Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Data [Abstract]

Schedule Of Quarterly Financial Information

As a result of the agreement to sell Speedway, Speedway’s results are reported separately as discontinued operations in our consolidated statements of income for all periods presented.

Prior to presentation of Speedway as discontinued operations, Speedway and our retained direct dealer business were the two reporting units within our Retail segment. Beginning with the third quarter of 2020, the direct dealer business is managed as part of the Refining & Marketing segment. The results of the Refining & Marketing segment have been retrospectively adjusted to include the results of the direct dealer business in all periods presented.

In accordance with ASC 205, Discontinued Operations, intersegment sales from our Refining & Marketing segment to Speedway are no longer eliminated as intercompany transactions and are now presented within sales and other operating revenue, since we will continue to supply fuel to Speedway subsequent to the sale to 7-Eleven. All periods presented have been retrospectively adjusted to reflect this change.

	2020
	Quarter Ended
(In millions, except per share data)	March 31		June 30		September 30		December 31
Sales and other operating revenues	$	22,204	$	12,195	$	17,408	$	17,972
Income (loss) from continuing operations	(12,155)		575		(1,057)		390
Income (loss) from continuing operations, net of tax	(10,536)		84		(980)		250
Net income (loss)	(10,218)		276		(609)		574
Net income (loss) attributable to MPC	(9,234)		9		(886)		285
Income (loss) from continuing operations per share(a):
Basic	$	(14.74)	$	(0.28)	$	(1.93)	$	(0.06)
Diluted	(14.74)		(0.28)		(1.93)		(0.06)

	2019
	Quarter Ended
(In millions, except per share data)	March 31		June 30		September 30		December 31
Sales and other operating revenues	$	25,349	$	30,239	$	27,552	$	28,008
Income from continuing operations	526		1,698		1,680		558
Income from continuing operations, net of tax	150		1,109		1,113		77
Net income	259		1,367		1,367		262
Net income (loss) attributable to MPC	(7)		1,106		1,095		443
Income (loss) from continuing operations per share(a):
Basic	$	(0.17)	$	1.28	$	1.28	$	0.40
Diluted	(0.17)		1.27		1.27		0.40

(a)The sum of the per-share amounts for the four quarters may not always equal the annual per-share amounts due to differences in the average number of shares outstanding during the respective periods