Fresh Start Accounting - Cumulative Net Impact on Accumulated Deficit (Details) - USD ($)		1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Feb. 09, 2021	Feb. 09, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021
Reorganization, Chapter 11 [Line Items]
Total reorganization items, net		$ (5,569,000,000)			$ 0	$ 0
Net impact on accumulated deficit	$ 0	0	$ 719,000,000			719,000,000	$ 825,000,000
Reorganization Adjustments
Reorganization, Chapter 11 [Line Items]
Gains on the settlement of liabilities subject to compromise	6,443,000,000	6,443,000,000
Accrual of professional service provider success fees	(38,000,000)	(38,000,000)
Accrual of professional service provider fees	(5,000,000)	(5,000,000)
Surrender of other receivable	(18,000,000)	18,000,000
Payment of FLLO alternative transaction fee	(12,000,000)
Total reorganization items, net	6,370,000,000	(5,569,000,000)	$ 0	$ 0	$ 0	$ 0
Cancellation of predecessor equity	18,571,000,000	18,571,000,000
Net impact on accumulated deficit	$ 24,941,000,000	$ 24,941,000,000