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Income Taxes (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2021
Operating Loss Carryforwards [Line Items] |  |  |
Effective tax rate (percentage) | 26.40% | 1300.00% |
Discrete income tax expense (benefit) | $ (3) | $ (152) |
Discrete tax benefit related to intra-entity asset transfer |  | 157 |
Tax expense related to equity compensation vesting |  | 6 |
Income tax expense (benefit) | (19) | 182 |
Pre-tax income (loss) | $ 72 | $ (14) |
Scenario, Forecast |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Effective tax rate (percentage) |  |  | 30.00%

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