Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues and other income:
Sales and other operating revenues	$ 33,547	$ 22,317	$ 61,814	$ 41,183
Income from equity method investments	107	80	206	166
Net gain on disposal of assets	4	3	218	5
Other income	30	45	65	75
Total revenues and other income	33,688	22,445	62,303	41,429
Costs and expenses:
Cost of revenues (excludes items below)	29,682	19,655	55,642	37,166
Depreciation and amortization	886	533	1,805	1,061
Selling, general and administrative expenses	904	424	1,785	826
Other taxes	174	122	360	225
Total costs and expenses	31,646	20,734	59,592	39,278
Income from operations	2,042	1,711	2,711	2,151
Net interest and other financial costs	322	195	628	378
Income before income taxes	1,720	1,516	2,083	1,773
Provision for income taxes	353	281	457	303
Net income	1,367	1,235	1,626	1,470
Less net income attributable to:
Redeemable noncontrolling interest	21	20	41	36
Noncontrolling interests	240	160	486	342
Net income attributable to MPC	$ 1,106	$ 1,055	$ 1,099	$ 1,092
Basic:
Net income attributable to MPC per share	$ 1.67	$ 2.30	$ 1.65	$ 2.34
Weighted average shares outstanding (in shares)	662	459	667	467
Diluted:
Net income attributable to MPC per share	$ 1.66	$ 2.27	$ 1.63	$ 2.31
Weighted average shares outstanding (in shares)	666	464	672	472