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Accumulated Other Comprehensive Loss - Summary of Income Tax Benefit (Expense) to Component of Other Comprehensive Loss (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of year | $ 51 |
Balance, end of year | 28 | $ 51
Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of year | 23 | (12)
Net unrealized (gain) loss | (36) | 35
Reclassification of net loss to net income | (1) |
Balance, end of year | (14) | 23
Accumulated Net Unrealized Loss On Other Long Term Liabilities [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of year | 21 | 17
Net unrealized (gain) loss | 15 | 5
Reclassification of net loss to net income | (1) | (1)
Balance, end of year | 35 | 21
Accumulated Translation Adjustment [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance, beginning of year | 7 |
Balance, end of year | $ 7 | $ 7

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