Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations before income taxes	$ 2,777	$ 352	$ 574
Tax Rate	21.00%	21.00%	21.00%
Income tax expense (benefit) at federal statutory rate	$ 583	$ 74	$ 121
Valuation allowance	(521)	(26)	(259)
Dividends received deduction	(34)	(39)	(37)
State tax expense (benefit)	37	16	1
Noncontrolling interest	(161)	(33)	(10)
Tax credits	(14)	(11)	(33)
Nondeductible expenses	5	1	1
Other	7	0	(1)
Total income tax expense (benefit)	$ (98)	$ (18)	$ (217)
Effective tax rate	(3.50%)	(5.10%)	(37.80%)

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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