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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
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