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Income Taxes (Effective Income Tax Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. statutory rate at 21%	$ (88)	$ 152	$ 133
Tax on foreign income	(29)	27	10
Valuation allowance changes	26	(11)	(33)
State taxes	9	5	7
U.S. taxes on foreign income, net of credits	13	14	15
Tax contingencies	8	1	19
Tax law changes	(8)	4	(11)
Other items, net	12	7	(4)
Total	$ (57)	$ 199	$ 136

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- Definition

Effective Income Tax Rate Reconciliation, Repatriation Of Foreign Earnings, Net Of Tax Credits, Amount

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

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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