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

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Percentage 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 changes in the income tax rates.

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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 income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2021
Income tax provision	$ 16		$ 51	$ 99	$ 63
Effective tax rate	4.00%		19.80%	12.10%	17.80%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 64
Subsequent Event
Increase in Unrecognized Tax Benefits is Reasonably Possible						$ 100
Foreign Tax Authority
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	25.00%	19.00%