Consolidated Statements of Equity and Redeemable Noncontrolling Interest (Redeemable Noncontrolling Interest) - USD ($) $ in Millions	Total	Redeemable Non-controlling Interest
Beginning balance at Dec. 31, 2019		$ 968
Net income (loss) attributable to redeemable noncontrolling interest	$ 81	81
Distributions to noncontrolling interests		(81)
Equity transactions of MPLX		0
Ending balance at Dec. 31, 2020		968
Net income (loss) attributable to redeemable noncontrolling interest	100	100
Distributions to noncontrolling interests		(100)
Equity transactions of MPLX		(3)
Ending balance at Dec. 31, 2021	965	965
Net income (loss) attributable to redeemable noncontrolling interest	88	88
Distributions to noncontrolling interests		(85)
Equity transactions of MPLX		0
Ending balance at Dec. 31, 2022	$ 968	$ 968