclosures related to the methods used |
Acquisitions
Acquisitions | 9 Months Ended |
Sep. 30, 2019 | |
Business Combinations [Abstract] | |
Acquisitions | Acquisitions Acquisition of Andeavor Logistics LP As previously disclosed, on May 7, 2019, ANDX, Tesoro Logistics GP, LLC, then the general partner of ANDX (“TLGP”), MPLX, MPLX GP LLC, the general partner of MPLX (“MPLX GP”), and MPLX MAX LLC, a wholly-owned subsidiary of MPLX (“Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) that provided for, among other things, the merger of Merger Sub with and into ANDX. On July 30, 2019, the Merger was completed, and ANDX survived the Merger as a wholly-owned subsidiary of MPLX. At the effective time of the Merger, each common unit held by ANDX’s public unitholders was converted into the right to receive 1.135 MPLX common units. ANDX common units held by certain affiliates of MPC were converted into the right to receive 1.0328 MPLX common units. See Note 7 for information on units issued in connection with the Merger. Additionally, as a result of the Merger, each ANDX TexNew Mex Unit issued and outstanding immediately prior to the effective time of the Merger was converted into a right for Western Refining Southwest, Inc. (“Southwest, Inc.”), a wholly-owned subsidiary of MPC, as the holder of all such units, to receive a unit representing a substantially equivalent limited partner interest in MPLX (the “MPLX TexNew Mex Units”). By virtue of the conversion, all ANDX TexNew Mex Units were cancelled and ceased to exist as of the effective time of the Merger. The MPLX TexNew Mex Units are a new class of units in MPLX substantially equivalent to the ANDX TexNew Mex Units, including substantially equivalent rights, powers, duties and obligations that the ANDX TexNew Mex Units had immediately prior to the closing of the Merger. As a result of the Merger, the ANDX Special Limited Partner Interest outstanding immediately prior to the effective time of the Merger was converted into a right for Southwest Inc., as the holder of all such interest, to receive a substantially equivalent special limited partner interest in MPLX (the “MPLX Special Limited Partner Interest”). By virtue of the conversion, the ANDX Special Limited Partner Interest was cancelled and ceased to exist as of the effective time of the Merger. For information on ANDX’s preferred units, please see Note 7 . The assets of ANDX consist of a network of owned and operated crude oil, refined product and natural gas pipelines; crude oil and water gathering systems; refining logistics assets; terminals with crude oil and refined products storage capacity; rail facilities; marine terminals including storage; bulk petroleum distribution facilities; a trucking fleet; and natural gas processing and fractionation systems and complexes. The assets are located in the western and inland regions of the United States and complement MPLX’s existing business and assets. MPC accounted for its October 1, 2018 acquisition of Andeavor (including acquiring control of ANDX), using the acquisition method of accounting, which required Andeavor assets and liabilities to be recorded by MPC at the acquisition date fair value. The Merger was closed on July 30, 2019, and the results of ANDX have been incorporated into the results of MPLX as of October 1, 2018, which is the date that common control was established. As a result of MPC’s relationship with both MPLX and ANDX, the Merger has been treated as a common control transaction, which requires the recasting of MPLX’s historical results and the recognition of assets acquired and liabilities assumed using MPC’s historical carrying value. The fair value of assets acquired and liabilities assumed shown below represents MPC’s historical carrying values as of October 1, 2018. (In millions) As Originally Reported Adjustments (1) As Adjusted Cash and cash equivalents $ 83 $ (53 ) $ 30 Receivables, net 241 256 497 Inventories 21 — 21 Other current assets (2) 59 (7 ) 52 Equity method investments 731 (89 ) 642 Property, plant and equipment, net 6,709 (427 ) 6,282 Intangibles, net 960 74 1,034 Other noncurrent assets (3) 31 (8 ) 23 Total assets acquired 8,835 (254 ) 8,581 Accounts payable 198 265 463 Other current liabilities (4) 188 (41 ) 147 Long-term debt 4,916 — 4,916 Deferred credits and other long-term liabilities (5) 75 1 76 Total liabilities assumed 5,377 225 5,602 Net assets acquired excluding goodwill 3,458 (479 ) 2,979 Goodwill 7,428 727 8,155 Net assets acquired $ 10,886 $ 248 $ 11,134 (1) Inclusive of activity recorded subsequent to the acquisition of ANDX on July 30, 2019, a portion of which was recorded as a non-cash contribution from MPC. (2) Includes both related party and third party other current assets. (3) Includes both related party and third party other noncurrent assets. (4) Includes accrued liabilities, operating lease liabilities and long-term debt due within one year, as well as related party and third party other current liabilities. (5) Includes deferred revenue and deferred income taxes, as well as related party and third party other noncurrent liabilities. Details of the valuation methodology and significant inputs for fair value measurements are included below. The fair value measurements for equity method investments; property, plant and equipment; intangible assets and long-term debt are based on significant inputs that are not observable in the market and, therefore, represent Level 3 measurements. Goodwill The purchase consideration allocation resulted in the recognition of $8.2 billion in goodwill, which has been allocated between the L&S segment and the G&P segment at $7.2 billion and $1.0 billion , respectively. Inventory The fair value of inventory was recorded at cost as of October 1, 2018, as these items are related to spare parts as well as materials and supplies and approximate fair value. Equity Method Investments The fair value of the equity method investments is $642 million , which was determined based on applying income and market approaches. The income approach relied on the discounted cash flow method and the market approach relied on a market multiple approach considering historical and projected financial results. Discount rates for the discounted cash flow models were based on capital structures for similar market participants and included various risk premiums that account for risks associated with the specific investments. Property, Plant and Equipment The fair value of property, plant and equipment is $6.3 billion , which is based primarily on the cost approach. Key assumptions in the cost approach include determining the replacement cost by evaluating recent purchases of similar assets or published data, and adjusting replacement cost for economic and functional obsolescence, location, normal useful lives, and capacity (if applicable). Acquired Intangible Assets The fair value of the acquired identifiable intangible assets is $1.0 billion , which represents the value of various customer contracts and relationships and other intangible assets. The fair value of customer contracts and relationships is $950 million , which was valued by applying the multi-period excess earnings method, which is an income approach. Key assumptions in the income approach include the underlying contract cash flow estimates, remaining contract term, probability of renewal, growth rates and discount rates. The intangible assets are all finite lived and will be amortized over 2 to 10 years. Debt The fair value of the ANDX unsecured notes was measured using a market approach, based upon the average of quotes for the acquired debt from major financial institutions and a third-party valuation service. Additionally, approximately $1.1 billion of borrowings under revolving credit agreements approximate fair value. The ANDX revolving credit facilities with total capacity of $2.1 billion were terminated upon closing of the Merger and were repaid with borrowings under the MPLX revolving credit facility. Acquisition Costs We recognized $14 million in acquisition costs during 2019 which are reflected in general and administrative expenses. ANDX Revenue and Net Income For the three and nine months ended September 30, 2019, we recognized $612 million and $1,789 million of revenues and other income, respectively, related to ANDX. For the three and nine months ended September 30, 2019, we recognized $191 million and $539 million of net income, respectively, related to ANDX. Pro Forma Financial Information The following unaudited pro forma information combines the historical operations of MPLX and ANDX, giving effect to the Merger as if it had been consummated on January 1, 2018, the beginning of the earliest period presented. Three Months Ended Nine Months Ended (In millions) 2019 2018 2019 2018 Total revenues and other income $ 2,280 $ 2,312 $ 6,725 $ 6,371 Net income attributable to MPLX LP $ 681 $ 679 $ 2,015 $ 1,840 The pro forma information includes adjustments to align accounting policies, which include adjustments for capitalization of assets and treatment of turnaround and planned major maintenance costs. The pro forma information also includes adjustments related to: eliminating transactions between MPLX and ANDX which previously would have been recorded as transactions between related parties; basis differences on equity method investments as a result of recognition of MPC’s investments in ANDX’s equity method investments; depreciation and amortization expense to reflect the increased fair value of property, plant and equipment and increased amortization expense related to identifiable intangible assets; as well as adjustments to interest expense for the amortization of fair value adjustments over the remaining term of ANDX’s outstanding debt, reversal of ANDX’s historical amortization of debt issuance costs and debt discounts and to adjust for the difference in the weighted average interest rate between MPLX’s revolving credit facility and the ANDX revolving credit facilities. The following table presents MPLX’s previously reported Consolidated Balance Sheet Data as of December 31, 2018 retrospectively adjusted for the Merger: December 31, 2018 (In millions) MPLX LP (Previously Reported) Predecessor MPLX LP (Currently Reported) Assets Current assets: Cash and cash equivalents $ 68 $ 9 $ 77 Receivables, net 417 194 611 Current assets - related parties 290 266 556 Inventories 77 21 98 Other current assets 45 53 98 Total current assets 897 543 1,440 Equity method investments 4,174 727 4,901 Property, plant and equipment, net 14,639 6,886 21,525 Intangibles, net 424 935 1,359 Goodwill 2,586 7,430 10,016 Noncurrent assets - related parties 24 — 24 Other noncurrent assets 35 25 60 Total assets 22,779 16,546 39,325 Liabilities Current liabilities: Accounts payable 162 104 266 Accrued liabilities 250 22 272 Current liabilities - related parties 254 248 502 Accrued property, plant and equipment 294 105 399 Accrued interest payable 143 41 184 Other current liabilities 83 562 645 Total current liabilities 1,186 1,082 2,268 Long-term deferred revenue 80 52 132 Long-term liabilities - related parties 43 3 46 Long-term debt 13,392 4,530 17,922 Deferred income taxes 13 1 14 Deferred credits and other liabilities 197 11 208 Total liabilities 14,911 5,679 20,590 Commitments and contingencies (see Note 20) Series A preferred units 1,004 — 1,004 Equity Common unitholders - public 8,336 — 8,336 Common unitholder - MPC (1,612 ) — (1,612 ) Equity of Predecessor — 10,867 10,867 Accumulated other comprehensive loss (16 ) — (16 ) Total MPLX LP partners’ capital 6,708 10,867 17,575 Noncontrolling interests 156 — 156 Total equity 6,864 10,867 17,731 Total liabilities, preferred units and equity $ 22,779 $ 16,546 $ 39,325 Mt. Airy Terminal On September 26, 2018, MPLX acquired an eastern U.S. Gulf Coast export terminal (the “Mt. Airy Terminal”) from Pin Oak Holdings, LLC for total consideration of $451 million . At the time of the acquisition, the terminal included tanks with 4 million barrels of third-party leased storage capacity and a dock with 120 mbpd of capacity. The Mt. Airy Terminal is located on the Mississippi River between New Orleans and Baton Rouge, is in close proximity to several Gulf Coast refineries including MPC’s Garyville Refinery and is near numerous rail lines and pipelines. The Mt. Airy Terminal is accounted for within the L&S segment. In the first quarter of 2019, an adjustment to the initial purchase price was made for approximately $5 million related to the final settlement of the acquisition, which was paid in the first six months of 2019 as shown on the statement of cash flow. This reduced the total purchase price to $446 million and resulted in $336 million of property, plant and equipment, $121 million of goodwill and the remainder being attributable to net liabilities assumed. Goodwill represents the significant growth potential of the terminal due to the multiple pipelines and rail lines which cross the property, the terminal’s position as an aggregation point for liquids growth in the region for both ocean-going vessels and inland barges, the proximity of the terminal to MPC’s Garyville refinery and other refineries in the region as well as the opportunity to construct an additional dock at the site. Refining Logistics and Fuels Distribution Acquisition On February 1, 2018 , MPC and MPLX closed on an agreement for the dropdown of refining logistics assets and fuels distribution services to MPLX. MPC contributed these assets and services in exchange for $4.1 billion in cash and a fixed number of MPLX common units and general partner units of 111,611,111 and 2,277,778 , respectively. The fair value of the common and general partner units issued as of the acquisition date was $4.3 billion based on the closing common unit price as of February 1, 2018 , as recorded on the Consolidated Statements of Equity, for a total purchase price of $8.4 billion . The equity issued consisted of: (i) 85,610,278 common units to MPLX GP, (ii) 18,176,666 common units to MPLX Logistics Holdings LLC and (iii) 7,824,167 common units to MPLX Holdings Inc. MPLX also issued 2,277,778 general partner units to MPLX GP in order to maintain its two percent general partner interest (“GP Interest”) in MPLX. MPC agreed to waive approximately one-third of the first quarter 2018 distributions on the common units issued in connection with this transaction. As a result of this waiver, MPC did not receive $23.7 million of the distributions that would have otherwise accrued on such common units with respect to the first quarter of 2018. Immediately following this transaction, the GP Interest was converted into a non-economic general partner interest. MPLX recorded this transaction on a historical basis as required for transactions between entities under common control. No effect was given to the prior periods as these entities were not considered businesses prior to the February 1, 2018 dropdown. In connection with the dropdown, approximately $830 million of net property, plant and equipment was recorded in addition to $85 million and $130 million of goodwill allocated to MPLX Refining Logistics LLC (“Refining Logistics”) and MPLX Fuels Distribution LLC (“Fuels Distribution”), respectively. Both the refining logistics assets and the fuels distribution services are accounted for within the L&S segment. As of the transaction date, the Refining Logistics assets included 619 tanks with approximately 56 million barrels of storage capacity (crude, finished products and intermediates), 32 rail and truck racks, 18 docks, and gasoline blenders. These assets generate revenue through storage services agreements with MPC. Refining Logistics provides certain services to MPC related to the receipt, storage, throughput, custody and delivery of petroleum products in and through certain storage and logistical facilities and assets associated with MPC’s refineries. |
Equity Method Investments
Equity Method Investments | 9 Months Ended |
Sep. 30, 2019 | |
Equity Method Investments and Joint Ventures [Abstract] | |
Investments and Noncontrolling Interests [Text Block] | Investments and Noncontrolling Interests The following table presents MPLX’s equity method investments at the dates indicated: Ownership as of Carrying value at September 30, September 30, December 31, (In millions, except ownership percentages) 2019 2019 2018 L&S MarEn Bakken Company LLC 25% $ 483 $ 498 Illinois Extension Pipeline Company, L.L.C. 35% 275 275 LOOP LLC 41% 239 226 Andeavor Logistics Rio Pipeline LLC (1) 67% 201 181 Minnesota Pipe Line Company, LLC (1) 17% 192 197 Explorer Pipeline Company 25% 83 90 Other (1) 199 51 Total L&S 1,672 1,518 G&P MarkWest Utica EMG, L.L.C. 56% 2,017 2,039 Sherwood Midstream LLC 50% 502 366 MarkWest EMG Jefferson Dry Gas Gathering Company, L.L.C. 67% 291 236 Rendezvous Gas Services, L.L.C. (1) 78% 174 248 Sherwood Midstream Holdings LLC 54% 159 157 Centrahoma Processing LLC 40% 155 160 Other (1) 212 177 Total G&P 3,510 3,383 Total $ 5,182 $ 4,901 (1) These investments as well as certain investments included within “Other” for both L&S and G&P are investments acquired as part of the Merger. The September 30, 2019 balance reflects all purchase accounting adjustments identified by MPC as part of its acquisition of Andeavor. As a result of the Merger, MPLX LP acquired an ownership interest in Rendezvous Gas Services, L.L.C. (“RGS”), Minnesota Pipe Line Company, LLC (“MNPL”) and Andeavor Logistics Rio Pipeline LLC (“ALRP”), among others. RGS and ALRP have been deemed to be VIEs, however, neither MPLX nor any of its subsidiaries have been deemed to be the primary beneficiary due to voting rights on significant matters. For all of the investments acquired through the Merger, we have the ability to exercise influence through participation in the management committees which make all significant decisions. However, since we have equal or proportionate influence over each committee as a joint interest partner and all significant decisions require the consent of the other investors without regard to economic interest, we have determined that these entities should not be consolidated and apply the equity method of accounting with respect to our investments in each entity. In addition to the investments acquired through the Merger, MarkWest Utica EMG, L.L.C. (“MarkWest Utica EMG”), Sherwood Midstream LLC (“Sherwood Midstream”), MarkWest EMG Jefferson Dry Gas Gathering Company, L.L.C. (“Jefferson Dry Gas”) and Sherwood Midstream Holdings LLC (“Sherwood Midstream Holdings”) are also deemed to be VIEs. However, consistent with the investments above, neither MPLX nor any of its subsidiaries are deemed to be the primary beneficiary due to voting rights on significant matters. Sherwood Midstream has been deemed the primary beneficiary of Sherwood Midstream Holdings due to its controlling financial interest through its authority to manage the joint venture. As a result, Sherwood Midstream consolidates Sherwood Midstream Holdings. Therefore, MPLX also reports its portion of Sherwood Midstream Holdings’ net assets as a component of its investment in Sherwood Midstream. As of September 30, 2019 , MPLX has a 22.9 percent indirect ownership interest in Sherwood Midstream Holdings through Sherwood Midstream. MPLX’s maximum exposure to loss as a result of its involvement with equity method investments includes its equity investment, any additional capital contribution commitments and any operating expenses incurred by the subsidiary operator in excess of its compensation received for the performance of the operating services. MPLX did not provide any financial support to equity method investments that it was not contractually obligated to provide during the nine months ended September 30, 2019 . Summarized financial information for MPLX’s equity method investments for the nine months ended September 30, 2019 and 2018 is as follows: Nine Months Ended September 30, 2019 (1) (In millions) VIEs Non-VIEs Total Revenues and other income $ 479 $ 1,116 $ 1,595 Costs and expenses 251 434 685 Income from operations 228 682 910 Net income 192 605 797 Income from equity method investments (2) $ 89 $ 166 $ 255 Nine Months Ended September 30, 2018 (1) (In millions) VIEs Non-VIEs Total Revenues and other income $ 340 $ 967 $ 1,307 Costs and expenses 202 495 697 Income from operations 138 472 610 Net income 135 417 552 Income from equity method investments (2) $ 44 $ 131 $ 175 (1) The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. (2) Includes the impact of any basis differential amortization or accretion. Summarized balance sheet information for MPLX’s equity method investments as of September 30, 2019 and December 31, 2018 is as follows: September 30, 2019 (1) (In millions) VIEs Non-VIEs Total Current assets $ 378 $ 388 $ 766 Noncurrent assets 5,469 5,164 10,633 Current liabilities 328 254 582 Noncurrent liabilities $ 265 $ 843 $ 1,108 December 31, 2018 (1) (In millions) VIEs Non-VIEs Total Current assets $ 252 $ 415 $ 667 Noncurrent assets 3,796 5,290 9,086 Current liabilities 158 280 438 Noncurrent liabilities $ 191 $ 845 $ 1,036 (1) The financial information for equity method investments at September 30, 2019 and December 31, 2018 is inclusive of financial information of equity method investments acquired as part of the Merger. See Note 3 for additional details. As of September 30, 2019 and December 31, 2018 , the carrying value of MPLX’s equity method investments in the G&P segment exceeded the underlying net assets of its investees by approximately $1.0 billion and $1.3 billion , respectively. As of September 30, 2019 and December 31, 2018 , the carrying value of MPLX’s equity method investments in the L&S segment exceeded the underlying net assets of its investees by $329 million and $187 million , respectively. This basis difference is being amortized into net income over the remaining estimated useful lives of the underlying assets, except for $542 million and $167 million |
Related Party Agreements and Tr
Related Party Agreements and Transactions | 9 Months Ended |
Sep. 30, 2019 | |
Related Party Transactions [Abstract] | |
Related Party Agreements and Transactions | Related Party Agreements and Transactions MPLX engages in transactions with both MPC and certain of its equity method investments as part of its normal business; however, transactions with MPC make up the majority of MPLX’s related party transactions. Transactions with related parties are further described below. Related Party Agreements MPLX has various long-term, fee-based commercial agreements with MPC. Under these agreements, MPLX provides transportation, terminal, fuels distribution, marketing, storage, management, operational and other services to MPC. MPC has committed to provide MPLX with minimum throughput volumes on crude oil, refined products and other fees for storage capacity; a fixed fee for substantially all available capacity for boats and barges under the marine transportation services agreement; operating and management fees; as well as reimbursements for certain direct and indirect costs. In addition, MPLX has obligations to MPC for services provided to MPLX by MPC under omnibus and employee services type agreements as well as other various agreements. Many of the material related party agreements acquired through the merger were consistent with MPLX’s existing agreements; however, one additional agreement that MPLX is now a party to is a keep-whole commodity agreement. ANDX was responsible for processing gas for certain producers under keep-whole processing agreements. Under a keep-whole agreement, the producer transfers title to the NGLs produced during gas processing, and the processor, in exchange, delivers to the producer natural gas with a BTU content equivalent to the NGLs removed. The operating margin for these contracts is typically determined by the spread between NGLs sales prices and the price paid to purchase the replacement natural gas (“Shrink Gas”). ANDX entered into the “Keep-Whole Commodity Agreement” with its sponsor at that time, whereby the sponsor paid ANDX a processing fee for NGLs related to keep-whole agreements and delivered Shrink Gas to the producers on its behalf. ANDX then paid its Sponsor a marketing fee in exchange for assuming the commodity risk. This agreement was modified in 2016 which adjusted the contract to provide for a tiered pricing structure for different NGL production levels. This contract continued as part of MPC’s acquisition of Andeavor, and MPLX is now party to this agreement. MPLX is also party to a loan agreement with MPC Investment LLC (“MPC Investment”) (the “MPC Loan Agreement”). Under the terms of the MPC Loan Agreement, MPC Investment makes a loan or loans to MPLX on a revolving basis as requested by MPLX and as agreed to by MPC Investment. On April 27, 2018, MPLX and MPC Investment amended and restated the MPC Loan Agreement to, among other things, increase the borrowing capacity under the MPC Loan Agreement from $500 million to $1.0 billion . In connection with the Merger, on July 31, 2019, MPLX and MPC Investment entered into a second amendment to the MPC Loan Agreement to increase the borrowing capacity under the MPC Loan Agreement to $1.5 billion in aggregate principal amount of all loans outstanding at any one time. The entire unpaid principal amount of the loan, together with all accrued and unpaid interest and other amounts (if any), shall become due and payable on July 31, 2024 , provided that MPC Investment may demand payment of all or any portion of the outstanding principal amount of the loan, together with all accrued and unpaid interest and other amounts (if any), at any time prior to July 31, 2024 . Borrowings under the MPC Loan Agreement prior to July 31, 2019 bore interest at LIBOR plus 1.50 percent while borrowings as of and after July 31, 2019 will bear interest at LIBOR plus 1.25 percent or such lower rate as would be applicable to such loans under the MPLX Credit Agreement. Activity on the MPC Loan Agreement was as follows: (In millions) Nine Months Ended September 30, 2019 Year Ended December 31, 2018 Borrowings $ 6,935 $ 3,962 Average interest rate of borrowings 3.640 % 3.473 % Repayments $ 6,810 $ 4,347 Outstanding balance at end of period (1) $ 125 $ — (1) Included in “Current liabilities - related parties” on the Consolidated Balance Sheets. Prior to the Merger, ANDX was also party to a loan agreement with MPC (“ANDX-MPC Loan Agreement”). This facility was entered into on December 21, 2018, with a borrowing capacity of $500 million . In connection with the Merger, on July 31, 2019, MPLX repaid the entire outstanding balance and terminated the ANDX-MPC Loan Agreement. Activity on the ANDX-MPC Loan Agreement prior to the Merger was as follows: (In millions) Nine Months Ended September 30, 2019 Borrowings $ 773 Average interest rate of borrowings 4.249 % Repayments $ 773 Outstanding balance at end of period $ — Related Party Revenue Related party sales to MPC consist of crude oil and refined products pipeline transportation services based on tariff/contracted rates; storage, terminal and fuels distribution services based on contracted rates; and marine transportation services. Related party sales to MPC also consist of revenue related to volume deficiency credits. MPLX also has operating agreements with MPC under which it receives a fee for operating MPC’s retained pipeline assets and a fixed annual fee for providing oversight and management services required to run the marine business. MPLX also receives management fee revenue for engineering, construction and administrative services for operating certain of its equity method investments. Revenue received from related parties included on the Consolidated Statements of Income was as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Service revenues - related parties MPC $ 899 $ 568 $ 2,549 $ 1,588 Rental income - related parties MPC 293 190 904 525 Product sales - related parties (1) MPC 32 18 109 35 Other income - related parties MPC 14 11 34 31 Other 17 15 50 42 Total Other income - related parties $ 31 $ 26 $ 84 $ 73 (1) There were additional product sales to MPC that net to zero within the consolidated financial statements as the transactions are recorded net due to the terms of the agreements under which such product was sold. For the three and nine months ended September 30, 2019 , these sales totaled $301 million and $819 million , respectively. For the three and nine months ended September 30, 2018 , these sales totaled $137 million and $328 million , respectively. Related Party Expenses MPC provides executive management services and certain general and administrative services to MPLX under the terms of omnibus agreements (“Omnibus charges”). Omnibus charges included in “Rental cost of sales - related parties” primarily relate to services that support MPLX’s rental operations and maintenance of assets available for rent. Omnibus charges included in “Purchases - related parties” primarily relate to services that support MPLX’s operations and maintenance activities, as well as compensation expenses. Omnibus charges included in “General and administrative expenses” primarily relate to services that support MPLX’s executive management, accounting and human resources activities. MPLX LP also obtains employee services from MPC under employee services agreements (“ESA charges”). ESA charges for personnel directly involved in or supporting operations and maintenance activities related to rental services are classified as “Rental cost of sales - related parties.” ESA charges for personnel directly involved in or supporting operations and maintenance activities related to other services are classified as “Purchases - related parties.” ESA charges for personnel involved in executive management, accounting and human resources activities are classified as “General and administrative expenses.” In addition to these agreements, MPLX purchases products from MPC, makes payments to MPC in its capacity as general contractor to MPLX, and has certain rent and lease agreements with MPC. Expenses incurred from MPC under the omnibus and employee services agreements as well as other purchases from MPC included on the Consolidated Statements of Income are as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Rental cost of sales - related parties $ 45 $ 1 $ 124 $ 2 Purchases - related parties MPC 297 228 878 628 Other 6 — 16 — General and administrative expenses 59 48 174 131 Total $ 407 $ 277 $ 1,192 $ 761 Some charges incurred under the omnibus and ESA agreements are related to engineering services and are associated with assets under construction. These charges are added to “Property, plant and equipment, net” on the Consolidated Balance Sheets. For the three and nine months ended September 30, 2019 , these charges totaled $48 million and $127 million , respectively. For the three and nine months ended September 30, 2018 , these charges totaled $46 million and $109 million , respectively. Related Party Assets and Liabilities Assets and liabilities with related parties appearing on the Consolidated Balance Sheets are detailed in the table below. This table identifies the various components of related party assets and liabilities, including those associated with leases (see Note 19 for additional information) and deferred revenue on minimum volume commitments. During the nine months ended September 30, 2019 and the year ended December 31, 2018 , MPC did not meet its minimum committed volumes based on the agreements identified above. If MPC fails to meet its minimum committed volumes, MPC will pay MPLX a deficiency payment based on the terms of the agreement. The deficiency amounts are recorded as “Current liabilities - related parties.” In many cases, MPC may then apply the amount of any such deficiency payments as a credit for volumes in excess of its minimum volume commitment in future periods under the terms of the applicable agreements. MPLX recognizes related party revenues for the deficiency payments when credits are used for volumes in excess of minimum quarterly volume commitments, where it is probable the customer will not use the credit in future periods or upon the expiration of the credits. The use or expiration of the credits is a decrease in “Current liabilities - related parties.” In addition, capital projects MPLX is undertaking at the request of MPC are reimbursed in cash and recognized in income over the remaining term of the applicable agreements or in some cases as an equity contribution from its sponsor. (In millions) September 30, 2019 December 31, 2018 Current assets - related parties Receivables - MPC $ 623 $ 542 Receivables - Other 22 9 Prepaid - MPC 6 5 Other - MPC 6 — Lease Receivables - MPC 3 — Total 660 556 Noncurrent assets - related parties Long-term receivables - MPC 20 24 Right of use assets - MPC 232 — Long-term lease receivables - MPC 44 — Unguaranteed residual asset - MPC 6 — Total 302 24 Current liabilities - related parties Payables - MPC 477 360 Payables - Other 34 76 Operating lease liabilities - MPC 1 — Deferred revenue - Minimum volume deficiencies - MPC 40 57 Deferred revenue - Project reimbursements - MPC 9 9 Deferred revenue - Other 1 — Total 562 502 Long-term liabilities - related parties Long-term operating lease liabilities - MPC 231 — Long-term deferred revenue - Project reimbursements - MPC 53 46 Long-term deferred revenue - Other 9 — Total $ 293 $ 46 Other Related Party Transactions From time to time, MPLX may also sell to or purchase from related parties, assets and inventory at the lesser of average unit cost or net realizable value. Sales to related parties for the nine months ended September 30, 2019 and 2018 were $1 million and $3 million , respectively. Purchases from related parties for the nine months ended September 30, 2019 and 2018 were less than $1 million and $2 million , respectively. |
Net Income Per Limited Partner
Net Income Per Limited Partner Unit | 9 Months Ended |
Sep. 30, 2019 | |
Earnings Per Share [Abstract] | |
Net Income Per Limited Partner Unit | Net Income/(Loss) Per Limited Partner Unit Net income/(loss) per unit applicable to common units is computed by dividing net income/(loss) attributable to MPLX LP less income/(loss) allocated to participating securities by the weighted average number of common units outstanding. Additional MPLX common units and MPLX Series B preferred units were issued on July 30, 2019 as a result of the merger with ANDX as discussed in Note 3. Distributions declared on these newly issued common and Series B preferred units are a reduction to income available to MPLX common unit holders due to their participation in distributions of income. The classes of participating securities include common units, certain equity-based compensation awards, Series A preferred units and Series B preferred units for the three and nine months ended September 30, 2019 and common units, certain equity-based compensation awards and Series A preferred units for the three and nine months ended September 30, 2018. For the three and nine months ended September 30, 2019 and 2018 , MPLX had dilutive potential common units consisting of certain equity-based compensation awards. Potential common units omitted from the diluted earnings per unit calculation for the three and nine months ended September 30, 2019 and 2018 were less than 1 million . Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Net income attributable to MPLX LP $ 629 $ 510 $ 1,614 $ 1,384 Less: Distributions declared on Series A preferred units (1) 20 19 61 55 Distributions declared on Series B preferred units (1) 10 — 31 — Limited partners’ distributions declared on MPLX common units (including common units of general partner) (1)(2) 704 507 1,919 1,471 Undistributed net loss attributable to MPLX LP $ (105 ) $ (16 ) $ (397 ) $ (142 ) (1) See Note 7 for distribution information. (2) The three and nine months ended September 30, 2019 amounts are net of $12.5 million and $25 million of quarterly waived distributions with respect to units held by MPC and its affiliates. Three Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 704 $ 20 $ 10 $ 734 Undistributed net loss attributable to MPLX LP (105 ) — — (105 ) Net income attributable to MPLX LP (1) $ 599 $ 20 $ 10 $ 629 Weighted average units outstanding: Basic (2) 974 31 — 1,005 Diluted (2) 975 31 — 1,006 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.61 Diluted $ 0.61 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. (2) The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire three months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. Three Months Ended September 30, 2018 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 507 $ 19 $ 526 Undistributed net loss attributable to MPLX LP (16 ) — (16 ) Net income attributable to MPLX LP (1) $ 491 $ 19 $ 510 Weighted average units outstanding: Basic 794 31 825 Diluted 794 31 825 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.62 Diluted $ 0.62 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. Nine Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit: Net income attributable to MPLX LP: Distributions declared $ 1,919 $ 61 $ 31 $ 2,011 Undistributed net loss attributable to MPLX LP (397 ) — — (397 ) Net income attributable to MPLX LP (1) $ 1,522 $ 61 $ 31 $ 1,614 Weighted average units outstanding: Basic (2) 855 31 — 886 Diluted (2) 855 31 — 886 Net income attributable to MPLX LP per limited partner unit: Basic $ 1.78 Diluted $ 1.78 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. (2) The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire nine months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. Nine Months Ended September 30, 2018 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit: Net income attributable to MPLX LP: Distributions declared $ 1,471 $ 55 $ 1,526 Undistributed net loss attributable to MPLX LP (142 ) — (142 ) Net income attributable to MPLX LP (1) $ 1,329 $ 55 $ 1,384 Weighted average units outstanding: Basic 750 31 781 Diluted 750 31 781 Net income attributable to MPLX LP per limited partner unit: Basic $ 1.77 Diluted $ 1.77 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. |
Equity
Equity | 9 Months Ended |
Sep. 30, 2019 | |
Equity [Abstract] | |
Equity | Equity The changes in the number of common units outstanding during the nine months ended September 30, 2019 are summarized below: (In units) Common Balance at December 31, 2018 794,089,518 Unit-based compensation awards 287,019 Issuance of units in connection with the Merger 262,829,592 Conversion of Series A preferred units 1,148,330 Balance at September 30, 2019 1,058,354,459 In connection with the Merger and as discussed in Note 3, each common unit held by ANDX’s public unitholders was converted into the right to receive 1.135 MPLX common units while ANDX common units held by certain affiliates of MPC were converted into the right to receive 1.0328 MPLX common units. This resulted in the issuance of MPLX common units of approximately 102 million units to public unitholders and approximately 161 million units to MPC in connection with MPLX's acquisition of ANDX on July 30, 2019. Also during the quarter, certain holders of Series A preferred units exercised their rights to convert their Series A preferred units into common units as discussed in Note 8. Series B Preferred Units Prior to the Merger, ANDX issued 600,000 units of 6.875 percent Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units representing limited partner interests of ANDX at a price to the public of $1,000 per unit. Upon completion of the Merger the ANDX preferred units converted to preferred units of MPLX representing substantially equivalent limited partnership interests in MPLX (the “Series B preferred units”). The Series B preferred units are pari passu with the Series A preferred units with respect to distribution rights and rights upon liquidation. Distributions on the Series B preferred units are payable semi-annually in arrears on the 15th day, or the first business day thereafter, of February and August of each year through and including February 15, 2023. After February 15, 2023, the distribution will be made quarterly in arrears on the 15th day, or the first business day thereafter, of February, May, August and November of each year to holders of record as of the record date, which is generally the close of business on the first business day of the month of the applicable payment date. The changes in the Series B preferred unit balance from the Merger through September 30, 2019 are summarized below and are included in the Consolidated Balance Sheets and Consolidated Statements of Equity within “Equity of Predecessor” for the period prior to the Merger and within “Series B preferred units” for the period following the Merger. The Series B preferred units are recorded at fair value as of July 30, 2019. (In millions) Series B Preferred Units Beginning Balance at the Merger date $ 615 Net income allocated 7 Distributions received by Series B preferred unitholders (21 ) Balance at September 30, 2019 $ 601 Cash distributions – In accordance with the MPLX partnership agreement, on October 25, 2019 , MPLX declared a quarterly cash distribution for the third quarter of 2019 , totaling $704 million , or $0.6775 per common unit, which includes common units issued on July 30, 2019 as a result of the Merger. This rate will also be received by Series A preferred unitholders. These distributions will be paid on November 14, 2019 to common unitholders of record on November 4, 2019 . The $704 million of common unit distributions is net of $12.5 million in quarterly waived distributions by MPC. This waiver was instituted in 2017 under the terms of ANDX’s historical partnership agreement with Andeavor. The waiver will remain in effect through 2019 which is the original term of the waiver agreement. Additionally, as a result of the Merger, 600,000 ANDX preferred units were converted into 600,000 preferred units of MPLX. Series B preferred unitholders are entitled to receive, when and if declared by the board, a fixed distribution of $68.75 per unit, per annum, payable semi-annually in arrears on February 15 and August 15, or the first business day thereafter. MPLX made a cash distribution to holders of the Series B preferred unitholders on August 15, 2019 for approximately $21 million . Quarterly distributions for 2019 and 2018 are summarized below: (Per common unit) 2019 2018 March 31, $ 0.6575 $ 0.6175 June 30, 0.6675 0.6275 September 30, $ 0.6775 $ 0.6375 The allocation of total quarterly cash distributions to limited and preferred unitholders is as follows for the three and nine months ended September 30, 2019 and 2018 . MPLX’s distributions are declared subsequent to quarter end; therefore, the following table represents total cash distributions applicable to the period in which the distributions were earned. Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Common and preferred unit distributions: Common unitholders, includes common units of general partner $ 704 $ 507 $ 1,919 $ 1,471 Series A preferred unit distributions 20 19 61 55 Series B preferred unit distributions 10 — 31 — Total cash distributions declared $ 734 $ 526 $ 2,011 $ 1,526 The distribution on common units for the three and nine months ended September 30, 2019 includes the impact of the issuance of approximately 102 million units issued to public unitholders and approximately 161 million units issued to MPC in connection with the Merger. Due to the timing of the closing, distributions presented in the table above for the second quarter include distributions on MPLX common units issued to former ANDX unitholders in connection with the Merger. Due to the waiver mentioned above, the distributions on common units exclude $12.5 million of waived distributions for the three months ended September 30, 2019 and $25 million of waived distributions for the nine months ended September 30, 2019. Also included in the table above is $10 million of distributions earned by the Series B preferred units for the three months ended September 30, 2019 as well as $21 million |
Series A Preferred Units
Series A Preferred Units | 9 Months Ended |
Sep. 30, 2019 | |
Temporary Equity Disclosure [Abstract] | |
Redeemable Preferred Units | pleted the private placement of approximately 30.8 million 6.5 percent Series A Convertible preferred units for a cash purchase price of $32.50 per unit. The aggregate net proceeds of approximately $984 million from the sale of the preferred units were used for capital expenditures, repayment of debt and general business purposes. The Series A preferred units rank senior to all common units and pari passu with all Series B preferred units with respect to distributions and rights upon liquidation. The holders of the Series A preferred units received cumulative quarterly distributions equal to $0.528125 per unit for each quarter prior to the second quarter of 2018. Beginning with the second quarter of 2018, the holders of the Series A preferred units are entitled to receive, when and if declared by the board, a quarterly distribution equal to the greater of $0.528125 per unit or the amount of distributions they would have received on an as converted basis. On October 25, 2019 , MPLX declared a quarterly cash distribution of $0.6775 per common unit for the third quarter of 2019 . Holders of the Series A preferred units will receive the common unit rate in lieu of the lower $0.528125 base amount. The holders may convert their Series A preferred units into common units at any time, in full or in part, subject to minimum conversion amounts and conditions. After the fourth anniversary of the issuance date, MPLX may convert the Series A preferred units into common units at any time, in whole or in part, subject to certain minimum conversion amounts and conditions, if the closing price of MPLX LP common units is greater than $48.75 for the 20-day trading period immediately preceding the conversion notice date. The conversion rate for the Series A preferred units shall be the quotient of (a) the sum of (i) $32.50, plus (ii) any unpaid cash distributions on the applicable preferred unit, divided by (b) $32.50, subject to adjustment for unit distributions, unit splits and similar transactions. The holders of the Series A preferred units are entitled to vote on an as-converted basis with the common unitholders and have certain other class voting rights with respect to any amendment to the MPLX partnership agreement that would adversely affect any rights, preferences or privileges of the preferred units. In addition, upon certain events involving a change of control, the holders of preferred units may elect, among other potential elections, to convert their Series A preferred units to common units at the then change of control conversion rate. On September 20, 2019, certain holders exercised their right to convert a total of 1.2 million Series A preferred units into common units. As a result of the transaction, approximately 29.6 million Series A preferred units remain outstanding as of September 30, 2019. The changes in the redeemable preferred balance from December 31, 2018 through September 30, 2019 are summarized below: (In millions) Redeemable Series A Preferred Units Balance at December 31, 2018 $ 1,004 Net income allocated 61 Distributions received by Series A preferred unitholders (61 ) Conversion of Series A preferred units to common units (36 ) Balance at September 30, 2019 $ 968 The Series A preferred units are considered redeemable securities under GAAP due to the existence of redemption provisions upon a deemed liquidation event which is outside MPLX’s control. Therefore, they are presented as temporary equity in the mezzanine section of the Consolidated Balance Sheets. The Series A preferred units have been recorded at their issuance date fair value, net of issuance costs. Income allocations increase the carrying value and declared distributions decrease the carrying value of the Series A preferred units. As the Series A preferred units are not currently redeemable and not probable of becoming redeemable, adjustment to the initial carrying amount is not necessary and would only be required if it becomes probable that the Series A preferred units would become redeemable. |
Segment Information
Segment Information | 9 Months Ended |
Sep. 30, 2019 | |
Segment Reporting [Abstract] | |
Segment Reporting Disclosure [Text Block] | Segment Information MPLX’s chief operating decision maker is the chief executive officer (“CEO”) of its general partner. The CEO reviews MPLX’s discrete financial information, makes operating decisions, assesses financial performance and allocates resources on a type of service basis. MPLX has two reportable segments: L&S and G&P. Each of these segments is organized and managed based upon the nature of the products and services it offers. • L&S – transports, stores, distributes and markets crude oil, asphalt, refined petroleum products and water. Also includes an inland marine business, terminals, rail facilities, storage caverns and refining logistics. • G&P – gathers, processes and transports natural gas; and gathers, transports, fractionates, stores and markets NGLs. Our CEO evaluates the performance of our segments using Segment Adjusted EBITDA. Amounts included in net income and excluded from Segment Adjusted EBITDA include: (i) depreciation and amortization; (ii) provision/(benefit) for income taxes; (iii) amortization of deferred financing costs; (iv) extinguishment of debt; (v) non-cash equity-based compensation; (vi) impairment expense; (vii) net interest and other financial costs; (viii) income/(loss) from equity method investments; (ix) distributions and adjustments related to equity method investments; (x) unrealized derivative gains/(losses); (xi) acquisition costs; (xii) noncontrolling interest; and (xiii) other adjustments as deemed necessary. These items are either: (i) believed to be non-recurring in nature; (ii) not believed to be allocable or controlled by the segment; or (iii) are not tied to the operational performance of the segment. The tables below present information about revenues and other income, capital expenditures and total assets for our reportable segments: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 L&S Service revenue $ 976 $ 602 $ 2,787 $ 1,682 Rental income 304 191 935 526 Product related revenue 22 5 57 10 Income from equity method investments 60 43 159 123 Other income 17 12 45 36 Total segment revenues and other income (1) 1,379 853 3,983 2,377 Segment Adjusted EBITDA (2) 766 547 1,895 1,510 Maintenance capital expenditures 57 31 128 78 Growth capital expenditures 216 78 618 325 G&P Service revenue 555 422 1,627 1,154 Rental income 88 88 260 251 Product related revenue 207 311 714 831 Income from equity method investments 35 21 96 52 Other income 16 17 45 45 Total segment revenues and other income (1) 901 859 2,742 2,333 Segment Adjusted EBITDA (2) 399 390 1,120 1,054 Maintenance capital expenditures 18 9 46 20 Growth capital expenditures $ 302 $ 380 $ 861 $ 1,057 (1) Within the total segment revenues and other income amounts presented above, third party revenues for the L&S segment were $182 million and $498 million for the three and nine months ended September 30, 2019 , respectively, and $82 million and $227 million for the three and nine months ended September 30, 2018 , respectively. Third party revenues for the G&P segment were $843 million and $2,581 million for the three and nine months ended September 30, 2019 , respectively, and $828 million and $2,262 million for the three and nine months ended September 30, 2018 , respectively. (2) See below for the reconciliation from Segment Adjusted EBITDA to net income. (In millions) September 30, 2019 December 31, 2018 Segment assets Cash and cash equivalents $ 41 $ 77 L&S 20,579 19,963 G&P 20,661 19,285 Total assets $ 41,281 $ 39,325 The table below provides a reconciliation between net income and Segment Adjusted EBITDA. Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Reconciliation to Net income: L&S Segment Adjusted EBITDA $ 766 $ 547 $ 1,895 $ 1,510 G&P Segment Adjusted EBITDA 399 390 1,120 1,054 Total reportable segments 1,165 937 3,015 2,564 Depreciation and amortization (1) (302 ) (201 ) (916 ) (565 ) Provision for income taxes (4 ) (3 ) (2 ) (8 ) Amortization of deferred financing costs (10 ) (14 ) (29 ) (45 ) Non-cash equity-based compensation (5 ) (6 ) (17 ) (15 ) Net interest and other financial costs (223 ) (139 ) (657 ) (389 ) Income from equity method investments 95 64 255 175 Distributions/adjustments related to equity method investments (145 ) (112 ) (399 ) (314 ) Unrealized derivative gains/(losses) (2) 11 (17 ) 7 (18 ) Acquisition costs (9 ) — (14 ) (3 ) Other (1 ) — (1 ) — Adjusted EBITDA attributable to noncontrolling interests 9 7 23 13 Adjusted EBITDA attributable to Predecessor (3) 108 — 770 — Net income $ 689 $ 516 $ 2,035 $ 1,395 (1) Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 , respectively. (2) MPLX makes a distinction between realized and unrealized gains and losses on derivatives. During the period when a derivative contract is outstanding, changes in the fair value of the derivative are recorded as an unrealized gain or loss. When a derivative contract matures or is settled, the previously recorded unrealized gain or loss is reversed and the realized gain or loss of the contract is recorded. (3) The adjusted EBITDA adjustments related to Predecessor are excluded from adjusted EBITDA attributable to MPLX LP prior to the Merger. |
Inventories
Inventories | 9 Months Ended |
Sep. 30, 2019 | |
Inventory Disclosure [Abstract] | |
Inventories | Inventories Inventories consist of the following: (In millions) September 30, 2019 December 31, 2018 NGLs $ 4 $ 9 Line fill 8 9 Spare parts, materials and supplies 92 80 Total inventories $ 104 $ 98 |
Property, Plant and Equipment
Property, Plant and Equipment | 9 Months Ended |
Sep. 30, 2019 | |
Property, Plant and Equipment [Abstract] | |
Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment with associated accumulated depreciation is shown below: (In millions) September 30, 2019 December 31, 2018 Natural gas gathering and NGL transportation pipelines and facilities $ 6,909 $ 6,349 Processing, fractionation and storage facilities 6,113 6,045 Pipelines and related assets 5,058 5,111 Barges and towing vessels 675 621 Terminals and related assets 2,422 2,757 Refinery related assets 1,398 1,447 Land, building, office equipment and other 2,324 1,562 Construction-in-progress 1,429 1,321 Total 26,328 25,213 Less accumulated depreciation 4,436 3,688 Property, plant and equipment, net $ 21,892 $ 21,525 |
Fair Value Measurements
Fair Value Measurements | 9 Months Ended |
Sep. 30, 2019 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | Fair Value Measurements Fair Values – Recurring Fair value measurements and disclosures relate primarily to MPLX’s derivative positions as discussed in Note 13 . The following table presents the financial instruments carried at fair value on a recurring basis as of September 30, 2019 and December 31, 2018 by fair value hierarchy level. MPLX has elected to offset the fair value amounts recognized for multiple derivative contracts executed with the same counterparty. September 30, 2019 December 31, 2018 (In millions) Assets Liabilities Assets Liabilities Significant unobservable inputs (Level 3) Embedded derivatives in commodity contracts $ — $ (54 ) $ — $ (61 ) Total carrying value on Consolidated Balance Sheets $ — $ (54 ) $ — $ (61 ) Level 3 instruments include all NGL transactions and embedded derivatives in commodity contracts. The embedded derivative liability relates to a natural gas purchase commitment embedded in a keep-whole processing agreement. The fair value calculation for these Level 3 instruments used significant unobservable inputs including: (1) NGL prices interpolated and extrapolated due to inactive markets ranging from $0.41 to $1.07 and (2) the probability of renewal of 93 percent for the first five-year term and 82.5 percent for the second five-year term of the gas purchase commitment and related keep-whole processing agreement. Increases or decreases in the fractionation spread result in an increase or decrease in the fair value of the embedded derivative liability, respectively. An increase in the probability of renewal would result in an increase in the fair value of the related embedded derivative liability. Beyond the embedded derivative discussed above, we had no outstanding commodity contracts as of September 30, 2019 or December 31, 2018 . Changes in Level 3 Fair Value Measurements The following table is a reconciliation of the net beginning and ending balances recorded for net assets and liabilities classified as Level 3 in the fair value hierarchy. Three Months Ended September 30, 2019 Three Months Ended September 30, 2018 (In millions) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Fair value at beginning of period $ — $ (65 ) $ (2 ) $ (66 ) Total gains/(losses) (realized and unrealized) included in earnings (1) — 9 (1 ) (19 ) Settlements — 2 1 3 Fair value at end of period — (54 ) (2 ) (82 ) The amount of total gains/(losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to liabilities still held at end of period $ — $ 9 $ (2 ) $ (19 ) (1) Gains and losses on commodity derivative contracts classified as Level 3 are recorded in “Product sales” on the Consolidated Statements of Income. Gains and losses on derivatives embedded in commodity contracts are recorded in “Purchased product costs” and “Cost of revenues” on the Consolidated Statements of Income. Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 (In millions) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Fair value at beginning of period $ — $ (61 ) $ (2 ) $ (64 ) Total gains/(losses) (realized and unrealized) included in earnings (1) — 2 (2 ) (27 ) Settlements — 5 2 9 Fair value at end of period — (54 ) (2 ) (82 ) The amount of total gains/(losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to liabilities still held at end of period $ — $ 5 $ (1 ) $ (21 ) (1) Gains and losses on commodity derivative contracts classified as Level 3 are recorded in “Product sales” on the Consolidated Statements of Income. Gains and losses on derivatives embedded in commodity contracts are recorded in “Purchased product costs” and “Cost of revenues” on the Consolidated Statements of Income. Fair Values – Reported MPLX’s primary financial instruments are cash and cash equivalents, receivables, receivables from related parties, accounts payable, payables to related parties and long-term debt. MPLX’s fair value assessment incorporates a variety of considerations, including (1) the duration of the instruments, (2) MPC’s investment-grade credit rating and (3) the historical incurrence of and expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk. MPLX believes the carrying values of its current assets and liabilities approximate fair value. The recorded value of the amounts outstanding under the bank revolving credit facility, if any, approximates fair value due to the variable interest rate that approximates current market rates. Derivative instruments are recorded at fair value, based on available market information (see Note 13 ). The fair value of MPLX’s long-term debt is estimated based on recent market non-binding indicative quotes. The fair value of the SMR liability is estimated using a discounted cash flow approach based on the contractual cash flows and MPLX’s unsecured borrowing rate. The long-term debt and SMR liability fair values are considered Level 3 measurements. The following table summarizes the fair value and carrying value of the long-term debt, excluding finance leases, and SMR liability: September 30, 2019 December 31, 2018 (In millions) Fair Value Carrying Value Fair Value Carrying Value Long-term debt $ 21,290 $ 19,789 $ 18,070 $ 18,511 SMR liability $ 93 $ 82 $ 92 $ 86 |
Derivative Financial Instrument
Derivative Financial Instruments | 9 Months Ended |
Sep. 30, 2019 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Derivative Instruments and Hedging Activities Disclosure [Text Block] | Derivative Financial Instruments As of September 30, 2019 , MPLX had no outstanding commodity contracts beyond the embedded derivative discussed below. Embedded Derivative - MPLX has a natural gas purchase commitment embedded in a keep-whole processing agreement with a producer customer in the Southern Appalachian region expiring in December 2022. The customer has the unilateral option to extend the agreement for two consecutive five-year terms through December 2032. For accounting purposes, the natural gas purchase commitment and the term extending options have been aggregated into a single compound embedded derivative. The probability of the customer exercising its options is determined based on assumptions about the customer’s potential business strategy decision points that may exist at the time they would elect whether to renew the contract. The changes in fair value of this compound embedded derivative are based on the difference between the contractual and index pricing, the probability of the producer customer exercising its option to extend and the estimated favorability of these contracts compared to current market conditions. The changes in fair value are recorded in earnings through “Purchased product costs” on the Consolidated Statements of Income. As of September 30, 2019 and December 31, 2018 , the estimated fair value of this contract was a liability of $ 54 million and $ 61 million , respectively. Certain derivative positions are subject to master netting agreements, therefore, MPLX has elected to offset derivative assets and liabilities that are legally permissible to be offset. As of September 30, 2019 and December 31, 2018 , there were no derivative assets or liabilities that were offset on the Consolidated Balance Sheets. The impact of MPLX’s derivative instruments on its Consolidated Balance Sheets is summarized below: (In millions) September 30, 2019 December 31, 2018 Derivative contracts not designated as hedging instruments and their balance sheet location Asset Liability Asset Liability Commodity contracts (1) Other current assets / Other current liabilities $ — $ (5 ) $ — $ (7 ) Other noncurrent assets / Deferred credits and other liabilities — (49 ) — (54 ) Total $ — $ (54 ) $ — $ (61 ) (1) Includes embedded derivatives in commodity contracts as discussed above. For further information regarding the fair value measurement of derivative instruments, including the effect of master netting arrangements or collateral, see Note 12 . There were no material changes to MPLX’s policy regarding the accounting for Level 2 and Level 3 instruments as previously disclosed in MPLX’s Annual Report on Form 10-K for the year ended December 31, 2018 . MPLX does not designate any of its commodity derivative positions as hedges for accounting purposes. The impact of MPLX’s derivative contracts not designated as hedging instruments and the location of gains and losses recognized on the Consolidated Statements of Income is summarized below: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Product sales Realized (loss)/gain $ — $ (1 ) $ — $ (2 ) Unrealized (loss)/gain — (1 ) — — Product sales derivative (loss)/gain — (2 ) — (2 ) Purchased product costs Realized (loss)/gain (2 ) (4 ) (5 ) (10 ) Unrealized gain/(loss) 11 (16 ) 7 (18 ) Purchased product costs derivative (loss)/gain 9 (20 ) 2 (28 ) Cost of revenues Realized (loss)/gain — — — — Unrealized (loss)/gain — — — — Cost of revenues derivative (loss)/gain — — — — Total derivative gain/(loss) $ 9 $ (22 ) $ 2 $ (30 ) |
Debt
Debt | 9 Months Ended |
Sep. 30, 2019 | |
Debt Disclosure [Abstract] | |
Debt | Debt MPLX’s outstanding borrowings consist of the following: (In millions) September 30, 2019 December 31, 2018 MPLX LP: Bank revolving credit facility due 2024 $ — $ — Term loan facility due 2021 500 — Floating rate senior notes due September 2021 1,000 — Floating rate senior notes due September 2022 1,000 — 6.250% senior notes due October 2022 266 — 3.500% senior notes due December 2022 486 — 3.375% senior notes due March 2023 500 500 4.500% senior notes due July 2023 989 989 6.375% senior notes due May 2024 381 — 4.875% senior notes due December 2024 1,149 1,149 5.250% senior notes due January 2025 708 — 4.000% senior notes due February 2025 500 500 4.875% senior notes due June 2025 1,189 1,189 4.125% senior notes due March 2027 1,250 1,250 4.250% senior notes due December 2027 732 — 4.000% senior notes due March 2028 1,250 1,250 4.800% senior notes due February 2029 750 750 4.500% senior notes due April 2038 1,750 1,750 5.200% senior notes due March 2047 1,000 1,000 5.200% senior notes due December 2047 487 — 4.700% senior notes due April 2048 1,500 1,500 5.500% senior notes due February 2049 1,500 1,500 4.900% senior notes due April 2058 500 500 Consolidated subsidiaries: MarkWest - 4.500% - 4.875% senior notes, due 2023-2025 23 23 ANDX - 3.500% - 6.375% senior notes, due 2019-2047 690 3,750 ANDX credit facilities — 1,245 Financing lease obligations (1) 20 21 Total 20,120 18,866 Unamortized debt issuance costs (109 ) (97 ) Unamortized discount/premium (311 ) (334 ) Amounts due within one year (510 ) (513 ) Total long-term debt due after one year $ 19,190 $ 17,922 (1) See Note 19 for lease information. Credit Agreement Effective July 30, 2019, in connection with the closing of the Merger, MPLX amended and restated its existing revolving credit facility (the “MPLX Credit Agreement”) to, among other things, increase borrowing capacity to up to $3.5 billion and extend its term from July 2022 to July 2024. During the nine months ended September 30, 2019 , MPLX borrowed $5,310 million under the MPLX Credit Agreement, at an average interest rate of 3.548 percent , and repaid $5,310 million . At September 30, 2019 , MPLX had no outstanding borrowings and $3 million letters of credit outstanding under the MPLX Credit Agreement, resulting in total availability of $3.497 billion , or 99.9 percent of the borrowing capacity . Prior to the Merger, ANDX had revolving credit facilities (the “ANDX credit facilities”) totaling $2.1 billion in borrowing capacity which were set to mature January 29, 2021. The ANDX credit facilities were terminated upon closing of the Merger and repaid with borrowings under the MPLX revolving credit facility. During the nine months ended September 30, 2019 , there were borrowings of $864 million under the ANDX credit facilities, at an average interest rate of 4.129 percent, and repayments of $2.1 billion . Term Loan Agreement On September 26, 2019, MPLX entered into a Term Loan Agreement which provides for a committed term loan facility for up to an aggregate of $ 1 billion available to be drawn in up to four separate borrowings, subject to the satisfaction or waiver of certain customary conditions. If not fully utilized, the term loan commitments expire 90 days after September 26, 2019. Borrowings under the Term Loan Agreement bear interest, at MPLX’s election, at either (i) the Adjusted LIBO Rate (as defined in the Term Loan Agreement) plus a margin ranging from 75.0 basis points to 100.0 basis points per annum, depending on MPLX’s credit ratings, or (ii) the Alternate Base Rate (as defined in the Term Loan Agreement). The proceeds from borrowings under the Term Loan Agreement are to be used to fund the repayment of MPLX’s existing indebtedness and/or for general business purposes. Amounts borrowed under the Term Loan Agreement will be due and payable on September 26, 2021 . As of September 30, 2019 , MPLX had drawn $500 million on the term loan at an average interest rate of 2.795 percent . The Term Loan Agreement contains representations and warranties, affirmative and negative covenants and events of default that we consider to be customary for an agreement of this type and are substantially similar to those contained in the MPLX Credit Agreement, including a covenant that requires MPLX’s ratio of Consolidated Total Debt to Consolidated EBITDA (as both terms are defined in the Term Loan Agreement) for the four prior fiscal quarters not to exceed 5.0 to 1.0 as of the last day of each fiscal quarter (or during the six-month period following certain acquisitions, 5.5 to 1.0). Consolidated EBITDA is subject to adjustments for certain acquisitions completed and capital projects undertaken during the relevant period. Floating Rate Senior Notes On September 9, 2019, MPLX issued $2.0 billion aggregate principal amount of floating rate senior notes in a public offering, consisting of $1.0 billion aggregate principal amount of notes due September 2021 and $1.0 billion aggregate principal amount of notes due September 2022 (collectively, the “Floating Rate Senior Notes”). The Floating Rate Senior Notes were offered at a price to the public of 100 percent of par. The proceeds were used to repay MPLX’s existing indebtedness and/or for general business purposes. Interest on the Floating Rate Senior Notes is payable quarterly in March, June, September and December, commencing on December 9, 2019. The interest rate applicable to the floating rate senior notes due September 2021 is LIBOR plus 0.9 percent per annum . The interest rate applicable to the floating rate senior notes due September 2022 is LIBOR plus 1.1 percent per annum . Senior Notes In connection with the Merger, MPLX assumed ANDX’s outstanding senior notes, which had an aggregate principal amount of $3.75 billion , interest rates ranging from 3.5 percent to 6.375 percent and maturity dates ranging from 2019 to 2047. On September 23, 2019, approximately $3.06 billion aggregate principal amount of ANDX’s outstanding senior notes were exchanged for an aggregate principal amount of approximately $3.06 billion new unsecured senior notes (the “Exchange Notes”) issued by MPLX in an exchange offer and consent solicitation undertaken by MPLX, leaving approximately $690 million aggregate principal of outstanding senior notes held by ANDX. Of this, $500 million is related to 5.5 percent unsecured senior notes due 2019. The principal amount of $500 million and accrued interest of $13.75 million was paid on October 15, 2019 using proceeds from the Floating Rate Senior Notes and borrowings under the Term Loan Agreement discussed above and includes interest through the payoff date. The Exchange Notes consist of $266 million in aggregate principal amount of 6.25 percent unsecured senior notes due October 2022, $486 million in aggregate principal amount of 3.5 percent unsecured senior notes due December 2022, $381 million in aggregate principal amount of 6.375 percent unsecured senior notes due May 2024, $708 million in aggregate principal amount of 5.25 percent unsecured senior notes due January 2025, $732 million in aggregate principal amount of 4.25 percent unsecured senior notes due December 2027 and $487 million in aggregate principal amount of 5.2 percent unsecured senior notes due December 2047. Interest on each series of Exchange Notes is payable semi-annually in arrears according to the table below. Senior Notes Interest payable semi-annually in arrears 6.250% senior notes due October 2022 April 15 th and October 15 th 3.500% senior notes due December 2022 June 1 st and December 1 st 6.375% senior notes due May 2024 May 1 st and November 1 st 5.250% senior notes due January 2025 January 15 th and July 15 th 4.250% senior notes due December 2027 June 1 st and December 1 st 5.200% senior notes due December 2047 June 1 st and December 1 st On December 10, 2018, MPLX redeemed all $750 million of its 5.5 percent senior notes due February 15, 2023, $40 million of which was issued by its MarkWest subsidiary. These notes were redeemed at 101.833 percent of the principal amount, which resulted in a payment of $14 million related to the note premium and the immediate recognition of $46 million of unamortized debt issuance costs. On November 15, 2018, MPLX issued $2.25 billion aggregate principal amount of senior notes in a public offering, consisting of $750 million aggregate principal amount of 4.8 percent unsecured senior notes due February 2029 and $1.5 billion aggregate principal amount of 5.5 percent unsecured senior notes due February 2049 (collectively, the “November 2018 New Senior Notes”). The November 2018 New Senior Notes were offered at a price to the public of 99.432 percent and 98.031 percent of par, respectively. The proceeds were used to repay outstanding borrowings under the MPLX Credit Agreement and the MPC Loan Agreement and to redeem all $750 million of its 5.5 percent senior notes due February 2023, as well as for general business purposes. Interest on each series of the November 2018 New Senior Notes is payable semi-annually in arrears, commencing on February 15, 2019. On February 8, 2018 , MPLX issued $5.5 billion aggregate principal amount of senior notes in a public offering, consisting of $500 million aggregate principal amount of 3.375 percent unsecured senior notes due March 2023 , $1.25 billion aggregate principal amount of 4.0 percent unsecured senior notes due March 2028 , $1.75 billion aggregate principal amount of 4.5 percent unsecured senior notes due April 2038 , $ 1.5 billion aggregate principal amount of 4.7 percent unsecured senior notes due April 2048 , and $500 million aggregate principal amount of 4.9 percent unsecured senior notes due April 2058 (collectively, the “February 2018 New Senior Notes”). The February 2018 New Senior Notes were offered at a price to the public of 99.931 percent , 99.551 percent , 98.811 percent , 99.348 percent , and 99.289 percent of par, respectively. Also on February 8, 2018 , $4.1 billion of the net proceeds were used to repay a 364-day term loan facility, which was drawn on February 1, 2018 to fund the cash portion of the dropdown consideration for Refining Logistics and Fuels Distribution. The remaining proceeds were used to repay outstanding borrowings under the MPLX Credit Agreement and the MPC Loan Agreement, as well as for general business purposes. Interest on each series of notes due in 2023 and 2028 is payable semi-annually in arrears, commencing on September 15, 2018. Interest on each series of notes due in 2038, 2048 and 2058 is payable semi-annually in arrears, commencing on October 15, 2018. |
Revenue
Revenue | 9 Months Ended |
Sep. 30, 2019 | |
Revenue from Contract with Customer [Abstract] | |
Revenue from Contract with Customer [Text Block] | Revenue Disaggregation of Revenue The following tables represent a disaggregation of revenue for each reportable segment for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, 2019 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 95 $ 537 $ 632 Service revenue - related parties 881 18 899 Service revenue - product related — 26 26 Product sales (1) 14 157 171 Product sales - related parties 8 24 32 Total revenues from contracts with customers $ 998 $ 762 1,760 Non-ASC 606 revenue (2) 520 Total revenues and other income $ 2,280 Three Months Ended September 30, 2018 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 34 $ 422 $ 456 Service revenue - related parties 568 — 568 Service revenue - product related — 59 59 Product sales (1) 3 237 240 Product sales - related parties 2 16 18 Total revenues from contracts with customers $ 607 $ 734 1,341 Non-ASC 606 revenue (2) 371 Total revenues and other income $ 1,712 Nine Months Ended September 30, 2019 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 260 $ 1,605 $ 1,865 Service revenue - related parties 2,527 22 2,549 Service revenue - product related — 86 86 Product sales (1) 40 536 576 Product sales - related parties 17 92 109 Total revenues from contracts with customers $ 2,844 $ 2,341 5,185 Non-ASC 606 revenue (2) 1,540 Total revenues and other income $ 6,725 Nine Months Ended September 30, 2018 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 94 $ 1,154 $ 1,248 Service revenue - related parties 1,588 — 1,588 Service revenue - product related — 154 154 Product sales (1) 5 649 654 Product sales - related parties 5 30 35 Total revenues from contracts with customers $ 1,692 $ 1,987 3,679 Non-ASC 606 revenue (2) 1,031 Total revenues and other income $ 4,710 (1) G&P “Product sales” for the three and nine months ended September 30, 2018 includes approximately $1 million and $2 million of revenue related to derivative gains and losses and mark-to-market adjustments, respectively. There were no adjustments for the three and nine months ended September 30, 2019 . (2) Non-ASC 606 Revenue includes rental income, income from equity method investments, derivative gains and losses, mark-to-market adjustments, and other income. Contract Balances Contract assets typically relate to aid in construction agreements where the revenue recognized and MPLX’s rights to consideration for work completed exceeds the amount billed to the customer or for deficiency payments associated with minimum volume commitments which have not been billed to customers. Contract assets are generally classified as current and included in “Other current assets” on the Consolidated Balance Sheets. Contract liabilities, which we refer to as “Deferred revenue” and “Long-term deferred revenue,” typically relate to advance payments for aid in construction agreements and deferred customer credits associated with makeup rights and minimum volume commitments. Related to minimum volume commitments, breakage is estimated and recognized into service revenue in instances where it is probable the customer will not use the credit in future periods. We classify contract liabilities as current or long-term based on the timing of when we expect to recognize revenue. “Receivables, net” primarily relate to our commodity sales. Portions of the “Receivables, net” balance are attributed to the sale of commodity product controlled by MPLX prior to sale while a significant portion of the balance relates to the sale of commodity product on behalf of our producer customers. Both types of transactions are commingled and excluded from the table below. MPLX remits the net sales price back to our producer customers upon completion of the sale. Each period end, certain amounts within accounts payable relate to our payments to producer customers. Such amounts are not deemed material at period end as a result of when we settle with each producer. The table below reflects the changes in our contract balances for the nine-month period ended September 30, 2019 : (In millions) Balance at December 31, 2018 (1) Additions/ (Deletions) Revenue Recognized (2) Balance at September 30, 2019 Contract assets $ 36 $ (6 ) $ (2 ) $ 28 Deferred revenue 13 11 (4 ) 20 Deferred revenue - related parties 65 34 (50 ) 49 Long-term deferred revenue 56 26 — 82 Long-term deferred revenue - related parties $ 52 $ 5 $ — $ 57 (1) Balance represents ASC 606 portion of each respective line item. (2) No significant revenue was recognized related to past performance obligations in the current period. Remaining Performance Obligations The table below includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period. As of September 30, 2019 , the amounts allocated to contract assets and contract liabilities on the Consolidated Balance Sheets are $207 million and are reflected in the amounts below. This will be recognized as revenue as the obligations are satisfied, which is expected to occur over the next 25 years . Further, MPLX does not disclose variable consideration due to volume variability in the table below. (In millions) 2019 $ 408 2020 1,620 2021 1,601 2022 1,567 2023 and thereafter 6,581 Total revenue on remaining performance obligations (1),(2),(3) $ 11,777 (1) All fixed consideration from contracts with customers is included in the amounts presented above. Variable consideration that is constrained or not required to be estimated as it reflects our efforts to perform is excluded. (2) Arrangements deemed implicit leases are included in “Rental income” and are excluded from this table. (3) Only minimum volume commitments that are deemed fixed are included in the table above. MPLX has various minimum volume commitments in processing arrangements that vary based on the actual Btu content of the gas received. These amounts are deemed variable consideration and are excluded from the table above. We do not disclose information on the future performance obligations for any contract with an original expected duration of one year or less. |
Supplemental Cash Flow Informat
Supplemental Cash Flow Information | 9 Months Ended |
Sep. 30, 2019 | |
Supplemental Cash Flow Elements [Abstract] | |
Supplemental Cash Flow Information [Text Block] | Supplemental Cash Flow Information (In millions) September 30, 2019 December 31, 2018 Cash and cash equivalents $ 41 $ 77 Restricted cash (1) — 8 Cash, cash equivalents and restricted cash $ 41 $ 85 (1) The restricted cash balance is included within “Other current assets” on the Consolidated Balance Sheets. Nine Months Ended September 30, (In millions) 2019 2018 Net cash provided by operating activities included: Interest paid (net of amounts capitalized) $ 648 $ 293 Income taxes paid — 1 Cash paid for amounts included in the measurement of lease liabilities Payments on operating leases 62 — Interest payment under finance lease obligations 1 — Net cash provided by financing activities included: Principal payments under finance lease obligations 4 — Non-cash investing and financing activities: Net transfers of property, plant and equipment from materials and supplies inventories 1 2 MPLX terminal lease classification change 21 — ROU assets obtained in exchange for new operating lease obligations 13 — ROU assets obtained in exchange for new finance lease obligations $ 4 $ — The Consolidated Statements of Cash Flows exclude changes to the Consolidated Balance Sheets that did not affect cash. The following is the change of additions to property, plant and equipment related to capital accruals: Nine Months Ended September 30, (In millions) 2019 2018 (Decrease)/increase in capital accruals $ (67 ) $ 90 |
Accumulated Other Comprehensive
Accumulated Other Comprehensive Income | 9 Months Ended |
Sep. 30, 2019 | |
Accumulated Other Comprehensive Income (Loss) [Line Items] | |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Accumulated Other Comprehensive Loss MPLX LP records an accumulated other comprehensive loss on the Consolidated Balance Sheets relating to pension and other post-retirement benefits provided by LOOP LLC (“LOOP”) and Explorer Pipeline Company (“Explorer”) to their employees. MPLX LP is not a sponsor of these benefit plans. The following table shows the changes in “Accumulated other comprehensive loss” by component during the period December 31, 2018 through September 30, 2019 . (In millions) Pension Other Total Balance at December 31, 2018 (1) $ (14 ) $ (2 ) $ (16 ) Other comprehensive income - remeasurements (2) — 1 1 Balance at September 30, 2019 (1) $ (14 ) $ (1 ) $ (15 ) The following table shows the changes in “Accumulated other comprehensive loss” by component during the period December 31, 2017 through September 30, 2018 . (In millions) Pension Benefits Other Post-Retirement Benefits Total Balance at December 31, 2017 (1) $ (13 ) $ (1 ) $ (14 ) Other comprehensive loss - remeasurements (2) (1 ) (1 ) (2 ) Balance at September 30, 2018 (1) $ (14 ) $ (2 ) $ (16 ) (1) These components of “Accumulated other comprehensive loss” are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included on the Consolidated Statements of Income under the caption “Income/(loss) from equity method investments.” |
Equity-Based Compensation Plan
Equity-Based Compensation Plan | 9 Months Ended |
Sep. 30, 2019 | |
Share-based Payment Arrangement [Abstract] | |
Equity-Based Compensation Plan | Equity-Based Compensation Phantom Units – Upon the completion of the Merger, each phantom unit held by employees of ANDX was converted into 1.135 MPLX phantom units. These units retained their original vesting terms and are accounted for using the fair value per unit calculated by MPC as of October 1, 2018. The following is a summary of phantom unit award activity of MPLX LP common units for the nine months ended September 30, 2019 : Number Weighted Outstanding at December 31, 2018 1,154,335 $ 34.34 Granted 207,515 32.96 Legacy ANDX phantom units converted to MPLX phantom units at the Merger 208,533 43.64 Settled (420,374 ) 33.76 Forfeited (42,464 ) 33.53 Outstanding at September 30, 2019 1,107,545 $ 36.09 Performance Units – MPLX grants performance units to certain officers of the general partner and certain eligible MPC officers who make significant contributions to its business. These performance units pay out 75 percent in cash and 25 percent in MPLX LP common units and often contain both market and performance conditions based on various metrics. Market conditions are valued using a Monte Carlo valuation while performance conditions are reevaluated periodically and valued at the compensation cost associated with the performance outcome deemed most probable. The performance units granted in 2019 are hybrid awards having a three-year performance period of January 1, 2019 through December 31, 2021. The payout of the award is dependent on two independent conditions, each constituting 50 percent of the overall target units granted. The awards have a performance condition based on MPLX LP’s distributable cash flow, and a market condition based on MPLX LP’s total unitholder return. The market condition was valued using a Monte Carlo valuation, resulting in a grant date fair value of $0.68 per unit for the 2019 equity-classified performance units. Grant date fair value of the performance condition is based on potential payouts per unit of up to $2.00 per unit. Compensation cost associated with the performance condition is based on the grant date fair value of the payout deemed most probable to occur and is adjusted as the expectation for payout changes. During the first quarter of 2018, a performance award was granted; however, a grant date could not be established based on the nature of the award terms. Given that a grant date cannot be established, no expense or units have been recorded. When a grant date is established, the fair value of the award will be recognized over the remaining performance period. The following is a summary of the activity for performance unit awards to be settled in MPLX LP common units for the nine months ended September 30, 2019 : Number of Outstanding at December 31, 2018 1,941,750 Granted 987,994 Settled (772,397 ) Forfeited — Outstanding at September 30, 2019 2,157,347 |
Leases Leases (Notes)
Leases Leases (Notes) | 9 Months Ended |
Sep. 30, 2019 | |
Disclosure Text Block [Abstract] | |
Lessee, Finance Leases [Text Block] | Lessee We lease a wide variety of facilities and equipment under leases from third parties, including land and building space, office and field equipment, storage facilities and transportation equipment, while our related party leases primarily relate to ground leases associated with our refining logistics assets. Our remaining lease terms range from less than one year to 60 years. Some long-term leases include renewal options ranging from one to 50 years and, in certain leases, also include purchase options. Renewal options and termination options were not included in the measurement of ROU assets and lease liabilities since it was determined they were not reasonably certain to be exercised. Under ASC 842, the components of lease cost were as follows: Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (In millions) Related Party Third Party Related Party Third Party Components of lease cost: Operating lease cost $ 4 $ 19 $ 11 $ 56 Finance lease cost: Amortization of ROU assets — 1 — 4 Interest on lease liabilities — — — 1 Total finance lease cost — 1 — 5 Variable lease cost — 3 — 7 Short-term lease cost — 20 — 56 Total lease cost $ 4 $ 43 $ 11 $ 124 Supplemental balance sheet data related to leases is as follows: September 30, 2019 (In millions) Related Party Third Party Operating leases Assets Right of use assets $ 232 $ 366 Liabilities Operating lease liabilities 1 61 Long-term operating lease liabilities 231 309 Total operating lease liabilities $ 232 $ 370 Weighted average remaining lease term 47.44 years 8.86 years Weighted average discount rate 5.80 % 4.48 % Finance leases Assets Property, plant and equipment, gross $ 49 Accumulated depreciation 21 Property, plant and equipment, net 28 Liabilities Other current liabilities 9 Long-term debt 11 Total finance lease liabilities $ 20 Weighted average remaining lease term 10.00 years Weighted average discount rate 5.81 % As of September 30, 2019 , maturities of lease liabilities for operating lease obligations and finance lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Related Party Operating Third Party Operating Finance 2019 $ 5 $ 21 $ 1 2020 14 74 10 2021 14 68 2 2022 14 59 2 2023 14 55 2 2024 and thereafter 619 173 11 Gross lease payments 680 450 28 Less: imputed interest 448 80 8 Total lease liabilities $ 232 $ 370 $ 20 Future minimum commitments as of December 31, 2018, for capital lease obligations and for operating lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Operating Capital Lease Obligations 2019 $ 90 $ 5 2020 88 8 2021 83 3 2022 76 2 2023 70 2 2024 and thereafter 825 4 Total minimum lease payments $ 1,232 24 Less: imputed interest costs 3 Present value of net minimum lease payments $ 21 |
Lessee, Operating Leases [Text Block] | Lessee We lease a wide variety of facilities and equipment under leases from third parties, including land and building space, office and field equipment, storage facilities and transportation equipment, while our related party leases primarily relate to ground leases associated with our refining logistics assets. Our remaining lease terms range from less than one year to 60 years. Some long-term leases include renewal options ranging from one to 50 years and, in certain leases, also include purchase options. Renewal options and termination options were not included in the measurement of ROU assets and lease liabilities since it was determined they were not reasonably certain to be exercised. Under ASC 842, the components of lease cost were as follows: Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (In millions) Related Party Third Party Related Party Third Party Components of lease cost: Operating lease cost $ 4 $ 19 $ 11 $ 56 Finance lease cost: Amortization of ROU assets — 1 — 4 Interest on lease liabilities — — — 1 Total finance lease cost — 1 — 5 Variable lease cost — 3 — 7 Short-term lease cost — 20 — 56 Total lease cost $ 4 $ 43 $ 11 $ 124 Supplemental balance sheet data related to leases is as follows: September 30, 2019 (In millions) Related Party Third Party Operating leases Assets Right of use assets $ 232 $ 366 Liabilities Operating lease liabilities 1 61 Long-term operating lease liabilities 231 309 Total operating lease liabilities $ 232 $ 370 Weighted average remaining lease term 47.44 years 8.86 years Weighted average discount rate 5.80 % 4.48 % Finance leases Assets Property, plant and equipment, gross $ 49 Accumulated depreciation 21 Property, plant and equipment, net 28 Liabilities Other current liabilities 9 Long-term debt 11 Total finance lease liabilities $ 20 Weighted average remaining lease term 10.00 years Weighted average discount rate 5.81 % As of September 30, 2019 , maturities of lease liabilities for operating lease obligations and finance lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Related Party Operating Third Party Operating Finance 2019 $ 5 $ 21 $ 1 2020 14 74 10 2021 14 68 2 2022 14 59 2 2023 14 55 2 2024 and thereafter 619 173 11 Gross lease payments 680 450 28 Less: imputed interest 448 80 8 Total lease liabilities $ 232 $ 370 $ 20 Future minimum commitments as of December 31, 2018, for capital lease obligations and for operating lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Operating Capital Lease Obligations 2019 $ 90 $ 5 2020 88 8 2021 83 3 2022 76 2 2023 70 2 2024 and thereafter 825 4 Total minimum lease payments $ 1,232 24 Less: imputed interest costs 3 Present value of net minimum lease payments $ 21 |
Lessor, Operating Leases [Text Block] | Lessor Based on the terms of fee-based transportation and storage services agreements with MPC as well as certain natural gas gathering, transportation and processing agreements, MPLX is considered to be the lessor under several operating lease arrangements in accordance with GAAP. The agreements with MPC have remaining terms ranging from less than one year to 12 years with renewal options ranging from zero to 10 years. MPLX’s primary natural gas lease operations relate to a natural gas gathering agreement in the Marcellus Shale for which we earn a fixed fee for providing gathering services to a single producer using a dedicated gathering system. As the gathering system is expanded, the fixed fee charged to the producer is adjusted to include the additional gathering assets in the lease with the fee being recorded on a straight-line basis over the life of the agreement. The primary term of the natural gas gathering arrangement expires in 2038 and will continue thereafter on a year-to-year basis until terminated by either party. Other significant natural gas implicit leases relate to a natural gas processing agreement in the Marcellus Shale and a natural gas processing agreement in the Southern Appalachia region for which MPLX earns minimum monthly fees for providing processing services to a single producer using a dedicated processing plant. The primary term of these natural gas processing agreements expires during 2023 and 2033 with the contracts continuing thereafter on a year-to-year basis until terminated by either party. MPLX did not elect to use the practical expedient to combine lease and non-lease components for lessor arrangements. The tables below represent the portion of the contract allocated to the lease component based on relative standalone selling price. Some lessor agreements are currently deemed operating, as we elected the practical expedient to carry forward historical classification conclusions. If and when a modification of an existing agreement occurs and the agreement is required to be assessed under ASC 842, MPLX assesses the amended agreement and makes a determination as to whether a reclassification of the lease is required. During the three months ended September 30, 2019, there was a modification to MPLX terminal agreements with MPC. Based on the modification, certain terminals within the MPLX terminal agreement were reclassified from operating leases to sales-type leases. As a result, the underlying assets previously shown on the Consolidated Balance Sheets associated with the sales-types lease were derecognized and the net investment in the lease (i.e. the sum of the present value of the future lease payments and the unguaranteed residual value of the assets) was recorded as a lease receivable. When determining the net investment in the lease, certain variable payments were excluded from the total contract consideration, primarily related to fees for which there are no minimum volume commitments. The difference between the net book value of the underlying assets and the net investment in the lease has been recorded through equity given that the dropdown of MPLXT was a common control transaction. During the three months ended September 30, 2019, MPLX derecognized approximately $29 million of property, plant and equipment, derecognized approximately $3 million of existing deferred rent receivable, recorded a lease receivable of approximately $47 million , recorded an unguaranteed residual asset of approximately $6 million and equity of $21 million . Lease revenues included on the Consolidated Statements of Income were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) Related Party Third Party Related Party Third Party Operating leases: Operating lease revenue (1) $ 248 $ 63 $ 773 $ 196 Sales-type leases: Profit/(loss) recognized at the commencement date — N/A — N/A Interest income (Sales-type lease revenue- fixed minimum) 3 N/A 3 N/A Interest income (Revenue from variable lease payments) $ 1 N/A $ 1 N/A (1) These amounts are presented net of executory costs. The following is a schedule of minimum future rental revenue on the non-cancellable operating leases as of September 30, 2019 : (In millions) Related Party Third Party Total 2019 $ 294 $ 47 $ 341 2020 1,179 186 1,365 2021 1,175 178 1,353 2022 1,171 176 1,347 2023 1,118 170 1,288 2024 and thereafter 3,904 1,269 5,173 Total minimum future rentals $ 8,841 $ 2,026 $ 10,867 The following is a schedule of minimum future rental revenue on the non-cancellable operating leases as of December 31, 2018: (In millions) Related Party Third Party Total 2019 $ 1,277 $ 171 $ 1,448 2020 1,275 163 1,438 2021 1,146 154 1,300 2022 1,143 151 1,294 2023 1,094 145 1,239 2024 and thereafter 3,786 1,114 4,900 Total minimum future rentals $ 9,721 $ 1,898 $ 11,619 The following is a schedule of minimum future revenue on the sales-type leases with MPC as of September 30, 2019 : (In millions) Related Party 2019 $ 3 2020 14 2021 14 2022 14 2023 15 2024 and thereafter 34 Total minimum future rentals 94 Less: present value discount 47 Lease receivable $ 47 The following schedule summarizes MPLX’s investment in assets held for operating lease by major classes as of September 30, 2019 and December 31, 2018 : (In millions) September 30, 2019 December 31, 2018 Natural gas gathering and NGL transportation pipelines and facilities $ 1,061 $ 964 Processing, fractionation and storage facilities 1,911 1,670 Pipelines and related assets 364 376 Barges and towing vessels 674 619 Terminals and related assets 1,316 1,415 Refinery related assets 998 981 Land, building, office equipment and other 270 187 Total 6,594 6,212 Less accumulated depreciation 2,271 2,074 Property, plant and equipment, net $ 4,323 $ 4,138 |
Commitments and Contingencies
Commitments and Contingencies | 9 Months Ended |
Sep. 30, 2019 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments and Contingencies Disclosure [Text Block] | Commitments and Contingencies MPLX is the subject of, or a party to, a number of pending or threatened legal actions, contingencies and commitments involving a variety of matters, including laws and regulations relating to the environment. Some of these matters are discussed below. For matters for which MPLX has not recorded an accrued liability, MPLX is unable to estimate a range of possible losses because the issues involved have not been fully developed through pleadings, discovery or court proceedings. However, the ultimate resolution of some of these contingencies could, individually or in the aggregate, be material. Environmental Matters – MPLX is subject to federal, state and local laws and regulations relating to the environment. These laws generally provide for control of pollutants released into the environment and require responsible parties to undertake remediation of hazardous waste disposal sites. Penalties may be imposed for non-compliance. At September 30, 2019 and December 31, 2018 , accrued liabilities for remediation totaled $19 million and $20 million , respectively. However, it is not presently possible to estimate the ultimate amount of all remediation costs that might be incurred or the penalties, if any, which may be imposed. At September 30, 2019 and December 31, 2018 , there were no balances with MPC for indemnification of environmental costs. MPLX is involved in environmental enforcement matters arising in the ordinary course of business. While the outcome and impact on MPLX cannot be predicted with certainty, management believes the resolution of these environmental matters will not, individually or collectively, have a material adverse effect on its consolidated results of operations, financial position or cash flows. Other Lawsuits – MPLX, MarkWest, MarkWest Liberty Midstream, MarkWest Liberty Bluestone, L.L.C., Ohio Fractionation and MarkWest Utica EMG (collectively, the “MPLX Parties”) are parties to various lawsuits with Bilfinger Westcon, Inc. (“Westcon”) that were instituted in 2016 and 2017 in Pennsylvania, West Virginia and Ohio. The lawsuits relate to disputes regarding construction work performed by Westcon at the Bluestone, Mobley and Cadiz processing complexes in Pennsylvania, West Virginia and Ohio, respectively, and the Hopedale fractionation complex in Ohio. With respect to work performed by Westcon at the Mobley and Bluestone processing complexes, one or more of the MPLX Parties have asserted breach of contract, fraud, and with respect to work performed at the Mobley processing complex, MarkWest Liberty Midstream has also asserted negligent misrepresentation claims against Westcon. Westcon has also asserted claims against one or more of the MPLX Parties regarding these construction projects for breach of contract, unjust enrichment, promissory estoppel, fraud and constructive fraud, tortious interference with contractual relations, and civil conspiracy. Collectively, in the several cases, the MPLX Parties sought in excess of $10 million , plus an unspecified amount of punitive damages. Collectively, in the several cases, Westcon sought in excess of $40 million , plus an unspecified amount of punitive damages. On July 31, 2019, Westcon and the MPLX Parties reached an agreement to resolve the disputes among those parties relating to the Bluestone processing complex in Pennsylvania. The settlement resolves a significant portion of the disputes with Westcon. The settlement will not have a material adverse effect on MPLX’s consolidated financial position, results of operations or cash flows. While the ultimate outcome and impact to MPLX cannot be predicted with certainty, MPLX believes the resolution of the remaining litigation with Westcon will not have a material adverse effect on its consolidated financial position, results of operations, or cash flows. In 2003, the State of Illinois brought an action against the Premcor Refining Group, Inc. (“Premcor”) and Apex Refining Company (“Apex”) asserting claims for environmental cleanup related to the refinery owned by these entities in the Hartford/Wood River, Illinois area. In 2006, Premcor and Apex filed third-party complaints against numerous owners and operators of petroleum products facilities in the Hartford/Wood River, Illinois area, including Marathon Pipe Line LLC (“MPL”). These complaints, which have been amended since filing, assert claims of common law nuisance and contribution under the Illinois Contribution Act and other laws for environmental cleanup costs that may be imposed on Premcor and Apex by the State of Illinois. On September 6, 2016, the trial court approved a settlement between Apex and the State of Illinois whereby Apex agreed to settle all claims against it for a $10 million payment. Premcor filed a motion for permissive appeal and requested a stay to the proceeding until the motion is ruled upon. Premcor reached a settlement with the State of Illinois in the second quarter of 2018, which has been objected to by certain third-party defendants, including MPL, and is subject to court approval. Several third-party defendants in the litigation including MPL have asserted cross-claims in contribution against the various third-party defendants. This litigation is currently pending in the Third Judicial Circuit Court, Madison County, Illinois. The trial concerning Premcor’s claims against third-party defendants, including MPL, previously scheduled to commence September 10, 2018, has been postponed and a new trial date has not been set. While the ultimate outcome and impact to MPLX cannot be predicted with certainty, MPLX does not consider it reasonably possible that a loss resulting from such lawsuits or other proceedings in excess of any amounts accrued has been incurred that is expected to have a material adverse effect on its consolidated financial position, results of operations, or cash flows. Under the omnibus agreement, MPC will indemnify MPLX for the full cost of any losses should MPL be deemed responsible for any damages in this lawsuit. MPLX is also a party to a number of other lawsuits and other proceedings arising in the ordinary course of business. While the ultimate outcome and impact to MPLX cannot be predicted with certainty, MPLX believes the resolution of these other lawsuits and proceedings will not have a material adverse effect on its consolidated financial position, results of operations or cash flows. Guarantees – Over the years, MPLX has sold various assets in the normal course of its business. Certain of the related agreements contain performance and general guarantees, including guarantees regarding inaccuracies in representations, warranties, covenants and agreements, and environmental and general indemnifications that require MPLX to perform upon the occurrence of a triggering event or condition. These guarantees and indemnifications are part of the normal course of selling assets. MPLX is typically not able to calculate the maximum potential amount of future payments that could be made under such contractual provisions because of the variability inherent in the guarantees and indemnities. Most often, the nature of the guarantees and indemnities is such that there is no appropriate method for quantifying the exposure because the underlying triggering event has little or no past experience upon which a reasonable prediction of the outcome can be based. In connection with our approximate 9 percent indirect interest in a joint venture that owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects, collectively referred to as the Bakken Pipeline system, we have entered into a Contingent Equity Contribution Agreement whereby MPLX LP, along with the other joint venture owners in the Bakken Pipeline system, have agreed to make equity contributions to the joint venture upon certain events occurring to allow the entities that own and operate the Bakken Pipeline system to satisfy their senior note payment obligations. The senior notes were issued to repay amounts owed by the pipeline companies to fund the cost of construction of Bakken Pipeline system. As of September 30, 2019 , our maximum potential undiscounted payments under the Contingent Equity Contribution Agreement were approximately $230 million . Contractual Commitments and Contingencies – At September 30, 2019 , MPLX’s contractual commitments to acquire property, plant and equipment totaled $788 million . These commitments were primarily related to G&P plant expansion, terminal, pipeline and refining logistics projects. In addition, from time to time and in the ordinary course of business, MPLX and its affiliates provide guarantees of MPLX’s subsidiaries payment and performance obligations in the G&P segment. Certain natural gas processing and gathering arrangements require MPLX to construct new natural gas processing plants, natural gas gathering pipelines and NGL pipelines and contain certain fees and charges if specified construction milestones are not achieved for reasons other than force majeure. In certain cases, certain producers may have the right to cancel the processing arrangements if there are significant delays that are not due to force majeure. As of September 30, 2019 , management does not believe there are any indications that MPLX will not be able to meet the construction milestones, that force majeure does not apply or that such fees and charges will otherwise be triggered. Also, in connection with the Merger, we assumed ANDX obligations related to future purchase obligations included in fuel costs associated with the wholesale product supply agreement, NGLs transportation costs, fractionation fees, and fixed charges with MPC. This increased our future obligations by approximately $11.9 billion |
Description of the Business a_2
Description of the Business and Basis of Presentation Accounting Policies (Policies) | 9 Months Ended |
Sep. 30, 2019 | |
Accounting Policies [Abstract] | |
Business Description and Basis of Presentation [Text Block] | Description of the Business and Basis of Presentation Description of the Business – MPLX LP is a diversified, large-cap master limited partnership formed by Marathon Petroleum Corporation that owns and operates midstream energy infrastructure and logistics assets, and provides fuels distribution services. References in this report to “MPLX LP,” “MPLX,” “the Partnership,” “we,” “ours,” “us,” or like terms refer to MPLX LP and its subsidiaries. References to “MPC” refer collectively to Marathon Petroleum Corporation as our sponsor and its subsidiaries, other than the Partnership. We are engaged in the transportation, storage and distribution of crude oil, asphalt and refined petroleum products; the gathering, processing and transportation of natural gas; and the gathering, transportation, fractionation, storage and marketing of NGLs. MPLX’s principal executive office is located in Findlay, Ohio. MPLX’s business consists of two segments based on the nature of services it offers: Logistics and Storage (“L&S”), which relates primarily to crude oil, asphalt and refined petroleum products; and Gathering and Processing (“G&P”), which relates primarily to natural gas and NGLs. See Note 9 for additional information regarding the operations and results of these segments. On July 30, 2019, MPLX completed its acquisition by merger (the “Merger”) of Andeavor Logistics LP (“ANDX”). At the effective time of the Merger, each common unit held by ANDX’s public unitholders was converted into the right to receive 1.135 MPLX common units. ANDX common units held by certain affiliates of MPC were converted into the right to receive 1.0328 MPLX common units. See Note 3 for additional information regarding the Merger. Basis of Presentation – The accompanying interim consolidated financial statements are unaudited; however, in the opinion of MPLX’s management, these statements reflect all adjustments necessary for a fair statement of the results for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These interim consolidated financial statements, including the notes, have been prepared in accordance with the rules and regulations of the SEC applicable to interim period financial statements and do not include all of the information and disclosures required by GAAP for complete financial statements. Certain amounts in prior years have been reclassified to conform to current year presentation. These interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Annual Report on Form 10-K for the year ended December 31, 2018 . The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for the full year. In relation to the Merger described above and in Note 3 , ANDX’s assets, liabilities and results of operations prior to the Merger are collectively included in what we refer to as the “Predecessor” from October 1, 2018, which was the date that MPC acquired Andeavor. MPLX’s acquisition of ANDX is considered a transfer between entities under common control due to MPC’s relationship with ANDX prior to the Merger. As an entity under common control with MPC, MPLX recorded the assets acquired and liabilities assumed on its consolidated balance sheets at MPC’s historical carrying value. Transfers of businesses between entities under common control require prior periods to be retrospectively adjusted for those dates that the entity was under common control. Accordingly, the accompanying financial statements and related notes of MPLX LP have been retrospectively adjusted to include the historical results of ANDX beginning October 1, 2018. MPLX’s consolidated financial statements include all majority-owned and controlled subsidiaries. For non wholly-owned consolidated subsidiaries, the interests owned by third parties have been recorded as “Noncontrolling interests” on the accompanying Consolidated Balance Sheets. Intercompany investments, accounts and transactions have been eliminated. MPLX’s investments in which MPLX exercises significant influence but does not control and does not have a controlling financial interest are accounted for using the equity method. MPLX’s investments in a VIE in which MPLX exercises significant influence but does not control and is not the primary beneficiary are also accounted for using the equity method. In preparing the Consolidated Statements of Equity, net income attributable to MPLX LP is allocated to Series A and Series B preferred unitholders based on a fixed distribution schedule. Distributions, although earned, are not accrued until declared. The allocation of net income attributable to MPLX LP for purposes of calculating net income per limited partner unit is described in Note 6 . |
Use of Estimates, Policy [Policy Text Block] | The accompanying interim consolidated financial statements are unaudited; however, in the opinion of MPLX’s management, these statements reflect all adjustments necessary for a fair statement of the results for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These interim consolidated financial statements, including the notes, have been prepared in accordance with the rules and regulations of the SEC applicable to interim period financial statements and do not include all of the information and disclosures required by GAAP for complete financial statements. Certain amounts in prior years have been reclassified to conform to current year presentation. |
Earnings Per Share, Policy [Policy Text Block] | In preparing the Consolidated Statements of Equity, net income attributable to MPLX LP is allocated to Series A and Series B preferred unitholders based on a fixed distribution schedule. Distributions, although earned, are not accrued until declared. The allocation of net income attributable to MPLX LP for purposes of calculating net income per limited partner unit is described in Note 6 . Net income/(loss) per unit applicable to common units is computed by dividing net income/(loss) attributable to MPLX LP less income/(loss) allocated to participating securities by the weighted average number of common units outstanding. Additional MPLX common units and MPLX Series B preferred units were issued on July 30, 2019 as a result of the merger with ANDX as discussed in Note 3. Distributions declared on these newly issued common and Series B preferred units are a reduction to income available to MPLX common unit holders due to their participation in distributions of income. The classes of participating securities include common units, certain equity-based compensation awards, Series A preferred units and Series B preferred units for the three and nine months ended September 30, 2019 and common units, certain equity-based compensation awards and Series A preferred units for the three and nine months ended September 30, 2018. |
Net Income Per Limited Partne_2
Net Income Per Limited Partner Unit Accounting Policy (Policies) | 9 Months Ended |
Sep. 30, 2019 | |
Accounting Policies [Abstract] | |
Earnings Per Share, Policy [Policy Text Block] | In preparing the Consolidated Statements of Equity, net income attributable to MPLX LP is allocated to Series A and Series B preferred unitholders based on a fixed distribution schedule. Distributions, although earned, are not accrued until declared. The allocation of net income attributable to MPLX LP for purposes of calculating net income per limited partner unit is described in Note 6 . Net income/(loss) per unit applicable to common units is computed by dividing net income/(loss) attributable to MPLX LP less income/(loss) allocated to participating securities by the weighted average number of common units outstanding. Additional MPLX common units and MPLX Series B preferred units were issued on July 30, 2019 as a result of the merger with ANDX as discussed in Note 3. Distributions declared on these newly issued common and Series B preferred units are a reduction to income available to MPLX common unit holders due to their participation in distributions of income. The classes of participating securities include common units, certain equity-based compensation awards, Series A preferred units and Series B preferred units for the three and nine months ended September 30, 2019 and common units, certain equity-based compensation awards and Series A preferred units for the three and nine months ended September 30, 2018. |
Acquisitions Acquisitions (Tabl
Acquisitions Acquisitions (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Business Combinations [Abstract] | |
Business Acquisition, Pro Forma Information [Table Text Block] | The following unaudited pro forma information combines the historical operations of MPLX and ANDX, giving effect to the Merger as if it had been consummated on January 1, 2018, the beginning of the earliest period presented. Three Months Ended Nine Months Ended (In millions) 2019 2018 2019 2018 Total revenues and other income $ 2,280 $ 2,312 $ 6,725 $ 6,371 Net income attributable to MPLX LP $ 681 $ 679 $ 2,015 $ 1,840 |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] | MPC accounted for its October 1, 2018 acquisition of Andeavor (including acquiring control of ANDX), using the acquisition method of accounting, which required Andeavor assets and liabilities to be recorded by MPC at the acquisition date fair value. The Merger was closed on July 30, 2019, and the results of ANDX have been incorporated into the results of MPLX as of October 1, 2018, which is the date that common control was established. As a result of MPC’s relationship with both MPLX and ANDX, the Merger has been treated as a common control transaction, which requires the recasting of MPLX’s historical results and the recognition of assets acquired and liabilities assumed using MPC’s historical carrying value. The fair value of assets acquired and liabilities assumed shown below represents MPC’s historical carrying values as of October 1, 2018. (In millions) As Originally Reported Adjustments (1) As Adjusted Cash and cash equivalents $ 83 $ (53 ) $ 30 Receivables, net 241 256 497 Inventories 21 — 21 Other current assets (2) 59 (7 ) 52 Equity method investments 731 (89 ) 642 Property, plant and equipment, net 6,709 (427 ) 6,282 Intangibles, net 960 74 1,034 Other noncurrent assets (3) 31 (8 ) 23 Total assets acquired 8,835 (254 ) 8,581 Accounts payable 198 265 463 Other current liabilities (4) 188 (41 ) 147 Long-term debt 4,916 — 4,916 Deferred credits and other long-term liabilities (5) 75 1 76 Total liabilities assumed 5,377 225 5,602 Net assets acquired excluding goodwill 3,458 (479 ) 2,979 Goodwill 7,428 727 8,155 Net assets acquired $ 10,886 $ 248 $ 11,134 (1) Inclusive of activity recorded subsequent to the acquisition of ANDX on July 30, 2019, a portion of which was recorded as a non-cash contribution from MPC. (2) Includes both related party and third party other current assets. (3) Includes both related party and third party other noncurrent assets. (4) Includes accrued liabilities, operating lease liabilities and long-term debt due within one year, as well as related party and third party other current liabilities. (5) Includes deferred revenue and deferred income taxes, as well as related party and third party other noncurrent liabilities. |
Equity Method Investments (Tabl
Equity Method Investments (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Schedule of Equity Method Investments [Line Items] | |
Equity Method Investments [Table Text Block] | The following table presents MPLX’s equity method investments at the dates indicated: Ownership as of Carrying value at September 30, September 30, December 31, (In millions, except ownership percentages) 2019 2019 2018 L&S MarEn Bakken Company LLC 25% $ 483 $ 498 Illinois Extension Pipeline Company, L.L.C. 35% 275 275 LOOP LLC 41% 239 226 Andeavor Logistics Rio Pipeline LLC (1) 67% 201 181 Minnesota Pipe Line Company, LLC (1) 17% 192 197 Explorer Pipeline Company 25% 83 90 Other (1) 199 51 Total L&S 1,672 1,518 G&P MarkWest Utica EMG, L.L.C. 56% 2,017 2,039 Sherwood Midstream LLC 50% 502 366 MarkWest EMG Jefferson Dry Gas Gathering Company, L.L.C. 67% 291 236 Rendezvous Gas Services, L.L.C. (1) 78% 174 248 Sherwood Midstream Holdings LLC 54% 159 157 Centrahoma Processing LLC 40% 155 160 Other (1) 212 177 Total G&P 3,510 3,383 Total $ 5,182 $ 4,901 (1) These investments as well as certain investments included within “Other” for both L&S and G&P are investments acquired as part of the Merger. The September 30, 2019 balance reflects all purchase accounting adjustments identified by MPC as part of its acquisition of Andeavor. |
Summarized Financial Information For Equity Method Investees Table [Table Text Block] | Summarized financial information for MPLX’s equity method investments for the nine months ended September 30, 2019 and 2018 is as follows: Nine Months Ended September 30, 2019 (1) (In millions) VIEs Non-VIEs Total Revenues and other income $ 479 $ 1,116 $ 1,595 Costs and expenses 251 434 685 Income from operations 228 682 910 Net income 192 605 797 Income from equity method investments (2) $ 89 $ 166 $ 255 Nine Months Ended September 30, 2018 (1) (In millions) VIEs Non-VIEs Total Revenues and other income $ 340 $ 967 $ 1,307 Costs and expenses 202 495 697 Income from operations 138 472 610 Net income 135 417 552 Income from equity method investments (2) $ 44 $ 131 $ 175 (1) The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. (2) Includes the impact of any basis differential amortization or accretion. Summarized balance sheet information for MPLX’s equity method investments as of September 30, 2019 and December 31, 2018 is as follows: September 30, 2019 (1) (In millions) VIEs Non-VIEs Total Current assets $ 378 $ 388 $ 766 Noncurrent assets 5,469 5,164 10,633 Current liabilities 328 254 582 Noncurrent liabilities $ 265 $ 843 $ 1,108 December 31, 2018 (1) (In millions) VIEs Non-VIEs Total Current assets $ 252 $ 415 $ 667 Noncurrent assets 3,796 5,290 9,086 Current liabilities 158 280 438 Noncurrent liabilities $ 191 $ 845 $ 1,036 (1) The financial information for equity method investments at September 30, 2019 and December 31, 2018 is inclusive of financial information of equity method investments acquired as part of the Merger. See Note 3 for additional details. |
Related Party Agreements and _2
Related Party Agreements and Transactions (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Related Party Transactions [Abstract] | |
Other Long-term Debt, Noncurrent | Activity on the MPC Loan Agreement was as follows: (In millions) Nine Months Ended September 30, 2019 Year Ended December 31, 2018 Borrowings $ 6,935 $ 3,962 Average interest rate of borrowings 3.640 % 3.473 % Repayments $ 6,810 $ 4,347 Outstanding balance at end of period (1) $ 125 $ — (1) Included in “Current liabilities - related parties” on the Consolidated Balance Sheets. Prior to the Merger, ANDX was also party to a loan agreement with MPC (“ANDX-MPC Loan Agreement”). This facility was entered into on December 21, 2018, with a borrowing capacity of $500 million . In connection with the Merger, on July 31, 2019, MPLX repaid the entire outstanding balance and terminated the ANDX-MPC Loan Agreement. Activity on the ANDX-MPC Loan Agreement prior to the Merger was as follows: (In millions) Nine Months Ended September 30, 2019 Borrowings $ 773 Average interest rate of borrowings 4.249 % Repayments $ 773 Outstanding balance at end of period $ — |
Schedule of Sales to Related Parties | Revenue received from related parties included on the Consolidated Statements of Income was as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Service revenues - related parties MPC $ 899 $ 568 $ 2,549 $ 1,588 Rental income - related parties MPC 293 190 904 525 Product sales - related parties (1) MPC 32 18 109 35 Other income - related parties MPC 14 11 34 31 Other 17 15 50 42 Total Other income - related parties $ 31 $ 26 $ 84 $ 73 (1) There were additional product sales to MPC that net to zero within the consolidated financial statements as the transactions are recorded net due to the terms of the agreements under which such product was sold. For the three and nine months ended September 30, 2019 , these sales totaled $301 million and $819 million , respectively. For the three and nine months ended September 30, 2018 , these sales totaled $137 million and $328 million , respectively. |
Schedule of Employee Services Expenses from Related Parties | Expenses incurred from MPC under the omnibus and employee services agreements as well as other purchases from MPC included on the Consolidated Statements of Income are as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Rental cost of sales - related parties $ 45 $ 1 $ 124 $ 2 Purchases - related parties MPC 297 228 878 628 Other 6 — 16 — General and administrative expenses 59 48 174 131 Total $ 407 $ 277 $ 1,192 $ 761 |
Schedule of Related Party Transactions [Table Text Block] | Assets and liabilities with related parties appearing on the Consolidated Balance Sheets are detailed in the table below. This table identifies the various components of related party assets and liabilities, including those associated with leases (see Note 19 for additional information) and deferred revenue on minimum volume commitments. During the nine months ended September 30, 2019 and the year ended December 31, 2018 , MPC did not meet its minimum committed volumes based on the agreements identified above. If MPC fails to meet its minimum committed volumes, MPC will pay MPLX a deficiency payment based on the terms of the agreement. The deficiency amounts are recorded as “Current liabilities - related parties.” In many cases, MPC may then apply the amount of any such deficiency payments as a credit for volumes in excess of its minimum volume commitment in future periods under the terms of the applicable agreements. MPLX recognizes related party revenues for the deficiency payments when credits are used for volumes in excess of minimum quarterly volume commitments, where it is probable the customer will not use the credit in future periods or upon the expiration of the credits. The use or expiration of the credits is a decrease in “Current liabilities - related parties.” In addition, capital projects MPLX is undertaking at the request of MPC are reimbursed in cash and recognized in income over the remaining term of the applicable agreements or in some cases as an equity contribution from its sponsor. (In millions) September 30, 2019 December 31, 2018 Current assets - related parties Receivables - MPC $ 623 $ 542 Receivables - Other 22 9 Prepaid - MPC 6 5 Other - MPC 6 — Lease Receivables - MPC 3 — Total 660 556 Noncurrent assets - related parties Long-term receivables - MPC 20 24 Right of use assets - MPC 232 — Long-term lease receivables - MPC 44 — Unguaranteed residual asset - MPC 6 — Total 302 24 Current liabilities - related parties Payables - MPC 477 360 Payables - Other 34 76 Operating lease liabilities - MPC 1 — Deferred revenue - Minimum volume deficiencies - MPC 40 57 Deferred revenue - Project reimbursements - MPC 9 9 Deferred revenue - Other 1 — Total 562 502 Long-term liabilities - related parties Long-term operating lease liabilities - MPC 231 — Long-term deferred revenue - Project reimbursements - MPC 53 46 Long-term deferred revenue - Other 9 — Total $ 293 $ 46 |
Net Income Per Limited Partne_3
Net Income Per Limited Partner Unit (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Earnings Per Share [Abstract] | |
Schedule of Distributions By Partner By Class | For the three and nine months ended September 30, 2019 and 2018 , MPLX had dilutive potential common units consisting of certain equity-based compensation awards. Potential common units omitted from the diluted earnings per unit calculation for the three and nine months ended September 30, 2019 and 2018 were less than 1 million . Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Net income attributable to MPLX LP $ 629 $ 510 $ 1,614 $ 1,384 Less: Distributions declared on Series A preferred units (1) 20 19 61 55 Distributions declared on Series B preferred units (1) 10 — 31 — Limited partners’ distributions declared on MPLX common units (including common units of general partner) (1)(2) 704 507 1,919 1,471 Undistributed net loss attributable to MPLX LP $ (105 ) $ (16 ) $ (397 ) $ (142 ) (1) See Note 7 for distribution information. (2) The three and nine months ended September 30, 2019 amounts are net of $12.5 million and $25 million of quarterly waived distributions with respect to units held by MPC and its affiliates. |
Schedule of Basic and Diluted Earnings Per Unit | Three Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 704 $ 20 $ 10 $ 734 Undistributed net loss attributable to MPLX LP (105 ) — — (105 ) Net income attributable to MPLX LP (1) $ 599 $ 20 $ 10 $ 629 Weighted average units outstanding: Basic (2) 974 31 — 1,005 Diluted (2) 975 31 — 1,006 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.61 Diluted $ 0.61 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. (2) The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire three months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. Three Months Ended September 30, 2018 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 507 $ 19 $ 526 Undistributed net loss attributable to MPLX LP (16 ) — (16 ) Net income attributable to MPLX LP (1) $ 491 $ 19 $ 510 Weighted average units outstanding: Basic 794 31 825 Diluted 794 31 825 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.62 Diluted $ 0.62 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. Nine Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit: Net income attributable to MPLX LP: Distributions declared $ 1,919 $ 61 $ 31 $ 2,011 Undistributed net loss attributable to MPLX LP (397 ) — — (397 ) Net income attributable to MPLX LP (1) $ 1,522 $ 61 $ 31 $ 1,614 Weighted average units outstanding: Basic (2) 855 31 — 886 Diluted (2) 855 31 — 886 Net income attributable to MPLX LP per limited partner unit: Basic $ 1.78 Diluted $ 1.78 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. (2) The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire nine months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. Nine Months Ended September 30, 2018 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit: Net income attributable to MPLX LP: Distributions declared $ 1,471 $ 55 $ 1,526 Undistributed net loss attributable to MPLX LP (142 ) — (142 ) Net income attributable to MPLX LP (1) $ 1,329 $ 55 $ 1,384 Weighted average units outstanding: Basic 750 31 781 Diluted 750 31 781 Net income attributable to MPLX LP per limited partner unit: Basic $ 1.77 Diluted $ 1.77 (1) Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. |
Equity (Tables)
Equity (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Equity [Abstract] | |
Schedule of Stockholders Equity [Table Text Block] | The changes in the number of common units outstanding during the nine months ended September 30, 2019 are summarized below: (In units) Common Balance at December 31, 2018 794,089,518 Unit-based compensation awards 287,019 Issuance of units in connection with the Merger 262,829,592 Conversion of Series A preferred units 1,148,330 Balance at September 30, 2019 1,058,354,459 In connection with the Merger and as discussed in Note 3, each common unit held by ANDX’s public unitholders was converted into the right to receive 1.135 MPLX common units while ANDX common units held by certain affiliates of MPC were converted into the right to receive 1.0328 MPLX common units. This resulted in the issuance of MPLX common units of approximately 102 million units to public unitholders and approximately 161 million units to MPC in connection with MPLX's acquisition of ANDX on July 30, 2019. Also during the quarter, certain holders of Series A preferred units exercised their rights to convert their Series A preferred units into common units as discussed in Note 8. Series B Preferred Units Prior to the Merger, ANDX issued 600,000 units of 6.875 percent Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units representing limited partner interests of ANDX at a price to the public of $1,000 per unit. Upon completion of the Merger the ANDX preferred units converted to preferred units of MPLX representing substantially equivalent limited partnership interests in MPLX (the “Series B preferred units”). The Series B preferred units are pari passu with the Series A preferred units with respect to distribution rights and rights upon liquidation. Distributions on the Series B preferred units are payable semi-annually in arrears on the 15th day, or the first business day thereafter, of February and August of each year through and including February 15, 2023. After February 15, 2023, the distribution will be made quarterly in arrears on the 15th day, or the first business day thereafter, of February, May, August and November of each year to holders of record as of the record date, which is generally the close of business on the first business day of the month of the applicable payment date. The changes in the Series B preferred unit balance from the Merger through September 30, 2019 are summarized below and are included in the Consolidated Balance Sheets and Consolidated Statements of Equity within “Equity of Predecessor” for the period prior to the Merger and within “Series B preferred units” for the period following the Merger. The Series B preferred units are recorded at fair value as of July 30, 2019. (In millions) Series B Preferred Units Beginning Balance at the Merger date $ 615 Net income allocated 7 Distributions received by Series B preferred unitholders (21 ) Balance at September 30, 2019 $ 601 |
Distributions Made to Limited Partner, by Distribution [Table Text Block] | The allocation of total quarterly cash distributions to limited and preferred unitholders is as follows for the three and nine months ended September 30, 2019 and 2018 . MPLX’s distributions are declared subsequent to quarter end; therefore, the following table represents total cash distributions applicable to the period in which the distributions were earned. Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Common and preferred unit distributions: Common unitholders, includes common units of general partner $ 704 $ 507 $ 1,919 $ 1,471 Series A preferred unit distributions 20 19 61 55 Series B preferred unit distributions 10 — 31 — Total cash distributions declared $ 734 $ 526 $ 2,011 $ 1,526 The distribution on common units for the three and nine months ended September 30, 2019 includes the impact of the issuance of approximately 102 million units issued to public unitholders and approximately 161 million units issued to MPC in connection with the Merger. Due to the timing of the closing, distributions presented in the table above for the second quarter include distributions on MPLX common units issued to former ANDX unitholders in connection with the Merger. Due to the waiver mentioned above, the distributions on common units exclude $12.5 million of waived distributions for the three months ended September 30, 2019 and $25 million of waived distributions for the nine months ended September 30, 2019. Also included in the table above is $10 million of distributions earned by the Series B preferred units for the three months ended September 30, 2019 as well as $21 million |
Series A Preferred Units (Table
Series A Preferred Units (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Temporary Equity Disclosure [Abstract] | |
Rollforward of Redeemable Preferred Units | The changes in the redeemable preferred balance from December 31, 2018 through September 30, 2019 are summarized below: (In millions) Redeemable Series A Preferred Units Balance at December 31, 2018 $ 1,004 Net income allocated 61 Distributions received by Series A preferred unitholders (61 ) Conversion of Series A preferred units to common units (36 ) Balance at September 30, 2019 $ 968 |
Segment Information (Tables)
Segment Information (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Segment Reporting [Abstract] | |
Schedule of Segment Reporting Information, by Segment [Table Text Block] | The tables below present information about revenues and other income, capital expenditures and total assets for our reportable segments: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 L&S Service revenue $ 976 $ 602 $ 2,787 $ 1,682 Rental income 304 191 935 526 Product related revenue 22 5 57 10 Income from equity method investments 60 43 159 123 Other income 17 12 45 36 Total segment revenues and other income (1) 1,379 853 3,983 2,377 Segment Adjusted EBITDA (2) 766 547 1,895 1,510 Maintenance capital expenditures 57 31 128 78 Growth capital expenditures 216 78 618 325 G&P Service revenue 555 422 1,627 1,154 Rental income 88 88 260 251 Product related revenue 207 311 714 831 Income from equity method investments 35 21 96 52 Other income 16 17 45 45 Total segment revenues and other income (1) 901 859 2,742 2,333 Segment Adjusted EBITDA (2) 399 390 1,120 1,054 Maintenance capital expenditures 18 9 46 20 Growth capital expenditures $ 302 $ 380 $ 861 $ 1,057 (1) Within the total segment revenues and other income amounts presented above, third party revenues for the L&S segment were $182 million and $498 million for the three and nine months ended September 30, 2019 , respectively, and $82 million and $227 million for the three and nine months ended September 30, 2018 , respectively. Third party revenues for the G&P segment were $843 million and $2,581 million for the three and nine months ended September 30, 2019 , respectively, and $828 million and $2,262 million for the three and nine months ended September 30, 2018 , respectively. (2) See below for the reconciliation from Segment Adjusted EBITDA to net income. |
Reconciliation of Assets from Segment to Consolidated [Table Text Block] | (In millions) September 30, 2019 December 31, 2018 Segment assets Cash and cash equivalents $ 41 $ 77 L&S 20,579 19,963 G&P 20,661 19,285 Total assets $ 41,281 $ 39,325 |
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block] | The table below provides a reconciliation between net income and Segment Adjusted EBITDA. Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Reconciliation to Net income: L&S Segment Adjusted EBITDA $ 766 $ 547 $ 1,895 $ 1,510 G&P Segment Adjusted EBITDA 399 390 1,120 1,054 Total reportable segments 1,165 937 3,015 2,564 Depreciation and amortization (1) (302 ) (201 ) (916 ) (565 ) Provision for income taxes (4 ) (3 ) (2 ) (8 ) Amortization of deferred financing costs (10 ) (14 ) (29 ) (45 ) Non-cash equity-based compensation (5 ) (6 ) (17 ) (15 ) Net interest and other financial costs (223 ) (139 ) (657 ) (389 ) Income from equity method investments 95 64 255 175 Distributions/adjustments related to equity method investments (145 ) (112 ) (399 ) (314 ) Unrealized derivative gains/(losses) (2) 11 (17 ) 7 (18 ) Acquisition costs (9 ) — (14 ) (3 ) Other (1 ) — (1 ) — Adjusted EBITDA attributable to noncontrolling interests 9 7 23 13 Adjusted EBITDA attributable to Predecessor (3) 108 — 770 — Net income $ 689 $ 516 $ 2,035 $ 1,395 (1) Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 , respectively. (2) MPLX makes a distinction between realized and unrealized gains and losses on derivatives. During the period when a derivative contract is outstanding, changes in the fair value of the derivative are recorded as an unrealized gain or loss. When a derivative contract matures or is settled, the previously recorded unrealized gain or loss is reversed and the realized gain or loss of the contract is recorded. (3) The adjusted EBITDA adjustments related to Predecessor are excluded from adjusted EBITDA attributable to MPLX LP prior to the Merger. |
Inventories (Tables)
Inventories (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Inventory Disclosure [Abstract] | |
Summary of Inventories | Inventories consist of the following: (In millions) September 30, 2019 December 31, 2018 NGLs $ 4 $ 9 Line fill 8 9 Spare parts, materials and supplies 92 80 Total inventories $ 104 $ 98 |
Property, Plant and Equipment (
Property, Plant and Equipment (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Property, Plant and Equipment [Abstract] | |
Summary of Property, Plant and Equipment | Property, plant and equipment with associated accumulated depreciation is shown below: (In millions) September 30, 2019 December 31, 2018 Natural gas gathering and NGL transportation pipelines and facilities $ 6,909 $ 6,349 Processing, fractionation and storage facilities 6,113 6,045 Pipelines and related assets 5,058 5,111 Barges and towing vessels 675 621 Terminals and related assets 2,422 2,757 Refinery related assets 1,398 1,447 Land, building, office equipment and other 2,324 1,562 Construction-in-progress 1,429 1,321 Total 26,328 25,213 Less accumulated depreciation 4,436 3,688 Property, plant and equipment, net $ 21,892 $ 21,525 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Fair Value Disclosures [Abstract] | |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] | The following table presents the financial instruments carried at fair value on a recurring basis as of September 30, 2019 and December 31, 2018 by fair value hierarchy level. MPLX has elected to offset the fair value amounts recognized for multiple derivative contracts executed with the same counterparty. September 30, 2019 December 31, 2018 (In millions) Assets Liabilities Assets Liabilities Significant unobservable inputs (Level 3) Embedded derivatives in commodity contracts $ — $ (54 ) $ — $ (61 ) Total carrying value on Consolidated Balance Sheets $ — $ (54 ) $ — $ (61 ) |
Fair Value Inputs Assets and Liabilities Quantitative Information [Table Text Block] | Level 3 instruments include all NGL transactions and embedded derivatives in commodity contracts. The embedded derivative liability relates to a natural gas purchase commitment embedded in a keep-whole processing agreement. The fair value calculation for these Level 3 instruments used significant unobservable inputs including: (1) NGL prices interpolated and extrapolated due to inactive markets ranging from $0.41 to $1.07 and (2) the probability of renewal of 93 percent for the first five-year term and 82.5 percent for the second five-year term of the gas purchase commitment and related keep-whole processing agreement. Increases or decreases in the fractionation spread result in an increase or decrease in the fair value of the embedded derivative liability, respectively. An increase in the probability of renewal would result in an increase in the fair value of the related embedded derivative liability. Beyond the embedded derivative discussed above, we had no outstanding commodity contracts as of September 30, 2019 or December 31, 2018 . |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] | The following table is a reconciliation of the net beginning and ending balances recorded for net assets and liabilities classified as Level 3 in the fair value hierarchy. Three Months Ended September 30, 2019 Three Months Ended September 30, 2018 (In millions) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Fair value at beginning of period $ — $ (65 ) $ (2 ) $ (66 ) Total gains/(losses) (realized and unrealized) included in earnings (1) — 9 (1 ) (19 ) Settlements — 2 1 3 Fair value at end of period — (54 ) (2 ) (82 ) The amount of total gains/(losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to liabilities still held at end of period $ — $ 9 $ (2 ) $ (19 ) (1) Gains and losses on commodity derivative contracts classified as Level 3 are recorded in “Product sales” on the Consolidated Statements of Income. Gains and losses on derivatives embedded in commodity contracts are recorded in “Purchased product costs” and “Cost of revenues” on the Consolidated Statements of Income. Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 (In millions) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Commodity Derivative Contracts (net) Embedded Derivatives in Commodity Contracts (net) Fair value at beginning of period $ — $ (61 ) $ (2 ) $ (64 ) Total gains/(losses) (realized and unrealized) included in earnings (1) — 2 (2 ) (27 ) Settlements — 5 2 9 Fair value at end of period — (54 ) (2 ) (82 ) The amount of total gains/(losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to liabilities still held at end of period $ — $ 5 $ (1 ) $ (21 ) (1) Gains and losses on commodity derivative contracts classified as Level 3 are recorded in “Product sales” |
Fair Value Carrying Value by Balance Sheet Grouping [Table Text Block] | The following table summarizes the fair value and carrying value of the long-term debt, excluding finance leases, and SMR liability: September 30, 2019 December 31, 2018 (In millions) Fair Value Carrying Value Fair Value Carrying Value Long-term debt $ 21,290 $ 19,789 $ 18,070 $ 18,511 SMR liability $ 93 $ 82 $ 92 $ 86 |
Derivative Financial Instrume_2
Derivative Financial Instruments (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Derivative Instruments and Hedging Activities Disclosure [Abstract] | |
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] | As of September 30, 2019 , MPLX had no outstanding commodity contracts beyond the embedded derivative discussed below. |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | The impact of MPLX’s derivative instruments on its Consolidated Balance Sheets is summarized below: (In millions) September 30, 2019 December 31, 2018 Derivative contracts not designated as hedging instruments and their balance sheet location Asset Liability Asset Liability Commodity contracts (1) Other current assets / Other current liabilities $ — $ (5 ) $ — $ (7 ) Other noncurrent assets / Deferred credits and other liabilities — (49 ) — (54 ) Total $ — $ (54 ) $ — $ (61 ) (1) Includes embedded derivatives in commodity contracts as discussed above. |
Derivative Instruments, Gain (Loss) [Table Text Block] | The impact of MPLX’s derivative contracts not designated as hedging instruments and the location of gains and losses recognized on the Consolidated Statements of Income is summarized below: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2019 2018 2019 2018 Product sales Realized (loss)/gain $ — $ (1 ) $ — $ (2 ) Unrealized (loss)/gain — (1 ) — — Product sales derivative (loss)/gain — (2 ) — (2 ) Purchased product costs Realized (loss)/gain (2 ) (4 ) (5 ) (10 ) Unrealized gain/(loss) 11 (16 ) 7 (18 ) Purchased product costs derivative (loss)/gain 9 (20 ) 2 (28 ) Cost of revenues Realized (loss)/gain — — — — Unrealized (loss)/gain — — — — Cost of revenues derivative (loss)/gain — — — — Total derivative gain/(loss) $ 9 $ (22 ) $ 2 $ (30 ) |
Debt (Tables)
Debt (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Debt Disclosure [Abstract] | |
Summary of Outstanding Borrowings | MPLX’s outstanding borrowings consist of the following: (In millions) September 30, 2019 December 31, 2018 MPLX LP: Bank revolving credit facility due 2024 $ — $ — Term loan facility due 2021 500 — Floating rate senior notes due September 2021 1,000 — Floating rate senior notes due September 2022 1,000 — 6.250% senior notes due October 2022 266 — 3.500% senior notes due December 2022 486 — 3.375% senior notes due March 2023 500 500 4.500% senior notes due July 2023 989 989 6.375% senior notes due May 2024 381 — 4.875% senior notes due December 2024 1,149 1,149 5.250% senior notes due January 2025 708 — 4.000% senior notes due February 2025 500 500 4.875% senior notes due June 2025 1,189 1,189 4.125% senior notes due March 2027 1,250 1,250 4.250% senior notes due December 2027 732 — 4.000% senior notes due March 2028 1,250 1,250 4.800% senior notes due February 2029 750 750 4.500% senior notes due April 2038 1,750 1,750 5.200% senior notes due March 2047 1,000 1,000 5.200% senior notes due December 2047 487 — 4.700% senior notes due April 2048 1,500 1,500 5.500% senior notes due February 2049 1,500 1,500 4.900% senior notes due April 2058 500 500 Consolidated subsidiaries: MarkWest - 4.500% - 4.875% senior notes, due 2023-2025 23 23 ANDX - 3.500% - 6.375% senior notes, due 2019-2047 690 3,750 ANDX credit facilities — 1,245 Financing lease obligations (1) 20 21 Total 20,120 18,866 Unamortized debt issuance costs (109 ) (97 ) Unamortized discount/premium (311 ) (334 ) Amounts due within one year (510 ) (513 ) Total long-term debt due after one year $ 19,190 $ 17,922 (1) See Note 19 for lease information. |
Revenue (Tables)
Revenue (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Revenue from Contract with Customer [Abstract] | |
Disaggregation of Revenue [Table Text Block] | The following tables represent a disaggregation of revenue for each reportable segment for the three and nine months ended September 30, 2019 and 2018 : Three Months Ended September 30, 2019 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 95 $ 537 $ 632 Service revenue - related parties 881 18 899 Service revenue - product related — 26 26 Product sales (1) 14 157 171 Product sales - related parties 8 24 32 Total revenues from contracts with customers $ 998 $ 762 1,760 Non-ASC 606 revenue (2) 520 Total revenues and other income $ 2,280 Three Months Ended September 30, 2018 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 34 $ 422 $ 456 Service revenue - related parties 568 — 568 Service revenue - product related — 59 59 Product sales (1) 3 237 240 Product sales - related parties 2 16 18 Total revenues from contracts with customers $ 607 $ 734 1,341 Non-ASC 606 revenue (2) 371 Total revenues and other income $ 1,712 Nine Months Ended September 30, 2019 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 260 $ 1,605 $ 1,865 Service revenue - related parties 2,527 22 2,549 Service revenue - product related — 86 86 Product sales (1) 40 536 576 Product sales - related parties 17 92 109 Total revenues from contracts with customers $ 2,844 $ 2,341 5,185 Non-ASC 606 revenue (2) 1,540 Total revenues and other income $ 6,725 Nine Months Ended September 30, 2018 (In millions) L&S G&P Total Revenues and other income: Service revenue $ 94 $ 1,154 $ 1,248 Service revenue - related parties 1,588 — 1,588 Service revenue - product related — 154 154 Product sales (1) 5 649 654 Product sales - related parties 5 30 35 Total revenues from contracts with customers $ 1,692 $ 1,987 3,679 Non-ASC 606 revenue (2) 1,031 Total revenues and other income $ 4,710 (1) G&P “Product sales” for the three and nine months ended September 30, 2018 includes approximately $1 million and $2 million of revenue related to derivative gains and losses and mark-to-market adjustments, respectively. There were no adjustments for the three and nine months ended September 30, 2019 . (2) Non-ASC 606 Revenue includes rental income, income from equity method investments, derivative gains and losses, mark-to-market adjustments, and other income. |
Contract with Customer, Asset and Liability [Table Text Block] | The table below reflects the changes in our contract balances for the nine-month period ended September 30, 2019 : (In millions) Balance at December 31, 2018 (1) Additions/ (Deletions) Revenue Recognized (2) Balance at September 30, 2019 Contract assets $ 36 $ (6 ) $ (2 ) $ 28 Deferred revenue 13 11 (4 ) 20 Deferred revenue - related parties 65 34 (50 ) 49 Long-term deferred revenue 56 26 — 82 Long-term deferred revenue - related parties $ 52 $ 5 $ — $ 57 (1) Balance represents ASC 606 portion of each respective line item. (2) No significant revenue was recognized related to past performance obligations in the current period. |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] | As of September 30, 2019 , the amounts allocated to contract assets and contract liabilities on the Consolidated Balance Sheets are $207 million and are reflected in the amounts below. This will be recognized as revenue as the obligations are satisfied, which is expected to occur over the next 25 years . Further, MPLX does not disclose variable consideration due to volume variability in the table below. (In millions) 2019 $ 408 2020 1,620 2021 1,601 2022 1,567 2023 and thereafter 6,581 Total revenue on remaining performance obligations (1),(2),(3) $ 11,777 (1) All fixed consideration from contracts with customers is included in the amounts presented above. Variable consideration that is constrained or not required to be estimated as it reflects our efforts to perform is excluded. (2) Arrangements deemed implicit leases are included in “Rental income” and are excluded from this table. (3) Only minimum volume commitments that are deemed fixed are included in the table above. MPLX has various minimum volume commitments in processing arrangements that vary based on the actual Btu content of the gas received. These amounts are deemed variable consideration and are excluded from the table above. |
Supplemental Cash Flow Inform_2
Supplemental Cash Flow Information (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Supplemental Cash Flow Elements [Abstract] | |
Schedule of Cash and Cash Equivalents [Table Text Block] | (In millions) September 30, 2019 December 31, 2018 Cash and cash equivalents $ 41 $ 77 Restricted cash (1) — 8 Cash, cash equivalents and restricted cash $ 41 $ 85 (1) The restricted cash balance is included within “Other current assets” on the Consolidated Balance Sheets. |
Summary of Supplemental Cash Flow Information [Table Text Block] | Nine Months Ended September 30, (In millions) 2019 2018 Net cash provided by operating activities included: Interest paid (net of amounts capitalized) $ 648 $ 293 Income taxes paid — 1 Cash paid for amounts included in the measurement of lease liabilities Payments on operating leases 62 — Interest payment under finance lease obligations 1 — Net cash provided by financing activities included: Principal payments under finance lease obligations 4 — Non-cash investing and financing activities: Net transfers of property, plant and equipment from materials and supplies inventories 1 2 MPLX terminal lease classification change 21 — ROU assets obtained in exchange for new operating lease obligations 13 — ROU assets obtained in exchange for new finance lease obligations $ 4 $ — |
Summary of Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures [Table Text Block] | The following is the change of additions to property, plant and equipment related to capital accruals: Nine Months Ended September 30, (In millions) 2019 2018 (Decrease)/increase in capital accruals $ (67 ) $ 90 |
Accumulated Other Comprehensi_2
Accumulated Other Comprehensive Income (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Accumulated Other Comprehensive Income (Loss) [Line Items] | |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table shows the changes in “Accumulated other comprehensive loss” by component during the period December 31, 2018 through September 30, 2019 . (In millions) Pension Other Total Balance at December 31, 2018 (1) $ (14 ) $ (2 ) $ (16 ) Other comprehensive income - remeasurements (2) — 1 1 Balance at September 30, 2019 (1) $ (14 ) $ (1 ) $ (15 ) The following table shows the changes in “Accumulated other comprehensive loss” by component during the period December 31, 2017 through September 30, 2018 . (In millions) Pension Benefits Other Post-Retirement Benefits Total Balance at December 31, 2017 (1) $ (13 ) $ (1 ) $ (14 ) Other comprehensive loss - remeasurements (2) (1 ) (1 ) (2 ) Balance at September 30, 2018 (1) $ (14 ) $ (2 ) $ (16 ) (1) These components of “Accumulated other comprehensive loss” are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included on the Consolidated Statements of Income under the caption “Income/(loss) from equity method investments.” |
Equity-Based Compensation Plan
Equity-Based Compensation Plan (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Phantom Units | |
Equity Transactions And Share Based Compensation [Line Items] | |
Summary of Share-based Compensation, Restricted Stock Units Award Activity | The following is a summary of phantom unit award activity of MPLX LP common units for the nine months ended September 30, 2019 : Number Weighted Outstanding at December 31, 2018 1,154,335 $ 34.34 Granted 207,515 32.96 Legacy ANDX phantom units converted to MPLX phantom units at the Merger 208,533 43.64 Settled (420,374 ) 33.76 Forfeited (42,464 ) 33.53 Outstanding at September 30, 2019 1,107,545 $ 36.09 |
Performance Shares [Member] | |
Equity Transactions And Share Based Compensation [Line Items] | |
Summary of Share-based Compensation, Restricted Stock Units Award Activity | The following is a summary of the activity for performance unit awards to be settled in MPLX LP common units for the nine months ended September 30, 2019 : Number of Outstanding at December 31, 2018 1,941,750 Granted 987,994 Settled (772,397 ) Forfeited — Outstanding at September 30, 2019 2,157,347 |
Leases Lessee Disclosure (Table
Leases Lessee Disclosure (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Lessee Disclosure [Abstract] | |
Lease, Cost [Table Text Block] | Under ASC 842, the components of lease cost were as follows: Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 (In millions) Related Party Third Party Related Party Third Party Components of lease cost: Operating lease cost $ 4 $ 19 $ 11 $ 56 Finance lease cost: Amortization of ROU assets — 1 — 4 Interest on lease liabilities — — — 1 Total finance lease cost — 1 — 5 Variable lease cost — 3 — 7 Short-term lease cost — 20 — 56 Total lease cost $ 4 $ 43 $ 11 $ 124 |
Supplemental Balance Sheet Disclosures [Text Block] | Supplemental balance sheet data related to leases is as follows: September 30, 2019 (In millions) Related Party Third Party Operating leases Assets Right of use assets $ 232 $ 366 Liabilities Operating lease liabilities 1 61 Long-term operating lease liabilities 231 309 Total operating lease liabilities $ 232 $ 370 Weighted average remaining lease term 47.44 years 8.86 years Weighted average discount rate 5.80 % 4.48 % Finance leases Assets Property, plant and equipment, gross $ 49 Accumulated depreciation 21 Property, plant and equipment, net 28 Liabilities Other current liabilities 9 Long-term debt 11 Total finance lease liabilities $ 20 Weighted average remaining lease term 10.00 years Weighted average discount rate 5.81 % |
Schedule of Future Minimum Lease Payments for Operating and Finance Leases [Table Text Block] | As of September 30, 2019 , maturities of lease liabilities for operating lease obligations and finance lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Related Party Operating Third Party Operating Finance 2019 $ 5 $ 21 $ 1 2020 14 74 10 2021 14 68 2 2022 14 59 2 2023 14 55 2 2024 and thereafter 619 173 11 Gross lease payments 680 450 28 Less: imputed interest 448 80 8 Total lease liabilities $ 232 $ 370 $ 20 Future minimum commitments as of December 31, 2018, for capital lease obligations and for operating lease obligations having initial or remaining non-cancellable lease terms in excess of one year are as follows: (In millions) Operating Capital Lease Obligations 2019 $ 90 $ 5 2020 88 8 2021 83 3 2022 76 2 2023 70 2 2024 and thereafter 825 4 Total minimum lease payments $ 1,232 24 Less: imputed interest costs 3 Present value of net minimum lease payments $ 21 |
Leases Lessor Disclosure (Table
Leases Lessor Disclosure (Tables) | 9 Months Ended |
Sep. 30, 2019 | |
Lessor Disclosure [Abstract] | |
Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block] | The following is a schedule of minimum future rental revenue on the non-cancellable operating leases as of September 30, 2019 : (In millions) Related Party Third Party Total 2019 $ 294 $ 47 $ 341 2020 1,179 186 1,365 2021 1,175 178 1,353 2022 1,171 176 1,347 2023 1,118 170 1,288 2024 and thereafter 3,904 1,269 5,173 Total minimum future rentals $ 8,841 $ 2,026 $ 10,867 |
Schedule of Property Subject to or Available for Operating Lease [Table Text Block] | The following schedule summarizes MPLX’s investment in assets held for operating lease by major classes as of September 30, 2019 and December 31, 2018 : (In millions) September 30, 2019 December 31, 2018 Natural gas gathering and NGL transportation pipelines and facilities $ 1,061 $ 964 Processing, fractionation and storage facilities 1,911 1,670 Pipelines and related assets 364 376 Barges and towing vessels 674 619 Terminals and related assets 1,316 1,415 Refinery related assets 998 981 Land, building, office equipment and other 270 187 Total 6,594 6,212 Less accumulated depreciation 2,271 2,074 Property, plant and equipment, net $ 4,323 $ 4,138 |
Schedule of Future Minimum Rental Payments Receivable for Operating Leases [Table Text Block] | The following is a schedule of minimum future rental revenue on the non-cancellable operating leases as of December 31, 2018: (In millions) Related Party Third Party Total 2019 $ 1,277 $ 171 $ 1,448 2020 1,275 163 1,438 2021 1,146 154 1,300 2022 1,143 151 1,294 2023 1,094 145 1,239 2024 and thereafter 3,786 1,114 4,900 Total minimum future rentals $ 9,721 $ 1,898 $ 11,619 |
Description of Business and Bas
Description of Business and Basis of Presentation - Additional Information (Detail) | Jul. 30, 2019shares | Sep. 30, 2019 |
Description Of Business And Basis Of Presentation [Line Items] | ||
Number of reportable segments | 2 | |
ANDX LP [Member] | Public | ||
Description Of Business And Basis Of Presentation [Line Items] | ||
Common Units Conversion Ratio - ANDX to MPLX | 1.135 | |
ANDX LP [Member] | Nonpublic [Member] | ||
Description Of Business And Basis Of Presentation [Line Items] | ||
Common Units Conversion Ratio - ANDX to MPLX | 1.0328 |
Accounting Standards Impact of
Accounting Standards Impact of Adoption of ASC 842 (Details) - Accounting Standards Update 2016-02 [Member] $ in Millions | Jan. 01, 2019USD ($) |
Operating Lease Right Of Use Asset [Member] | |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 629 |
Operating Lease Liability [Member] | |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 629 |
ANDX LP [Member] | Operating Lease Right Of Use Asset [Member] | |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 124 |
ANDX LP [Member] | Operating Lease Liability [Member] | |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 127 |
Acquisitions Andeavor Logistics
Acquisitions Andeavor Logistics (Details) - USD ($) $ in Millions | Jul. 30, 2019 | Oct. 01, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 09, 2019 | Jul. 29, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | |||||
Business Acquisition [Line Items] | |||||||||||||||||||
Cash and cash equivalents | $ 41 | $ 41 | $ 77 | ||||||||||||||||
Receivables, net | 570 | 570 | 611 | ||||||||||||||||
Current Assets, Related Parties | 660 | 660 | 556 | ||||||||||||||||
Inventories | 104 | 104 | 98 | ||||||||||||||||
Other current assets | 65 | 65 | 98 | ||||||||||||||||
Assets, Current | 1,440 | 1,440 | 1,440 | ||||||||||||||||
Equity method investments | 5,182 | 5,182 | 4,901 | ||||||||||||||||
Property, plant and equipment, net | 21,892 | 21,892 | 21,525 | ||||||||||||||||
Intangibles, net | 1,309 | 1,309 | 1,359 | ||||||||||||||||
Other noncurrent assets | 55 | 55 | 60 | ||||||||||||||||
Assets | 41,281 | 41,281 | 39,325 | ||||||||||||||||
Accounts payable | 196 | 196 | 266 | ||||||||||||||||
Accrued Liabilities, Current | 185 | 185 | 272 | ||||||||||||||||
Current Liabilities, Related Parties | 562 | 562 | 502 | ||||||||||||||||
Accrued Property Plant and Equipment Current | 346 | 346 | 399 | ||||||||||||||||
Accrued interest payable | 226 | 226 | 184 | ||||||||||||||||
Other current liabilities | 656 | 656 | 645 | ||||||||||||||||
Liabilities, Current | 2,232 | 2,232 | 2,268 | ||||||||||||||||
Long-term deferred revenue | 189 | 189 | 132 | ||||||||||||||||
Liabilities, Related Parties, Noncurrent | 293 | 293 | 46 | ||||||||||||||||
Long-term debt | 19,190 | 19,190 | 17,922 | ||||||||||||||||
Deferred income taxes | 15 | 15 | 14 | ||||||||||||||||
Deferred credits and other liabilities | 193 | 193 | 208 | ||||||||||||||||
Liabilities | 22,421 | 22,421 | 20,590 | ||||||||||||||||
Series A preferred units | 968 | 968 | 1,004 | ||||||||||||||||
Total MPLX LP partners’ capital | 17,642 | 17,642 | 17,575 | ||||||||||||||||
Accumulated other comprehensive loss | [1] | (15) | (15) | (16) | $ (16) | $ (14) | |||||||||||||
Revenues | 2,280 | $ 1,712 | 6,725 | $ 4,710 | |||||||||||||||
Goodwill | 10,735 | 10,735 | 10,016 | ||||||||||||||||
Other Assets, Related Parties, Noncurrent | 302 | 302 | 24 | ||||||||||||||||
Net Income (Loss) Attributable to Parent | 629 | [2] | 510 | [2] | 1,614 | 1,384 | [2] | ||||||||||||
Acquisition Costs, Period Cost | 9 | 0 | 14 | 3 | |||||||||||||||
Noncontrolling interests | 250 | 250 | 156 | ||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 17,892 | 6,953 | 17,892 | 6,953 | $ 17,611 | $ 17,730 | 17,731 | 6,952 | $ 6,978 | 9,973 | |||||||||
Liabilities and Equity | 41,281 | 41,281 | 39,325 | ||||||||||||||||
Net income | 689 | 516 | 2,035 | 1,395 | |||||||||||||||
Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Revenues | 612 | 2,312 | 1,789 | 6,371 | |||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | $ 30 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | 497 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | 21 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | [3] | 52 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Equity Method Investments | 642 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 6,282 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 1,034 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | [4] | 23 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 8,581 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | 463 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | [5] | 147 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt | 4,916 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | [6] | 76 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 5,602 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 2,979 | ||||||||||||||||||
Goodwill | 8,155 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest | 11,134 | ||||||||||||||||||
Net Income (Loss) Attributable to Parent | 681 | 679 | 2,015 | 1,840 | |||||||||||||||
Acquisition Costs, Period Cost | 14 | ||||||||||||||||||
Net income | 191 | 539 | |||||||||||||||||
ANDX LP [Member] | Public | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Common Units Conversion Ratio - ANDX to MPLX | 1.135 | ||||||||||||||||||
ANDX LP [Member] | Nonpublic [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Common Units Conversion Ratio - ANDX to MPLX | 1.0328 | ||||||||||||||||||
Senior Notes [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Long-term Debt, Gross | $ 2,000 | ||||||||||||||||||
Senior Notes [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Long-term Debt, Gross | $ 1,100 | ||||||||||||||||||
Minimum [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Finite-Lived Intangible Asset, Useful Life | 2 years | ||||||||||||||||||
Maximum [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Finite-Lived Intangible Asset, Useful Life | 10 years | ||||||||||||||||||
Customer Contracts [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | $ 950 | ||||||||||||||||||
ANDX Bank Revolving Credit Facilities [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Line of Credit Facility, Current Borrowing Capacity | $ 2,100 | ||||||||||||||||||
Limited Partners Common Units | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Net Income (Loss) Attributable to Parent | [2] | 599 | 491 | 1,522 | 1,329 | ||||||||||||||
Public | Limited Partners Common Units | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | 11,289 | 11,289 | 8,336 | ||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 11,289 | 8,367 | 11,289 | 8,367 | 8,305 | 8,326 | 8,336 | 8,366 | 8,385 | 8,379 | |||||||||
MPC | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Other current assets | 6 | 6 | 0 | ||||||||||||||||
MPC | Limited Partners Common Units | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | 5,767 | 5,767 | (1,612) | ||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 5,767 | (1,553) | 5,767 | (1,553) | (1,671) | (1,632) | (1,612) | (1,548) | (1,537) | 2,099 | |||||||||
Retained Earnings [Member] | MPC | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 0 | $ 0 | 0 | $ 0 | $ 10,742 | $ 10,801 | 10,867 | $ 0 | $ 0 | $ 0 | |||||||||
LOOP and Explorer | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Accumulated other comprehensive loss | $ (15) | $ (15) | (16) | ||||||||||||||||
Previously Reported [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Cash and cash equivalents | 68 | ||||||||||||||||||
Receivables, net | 417 | ||||||||||||||||||
Current Assets, Related Parties | 290 | ||||||||||||||||||
Inventories | 77 | ||||||||||||||||||
Other current assets | 45 | ||||||||||||||||||
Assets, Current | 897 | ||||||||||||||||||
Equity method investments | 4,174 | ||||||||||||||||||
Property, plant and equipment, net | 14,639 | ||||||||||||||||||
Intangibles, net | 424 | ||||||||||||||||||
Other noncurrent assets | 35 | ||||||||||||||||||
Assets | 22,779 | ||||||||||||||||||
Accounts payable | 162 | ||||||||||||||||||
Accrued Liabilities, Current | 250 | ||||||||||||||||||
Current Liabilities, Related Parties | 254 | ||||||||||||||||||
Accrued Property Plant and Equipment Current | 294 | ||||||||||||||||||
Accrued interest payable | 143 | ||||||||||||||||||
Other current liabilities | 83 | ||||||||||||||||||
Liabilities, Current | 1,186 | ||||||||||||||||||
Long-term deferred revenue | 80 | ||||||||||||||||||
Liabilities, Related Parties, Noncurrent | 43 | ||||||||||||||||||
Long-term debt | 13,392 | ||||||||||||||||||
Deferred income taxes | 13 | ||||||||||||||||||
Deferred credits and other liabilities | 197 | ||||||||||||||||||
Liabilities | 14,911 | ||||||||||||||||||
Series A preferred units | 1,004 | ||||||||||||||||||
Total MPLX LP partners’ capital | 6,708 | ||||||||||||||||||
Goodwill | 2,586 | ||||||||||||||||||
Other Assets, Related Parties, Noncurrent | 24 | ||||||||||||||||||
Noncontrolling interests | 156 | ||||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 6,864 | ||||||||||||||||||
Liabilities and Equity | 22,779 | ||||||||||||||||||
Previously Reported [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | 83 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | 241 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | 21 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | [3] | 59 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Equity Method Investments | 731 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 6,709 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 960 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | [4] | 31 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 8,835 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | 198 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | [5] | 188 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt | 4,916 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | [6] | 75 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 5,377 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 3,458 | ||||||||||||||||||
Goodwill | 7,428 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest | 10,886 | ||||||||||||||||||
Previously Reported [Member] | Public | Limited Partners Common Units | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | 8,336 | ||||||||||||||||||
Previously Reported [Member] | MPC | Limited Partners Common Units | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | (1,612) | ||||||||||||||||||
Previously Reported [Member] | Retained Earnings [Member] | MPC | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 0 | ||||||||||||||||||
Previously Reported [Member] | LOOP and Explorer | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Accumulated other comprehensive loss | (16) | ||||||||||||||||||
Restatement Adjustment [Member] | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Cash and cash equivalents | 9 | ||||||||||||||||||
Receivables, net | 194 | ||||||||||||||||||
Current Assets, Related Parties | 266 | ||||||||||||||||||
Inventories | 21 | ||||||||||||||||||
Other current assets | 53 | ||||||||||||||||||
Assets, Current | 543 | ||||||||||||||||||
Equity method investments | 727 | ||||||||||||||||||
Property, plant and equipment, net | 6,886 | ||||||||||||||||||
Intangibles, net | 935 | ||||||||||||||||||
Other noncurrent assets | 25 | ||||||||||||||||||
Assets | 16,546 | ||||||||||||||||||
Accounts payable | 104 | ||||||||||||||||||
Accrued Liabilities, Current | 22 | ||||||||||||||||||
Current Liabilities, Related Parties | 248 | ||||||||||||||||||
Accrued Property Plant and Equipment Current | 105 | ||||||||||||||||||
Accrued interest payable | 41 | ||||||||||||||||||
Other current liabilities | 562 | ||||||||||||||||||
Liabilities, Current | 1,082 | ||||||||||||||||||
Long-term deferred revenue | 52 | ||||||||||||||||||
Liabilities, Related Parties, Noncurrent | 3 | ||||||||||||||||||
Long-term debt | 4,530 | ||||||||||||||||||
Deferred income taxes | 1 | ||||||||||||||||||
Deferred credits and other liabilities | 11 | ||||||||||||||||||
Liabilities | 5,679 | ||||||||||||||||||
Series A preferred units | 0 | ||||||||||||||||||
Total MPLX LP partners’ capital | 10,867 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | [7] | (53) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | [7] | 256 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | [7] | 0 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | [3],[7] | (7) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Equity Method Investments | [7] | (89) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | [7] | (427) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | [7] | 74 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | [4],[7] | (8) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | [7] | (254) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | [7] | 265 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | [5],[7] | (41) | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt | [7] | 0 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | [6],[7] | 1 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | [7] | 225 | |||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | [7] | (479) | |||||||||||||||||
Goodwill | 727 | [7] | 7,430 | ||||||||||||||||
Other Assets, Related Parties, Noncurrent | 0 | ||||||||||||||||||
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest | [7] | 248 | |||||||||||||||||
Noncontrolling interests | 0 | ||||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 10,867 | ||||||||||||||||||
Liabilities and Equity | 16,546 | ||||||||||||||||||
Restatement Adjustment [Member] | Public | Limited Partners Common Units | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | 0 | ||||||||||||||||||
Restatement Adjustment [Member] | MPC | Limited Partners Common Units | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Total MPLX LP partners’ capital | 0 | ||||||||||||||||||
Restatement Adjustment [Member] | Retained Earnings [Member] | MPC | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 10,867 | ||||||||||||||||||
Restatement Adjustment [Member] | LOOP and Explorer | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Accumulated other comprehensive loss | $ 0 | ||||||||||||||||||
L&S | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Goodwill | 7,200 | ||||||||||||||||||
G&P | Andeavor Logistics [Member] | |||||||||||||||||||
Business Acquisition [Line Items] | |||||||||||||||||||
Goodwill | $ 1,000 | ||||||||||||||||||
[1] | These components of “Accumulated other comprehensive loss” are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included on the Consolidated Statements of Income under the caption “Income/(loss) from equity method investments.” | ||||||||||||||||||
[2] | Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. | ||||||||||||||||||
[3] | Includes both related party and third party other current assets. | ||||||||||||||||||
[4] | Includes both related party and third party other noncurrent assets. | ||||||||||||||||||
[5] | Includes accrued liabilities, operating lease liabilities and long-term debt due within one year, as well as related party and third party other current liabilities. | ||||||||||||||||||
[6] | Includes deferred revenue and deferred income taxes, as well as related party and third party other noncurrent liabilities. | ||||||||||||||||||
[7] | Inclusive of activity recorded subsequent to the acquisition of ANDX on July 30, 2019, a portion of which was recorded as a non-cash contribution from MPC. |
Acquisitions Mt. Airy Terminal
Acquisitions Mt. Airy Terminal (Details) bbl / d in Thousands, bbl in Millions, $ in Millions | Sep. 26, 2018USD ($)bbl / dbbl | Mar. 31, 2019USD ($) | Sep. 30, 2019USD ($) | Dec. 31, 2018USD ($) |
Goodwill, Purchase Accounting Adjustments | $ (5) | |||
Goodwill | $ 10,735 | $ 10,016 | ||
Mt. Airy Terminal [Member] | ||||
Payments to Acquire Businesses, Gross | $ 451 | 446 | ||
Storage Capacity | bbl | 4 | |||
Barrels Handled | bbl / d | 120 | |||
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 336 | |||
Goodwill | $ 121 |
Acquisitions Refining Logistics
Acquisitions Refining Logistics & Fuels Distribution (Details) bbl in Millions, $ in Millions | Feb. 01, 2018USD ($)Tanksharesbbl | Sep. 30, 2019USD ($) | Jun. 30, 2019USD ($) | Mar. 31, 2019USD ($) | Mar. 31, 2018USD ($) | Sep. 30, 2019USD ($)shares | Dec. 31, 2018USD ($) |
Business Acquisition [Line Items] | |||||||
Contributions from: | $ 295 | $ 13 | $ 15 | $ 1,046 | |||
Property, plant and equipment, net | 21,892 | $ 21,892 | $ 21,525 | ||||
Goodwill | 10,735 | $ 10,735 | $ 10,016 | ||||
Number of storage tanks | Tank | 619 | ||||||
Number of rail and truck racks | 32 | ||||||
Number of docks and gasoline blenders | 18 | ||||||
Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Payments to Acquire Businesses, Gross | $ 4,100 | ||||||
Equity interest issued or issuable, fair value assigned | 4,300 | ||||||
Total consideration, fair value assigned | $ 8,400 | ||||||
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest | 2.00% | ||||||
Property, plant and equipment, net | $ 830 | ||||||
Refining Logistics [Member] | |||||||
Business Acquisition [Line Items] | |||||||
Goodwill | 85 | ||||||
Fuels Distribution [Member] | |||||||
Business Acquisition [Line Items] | |||||||
Goodwill | $ 130 | ||||||
Limited Partners Common Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 262,829,592 | ||||||
General Partner Common Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 85,610,278 | ||||||
MPLX LP | Limited Partners Common Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 111,611,111 | ||||||
MPLX LP | General Partner Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 2,277,778 | ||||||
MPLX Logistics LLC | Limited Partners Common Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 18,176,666 | ||||||
MPLX Holdings Inc | Limited Partners Common Units | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Partners' Capital Account, Units, Acquisitions | shares | 7,824,167 | ||||||
MPC | Refining Logistics & Fuels Distribution | |||||||
Business Acquisition [Line Items] | |||||||
Contributions from: | $ 23.7 | ||||||
MPC | Limited Partners Common Units | |||||||
Business Acquisition [Line Items] | |||||||
Contributions from: | $ 292 | ||||||
Crude Oil [Member] | |||||||
Business Acquisition [Line Items] | |||||||
Storage Capacity | bbl | 56 |
Equity Method Investments - Sum
Equity Method Investments - Summary of Equity Method Investment Financial Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||||||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | ||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | $ 5,182 | $ 5,182 | $ 4,901 | |||||
Revenues and other income | [1] | 1,595 | $ 1,307 | |||||
Costs and expenses | [1] | 685 | 697 | |||||
Income (loss) from operations | [1] | 910 | 610 | |||||
Net income (loss) | [1] | 797 | 552 | |||||
Income from equity method investments | 95 | $ 64 | 255 | [1],[2] | 175 | [1],[2] | ||
Current assets | [3] | 766 | 766 | 667 | ||||
Noncurrent assets | [3] | 10,633 | 10,633 | 9,086 | ||||
Current liabilities | [3] | 582 | 582 | 438 | ||||
Noncurrent liabilities | [3] | $ 1,108 | $ 1,108 | 1,036 | ||||
MarEn Bakken Company LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 25.00% | 25.00% | ||||||
Illinois Extension | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 35.00% | 35.00% | ||||||
LOOP | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 41.00% | 41.00% | ||||||
Explorer | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 25.00% | 25.00% | ||||||
MarkWest Utica EMG | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 56.00% | 56.00% | ||||||
Sherwood Midstream | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 50.00% | 50.00% | ||||||
Jefferson Dry Gas | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 67.00% | 67.00% | ||||||
Centrahoma Processing LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 40.00% | 40.00% | ||||||
Other VIEs [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Revenues and other income | [1] | $ 479 | 340 | |||||
Costs and expenses | [1] | 251 | 202 | |||||
Income (loss) from operations | [1] | 228 | 138 | |||||
Net income (loss) | [1] | 192 | 135 | |||||
Income from equity method investments | [1],[2] | 89 | 44 | |||||
Current assets | [3] | $ 378 | 378 | 252 | ||||
Noncurrent assets | [3] | 5,469 | 5,469 | 3,796 | ||||
Current liabilities | [3] | 328 | 328 | 158 | ||||
Noncurrent liabilities | [3] | 265 | 265 | 191 | ||||
Non-VIEs [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Revenues and other income | [1] | 1,116 | 967 | |||||
Costs and expenses | [1] | 434 | 495 | |||||
Income (loss) from operations | [1] | 682 | 472 | |||||
Net income (loss) | [1] | 605 | 417 | |||||
Income from equity method investments | [1],[2] | 166 | 131 | |||||
Current assets | [3] | 388 | 388 | 415 | ||||
Noncurrent assets | [3] | 5,164 | 5,164 | 5,290 | ||||
Current liabilities | [3] | 254 | 254 | 280 | ||||
Noncurrent liabilities | [3] | $ 843 | $ 843 | 845 | ||||
Indirect Ownership Interest [Member] | Sherwood Midstream Holdings | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 22.90% | 22.90% | ||||||
Direct Ownership Interest [Member] | Andeavor Logistics Rio Pipeline [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 67.00% | 67.00% | ||||||
Direct Ownership Interest [Member] | Minnesota Pipe Line Company, LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 17.00% | 17.00% | ||||||
Direct Ownership Interest [Member] | Rendezvous Gas Services, L.L.C. [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 78.00% | 78.00% | ||||||
Direct Ownership Interest [Member] | Sherwood Midstream Holdings | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investment, ownership percentage | 54.00% | 54.00% | ||||||
G&P | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Difference between carrying amount and underlying equity | $ 1,000 | $ 1,000 | 1,300 | |||||
Difference between carrying amount and underlying equity portion related to goodwill | 542 | 542 | 459 | |||||
G&P | MarkWest Utica EMG | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 2,017 | 2,017 | 2,039 | |||||
G&P | Sherwood Midstream | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 502 | 502 | 366 | |||||
G&P | Jefferson Dry Gas | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 291 | 291 | 236 | |||||
G&P | Rendezvous Gas Services, L.L.C. [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | [4] | 174 | 174 | 248 | ||||
G&P | Sherwood Midstream Holdings | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 159 | 159 | 157 | |||||
G&P | Centrahoma Processing LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 155 | 155 | 160 | |||||
G&P | Other VIEs and Non-VIEs [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | [4] | 212 | 212 | 177 | ||||
L&S | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Difference between carrying amount and underlying equity | 329 | 329 | 187 | |||||
Difference between carrying amount and underlying equity portion related to goodwill | 167 | 167 | 39 | |||||
L&S | MarEn Bakken Company LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 483 | 483 | 498 | |||||
L&S | Illinois Extension | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 275 | 275 | 275 | |||||
L&S | LOOP | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 239 | 239 | 226 | |||||
L&S | Andeavor Logistics Rio Pipeline [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | [4] | 201 | 201 | 181 | ||||
L&S | Minnesota Pipe Line Company, LLC [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | [4] | 192 | 192 | 197 | ||||
L&S | Explorer | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 83 | 83 | 90 | |||||
L&S | Other VIEs and Non-VIEs [Member] | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | [4] | 199 | 199 | 51 | ||||
Operating Segments | G&P | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 3,510 | 3,510 | 3,383 | |||||
Income from equity method investments | 35 | 21 | 96 | 52 | ||||
Operating Segments | L&S | ||||||||
Schedule of Equity Method Investments [Line Items] | ||||||||
Equity method investments | 1,672 | 1,672 | $ 1,518 | |||||
Income from equity method investments | $ 60 | $ 43 | $ 159 | $ 123 | ||||
[1] | The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. | |||||||
[2] | Includes the impact of any basis differential amortization or accretion. | |||||||
[3] | The financial information for equity method investments at September 30, 2019 and December 31, 2018 is inclusive of financial information of equity method investments acquired as part of the Merger. See Note 3 for additional details. | |||||||
[4] | These investments as well as certain investments included within “Other” for both L&S and G&P are investments acquired as part of the Merger. The September 30, 2019 balance reflects all purchase accounting adjustments identified by MPC as part of its acquisition of Andeavor. |
Related Party Agreements and _3
Related Party Agreements and Transactions - Additional Information (Detail) - USD ($) $ in Millions | 9 Months Ended | |
Sep. 30, 2019 | Sep. 30, 2018 | |
Related Party Transaction [Line Items] | ||
Related Party Transaction, Purchases from Related Party | $ 1 | $ 2 |
Revenue from Related Parties | $ 1 | $ 3 |
Related Party Agreements and _4
Related Party Agreements and Transactions MPC Loan Agreement (Details) - Related Party Revolving Credit Agreement [Member] - MPC Investment [Member] - USD ($) $ in Millions | Jul. 31, 2019 | Apr. 27, 2018 | Sep. 30, 2019 | Dec. 31, 2018 | Dec. 21, 2018 | Apr. 26, 2018 | |
Related Party Transaction [Line Items] | |||||||
Line of Credit Facility, Current Borrowing Capacity | $ 1,500 | $ 1,000 | $ 500 | ||||
Debt Instrument, Description of Variable Rate Basis | LIBOR plus 1.25 percent | LIBOR plus 1.50 percent | |||||
Proceeds from Lines of Credit | $ 6,935 | $ 3,962 | |||||
Line of Credit Facility, Interest Rate During Period | 3.64% | 3.473% | |||||
Repayments of Lines of Credit | $ 6,810 | $ 4,347 | |||||
Long-term Line of Credit | [1] | 125 | $ 0 | ||||
ANDX LP [Member] | |||||||
Related Party Transaction [Line Items] | |||||||
Line of Credit Facility, Current Borrowing Capacity | $ 500 | ||||||
Proceeds from Lines of Credit | $ 773 | ||||||
Line of Credit Facility, Interest Rate During Period | 4.249% | ||||||
Repayments of Lines of Credit | $ 773 | ||||||
Long-term Line of Credit | [1] | $ 0 | |||||
[1] | Included in “Current liabilities - related parties” on the Consolidated Balance Sheets. |
Sales to Related Parties (Detai
Sales to Related Parties (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||
Related Party Transaction [Line Items] | |||||
Revenue from Related Parties | $ 1 | $ 3 | |||
Rental income - related parties | $ 293 | $ 190 | 904 | 525 | |
Other income - related parties | 31 | 26 | 84 | 73 | |
Related Party Transaction, Purchases from Related Party | 1 | 2 | |||
MPC | |||||
Related Party Transaction [Line Items] | |||||
Rental income - related parties | 293 | 190 | 904 | 525 | |
Other income - related parties | 14 | 11 | 34 | 31 | |
Product sales to MPC that net to zero | 301 | 137 | 819 | 328 | |
Other Affiliates [Member] | |||||
Related Party Transaction [Line Items] | |||||
Other income - related parties | 17 | 15 | 50 | 42 | |
Product [Member] | |||||
Related Party Transaction [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 32 | 18 | 109 | 35 | |
Product [Member] | MPC | |||||
Related Party Transaction [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | [1] | 32 | 18 | 109 | 35 |
Service [Member] | |||||
Related Party Transaction [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 899 | 568 | 2,549 | 1,588 | |
Service [Member] | MPC | |||||
Related Party Transaction [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | $ 899 | $ 568 | $ 2,549 | $ 1,588 | |
[1] | There were additional product sales to MPC that net to zero within the consolidated financial statements as the transactions are recorded net due to the terms of the agreements under which such product was sold. For the three and nine months ended September 30, 2019 , these sales totaled $301 million and $819 million , respectively. For the three and nine months ended September 30, 2018 , these sales totaled $137 million and $328 million , respectively. |
Summary of Charges for Employee
Summary of Charges for Employee Services and Omnibus Agreements (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | |
MPC | ||||
Related Party Transaction [Line Items] | ||||
Labor and Related Expense | $ 407 | $ 277 | $ 1,192 | $ 761 |
MPC | Rental cost of sales - related parties | ||||
Related Party Transaction [Line Items] | ||||
Labor and Related Expense | 45 | 1 | 124 | 2 |
MPC | Purchases - related parties | ||||
Related Party Transaction [Line Items] | ||||
Labor and Related Expense | 297 | 228 | 878 | 628 |
MPC | General and administrative expenses | ||||
Related Party Transaction [Line Items] | ||||
Labor and Related Expense | 59 | 48 | 174 | 131 |
Other Affiliates [Member] | Purchases - related parties | ||||
Related Party Transaction [Line Items] | ||||
Labor and Related Expense | 6 | 0 | 16 | 0 |
Construction-in-progress | MPC | ||||
Related Party Transaction [Line Items] | ||||
Property, Plant and Equipment, Additions | $ 48 | $ 46 | $ 127 | $ 109 |
Other Assets and Liabilities fr
Other Assets and Liabilities from Related Parties (Detail) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Related Party Transaction [Line Items] | ||
Other current assets | $ 65 | $ 98 |
Current Assets, Related Parties | 660 | 556 |
Operating Lease, Right-of-Use Asset | 366 | 0 |
Other Assets, Related Parties, Noncurrent | 302 | 24 |
Operating Lease, Liability, Current | 61 | 0 |
Current Liabilities, Related Parties | 562 | 502 |
Operating Lease, Liability, Noncurrent | 309 | 0 |
Liabilities, Related Parties, Noncurrent | 293 | 46 |
MPC | ||
Related Party Transaction [Line Items] | ||
Receivables - related parties | 623 | 542 |
Prepaid Insurance | 6 | 5 |
Other current assets | 6 | 0 |
Sales-type Lease, Interest Income | 3 | 0 |
Sales-type Lease, Unguaranteed Residual Asset | 6 | 0 |
Due from Related Parties, Noncurrent | 20 | 24 |
Operating Lease, Right-of-Use Asset | 232 | 0 |
Net Investment in Lease, Noncurrent | 44 | 0 |
Due to Related Parties, Current | 477 | 360 |
Operating Lease, Liability, Current | 1 | 0 |
Operating Lease, Liability, Noncurrent | 231 | 0 |
Other Affiliates [Member] | ||
Related Party Transaction [Line Items] | ||
Receivables - related parties | 22 | 9 |
Due to Related Parties, Current | 34 | 76 |
Minimum Committed Volume Contracts [Member] | MPC | ||
Related Party Transaction [Line Items] | ||
Deferred Revenue Related Parties | 40 | 57 |
Reimbursable Projects [Member] | MPC | ||
Related Party Transaction [Line Items] | ||
Deferred Revenue Related Parties | 9 | 9 |
Deferred Revenue, Noncurrent, Related Parties | 53 | 46 |
Other Noncurrent Liabilities [Member] | MPC | ||
Related Party Transaction [Line Items] | ||
Deferred Revenue Related Parties | 1 | 0 |
Other Noncurrent Liabilities [Member] | MPC | ||
Related Party Transaction [Line Items] | ||
Deferred Revenue, Noncurrent, Related Parties | $ 9 | $ 0 |
Net Income Per Limited Partne_4
Net Income Per Limited Partner Unit - Schedule of Distributions by Partner by Class (Detail) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended | ||||||||||
Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||||||
Net Income Per Share [Line Items] | ||||||||||||
Potentially dilutive units | 1 | 1 | 1 | 1 | ||||||||
Net income attributable to MPLX LP | $ 629 | [1] | $ 510 | [1] | $ 1,614 | $ 1,384 | [1] | |||||
Less: Distribution declared | 734 | 526 | 1,526 | |||||||||
Undistributed net income (loss) attributable to MPLX LP | (105) | (16) | (142) | |||||||||
Undistributed net loss attributable to MPLX LP | (105) | (16) | (397) | (142) | ||||||||
Contributions from: | 295 | $ 13 | $ 15 | $ 1,046 | ||||||||
Series A Preferred Stock [Member] | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Net income attributable to MPLX LP | [1] | 1,614 | ||||||||||
Less: Distribution declared | 2,011 | |||||||||||
Undistributed net income (loss) attributable to MPLX LP | (397) | |||||||||||
Limited Partners Common Units | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Net income attributable to MPLX LP | [1] | 599 | 491 | 1,522 | 1,329 | |||||||
Less: Distribution declared | [2] | 704 | [3] | 507 | 1,919 | [3] | 1,471 | |||||
Undistributed net income (loss) attributable to MPLX LP | (105) | (16) | (397) | (142) | ||||||||
MPC | Limited Partners Common Units | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Contributions from: | 292 | |||||||||||
MPC | ANDX LP [Member] | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Contributions from: | 12.5 | 25 | ||||||||||
Series A Preferred Stock [Member] | Series A Preferred Stock [Member] | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Net income attributable to MPLX LP | [1] | 20 | 19 | 61 | 55 | |||||||
Less: Distribution declared | [2] | 20 | 19 | 61 | 55 | |||||||
Undistributed net income (loss) attributable to MPLX LP | 0 | 0 | 0 | 0 | ||||||||
Series B Preferred Stock [Member] | Series A Preferred Stock [Member] | ||||||||||||
Net Income Per Share [Line Items] | ||||||||||||
Net income attributable to MPLX LP | [1] | 10 | 31 | |||||||||
Less: Distribution declared | [2] | 10 | $ 0 | 31 | $ 0 | |||||||
Undistributed net income (loss) attributable to MPLX LP | $ 0 | $ 0 | ||||||||||
[1] | Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. | |||||||||||
[2] | See Note 7 for distribution information. | |||||||||||
[3] | The three and nine months ended September 30, 2019 amounts are net of $12.5 million and $25 million of quarterly waived distributions with respect to units held by MPC and its affiliates. Three Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 704 $ 20 $ 10 $ 734 Undistributed net loss attributable to MPLX LP (105 ) — — (105 ) Net income attributable to MPLX LP (1) $ 599 $ 20 $ 10 $ 629 Weighted average units outstanding: Basic (2) 974 31 — 1,005 Diluted (2) 975 31 — 1,006 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.61 Diluted $ 0.61 |
Net Income Per Limited Partne_5
Net Income Per Limited Partner Unit - Basic and Diluted Earnings Per Unit (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended | |||||||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||||||
Net income (loss) attributable to MPLX LP: | |||||||||
Undistributed net income (loss) attributable to MPLX LP | $ (105) | $ (16) | $ (142) | ||||||
Net income attributable to MPLX LP | $ 629 | [1] | $ 510 | [1] | $ 1,614 | $ 1,384 | [1] | ||
Weighted average units outstanding: | |||||||||
Common - basic (in shares) | 1,005 | [2] | 825 | 781 | |||||
Common - diluted (in shares) | 1,006 | [2] | 825 | 781 | |||||
Limited Partners Common Units | |||||||||
Net income (loss) attributable to MPLX LP: | |||||||||
Undistributed net income (loss) attributable to MPLX LP | $ (105) | $ (16) | (397) | $ (142) | |||||
Net income attributable to MPLX LP | [1] | $ 599 | $ 491 | $ 1,522 | $ 1,329 | ||||
Weighted average units outstanding: | |||||||||
Common - basic (in shares) | 974 | [2] | 794 | 855 | [2] | 750 | |||
Common - diluted (in shares) | 975 | [2] | 794 | 855 | [2] | 750 | |||
Net income attributable to MPLX LP per limited partner unit: | |||||||||
Basic (in USD per unit) | $ 0.61 | $ 0.62 | $ 1.78 | $ 1.77 | |||||
Diluted (in USD per unit) | $ 0.61 | $ 0.62 | $ 1.78 | $ 1.77 | |||||
Series A Preferred Stock [Member] | |||||||||
Net income (loss) attributable to MPLX LP: | |||||||||
Undistributed net income (loss) attributable to MPLX LP | $ (397) | ||||||||
Net income attributable to MPLX LP | [1] | $ 1,614 | |||||||
Weighted average units outstanding: | |||||||||
Common - basic (in shares) | [2] | 886 | |||||||
Common - diluted (in shares) | 886 | ||||||||
Series A Preferred Stock [Member] | Series A Preferred Stock [Member] | |||||||||
Net income (loss) attributable to MPLX LP: | |||||||||
Undistributed net income (loss) attributable to MPLX LP | $ 0 | $ 0 | $ 0 | $ 0 | |||||
Net income attributable to MPLX LP | [1] | $ 20 | $ 19 | $ 61 | $ 55 | ||||
Weighted average units outstanding: | |||||||||
Common - basic (in shares) | 31 | [2] | 31 | 31 | [2] | 31 | |||
Common - diluted (in shares) | 31 | [2] | 31 | 31 | [2] | 31 | |||
Series B Preferred Stock [Member] | Series A Preferred Stock [Member] | |||||||||
Net income (loss) attributable to MPLX LP: | |||||||||
Undistributed net income (loss) attributable to MPLX LP | $ 0 | $ 0 | |||||||
Net income attributable to MPLX LP | [1] | $ 10 | $ 31 | ||||||
[1] | Allocation of net income attributable to MPLX LP assumes all earnings for the period had been distributed based on the distribution priorities applicable to the period. | ||||||||
[2] | The Series B preferred units and the MPLX common units issued in connection with the Merger were not outstanding during the entire three months ended September 30, 2019. See Notes 3 and 7 for additional information about the treatment of these units. |
Equity - Changes in Partners Ca
Equity - Changes in Partners Capital, Unit Rollforward (Details) - USD ($) $ / shares in Units, $ in Millions | Jul. 30, 2019 | Jul. 29, 2019 | Feb. 01, 2018 | Sep. 30, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 |
Stockholders Equity [Line Items] | ||||||||||||||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excluding Portion Attributable to Temporary Equity | $ (669) | $ (636) | $ (669) | $ (497) | $ (436) | $ (407) | ||||||||
Partners, Total Subsequent Distribution Amount | 734 | 526 | $ 2,011 | $ 1,526 | ||||||||||
Contributions from: | 295 | 13 | 15 | 1,046 | ||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | (8) | (6) | (6) | (4) | (3) | (3) | ||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | $ 17,892 | $ 17,892 | 17,611 | $ 17,730 | 6,953 | 6,952 | 6,978 | $ 17,892 | 6,953 | $ 17,731 | $ 9,973 | |||
Limited Partners Common Units | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Balance at December 31, 2018 | 794,089,518 | 794,089,518 | ||||||||||||
Unit-based compensation awards | 287,019 | |||||||||||||
Balance at September 30, 2019 | 1,058,354,459 | 1,058,354,459 | 1,058,354,459 | |||||||||||
Partners' Capital Account, Units, Converted | 1,148,330 | |||||||||||||
Andeavor Logistics [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Preferred Units, Outstanding | 600,000 | 600,000 | ||||||||||||
ANDX LP [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Dividend rate, percentage | 6.875% | |||||||||||||
Price per share | $ 1,000 | |||||||||||||
Preferred Class B [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Partners, Total Subsequent Distribution Amount | $ 10 | 0 | $ 31 | 0 | ||||||||||
Preferred Class B [Member] | Preferred Partner [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excluding Portion Attributable to Temporary Equity | $ 7 | |||||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | (21) | 10 | 21 | |||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | $ 615 | $ 601 | 601 | $ 601 | ||||||||||
Refining Logistics & Fuels Distribution | Limited Partners Common Units | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Partners' Capital Account, Units, Acquisitions | 262,829,592 | |||||||||||||
Refining Logistics & Fuels Distribution | MPLX LP | Limited Partners Common Units | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Partners' Capital Account, Units, Acquisitions | 111,611,111 | |||||||||||||
MPC | Limited Partners Common Units | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excluding Portion Attributable to Temporary Equity | $ (380) | 293 | $ 307 | (312) | 276 | 225 | ||||||||
Units issued | 161,000,000 | 666,000,000 | 666,000,000 | 666,000,000 | 505,000,000 | |||||||||
Contributions from: | $ 292 | |||||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 0 | 0 | 0 | |||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | $ 5,767 | 5,767 | (1,671) | (1,632) | (1,553) | (1,548) | (1,537) | $ 5,767 | (1,553) | $ (1,612) | 2,099 | |||
MPC | Refining Logistics & Fuels Distribution | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Contributions from: | 23.7 | |||||||||||||
MPC | ANDX LP [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Contributions from: | 12.5 | $ 25 | ||||||||||||
Public | Limited Partners Common Units | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Excluding Portion Attributable to Temporary Equity | $ (222) | 168 | 176 | (179) | 157 | 180 | ||||||||
Units issued | 102,000,000 | 392,000,000 | 392,000,000 | 392,000,000 | 289,000,000 | |||||||||
Contributions from: | $ 0 | 0 | 0 | |||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 0 | 0 | 0 | |||||||||||
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | $ 11,289 | $ 11,289 | $ 8,305 | $ 8,326 | $ 8,367 | $ 8,366 | $ 8,385 | $ 11,289 | $ 8,367 | $ 8,336 | $ 8,379 | |||
Nonpublic [Member] | ANDX LP [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Common Units Conversion Ratio - ANDX to MPLX | 1.0328 | |||||||||||||
Public | ANDX LP [Member] | ||||||||||||||
Stockholders Equity [Line Items] | ||||||||||||||
Common Units Conversion Ratio - ANDX to MPLX | 1.135 |
Equity - Cash Distributions (De
Equity - Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Millions | Oct. 25, 2019 | Jul. 22, 2019 | Sep. 30, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Jul. 30, 2019 | |||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Contributions from: | $ 295 | $ 13 | $ 15 | $ 1,046 | |||||||||||
Distributions declared (including IDRs) | 734 | $ 526 | $ 1,526 | ||||||||||||
Partners, Total Subsequent Distribution Amount | 734 | 526 | $ 2,011 | 1,526 | |||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 8 | $ 6 | $ 6 | 4 | $ 3 | $ 3 | |||||||||
Limited Partners Common Units | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Partners, Total Subsequent Distribution Amount | 704 | 507 | 1,919 | 1,471 | |||||||||||
Preferred Units | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Partners, Total Subsequent Distribution Amount | 20 | 19 | 61 | 55 | |||||||||||
Preferred Class B [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Partners, Total Subsequent Distribution Amount | 10 | 0 | 31 | 0 | |||||||||||
Subsequent Event | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Declaration date | Oct. 25, 2019 | ||||||||||||||
Cash distributions declared per limited partner common unit | $ 0.6775 | ||||||||||||||
Distribution date | Nov. 14, 2019 | ||||||||||||||
Date of record | Nov. 4, 2019 | ||||||||||||||
Series A Preferred Stock [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Distributions declared (including IDRs) | 2,011 | ||||||||||||||
Series A Preferred Stock [Member] | Series B Preferred Stock [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Distributions declared (including IDRs) | [1] | 10 | 0 | 31 | 0 | ||||||||||
Series A Preferred Stock [Member] | Preferred Class B [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Cash distributions declared per limited partner common unit | $ 68.75 | ||||||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | $ 21 | (10) | (21) | ||||||||||||
Limited Partners Common Units | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Distributions declared (including IDRs) | [1] | $ 704 | [2] | $ 507 | 1,919 | [2] | $ 1,471 | ||||||||
Cash distributions declared per limited partner common unit | $ 0.6775 | $ 0.6675 | $ 0.6575 | $ 0.6375 | $ 0.6275 | $ 0.6175 | |||||||||
Limited Partners Common Units | Subsequent Event | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Distributions declared (including IDRs) | $ 704 | ||||||||||||||
MPC | Limited Partners Common Units | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Contributions from: | $ 292 | ||||||||||||||
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 0 | $ 0 | $ 0 | ||||||||||||
MPC | ANDX LP [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Contributions from: | $ 12.5 | $ 25 | |||||||||||||
MPLX LP | Series B Preferred Stock [Member] | |||||||||||||||
Incentive Distribution Made to Managing Member or General Partner [Line Items] | |||||||||||||||
Preferred Units, Outstanding | 600,000 | ||||||||||||||
[1] | See Note 7 for distribution information. | ||||||||||||||
[2] | The three and nine months ended September 30, 2019 amounts are net of $12.5 million and $25 million of quarterly waived distributions with respect to units held by MPC and its affiliates. Three Months Ended September 30, 2019 (In millions, except per unit data) Limited Partners’ Common Units Series A Preferred Units Series B Preferred Units Total Basic and diluted net income attributable to MPLX LP per unit Net income attributable to MPLX LP: Distributions declared $ 704 $ 20 $ 10 $ 734 Undistributed net loss attributable to MPLX LP (105 ) — — (105 ) Net income attributable to MPLX LP (1) $ 599 $ 20 $ 10 $ 629 Weighted average units outstanding: Basic (2) 974 31 — 1,005 Diluted (2) 975 31 — 1,006 Net income attributable to MPLX LP per limited partner unit: Basic $ 0.61 Diluted $ 0.61 |
Series A Preferred Units (Narra
Series A Preferred Units (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | Oct. 25, 2019 | Sep. 20, 2019 | May 13, 2016 | Sep. 30, 2019 |
Series A Convertible Preferred Units | ||||
Redeemable Noncontrolling Interest [Line Items] | ||||
Issuance of preferred units | 30.8 | |||
Dividend rate, percentage | 6.50% | |||
Price per share | $ 32.50 | |||
Issuance of redeemable preferred units | $ 984 | |||
Dividend rate, per-dollar-amount | $ 0.528125 | |||
Description | The holders may convert their Series A preferred units into common units at any time, in full or in part, subject to minimum conversion amounts and conditions. After the fourth anniversary of the issuance date, MPLX may convert the Series A preferred units into common units at any time, in whole or in part, subject to certain minimum conversion amounts and conditions, if the closing price of MPLX LP common units is greater than $48.75 for the 20-day trading period immediately preceding the conversion notice date. The conversion rate for the Series A preferred units shall be the quotient of (a) the sum of (i) $32.50, plus (ii) any unpaid cash distributions on the applicable preferred unit, divided by (b) $32.50, subject to adjustment for unit distributions, unit splits and similar transactions. The holders of the Series A preferred units are entitled to vote on an as-converted basis with the common unitholders and have certain other class voting rights with respect to any amendment to the MPLX partnership agreement that would adversely affect any rights, preferences or privileges of the preferred units. In addition, upon certain events involving a change of control, the holders of preferred units may elect, among other potential elections, to convert their Series A preferred units to common units at the then change of control conversion rate. | |||
Partners' Capital Account, Units, Converted | 1.2 | |||
Partners' Capital Account, Units | 29.6 | |||
Subsequent Event | ||||
Redeemable Noncontrolling Interest [Line Items] | ||||
Distribution Made to Limited Partner, Declaration Date | Oct. 25, 2019 | |||
Distribution Made to Limited Partner, Distributions Declared, Per Unit | $ 0.6775 |
Series A Preferred Units (Rollf
Series A Preferred Units (Rollforward of Redeemable Preferred Units) (Details) - USD ($) $ in Millions | 9 Months Ended | |
Sep. 30, 2019 | Sep. 30, 2018 | |
Redeemable Noncontrolling Interest [Line Items] | ||
Balance at December 31, 2018 | $ 1,004 | |
Distributions to unitholders and general partner | (1,731) | $ (1,312) |
Balance at September 30, 2019 | 968 | |
Series A Convertible Preferred Units | ||
Redeemable Noncontrolling Interest [Line Items] | ||
Balance at December 31, 2018 | 1,004 | |
Net income allocated | 61 | |
Distributions to unitholders and general partner | (61) | |
Balance at September 30, 2019 | 968 | |
Convertible Preferred Stock Converted to Other Securities | $ (36) |
Segment Information (Details)
Segment Information (Details) | 9 Months Ended |
Sep. 30, 2019 | |
Segment Reporting [Abstract] | |
Number of reportable segments | 2 |
Segment Information - Segment A
Segment Information - Segment Adjusted EBITDA (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||||||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | |||||
Segment Reporting Information [Line Items] | |||||||||
Equity method investments | $ 5,182 | $ 5,182 | $ 4,901 | ||||||
Depreciation and amortization | [1] | 302 | $ 201 | 916 | $ 565 | ||||
Total revenues from contracts with customers | 1,760 | 1,341 | 5,185 | 3,679 | |||||
Rental income | 99 | 89 | 291 | 252 | |||||
Income from equity method investments | 95 | 64 | 255 | [2],[3] | 175 | [2],[3] | |||
Other income | 2 | 3 | 6 | 8 | |||||
Total segment revenues and other income | 2,280 | 1,712 | 6,725 | 4,710 | |||||
L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Depreciation and amortization | (113) | (62) | (373) | (171) | |||||
Total revenues from contracts with customers | 998 | 607 | 2,844 | 1,692 | |||||
G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Depreciation and amortization | (189) | (139) | (543) | (394) | |||||
Total revenues from contracts with customers | 762 | 734 | 2,341 | 1,987 | |||||
Operating Segments | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Adjusted EBITDA | 1,165 | 937 | 3,015 | 2,564 | |||||
Operating Segments | L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Equity method investments | 1,672 | 1,672 | 1,518 | ||||||
Rental income | 304 | 191 | 935 | 526 | |||||
Income from equity method investments | 60 | 43 | 159 | 123 | |||||
Other income | 17 | 12 | 45 | 36 | |||||
Total segment revenues and other income | [4] | 1,379 | 853 | 3,983 | 2,377 | ||||
Adjusted EBITDA | [5] | 766 | 547 | 1,895 | 1,510 | ||||
Capital Expenditure | 57 | 31 | 128 | 78 | |||||
Growth Capital Expenditures | 216 | 78 | 618 | 325 | |||||
Operating Segments | G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Equity method investments | 3,510 | 3,510 | $ 3,383 | ||||||
Rental income | 88 | 88 | 260 | 251 | |||||
Income from equity method investments | 35 | 21 | 96 | 52 | |||||
Other income | 16 | 17 | 45 | 45 | |||||
Total segment revenues and other income | [4] | 901 | 859 | 2,742 | 2,333 | ||||
Adjusted EBITDA | [5] | 399 | 390 | 1,120 | 1,054 | ||||
Capital Expenditure | 18 | 9 | 46 | 20 | |||||
Growth Capital Expenditures | 302 | 380 | 861 | 1,057 | |||||
Segment Reconciling Items [Member] | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Adjusted EBITDA attributable to Predecessor | 108 | [6] | 0 | 770 | [6] | 0 | |||
Service [Member] | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 632 | 456 | 1,865 | 1,248 | |||||
Service [Member] | L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 95 | 34 | 260 | 94 | |||||
Service [Member] | G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 537 | 422 | 1,605 | 1,154 | |||||
Service [Member] | Operating Segments | L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 976 | 602 | 2,787 | 1,682 | |||||
Service [Member] | Operating Segments | G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 555 | 422 | 1,627 | 1,154 | |||||
Product [Member] | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 171 | 239 | 576 | 652 | |||||
Product [Member] | Operating Segments | L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 22 | 5 | 57 | 10 | |||||
Product [Member] | Operating Segments | G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total revenues from contracts with customers | 207 | 311 | 714 | 831 | |||||
Third Party [Member] | L&S | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total segment revenues and other income | 182 | 82 | 498 | 227 | |||||
Third Party [Member] | G&P | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Total segment revenues and other income | $ 843 | $ 828 | $ 2,581 | $ 2,262 | |||||
[1] | Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 | ||||||||
[2] | Includes the impact of any basis differential amortization or accretion. | ||||||||
[3] | The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. | ||||||||
[4] | Within the total segment revenues and other income amounts presented above, third party revenues for the L&S segment were $182 million and $498 million for the three and nine months ended September 30, 2019 , respectively, and $82 million and $227 million for the three and nine months ended September 30, 2018 , respectively. Third party revenues for the G&P segment were $843 million and $2,581 million for the three and nine months ended September 30, 2019 , respectively, and $828 million and $2,262 million for the three and nine months ended September 30, 2018 , respectively. | ||||||||
[5] | ee below for the reconciliation from Segment Adjusted EBITDA to net income. | ||||||||
[6] | The adjusted EBITDA adjustments related to Predecessor are excluded from adjusted EBITDA attributable to MPLX LP prior to the Merger. |
Segment Information - Assets by
Segment Information - Assets by Segment (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 | |
Segment Reporting, Other Significant Reconciling Item [Line Items] | |||
Cash and cash equivalents | $ 41 | $ 77 | |
Assets | 41,281 | 39,325 | |
Equity method investments | 5,182 | 4,901 | |
L&S | Operating Segments | |||
Segment Reporting, Other Significant Reconciling Item [Line Items] | |||
Assets | [1] | 20,579 | 19,963 |
Equity method investments | 1,672 | 1,518 | |
G&P | Operating Segments | |||
Segment Reporting, Other Significant Reconciling Item [Line Items] | |||
Assets | [1] | 20,661 | 19,285 |
Equity method investments | $ 3,510 | $ 3,383 | |
[1] | Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 |
Segment Information - Reconcili
Segment Information - Reconciliation to Net Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Depreciation and amortization | [1] | $ (302) | $ (201) | $ (916) | $ (565) | ||
Income Tax Expense (Benefit) | (4) | (3) | (2) | (8) | |||
Amortization of Debt Issuance Costs | (29) | (45) | |||||
Share-based Payment Arrangement, Expense | (5) | (6) | (17) | (15) | |||
Interest and Other Financial Costs | (223) | (139) | (657) | (389) | |||
Income from equity method investments | 95 | 64 | 255 | [2],[3] | 175 | [2],[3] | |
Proceeds from Equity Method Investment, Distribution, Return of Capital | (379) | (279) | |||||
Acquisition Costs, Period Cost | (9) | 0 | (14) | (3) | |||
Other Cost and Expense, Operating | 1 | 0 | 1 | 0 | |||
Net income | 689 | 516 | 2,035 | 1,395 | |||
Operating Segments | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Adjusted EBITDA | 1,165 | 937 | 3,015 | 2,564 | |||
Amortization of Debt Issuance Costs | (10) | (14) | (29) | (45) | |||
Segment Reconciling Items [Member] | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Proceeds from Equity Method Investment, Distribution, Return of Capital | (145) | (112) | (399) | (314) | |||
Adjusted EBITDA attributable to noncontrolling interests | 9 | 7 | 23 | 13 | |||
L&S | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Depreciation and amortization | 113 | 62 | 373 | 171 | |||
L&S | Operating Segments | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Adjusted EBITDA | [4] | 766 | 547 | 1,895 | 1,510 | ||
Income from equity method investments | 60 | 43 | 159 | 123 | |||
G&P | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Depreciation and amortization | 189 | 139 | 543 | 394 | |||
G&P | Operating Segments | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Adjusted EBITDA | [4] | 399 | 390 | 1,120 | 1,054 | ||
Income from equity method investments | 35 | 21 | 96 | 52 | |||
Not Designated as Hedging Instrument [Member] | |||||||
Segment Reporting, Revenue Reconciling Item [Line Items] | |||||||
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | [5] | $ 11 | $ (17) | $ 7 | $ (18) | ||
[1] | Depreciation and amortization attributable to L&S was $113 million and $373 million for the three and nine months ended September 30, 2019 , respectively, and $62 million and $171 million for the three and nine months ended September 30, 2018 , respectively. Depreciation and amortization attributable to G&P was $189 million and $543 million for the three and nine months ended September 30, 2019 , respectively, and $139 million and $394 million for the three and nine months ended September 30, 2018 | ||||||
[2] | Includes the impact of any basis differential amortization or accretion. | ||||||
[3] | The financial information for equity method investments for the nine months ended September 30, 2019 includes the financial information of equity method investments acquired as part of the Merger while the financial information for the nine months ended September 30, 2018 does not. See Note 3 for additional details. | ||||||
[4] | ee below for the reconciliation from Segment Adjusted EBITDA to net income. | ||||||
[5] | MPLX makes a distinction between realized and unrealized gains and losses on derivatives. During the period when a derivative contract is outstanding, changes in the fair value of the derivative are recorded as an unrealized gain or loss. When a derivative contract matures or is settled, the previously recorded unrealized gain or loss is reversed and the realized gain or loss of the contract is recorded. |
Inventories (Summary of Invento
Inventories (Summary of Inventories) (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Inventory Disclosure [Abstract] | ||
NGLs | $ 4 | $ 9 |
Line fill | 8 | 9 |
Spare parts, materials and supplies | 92 | 80 |
Total inventories | $ 104 | $ 98 |
Property, Plant and Equipment_2
Property, Plant and Equipment (Summary of Property, Plant and Equipment) (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | $ 26,328 | $ 25,213 |
Less accumulated depreciation | 4,436 | 3,688 |
Property, plant and equipment, net | 21,892 | 21,525 |
Natural gas gathering and NGL transportation pipelines and facilities | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 6,909 | 6,349 |
Processing, fractionation and storage facilities | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 6,113 | 6,045 |
Pipelines and related assets | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 5,058 | 5,111 |
Barges and towing vessels | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 675 | 621 |
Terminals and related assets | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 2,422 | 2,757 |
Refineries and related assets | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 1,398 | 1,447 |
Land, building, office equipment and other | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | 2,324 | 1,562 |
Construction-in-progress | ||
Property, Plant and Equipment [Line Items] | ||
Property, plant and equipment, gross | $ 1,429 | $ 1,321 |
Fair Value Measurements - Recur
Fair Value Measurements - Recurring - Financial Instruments by Valuation Hierarchy (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative asset | $ 0 | $ 0 |
Derivative liability | 54 | 61 |
Embedded derivatives in commodity contracts | Fair Value, Inputs, Level 3 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Derivative asset | 0 | 0 |
Derivative liability | $ 54 | $ 61 |
Fair Value Measurments - Recurr
Fair Value Measurments - Recurring - Significant Unobservable Inputs in Level 3 Valuation (Details) - Fair Value, Inputs, Level 3 [Member] | 9 Months Ended |
Sep. 30, 2019USD ($) | |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | |
Embedded Derivative Renewal Term | 5 years |
Embedded derivatives in commodity contracts | |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | |
Fair Value Inputs Probability of Renewal | 93.00% |
Fair Value Inputs Probability of Renewal Second Term | 82.50% |
Minimum [Member] | Commodity contracts | |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | |
Fair Value Inputs Forward Commodity Price | $ 0.41 |
Maximum [Member] | Commodity contracts | |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | |
Fair Value Inputs Forward Commodity Price | $ 1.07 |
Fair Value Measurements - Rec_2
Fair Value Measurements - Recurring - Changes in Level 3 Measurements (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||
Commodity Derivative Contracts (net) | |||||
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | |||||
Fair value at beginning of period | $ 0 | $ (2) | $ 0 | $ (2) | |
Total gains (losses) (realized and unrealized) included in earnings | [1] | 0 | (1) | 0 | (2) |
Settlements | 0 | 1 | 0 | 2 | |
Fair value at end of period | 0 | (2) | 0 | (2) | |
The amount of total gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to liabilities still held at end of period | 0 | (2) | 0 | (1) | |
Embedded Derivatives in Commodity Contracts (net) | |||||
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | |||||
Fair value at beginning of period | (65) | (66) | (61) | (64) | |
Total gains (losses) (realized and unrealized) included in earnings | [1] | 9 | (19) | 2 | (27) |
Settlements | 2 | 3 | 5 | 9 | |
Fair value at end of period | (54) | (82) | (54) | (82) | |
The amount of total gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to liabilities still held at end of period | $ 9 | $ (19) | $ 5 | $ (21) | |
[1] | Gains and losses on commodity derivative contracts classified as Level 3 are recorded in “Product sales” on the Consolidated Statements of Income. Gains and losses on derivatives embedded in commodity contracts are recorded in “Purchased product costs” and “Cost of revenues” on the Consolidated Statements of Income. |
Fair Value Measurements - Repor
Fair Value Measurements - Reported (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Reported Value Measurement [Member] | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Long-term debt | $ 19,789 | $ 18,511 |
SMR liability | 82 | 86 |
Estimate of Fair Value Measurement [Member] | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Long-term debt | 21,290 | 18,070 |
SMR liability | $ 93 | $ 92 |
Derivative Financial Instrume_3
Derivative Financial Instruments - Embedded Derivatives in Commodity Contracts (Details) - Natural Gas [Member] - Embedded derivatives in commodity contracts $ in Millions | 9 Months Ended | |
Sep. 30, 2019USD ($) | Dec. 31, 2018USD ($) | |
Derivative [Line Items] | ||
Number of Renewals | 2 | |
Embedded Derivative Renewal Term | 5 years | |
Embedded Derivative Fair Value of Embedded Derivative Liability Including Inception Value Allocable to Host Contract | $ 54 | $ 61 |
Derivative Financial Instrume_4
Derivative Financial Instruments - Derivatives Balance Sheet Location (Details) - Not Designated as Hedging Instrument [Member] - Commodity contracts - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 | |
Derivatives, Fair Value [Line Items] | |||
Derivative Asset, Fair Value, Gross Asset | [1] | $ 0 | $ 0 |
Derivative Liability, Fair Value, Gross Liability | [1] | 54 | 61 |
Other current assets [Member] | |||
Derivatives, Fair Value [Line Items] | |||
Derivative Asset, Fair Value, Gross Asset | [1] | 0 | 0 |
Other Noncurrent Liabilities [Member] | |||
Derivatives, Fair Value [Line Items] | |||
Derivative Liability, Fair Value, Gross Liability | [1] | 5 | 7 |
Other noncurrent assets [Member] | |||
Derivatives, Fair Value [Line Items] | |||
Derivative Asset, Fair Value, Gross Asset | [1] | 0 | 0 |
Other Noncurrent Liabilities [Member] | |||
Derivatives, Fair Value [Line Items] | |||
Derivative Liability, Fair Value, Gross Liability | [1] | $ 49 | $ 54 |
[1] | Includes embedded derivatives in commodity contracts as discussed above. |
Derivatives Financial Instrumen
Derivatives Financial Instruments - Derivative Income Statement Location (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||
Derivative [Line Items] | |||||
Total gain (loss) | $ 9 | $ (22) | $ 2 | $ (30) | |
Product sales | |||||
Derivative [Line Items] | |||||
Realized gain (loss) | 0 | (1) | 0 | (2) | |
Total gain (loss) | 0 | (2) | 0 | (2) | |
Purchased product costs | |||||
Derivative [Line Items] | |||||
Realized gain (loss) | (2) | (4) | (5) | (10) | |
Total gain (loss) | 9 | (20) | 2 | (28) | |
Cost of revenues | |||||
Derivative [Line Items] | |||||
Realized gain (loss) | 0 | 0 | 0 | 0 | |
Total gain (loss) | 0 | 0 | 0 | 0 | |
Not Designated as Hedging Instrument [Member] | |||||
Derivative [Line Items] | |||||
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | [1] | 11 | (17) | 7 | (18) |
Not Designated as Hedging Instrument [Member] | Product sales | |||||
Derivative [Line Items] | |||||
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | 0 | (1) | 0 | 0 | |
Not Designated as Hedging Instrument [Member] | Purchased product costs | |||||
Derivative [Line Items] | |||||
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | 11 | (16) | 7 | (18) | |
Not Designated as Hedging Instrument [Member] | Cost of revenues | |||||
Derivative [Line Items] | |||||
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | $ 0 | $ 0 | $ 0 | $ 0 | |
[1] | MPLX makes a distinction between realized and unrealized gains and losses on derivatives. During the period when a derivative contract is outstanding, changes in the fair value of the derivative are recorded as an unrealized gain or loss. When a derivative contract matures or is settled, the previously recorded unrealized gain or loss is reversed and the realized gain or loss of the contract is recorded. |
Debt - Summary of Outstanding B
Debt - Summary of Outstanding Borrowings (Detail) - USD ($) $ in Millions | Sep. 30, 2019 | Sep. 23, 2019 | Sep. 09, 2019 | Jul. 30, 2019 | Dec. 31, 2018 | Nov. 15, 2018 | Feb. 08, 2018 | |
Debt Instrument [Line Items] | ||||||||
Financing lease obligations(1) | $ 20 | |||||||
Total | 20,120 | $ 18,866 | ||||||
Unamortized debt issuance costs | (109) | (97) | ||||||
Unamortized discount/premium | (311) | (334) | ||||||
Amounts due within one year | (510) | (513) | ||||||
Total long-term debt due after one year | 19,190 | 17,922 | ||||||
Senior Notes [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | $ 2,000 | |||||||
Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | $ 3,060 | $ 2,250 | $ 5,500 | |||||
Senior Notes [Member] | ANDX LP [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 690 | 3,060 | $ 3,750 | 3,750 | ||||
Finance Lease [Member] | Marathon Pipe Line LLC [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Financing lease obligations(1) | [1] | 20 | 21 | |||||
Floating Rate Senior Notes Due September 2021 [Member] | Senior Notes [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,000 | 1,000 | 0 | |||||
Floating Rate Senior Notes Due September 2022 [Member] | Senior Notes [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,000 | $ 1,000 | 0 | |||||
Senior Notes Due October 2022 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 266 | 266 | 0 | |||||
Senior Notes Due December 2022 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 486 | 486 | 0 | |||||
3.375% senior notes due March 2023 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 500 | 500 | 500 | |||||
4.500% senior notes due July 2023 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 989 | 989 | ||||||
Senior Notes Due May 2024 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 381 | 381 | 0 | |||||
4.875% senior notes due December 2024 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,149 | 1,149 | ||||||
Senior Notes Due January 2025 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 708 | 708 | 0 | |||||
4.000% senior notes due February 2025 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 500 | 500 | ||||||
4.875% senior notes due June 2025 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,189 | 1,189 | ||||||
4.125% senior notes due March 2027 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,250 | 1,250 | ||||||
Senior Notes Due December 2027 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 732 | 732 | 0 | |||||
4.000% senior notes due March 2028 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,250 | 1,250 | 1,250 | |||||
Senior Notes Due February 2029 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 750 | 750 | 750 | |||||
4.500% senior notes due April 2038 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,750 | 1,750 | 1,750 | |||||
5.200% senior notes due March 2047 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,000 | 1,000 | ||||||
Senior Notes Due December 2047 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 487 | $ 487 | 0 | |||||
4.700% senior notes due April 2048 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,500 | 1,500 | 1,500 | |||||
Senior Notes Due February 2049 [Member] | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 1,500 | 1,500 | $ 1,500 | |||||
4.900% senior notes due April 2058 | Senior Notes [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 500 | 500 | $ 500 | |||||
MarkWest - 4.500% - 4.875% senior notes, due 2023-2025 | Senior Notes [Member] | MarkWest [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 23 | 23 | ||||||
MPLX Revolving Credit Facility due July 2024 [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Line of Credit | 0 | 0 | ||||||
MPLX Revolving Credit Facility due July 2024 [Member] | Line of Credit [Member] | MPLX LP | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Debt, Gross | 0 | |||||||
ANDX Bank Revolving Credit Facilities [Member] | Andeavor Logistics [Member] | ||||||||
Debt Instrument [Line Items] | ||||||||
Long-term Line of Credit | $ 0 | $ 1,245 | ||||||
[1] | See Note 19 for lease information. |
Debt Debt - Summary of Outstand
Debt Debt - Summary of Outstanding Borrowings - Interest Rates and Table Due Dates (Details) | 9 Months Ended | |||
Sep. 30, 2019 | Sep. 23, 2019 | Nov. 15, 2018 | Feb. 08, 2018 | |
MarkWest [Member] | Senior Notes [Member] | 4.500% senior notes due July 2023 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.50% | |||
Debt Instrument, Maturity Date | Jul. 15, 2023 | |||
MarkWest [Member] | Senior Notes [Member] | 4.875% senior notes due December 2024 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.875% | |||
Debt Instrument, Maturity Date | Dec. 1, 2024 | |||
MarkWest [Member] | Senior Notes [Member] | 4.875% senior notes due June 2025 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.875% | |||
Debt Instrument, Maturity Date | Jun. 1, 2025 | |||
MarkWest [Member] | Senior Notes [Member] | Senior Notes Due October 2019 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | |||
Debt Instrument, Maturity Date | Oct. 15, 2019 | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due October 2022 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due December 2022 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 3.50% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due May 2024 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 6.375% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due January 2025 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.25% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due December 2027 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.25% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due December 2047 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.20% | |||
ANDX LP [Member] | Senior Notes [Member] | Senior Notes Due October 2019 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | |||
ANDX LP [Member] | Finance Lease [Member] | ||||
Debt Instrument [Line Items] | ||||
Capital Lease Due Date Year | 2029 | |||
MPLX LP | Line of Credit [Member] | MPLX Revolving Credit Facility due July 2024 [Member] | ||||
Debt Instrument [Line Items] | ||||
Line of Credit Facility, Expiration Date | Jul. 30, 2024 | |||
MPLX LP | Senior Notes [Member] | Floating Rate Senior Notes Due September 2021 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Maturity Date | Sep. 9, 2021 | |||
MPLX LP | Senior Notes [Member] | Floating Rate Senior Notes Due September 2022 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Maturity Date | Sep. 9, 2022 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due October 2022 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | |||
Debt Instrument, Maturity Date | Oct. 15, 2022 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due December 2022 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 3.50% | |||
Debt Instrument, Maturity Date | Dec. 1, 2022 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due March 2023 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 3.375% | 3.375% | ||
Debt Instrument, Maturity Date | Mar. 15, 2023 | |||
MPLX LP | Senior Notes [Member] | 4.500% senior notes due July 2023 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.50% | |||
Debt Instrument, Maturity Date | Jul. 15, 2023 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due May 2024 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 6.375% | |||
Debt Instrument, Maturity Date | May 1, 2024 | |||
MPLX LP | Senior Notes [Member] | 4.875% senior notes due December 2024 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.875% | |||
Debt Instrument, Maturity Date | Dec. 1, 2024 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due January 2025 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.25% | |||
Debt Instrument, Maturity Date | Jan. 15, 2025 | |||
MPLX LP | Senior Notes [Member] | 4.000% senior notes due February 2025 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.00% | |||
Debt Instrument, Maturity Date | Feb. 15, 2025 | |||
MPLX LP | Senior Notes [Member] | 4.875% senior notes due June 2025 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.875% | |||
Debt Instrument, Maturity Date | Jun. 1, 2025 | |||
MPLX LP | Senior Notes [Member] | 4.125% senior notes due March 2027 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.125% | |||
Debt Instrument, Maturity Date | Mar. 1, 2027 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due December 2027 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.25% | |||
Debt Instrument, Maturity Date | Dec. 1, 2027 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due March 2028 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.00% | 4.00% | ||
Debt Instrument, Maturity Date | Mar. 15, 2028 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due February 2029 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.80% | 4.80% | ||
Debt Instrument, Maturity Date | Feb. 15, 2029 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due April 2038 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.50% | 4.50% | ||
Debt Instrument, Maturity Date | Apr. 15, 2038 | |||
MPLX LP | Senior Notes [Member] | 5.200% senior notes due March 2047 | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.20% | |||
Debt Instrument, Maturity Date | Mar. 1, 2047 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due December 2047 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.20% | |||
Debt Instrument, Maturity Date | Dec. 1, 2047 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due April 2048 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.70% | 4.70% | ||
Debt Instrument, Maturity Date | Apr. 15, 2048 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due February 2049 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | 5.50% | ||
Debt Instrument, Maturity Date | Feb. 15, 2049 | |||
MPLX LP | Senior Notes [Member] | Senior Notes Due April 2058 [Member] | ||||
Debt Instrument [Line Items] | ||||
Debt Instrument, Interest Rate, Stated Percentage | 4.90% | 4.90% | ||
Debt Instrument, Maturity Date | Apr. 15, 2058 | |||
Marathon Pipe Line LLC [Member] | Finance Lease [Member] | ||||
Debt Instrument [Line Items] | ||||
Capital Lease Due Date Year | 2020 |
Debt - Additional Information (
Debt - Additional Information (Detail) $ in Thousands | Oct. 15, 2019USD ($) | Sep. 26, 2019USD ($) | Sep. 09, 2019USD ($) | Feb. 08, 2018USD ($) | Jul. 21, 2017 | Sep. 30, 2019USD ($) | Sep. 30, 2018USD ($) | Dec. 31, 2018USD ($) | Sep. 23, 2019USD ($) | Jul. 30, 2019USD ($) | Jul. 29, 2019USD ($) | Dec. 10, 2018USD ($) | Nov. 15, 2018USD ($) | Feb. 19, 2017 |
Debt Instrument [Line Items] | ||||||||||||||
Repayments of Long-term Debt | $ 7,423,000 | $ 4,781,000 | ||||||||||||
Extinguishment of Debt, Gain (Loss), Net of Tax | $ (46,000) | |||||||||||||
MPLX Revolving Credit Facility due July 2024 [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Line of Credit Facility, Current Borrowing Capacity | $ 3,500,000 | |||||||||||||
Long-term Line of Credit | 0 | 0 | ||||||||||||
MPLX Revolving Credit Facility due July 2024 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from Lines of Credit | $ 5,310,000 | |||||||||||||
Debt Instrument, Interest Rate, Effective Percentage | 3.548% | |||||||||||||
Repayments of Long-term Lines of Credit | $ 5,310,000 | |||||||||||||
Letters of Credit Outstanding | 3,000 | |||||||||||||
Line of Credit Facility, Remaining Borrowing Capacity | $ 3,497,000 | |||||||||||||
Line of Credit Facility, Remaining Borrowing Capacity, Percentage | 99.90% | |||||||||||||
Bank revolving credit facility due 2022 | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Term | 5 years | |||||||||||||
MPLX 364-Day Term Loan [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Repayments of Short-term Debt | $ 4,100,000 | |||||||||||||
ANDX Bank Revolving Credit Facilities [Member] | Andeavor Logistics [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Proceeds from Lines of Credit | $ 864,000 | |||||||||||||
Debt Instrument, Interest Rate, Effective Percentage | 4.129% | |||||||||||||
Repayments of Long-term Lines of Credit | $ 2,100,000 | |||||||||||||
Line of Credit Facility, Current Borrowing Capacity | $ 2,100,000 | |||||||||||||
Long-term Line of Credit | $ 0 | 1,245,000 | ||||||||||||
MPLX Term Loan [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Line of Credit Facility, Maximum Borrowing Capacity | $ 1,000,000 | |||||||||||||
Debt Instrument, Description of Variable Rate Basis | (i) the Adjusted LIBO Rate (as defined in the Term Loan Agreement) plus a margin ranging from 75.0 basis points to 100.0 basis points per annum, depending on MPLX’s credit ratings, or (ii) the Alternate Base Rate (as defined in the Term Loan Agreement). | |||||||||||||
Long-term Debt, Maturity Date | Sep. 26, 2021 | |||||||||||||
Long-term Line of Credit | $ 500,000 | 0 | ||||||||||||
Number Of Prior Quarterly Reporting Periods Covenant | 4 | |||||||||||||
MPLX Term Loan [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Effective Percentage | 2.795% | |||||||||||||
Line of Credit [Member] | MPLX Revolving Credit Facility due July 2024 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | 0 | |||||||||||||
Senior Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 2,000,000 | |||||||||||||
Percent of Par | 100.00% | |||||||||||||
Senior Notes [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | 5,500,000 | $ 3,060,000 | $ 2,250,000 | |||||||||||
Senior Notes [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 690,000 | 3,750,000 | 3,060,000 | $ 3,750,000 | ||||||||||
Senior Notes [Member] | Senior Notes Due October 2019 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 500,000 | |||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | |||||||||||||
Senior Notes [Member] | Senior Notes Due October 2019 [Member] | MarkWest [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2022 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 486,000 | 0 | $ 486,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 3.50% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2022 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 3.50% | |||||||||||||
Senior Notes [Member] | Senior Notes Due October 2022 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 266,000 | 0 | $ 266,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due October 2022 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 6.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due May 2024 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 381,000 | 0 | $ 381,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 6.375% | |||||||||||||
Senior Notes [Member] | Senior Notes Due May 2024 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 6.375% | |||||||||||||
Senior Notes [Member] | Senior Notes Due January 2025 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 708,000 | 0 | $ 708,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due January 2025 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2027 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 732,000 | 0 | $ 732,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2027 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.25% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2047 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 487,000 | 0 | $ 487,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.20% | |||||||||||||
Senior Notes [Member] | Senior Notes Due December 2047 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.20% | |||||||||||||
Senior Notes [Member] | Senior Notes Due February 2023 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 750,000 | |||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | |||||||||||||
Percent of Par | 101.833% | |||||||||||||
Senior Notes [Member] | Senior Notes Due February 2023 [Member] | MarkWest [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 40,000 | |||||||||||||
Senior Notes [Member] | Senior Notes Due February 2029 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 750,000 | 750,000 | $ 750,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.80% | 4.80% | ||||||||||||
Percent of Par | 99.432% | |||||||||||||
Senior Notes [Member] | Senior Notes Due February 2049 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,500,000 | 1,500,000 | $ 1,500,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 5.50% | 5.50% | ||||||||||||
Percent of Par | 98.031% | |||||||||||||
Senior Notes [Member] | Senior Notes Due March 2023 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 500,000 | $ 500,000 | 500,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 3.375% | 3.375% | ||||||||||||
Percent of Par | 99.931% | |||||||||||||
Senior Notes [Member] | Senior Notes Due March 2028 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,250,000 | $ 1,250,000 | 1,250,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.00% | 4.00% | ||||||||||||
Percent of Par | 99.551% | |||||||||||||
Senior Notes [Member] | Senior Notes Due April 2038 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,750,000 | $ 1,750,000 | 1,750,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.50% | 4.50% | ||||||||||||
Percent of Par | 98.811% | |||||||||||||
Senior Notes [Member] | Senior Notes Due April 2048 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,500,000 | $ 1,500,000 | 1,500,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.70% | 4.70% | ||||||||||||
Percent of Par | 99.348% | |||||||||||||
Senior Notes [Member] | Senior Notes Due April 2058 [Member] | MPLX LP | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 500,000 | $ 500,000 | 500,000 | |||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 4.90% | 4.90% | ||||||||||||
Percent of Par | 99.289% | |||||||||||||
Senior Notes [Member] | Floating Rate Senior Notes Due September 2021 [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,000,000 | $ 1,000,000 | 0 | |||||||||||
Debt Instrument, Description of Variable Rate Basis | LIBOR plus 0.9 percent per annum | |||||||||||||
Senior Notes [Member] | Floating Rate Senior Notes Due September 2022 [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term Debt, Gross | $ 1,000,000 | $ 1,000,000 | 0 | |||||||||||
Debt Instrument, Description of Variable Rate Basis | LIBOR plus 1.1 percent per annum | |||||||||||||
Debt Premium [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Extinguishment of Debt, Gain (Loss), Net of Tax | $ (14,000) | |||||||||||||
Minimum [Member] | Senior Notes [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 3.50% | |||||||||||||
Maximum [Member] | MPLX Term Loan [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Covenant Ratio Debt To Ebitda | 5 | |||||||||||||
Covenant Ratio Debt To Ebitda Post Acquisition | 5.5 | |||||||||||||
Maximum [Member] | Senior Notes [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Debt Instrument, Interest Rate, Stated Percentage | 6.375% | |||||||||||||
Subsequent Event | Senior Notes [Member] | Senior Notes Due October 2019 [Member] | ANDX LP [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Repayments of Long-term Debt | $ 500,000 | |||||||||||||
Interest Expense, Long-term Debt | $ 13,750 |
Revenue Disaggregation of Reven
Revenue Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | |||
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | ||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | $ 1,760 | $ 1,341 | $ 5,185 | $ 3,679 | |
Other income | 2 | 3 | 6 | 8 | |
Total segment revenues and other income | 2,280 | 1,712 | 6,725 | 4,710 | |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | 9 | (22) | 2 | (30) | |
L&S | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 998 | 607 | 2,844 | 1,692 | |
G&P | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 762 | 734 | 2,341 | 1,987 | |
Other Income [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Other income | [1] | 520 | 371 | 1,540 | 1,031 |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | 0 | (1) | 0 | (2) | |
Service [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 632 | 456 | 1,865 | 1,248 | |
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 899 | 568 | 2,549 | 1,588 | |
Service [Member] | L&S | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 95 | 34 | 260 | 94 | |
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 881 | 568 | 2,527 | 1,588 | |
Service [Member] | G&P | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 537 | 422 | 1,605 | 1,154 | |
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 18 | 0 | 22 | 0 | |
Service, Other [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 26 | 59 | 86 | 154 | |
Service, Other [Member] | L&S | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 0 | 0 | 0 | 0 | |
Service, Other [Member] | G&P | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 26 | 59 | 86 | 154 | |
Product [Member] | |||||
Disaggregation of Revenue [Line Items] | |||||
Total revenues from contracts with customers | 171 | 239 | 576 | 652 | |
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 32 | 18 | 109 | 35 | |
Revenue from Contract with Customer, excluding Assessed Tax and Non-ASC 606 Revenue | [2] | 171 | 240 | 576 | 654 |
Product [Member] | L&S | |||||
Disaggregation of Revenue [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 8 | 2 | 17 | 5 | |
Revenue from Contract with Customer, excluding Assessed Tax and Non-ASC 606 Revenue | 14 | 3 | 40 | 5 | |
Product [Member] | G&P | |||||
Disaggregation of Revenue [Line Items] | |||||
Revenue from Contract with Customer, Excluding Assessed Tax, Related Parties | 24 | 16 | 92 | 30 | |
Revenue from Contract with Customer, excluding Assessed Tax and Non-ASC 606 Revenue | [2] | $ 157 | $ 237 | $ 536 | $ 649 |
[1] | Non-ASC 606 Revenue includes rental income, income from equity method investments, derivative gains and losses, mark-to-market adjustments, and other income. | ||||
[2] | G&P “Product sales” for the three and nine months ended September 30, 2018 includes approximately $1 million and $2 million of revenue related to derivative gains and losses and mark-to-market adjustments, respectively. There were no adjustments for the three and nine months ended September 30, 2019 . |
Revenue Contract Balances (Deta
Revenue Contract Balances (Details) $ in Millions | 9 Months Ended | |
Sep. 30, 2019USD ($) | ||
Long-term deferred revenue, beginning balance | $ 132 | |
Long-term deferred revenue, ending balance | 189 | |
Liability, change in timeframe, performance obligation satisfied, revenue recognized | 0 | |
ASC 606 | ||
Contract assets, beginning balance | 36 | [1] |
Contract assets, additions/(deletions) | (6) | |
Contract assets, revenue recognized | (2) | [2] |
Contract assets, ending balance | 28 | |
Deferred revenue, beginning balance | 13 | [1] |
Deferred revenue, additions/(deletions) | 11 | |
Deferred revenue, revenue recognized | (4) | [2] |
Deferred revenue, ending balance | 20 | |
Deferred revenue - related parties, beginning balance | 65 | [1] |
Deferred revenue - related party, additions/(deletions) | 34 | |
Deferred revenue - related parties, revenue recognized | (50) | [2] |
Deferred revenue - related parties, ending balance | 49 | |
Long-term deferred revenue, beginning balance | 56 | [1] |
Long-term deferred revenue, additions/(deletions) | 26 | |
Long-term deferred revenue, revenue recognized | 0 | [2] |
Long-term deferred revenue, ending balance | 82 | |
Long-term deferred revenue - related parties, beginning balance | 52 | [1] |
Long-term deferred revenue - related party, additions/(deletions) | 5 | |
Long-term deferred revenue - related parties, revenue recognized | 0 | [2] |
Long-term deferred revenue - related parties, ending balance | $ 57 | |
[1] | Balance represents ASC 606 portion of each respective line item. | |
[2] | No significant revenue was recognized related to past performance obligations in the current period. |
Revenue Remaining Performance O
Revenue Remaining Performance Obligations (Details) $ in Millions | Sep. 30, 2019USD ($) | |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
Contract with customer, liability | $ 207 | |
Remaining performance obligation, expected timing of satisfaction, years | 25 years | |
2018 | $ 408 | |
2019 | 1,620 | |
2020 | 1,601 | |
2022 | 1,567 | |
2023 and thereafter | 6,581 | |
Total revenue on remaining performance obligations | $ 11,777 | [1],[2],[3] |
[1] | All fixed consideration from contracts with customers is included in the amounts presented above. Variable consideration that is constrained or not required to be estimated as it reflects our efforts to perform is excluded. | |
[2] | Arrangements deemed implicit leases are included in “Rental income” and are excluded from this table. | |
[3] | Only minimum volume commitments that are deemed fixed are included in the table above. MPLX has various minimum volume commitments in processing arrangements that vary based on the actual Btu content of the gas received. These amounts are deemed variable consideration and are excluded from the table above. |
Supplemental Cash Flow Inform_3
Supplemental Cash Flow Information - Change in Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017 | |
Supplemental Cash Flow Elements [Abstract] | |||||
Cash and cash equivalents | $ 41 | $ 77 | |||
Restricted cash | [1] | 0 | 8 | ||
Cash, cash equivalents and restricted cash | $ 41 | $ 85 | $ 39 | $ 9 | |
[1] | The restricted cash balance is included within “Other current assets” on the Consolidated Balance Sheets. |
Supplemental Cash Flow Inform_4
Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | |
Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | |
Net cash provided by operating activities included: | |||
Interest paid (net of amounts capitalized) | $ 648,000,000 | $ 293,000,000 | |
Income Taxes Paid, Net | 0 | 1,000,000 | |
Operating Lease, Payments | 62,000,000 | 0 | |
Finance Lease, Interest Payment on Liability | $ 0 | 1,000,000 | 0 |
Finance Lease, Principal Payments | 4,000,000 | 0 | |
Non-cash investing and financing activities: | |||
Net transfers of property, plant and equipment from materials and supplies inventories | 1,000,000 | 2,000,000 | |
Sales-type Lease, Selling Profit (Loss) | 21,000,000 | 0 | |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 13,000,000 | 0 | |
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | $ 4,000,000 | $ 0 |
Supplemental Cash Flow Inform_5
Supplemental Cash Flow Information - Summary of Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures (Detail) - USD ($) $ in Millions | 9 Months Ended | |
Sep. 30, 2019 | Sep. 30, 2018 | |
Supplemental Cash Flow Elements [Abstract] | ||
(Decrease)/increase in capital accruals | $ (67) | $ 90 |
Accumulated Other Comprehensi_3
Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 9 Months Ended | |||||
Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017 | ||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Accumulated other comprehensive loss | [1] | $ (15) | $ (16) | $ (16) | $ (14) | |
Other Comprehensive Income (Loss), Net of Tax | [2] | 1 | $ (2) | |||
Pension Plan [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Accumulated other comprehensive loss | [1] | (14) | (14) | (14) | (13) | |
Other Comprehensive Income (Loss), Net of Tax | [2] | 0 | (1) | |||
Other Postretirement Benefits Plan [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Accumulated other comprehensive loss | [1] | (1) | $ (2) | $ (2) | $ (1) | |
Other Comprehensive Income (Loss), Net of Tax | [2] | $ 1 | $ (1) | |||
[1] | These components of “Accumulated other comprehensive loss” are included in the computation of net periodic benefit cost by LOOP and Explorer and are therefore included on the Consolidated Statements of Income under the caption “Income/(loss) from equity method investments.” | |||||
[2] | Components of other comprehensive income/loss - remeasurements relate to actuarial gains and losses as well as amortization of prior service costs. MPLX records an adjustment to “Comprehensive income” in accordance with its ownership interest in LOOP and Explorer. |
Equity-Based Compensation Pla_2
Equity-Based Compensation Plan - Summary of Phantom Unit Award Activity (Details) - $ / shares | Jul. 30, 2019 | Sep. 30, 2019 |
Phantom Units | ||
Number of Units | ||
Outstanding at December 31, 2018 | 1,154,335 | |
Granted | 207,515 | |
Settled | 420,374 | |
Forfeited | 42,464 | |
Outstanding at September 30, 2019 | 1,107,545 | |
Weighted Average Fair Value | ||
Outstanding at December 31, 2018 | $ 34.34 | |
Granted | 32.96 | |
Settled | 33.76 | |
Forfeited | 33.53 | |
Outstanding at September 30, 2019 | $ 36.09 | |
ANDX LP [Member] | Phantom Units | ||
Number of Units | ||
Granted | 208,533 | |
Weighted Average Fair Value | ||
Granted | $ 43.64 | |
ANDX LP [Member] | Public | ||
Equity Transactions And Share Based Compensation [Line Items] | ||
Common Units Conversion Ratio - ANDX to MPLX | 1.135 |
Equity-Based Compensation Pla_3
Equity-Based Compensation Plan - Additional Information (Detail) - Officer - Performance Shares [Member] - MPLX LP 2012 Incentive Compensation Plan [Member] | 9 Months Ended |
Sep. 30, 2019 | |
Equity Transactions And Share Based Compensation [Line Items] | |
Percentage paid out in cash | 75.00% |
Share Based Compensation Arrangement By Share Based Payment Award Percentage Paid Out In Stock | 25.00% |
Equity-Based Compensation Pla_4
Equity-Based Compensation Plan - Summary of Performance Unit Award Activity (Detail) | 9 Months Ended |
Sep. 30, 2019$ / sharesshares | |
Performance Shares [Member] | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] | |
Outstanding at December 31, 2018 | 1,941,750 |
Granted | 987,994 |
Settled | 772,397 |
Forfeited | 0 |
Outstanding at September 30, 2019 | 2,157,347 |
Performance Units Market Condition [Member] | |
Equity Transactions And Share Based Compensation [Line Items] | |
Performance units grant date fair value (in USD per unit) | $ / shares | $ 0.68 |
Maximum [Member] | Performance Unit Performance Condition [Member] | |
Equity Transactions And Share Based Compensation [Line Items] | |
Performance units grant date fair value (in USD per unit) | $ / shares | $ 2 |
Leases Leases Narrative (Detail
Leases Leases Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | ||
Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | |
Lessor, Sales-type Lease, Assumptions and Judgments, Value of Underlying Asset, Amount | $ 29 | $ 29 | ||
Deferred Rent Receivables, Net | (3) | (3) | ||
Operating Lease, Lease Income | 63 | 196 | ||
Operating Leases of Lessor Contingent Rentals Received | 1 | |||
Sales-type Lease, Lease Receivable | $ 47 | 47 | ||
Sales-type Lease, Selling Profit (Loss) | $ 21 | $ 0 | ||
Minimum [Member] | ||||
Renewal Term Agreement | 1 year | |||
Term Of Agreements | 1 year | |||
Lessor, Operating Lease, Term of Contract | 1 year | 1 year | ||
Lessor, Operating Lease, Renewal Term | 0 years | 0 years | ||
Maximum [Member] | ||||
Renewal Term Agreement | 50 years | |||
Term Of Agreements | 60 years | |||
Lessor, Operating Lease, Term of Contract | 12 years | 12 years | ||
Lessor, Operating Lease, Renewal Term | 10 years | 10 years | ||
MPC | ||||
Operating Lease, Lease Income | $ 248 | $ 773 | ||
Sales-type Lease, Unguaranteed Residual Asset | $ 6 | $ 6 | $ 0 |
Leases Lessee Lease Costs (Deta
Leases Lessee Lease Costs (Details) - USD ($) | 3 Months Ended | 9 Months Ended | |
Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | |
Lessee, Lease, Description [Line Items] | |||
Operating Lease, Cost | $ 19,000,000 | $ 56,000,000 | |
Finance Lease, Right-of-Use Asset, Amortization | 1,000,000 | 4,000,000 | |
Finance Lease, Interest Expense | 0 | 1,000,000 | $ 0 |
Finance Lease Cost | 1,000,000 | 5,000,000 | |
Variable Lease, Cost | 3,000,000 | 7,000,000 | |
Short-term Lease, Cost | 20,000,000 | 56,000,000 | |
Lease, Cost | 43,000,000 | 124,000,000 | |
MPC | |||
Lessee, Lease, Description [Line Items] | |||
Operating Lease, Cost | 4,000,000 | 11,000,000 | |
Finance Lease, Right-of-Use Asset, Amortization | 0 | 0 | |
Finance Lease, Interest Expense | 0 | 0 | |
Finance Lease Cost | 0 | 0 | |
Variable Lease, Cost | 0 | 0 | |
Short-term Lease, Cost | 0 | 0 | |
Lease, Cost | $ 4,000,000 | $ 11,000,000 |
Leases Lessee Balance Sheet Lea
Leases Lessee Balance Sheet Lease Detail (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Lessee, Lease, Description [Line Items] | ||
Operating Lease, Right-of-Use Asset | $ 366 | $ 0 |
Operating Lease, Liability, Current | 61 | 0 |
Operating Lease, Liability, Noncurrent | 309 | 0 |
Operating Lease, Liability | $ 370 | |
Operating Lease, Weighted Average Remaining Lease Term | 8 years 10 months 9 days | |
Operating Lease, Weighted Average Discount Rate, Percent | 4.48% | |
Property, plant and equipment, gross | $ 26,328 | 25,213 |
Less accumulated depreciation | 4,436 | 3,688 |
Property, plant and equipment, net | 21,892 | 21,525 |
Other current liabilities | 656 | 645 |
Long-term debt | 19,190 | 17,922 |
Financing lease obligations(1) | $ 20 | |
Finance Lease, Weighted Average Remaining Lease Term | 10 years | |
Finance Lease, Weighted Average Discount Rate, Percent | 5.81% | |
MPC | ||
Lessee, Lease, Description [Line Items] | ||
Operating Lease, Right-of-Use Asset | $ 232 | 0 |
Operating Lease, Liability, Current | 1 | 0 |
Operating Lease, Liability, Noncurrent | 231 | $ 0 |
Operating Lease, Liability | $ 232 | |
Operating Lease, Weighted Average Remaining Lease Term | 47 years 5 months 8 days | |
Operating Lease, Weighted Average Discount Rate, Percent | 5.80% | |
Finance Lease [Member] | ||
Lessee, Lease, Description [Line Items] | ||
Property, plant and equipment, gross | $ 49 | |
Less accumulated depreciation | 21 | |
Property, plant and equipment, net | 28 | |
Other current liabilities | 9 | |
Long-term debt | $ 11 |
Leases Lessee Maturity Table (D
Leases Lessee Maturity Table (Details) - USD ($) $ in Millions | 9 Months Ended | |
Sep. 30, 2019 | Dec. 31, 2018 | |
Lessee, Lease, Description [Line Items] | ||
Operating Leases, Future Minimum Payments Due, Next Twelve Months | $ 90 | |
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year | $ 21 | |
Finance Lease, Liability, Payments, Remainder of Fiscal Year | 1 | |
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months | 74 | |
Finance Lease, Liability, Payments, Due Next Twelve Months | 10 | |
Finance Lease, Liability, Payments, Due Next Twelve Months | 5 | |
Operating Leases, Future Minimum Payments, Due in Two Years | 88 | |
Lessee, Operating Lease, Liability, Payments, Due Year Two | 68 | |
Finance Lease, Liability, Payments, Due Year Two | 2 | |
Finance Lease, Liability, Payments, Due Year Two | 8 | |
Operating Leases, Future Minimum Payments, Due in Three Years | 83 | |
Lessee, Operating Lease, Liability, Payments, Due Year Three | 59 | |
Finance Lease, Liability, Payments, Due Year Three | 2 | |
Finance Lease, Liability, Payments, Due Year Three | 3 | |
Operating Leases, Future Minimum Payments, Due in Four Years | 76 | |
Lessee, Operating Lease, Liability, Payments, Due Year Four | 55 | |
Finance Lease, Liability, Payments, Due Year Four | 2 | |
Finance Lease, Liability, Payments, Due Year Four | 2 | |
Operating Leases, Future Minimum Payments, Due in Five Years | 70 | |
Lessee, Operating Lease, Liability, Payments, Due after Year Five | 173 | |
Finance Lease, Liability, Payments, Due after Year Five | 11 | |
Finance Lease, Liability, Payments, Due after Year Five | 4 | |
Operating Leases, Future Minimum Payments Due | 1,232 | |
Lessee, Operating Lease, Liability, Payments, Due | 450 | |
Finance Lease, Liability, Payment, Due | 28 | |
Finance Lease, Liability, Payments, Due | 24 | |
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 80 | |
Finance Lease, Interest Payment on Liability | 8 | |
Finance Lease, Interest Payment on Liability | 3 | |
Operating Lease, Liability | 370 | |
Finance Lease, Liability | 21 | |
Finance Lease, Liability, Payments, Due Year Five | 2 | |
Operating Leases, Future Minimum Payments, Due Thereafter | $ 825 | |
Finance Lease, Liability | 20 | |
MPC | ||
Lessee, Lease, Description [Line Items] | ||
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year | 5 | |
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months | 14 | |
Lessee, Operating Lease, Liability, Payments, Due Year Two | 14 | |
Lessee, Operating Lease, Liability, Payments, Due Year Three | 14 | |
Lessee, Operating Lease, Liability, Payments, Due Year Four | 14 | |
Lessee, Operating Lease, Liability, Payments, Due after Year Five | 619 | |
Lessee, Operating Lease, Liability, Payments, Due | 680 | |
Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 448 | |
Operating Lease, Liability | $ 232 |
Leases Lessor Maturity Table (D
Leases Lessor Maturity Table (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Lessor, Lease, Description [Line Items] | ||
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Current Year | $ 3 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Next Twelve Months | 14 | |
Operating Leases, Future Minimum Payments Receivable, Current | $ 1,448 | |
Operating Leases, Future Minimum Payments Receivable, in Two Years | 1,438 | |
Operating Leases, Future Minimum Payments Receivable, in Three Years | 1,300 | |
Operating Leases, Future Minimum Payments Receivable, in Four Years | 1,294 | |
Operating Leases, Future Minimum Payments Receivable, in Five Years | 1,239 | |
Operating Leases, Future Minimum Payments Receivable, Thereafter | 4,900 | |
Operating Leases, Future Minimum Payments Receivable | 11,619 | |
Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year | 341 | |
Lessor, Operating Lease, Payments to be Received, Next Twelve Months | 1,365 | |
Lessor, Operating Lease, Payments to be Received, Two Years | 1,353 | |
Lessor, Operating Lease, Payments to be Received, Three Years | 1,347 | |
Lessor, Operating Lease, Payments to be Received, Four Years | 1,288 | |
Lessor, Operating Lease, Payments to be Received, Thereafter | 5,173 | |
Lessor, Operating Lease, Payments to be Received | 10,867 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years | 14 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years | 14 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years | 15 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter | 34 | |
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received | 94 | |
Sales-type and Direct Financing Leases, Lease Receivable, Undiscounted Excess Amount | 47 | |
Sales-type Lease, Lease Receivable | 47 | |
Related Party [Member] | ||
Lessor, Lease, Description [Line Items] | ||
Operating Leases, Future Minimum Payments Receivable, Current | 1,277 | |
Operating Leases, Future Minimum Payments Receivable, in Two Years | 1,275 | |
Operating Leases, Future Minimum Payments Receivable, in Three Years | 1,146 | |
Operating Leases, Future Minimum Payments Receivable, in Four Years | 1,143 | |
Operating Leases, Future Minimum Payments Receivable, in Five Years | 1,094 | |
Operating Leases, Future Minimum Payments Receivable, Thereafter | 3,786 | |
Operating Leases, Future Minimum Payments Receivable | 9,721 | |
Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year | 294 | |
Lessor, Operating Lease, Payments to be Received, Next Twelve Months | 1,179 | |
Lessor, Operating Lease, Payments to be Received, Two Years | 1,175 | |
Lessor, Operating Lease, Payments to be Received, Three Years | 1,171 | |
Lessor, Operating Lease, Payments to be Received, Four Years | 1,118 | |
Lessor, Operating Lease, Payments to be Received, Thereafter | 3,904 | |
Lessor, Operating Lease, Payments to be Received | 8,841 | |
Third Party [Member] | ||
Lessor, Lease, Description [Line Items] | ||
Operating Leases, Future Minimum Payments Receivable, Current | 171 | |
Operating Leases, Future Minimum Payments Receivable, in Two Years | 163 | |
Operating Leases, Future Minimum Payments Receivable, in Three Years | 154 | |
Operating Leases, Future Minimum Payments Receivable, in Four Years | 151 | |
Operating Leases, Future Minimum Payments Receivable, in Five Years | 145 | |
Operating Leases, Future Minimum Payments Receivable, Thereafter | 1,114 | |
Operating Leases, Future Minimum Payments Receivable | $ 1,898 | |
Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year | 47 | |
Lessor, Operating Lease, Payments to be Received, Next Twelve Months | 186 | |
Lessor, Operating Lease, Payments to be Received, Two Years | 178 | |
Lessor, Operating Lease, Payments to be Received, Three Years | 176 | |
Lessor, Operating Lease, Payments to be Received, Four Years | 170 | |
Lessor, Operating Lease, Payments to be Received, Thereafter | 1,269 | |
Lessor, Operating Lease, Payments to be Received | $ 2,026 |
Leases Lessor Operating Leased
Leases Lessor Operating Leased Assets (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018 |
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | $ 6,594 | $ 6,212 |
Property Subject to or Available for Operating Lease, Accumulated Depreciation | 2,271 | 2,074 |
Property Subject to or Available for Operating Lease, Net | 4,323 | 4,138 |
Natural gas gathering and NGL transportation pipelines and facilities | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 1,061 | 964 |
Processing, fractionation and storage facilities | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 1,911 | 1,670 |
Pipelines and related assets | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 364 | 376 |
Barges and towing vessels | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 674 | 619 |
Terminals and related assets | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 1,316 | 1,415 |
Refineries and related assets | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | 998 | 981 |
Land, building, office equipment and other | ||
Lessor, Lease, Description [Line Items] | ||
Property Subject to or Available for Operating Lease, Gross | $ 270 | $ 187 |
Leases Lessor Lease Revenues (D
Leases Lessor Lease Revenues (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
Sep. 30, 2019 | Sep. 30, 2019 | |
Lessor, Lease, Description [Line Items] | ||
Operating Lease, Lease Income | $ 63 | $ 196 |
MPC | ||
Lessor, Lease, Description [Line Items] | ||
Operating Lease, Lease Income | 248 | $ 773 |
Sales-type Lease, Interest Income | 3 | |
Sales-type Lease, Variable Lease Income | $ 1 |
Commitments and Contingencies -
Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions | Sep. 06, 2016 | Sep. 30, 2019 | Dec. 31, 2018 |
Commitments And Contingencies [Line Items] | |||
Accrued liabilities for environmental remediation | $ 19 | $ 20 | |
Contractual commitments to acquire property, plant and equipment | 788 | ||
MPC | |||
Commitments And Contingencies [Line Items] | |||
Due to Related Parties, Current | 477 | 360 | |
Environmental Loss Contingency [Member] | MPC | |||
Commitments And Contingencies [Line Items] | |||
Due to Related Parties, Current | 0 | $ 0 | |
MarkWest, MarkWest Liberty Midstream, MarkWest Bluestone, Ohio Fractionation, MarkWest Utica EMG [Member] [Member] | |||
Commitments And Contingencies [Line Items] | |||
Loss Contingency, Damages Sought, Value | 10 | ||
Bilfinger Westcon, Inc. [Member] | |||
Commitments And Contingencies [Line Items] | |||
Loss Contingency, Damages Sought, Value | $ 40 | ||
Apex [Member] | |||
Commitments And Contingencies [Line Items] | |||
Apex litigation settlement amount | $ 10 | ||
Indirect Ownership Interest [Member] | Bakken Pipeline System [Member] | |||
Commitments And Contingencies [Line Items] | |||
Equity method investment, ownership percentage | 9.00% | ||
Guarantee Type, Other [Member] | |||
Commitments And Contingencies [Line Items] | |||
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 230 | ||
ANDX LP [Member] | |||
Commitments And Contingencies [Line Items] | |||
Purchase Obligation | $ 11,900 |