Segment Information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Adjusted EBITDA

(Millions of dollars)	2024		2023		2022
Segment adjusted EBITDA for reportable segments
Refining & Marketing	5,703		$	13,705	$	19,259
Midstream	6,544		6,171		5,772
Renewable Diesel	(150)		(64)		3
Total reportable segments	$	12,097	$	19,812	$	25,034

(Millions of dollars)	2024		2023		2022
Reconciliation of segment adjusted EBITDA for reportable segments to income from continuing operations before income taxes
Total reportable segments	$	12,097	$	19,812	$	25,034
Corporate	(774)		(737)		(698)
Refining & Renewable Diesel planned turnaround costs	(1,404)		(1,201)		(1,122)
Renewable Diesel JV planned turnaround costs(a)	(9)		(25)		—
Garyville incident response costs	—		(16)		—
LIFO inventory (charge) credit	161		(145)		148
Gain on sale of assets(b)	151		198		1,058
Renewable volume obligation requirements(c)	—		—		238
Litigation	—		—		27
Depreciation and amortization	(3,337)		(3,307)		(3,215)
Renewable Diesel JV depreciation and amortization(a)	(89)		(65)		(1)
Net interest and other financial costs	(839)		(525)		(1,000)
Income from continuing operations before income taxes	$	5,957	$	13,989	$	20,469

(a)    Represents MPC’s pro-rata share of expenses from joint ventures included within the Renewable Diesel segment.

(b)    2024 includes the gain from the Whistler Joint Venture Transaction (as defined in Note 14). 2023 includes the gain associated with the remeasurement of MPLX’s existing equity investment in MarkWest Torñado GP, L.L.C., arising from the acquisition of the remaining 40 percent interest and the gain on the sale of our interest in South Texas Gateway Terminal LLC. 2022 includes the $549 million gain related to the contribution of assets by MPC on the formation of the Martinez Renewables LLC joint venture and the $509 million gain on lease reclassification. See Notes 14 and 26 for additional information.

(c)    Represents retroactive changes in renewable volume obligation requirements published by EPA in June 2022 for the 2020 and 2021 annual obligations.

Reconciliation of Revenue from Segments to Consolidated

(Millions of dollars)	2024		2023		2022
Sales and other operating revenues
Refining & Marketing
Revenues from external customers(a)	$	131,588	$	141,835	$	171,461
Intersegment revenues	175		139		135
Refining & Marketing segment revenues	131,763		141,974		171,596
Midstream
Revenues from external customers(a)	5,197		4,911		5,366
Intersegment revenues	5,797		5,597		5,224
Midstream segment revenues	10,994		10,508		10,590
Renewable Diesel
Revenues from external customers(a)	2,079		1,633		626
Intersegment revenues	25		31		126
Renewable Diesel segment revenues	2,104		1,664		752
Total segment revenues	144,861		154,146		182,938
Less: intersegment revenues	5,997		5,767		5,485
Consolidated sales and other operating revenues	$	138,864	$	148,379	$	177,453

(a)    Includes sales to related parties. See Note 7 for additional information.

Other Significant Reconciling Items from Segments to Consolidated

(Millions of dollars)	2024		2023		2022
Income from equity method investments
Refining & Marketing	$	57	$	66	$	51
Midstream	770		735		624
Renewable Diesel	70		(59)		(20)
Total segment income from equity method investments	897		742		655
Corporate(a)	151		—		—
Consolidated income from equity method investments	$	1,048	$	742	$	655

(a)    Represents the gain from the Whistler Joint Venture Transaction. See Note 14 for additional information.

(Millions of dollars)	2024		2023		2022
Segment expenses
Refining & Marketing
Cost of purchases	$	112,938	$	115,973	$	139,660
Refining operating costs	5,712		5,625		5,726
Distribution costs	5,857		5,645		5,211
Other segment items(a)	1,610		1,092		1,791
Refining & Marketing segment expenses	$	126,117	$	128,335	$	152,388
Midstream
Other segment items(b)	5,220		5,072		5,442
Midstream segment expenses	$	5,220	$	5,072	$	5,442
Renewable Diesel
Operating costs	269		242		106
Distribution costs	95		82		61
Other segment items(c)	1,960		1,345		562
Renewable Diesel segment expenses	$	2,324	$	1,669	$	729

(a)    Other segment items for the Refining & Marketing segment include costs that are reimbursed by customers through commercial arrangements, as well as LIFO inventory adjustments.

(b)    Other segment items for the Midstream segment include operating expenses and purchased product costs. For purposes of managing Midstream segment of MPC, the CODM is only provided consolidated Midstream expense information.

(c)    Other segment items for the Renewable Diesel segment includes purchased product costs.

(Millions of dollars)	2024		2023		2022
Depreciation and amortization
Refining & Marketing	$	1,767	$	1,822	$	1,783
Midstream	1,405		1,320		1,310
Renewable Diesel(a)	75		65		67
Total segment depreciation and amortization	3,247		3,207		3,160
Corporate	90		100		55
Consolidated depreciation and amortization	$	3,337	$	3,307	$	3,215

(a)    Excludes our pro-rata share of Renewable Diesel JV depreciation and amortization of $89 million, $65 million and $1 million in 2024, 2023 and 2022, respectively, which was adjusted for purposes of arriving at Renewable Diesel segment adjusted EBITDA.

(Millions of dollars)	2024		2023		2022
Capital expenditures
Refining & Marketing	$	1,445	$	998	$	1,275
Midstream	1,504		1,105		1,069
Renewable Diesel	8		313		233
Total segment capital expenditures and investments	2,957		2,416		2,577
Less investments in equity method investees	509		480		405
Plus:
Corporate	63		83		108
Capitalized interest	56		55		103
Consolidated capital expenditures(a)	$	2,567	$	2,074	$	2,383

(a)    Includes changes in capital expenditure accruals. See Note 21 for a reconciliation of total capital expenditures to additions to property, plant and equipment as reported in the consolidated statements of cash flows.