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Income Taxes - Components of the Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
U.S. State: |  |  |
Current | $ 1 | $ 1 |
U.S. State, Total | 1 | 1 |
Foreign |  |  |
Current | 5 | 6 | $ 1
Deferred | (2) | (1) | $ (1)
Foreign, Total | 3 | 5 |
Income tax provision (benefit) | $ 4 | $ 6 |

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