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Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Income From Operations Attributable To Operating Segments

Segment income represents income from operations attributable to the reportable segments. Corporate administrative expenses, except for those attributable to MPLX, and costs related to certain non-operating assets are not allocated to the Refining & Marketing and Retail segments. In addition, certain items that affect comparability (as determined by the chief operating decision maker) are not allocated to the reportable segments.

(In millions)	Refining & Marketing				Retail				Midstream				Total
Three Months Ended September 30, 2019
Revenues:
Third party(a)	$	21,437			$	8,677			$	929			$	31,043
Intersegment	5,100				2				1,235				6,337
Segment revenues	$	26,537			$	8,679			$	2,164			$	37,380
Segment income from operations	$	883			$	442			$	919			$	2,244
Supplemental Data
Depreciation and amortization(b)	$	397			$	113			$	300			$	810
Capital expenditures and investments(c)	561				177				783				1,521

(In millions)	Refining & Marketing				Retail				Midstream				Total
Three Months Ended September 30, 2018
Revenues:
Third party(a)	$	16,751			$	5,395			$	842			$	22,988
Intersegment	2,931				1				787				3,719
Segment revenues	$	19,682			$	5,396			$	1,629			$	26,707
Segment income from operations	$	666			$	161			$	679			$	1,506
Supplemental Data
Depreciation and amortization(b)	$	257			$	76			$	205			$	538
Capital expenditures and investments(c)	226				98				593				917

(In millions)	Refining & Marketing				Retail				Midstream				Total
Nine Months Ended September 30, 2019
Revenues:
Third party(a)	$	65,043			$	24,997			$	2,817			$	92,857
Intersegment	15,011				6				3,685				18,702
Segment revenues	$	80,054			$	25,003			$	6,502			$	111,559
Segment income from operations	$	1,455			$	1,105			$	2,705			$	5,265
Supplemental Data
Depreciation and amortization(b)	$	1,235			$	369			$	925			$	2,529
Capital expenditures and investments(c)	1,385				370				2,420				4,175

(In millions)	Refining & Marketing				Retail				Midstream				Total
Nine Months Ended September 30, 2018
Revenues:
Third party(a)	$	46,635			$	15,231			$	2,305			$	64,171
Intersegment	8,181				4				2,180				10,365
Segment revenues	$	54,816			$	15,235			$	4,485			$	74,536
Segment income from operations	$	1,558			$	415			$	1,863			$	3,836
Supplemental Data
Depreciation and amortization(b)	$	761			$	228			$	577			$	1,566
Capital expenditures and investments(c)	613				225				1,676				2,514

^(a)  Includes related party sales. See Note 6 for additional information.

^(b)  Differences between segment totals and MPC consolidated totals represent amounts related to corporate and other unallocated items and are included in items not allocated to segments in the reconciliation below.

^(c) 

Capital expenditures include changes in capital accruals and investments in affiliates. See reconciliation from segment totals to MPC consolidated total capital expenditures below.

Reconciliation Of Segment Income From Operations To Income Before Income Taxes

The following reconciles segment income from operations to income before income taxes as reported in the consolidated statements of income:

	Three Months Ended  September 30,								Nine Months Ended  September 30,
(In millions)	2019				2018				2019				2018
Segment income from operations	$	2,244			$	1,506			$	5,265			$	3,836
Items not allocated to segments:
Corporate and other unallocated items(a)	(198		)		(99		)		(568		)		(269		)
Capline restructuring gain(b)	—				—				207				—
Transaction-related costs(c)	(22		)		(4		)		(147		)		(14		)
Litigation	—				—				(22		)		—
Impairments	—				—				—				1
Income from operations	2,024				1,403				4,735				3,554
Net interest and other financial costs	317				240				945				618
Income before income taxes	$	1,707			$	1,163			$	3,790			$	2,936

^(a)  Corporate and other unallocated items consist primarily of MPC’s corporate administrative expenses and costs related to certain non-operating assets, except for corporate overhead expenses attributable to MPLX, which are included in the Midstream segment. Corporate overhead expenses are not allocated to the Refining & Marketing and Retail segments.

^(b)  See Note 13.

^(c)  The transaction-related costs recognized in the 2019 year-to-date period include the recognition of an obligation for employee benefits provided to former Andeavor employees.

Reconciliation Of Segment Capital Expenditures And Investments To Total Capital Expenditures

The following reconciles segment capital expenditures and investments to total capital expenditures:

	Three Months Ended  September 30,								Nine Months Ended  September 30,
(In millions)	2019				2018				2019				2018
Segment capital expenditures and investments	$	1,521			$	917			$	4,175			$	2,514
Less investments in equity method investees	197				104				792				222
Plus items not allocated to segments:
Corporate	30				7				44				42
Capitalized interest	32				21				97				55
Total capital expenditures(a)	$	1,386			$	841			$	3,524			$	2,389

^(a) 

Capital expenditures include changes in capital accruals. See Note 19 for a reconciliation of total capital expenditures to additions to property, plant and equipment for the nine months ended September 30, 2019 and 2018 as reported in the consolidated statements of cash flows.

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Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

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