Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net income	$ 1,955	$ 2,580	$ 3,267	$ 5,664
Other comprehensive loss	(9)	(21)	(21)	(32)
Comprehensive income	1,946	2,559	3,246	5,632
Less comprehensive income attributable to:
Redeemable noncontrolling interest	5	23	15	46
Noncontrolling interests	435	331	800	668
Comprehensive income attributable to MPC	1,506	2,205	2,431	4,918
Actuarial changes
Other comprehensive loss	1	(6)	3	(4)
Prior service
Other comprehensive loss	(10)	(12)	(21)	(25)
Other
Other comprehensive loss	$ 0	$ (3)	$ (3)	$ (3)