Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Long-term Income Tax Receivable	Retained Earnings	Accumulated Other Comprehensive (Loss) Income, Net	Noncontrolling Interest
Balance at Dec. 31, 2021	$ 50,589	$ 1,650	$ 0	$ 6,374	$ (744)	$ 40,754	$ (1,340)	$ 3,895
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(20)					(129)		109
Other comprehensive income (loss)	(18)						(18)
Preferred stock dividend	(16)					(16)
Distributions	(116)							(116)
Other equity transactions	5					(1)		6
Balance at Mar. 31, 2022	50,424	1,650	0	6,374	(744)	40,608	(1,358)	3,894
Balance at Dec. 31, 2022	50,639	850	0	6,298	0	41,833	(2,149)	3,807
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,103					989		114
Other comprehensive income (loss)	40						40
Preferred stock dividend	(8)					(8)
Distributions	(125)							(125)
Contributions	2							2
Balance at Mar. 31, 2023	$ 51,651	$ 850	$ 0	$ 6,298	$ 0	$ 42,814	$ (2,109)	$ 3,798