Consolidated Statements of Changes in Equity, Parent - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss), net	Noncontrolling Interests
Beginning Balance (in shares) at Dec. 31, 2022		327,130
Beginning balance at Dec. 31, 2022	$ 11,372	$ 13,274	$ (496)	$ (1,760)	$ 354
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	102		96		6
Employee incentive plan (in shares)		528
Employee incentive plans	6	$ 6
Changes in equity of noncontrolling interests	(2)				(2)
Common stock dividends	(93)		(93)
Common stock repurchased (in shares)		(3,239)
Common stock repurchased	(251)	$ (251)
Other comprehensive income (loss), net of income taxes	(48)			(48)
Ending Balance (in shares) at Mar. 31, 2023		324,419
Ending balance at Mar. 31, 2023	$ 11,086	$ 13,029	(493)	(1,808)	358
Beginning Balance (in shares) at Dec. 31, 2023	317,000	317,472
Beginning balance at Dec. 31, 2023	$ 11,286	$ 12,355	761	(2,191)	361
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	883		883		0
Employee incentive plan (in shares)		661
Employee incentive plans	(4)	$ (4)
Common stock dividends	(112)		(112)
Common stock repurchased (in shares)		(2,900)
Common stock repurchased	(504)	$ (504)
Other comprehensive income (loss), net of income taxes	$ 11			11
Ending Balance (in shares) at Mar. 31, 2024	315,000	315,233
Ending balance at Mar. 31, 2024	$ 11,560	$ 11,847	$ 1,532	$ (2,180)	$ 361