CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions		Total		Contingent convertible senior notes exchanged for shares of common stock	Senior notes exchanged for shares of common stock	Preferred stock, exchanged for shares of common stock	Class A Warrants	Class B Warrants	Class C Warrants	Preferred stock	Preferred stock Preferred stock, exchanged for shares of common stock	Common Stock	Common Stock Contingent convertible senior notes exchanged for shares of common stock	Common Stock Senior notes exchanged for shares of common stock	Common Stock Preferred stock, exchanged for shares of common stock	Additional Paid-in Capital	Additional Paid-in Capital Contingent convertible senior notes exchanged for shares of common stock	Additional Paid-in Capital Senior notes exchanged for shares of common stock	Additional Paid-in Capital Preferred stock, exchanged for shares of common stock	Additional Paid-in Capital Class A Warrants	Additional Paid-in Capital Class B Warrants	Additional Paid-in Capital Class C Warrants	Retained earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)										5,603,458		4,568,581
Beginning balance at Dec. 31, 2018		$ 2,133								$ 1,671		$ 0				$ 14,387							$ (13,912)	$ (23)	$ (31)	$ 41
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for acquisition (in shares)												3,586,880
Common shares issued for acquisition		2,037														2,037
Share-based compensation (in shares)												20,731
Share-based compensation		27														27
Dividends, Preferred Stock		(91)														(91)
Hedging activity		35	[1]																					35
Net income (loss)		(308)																					(308)
Purchase of shares for company benefit plans		(7)																							(7)
Release of shares for company benefit plans		6																							6
Net loss attributable to noncontrolling interests		0
Exchange of stock (in shares)											(40,000)		366,945	1,177,817	51,839
Exchange of stock				$ 135	$ 440	$ 0					$ (40)						$ 135	$ 440	$ 40
Equity component of contingent convertible notes repurchased		(2)														(2)
Distributions to noncontrolling interest owners		(4)																								(4)
Ending balance (in shares) at Dec. 31, 2019										5,563,458		9,772,793
Ending balance at Dec. 31, 2019		4,401								$ 1,631		$ 0				16,973							(14,220)	12	(32)	37
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)										5,563,458		9,772,793
Share-based compensation (in shares)												7,753
Share-based compensation		(14)														(14)
Dividends, Preferred Stock		(22)														(22)
Hedging activity		33	[1]																					33
Net income (loss)		(9,734)																					(9,734)
Exchange of preferred stock into common stock (in shares)											(100)				1
Exchange of preferred stock into common stock						$ 0
Purchase of shares for company benefit plans		(2)																							(2)
Release of shares for company benefit plans		34																							34
Net loss attributable to noncontrolling interests		(16)																								(16)
Divestiture of underlying assets		(21)																								(21)
Ending balance (in shares) at Dec. 31, 2020										5,563,358		9,780,547
Ending balance at Dec. 31, 2020		(5,341)								$ 1,631		$ 0				16,937							(23,954)	45	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)										5,563,358		9,780,547
Share-based compensation (in shares)												67
Share-based compensation		3														3
Hedging activity		3	[1]																					3
Net income (loss)		5,383																					5,383
Net loss attributable to noncontrolling interests		0
Cancellation of Predecessor equity (in shares)										(5,563,358)		(9,780,614)
Cancellation of Predecessor equity		(48)								$ (1,631)						(16,940)							18,571	(48)
Issuance of Successor common stock (in shares)												97,907,081
Issuance of Successor common stock		3,331										$ 1				3,330
Issuance (in shares)							$ 93	$ 94	$ 68											$ 93	$ 94	$ 68
Ending balance (in shares) at Feb. 09, 2021										0		97,907,081
Ending balance at Feb. 09, 2021		3,586								$ 0		$ 1				3,585							0	0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)										0		97,907,081
Common shares issued for acquisition (in shares)												18,709,399
Common shares issued for acquisition		1,237														1,237
Share-based compensation (in shares)												248,487
Share-based compensation		21														21
Hedging activity	[1]	0
Net income (loss)		945
Net loss attributable to noncontrolling interests		0
Issuance (in shares)												188,292
Issuance (in shares)		2														2
Issuance of reserved common stock and warrants (in shares)												864,090
Issuance of reserved common stock and warrants		0
Dividends on common stock		(120)																					(120)
Ending balance (in shares) at Dec. 31, 2021										0		117,917,349
Ending balance at Dec. 31, 2021		$ 5,671								$ 0		$ 1				$ 4,845							$ 825	$ 0	$ 0	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)										0		117,917,349

[1] Deferred tax activity incurred in other comprehensive income was offset by a valuation allowance.