Chapter 11 - Schedule of Reorganization Items (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reorganizations [Abstract]
Advisory and professional fees after filing	$ (127)
Remeasurement of terminated lease to allowed claim	(186)
Interest income on surplus cash	3
Total reorganization items, net	$ (310)	$ 0	$ 0

Amount of interest income on accumulated cash, reported as a reorganization item.

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Amount of reorganization items related to legal and advisory professional fees related to entities in bankruptcy.

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Amount recognized from the revaluation of assets and liabilities.

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