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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Components of Income (Loss) Before Income Taxes
United States	$ (1,272)	$ (1,608)	$ 125
Outside of the U.S.	3	2	0
Income (loss) before income taxes	(1,269)	(1,606)	125
Current
Federal	(1)	(43)	31
State & Local	(2)	(24)	14
Deferred
Federal	(219)	208	5
State & Local	(106)	(11)	(6)
Outside of U.S, Current	2	2	0
Outside of U.S, Deferred	43	0	0
Income tax (benefit) expense	(283)	132	44
Allocation of Income Tax Provision (Benefit)
Income from operations	(283)	132	44
Discontinued operations	19	(9)	0
Other comprehensive income	$ 3	$ 8	$ 0

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Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration