Derivative Financial Instruments - Schedule of Fair Value by Underlying Risk and Balance Sheet Classification (Detail) - Cash Flow Hedging [Member] - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Total derivatives asset		$ 4
Total derivatives liability	$ 54	12
Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivatives Fair Value [Line Items]
Total derivatives liability	22	10
Derivatives Not Designated as Hedges [Member]
Derivatives Fair Value [Line Items]
Total derivatives asset	1	1
Total derivatives liability	41	68
Derivatives Not Designated as Hedges [Member] | Accrued Liabilities [Member]
Derivatives Fair Value [Line Items]
Total derivatives liability	41	68
Other Current Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Total derivatives asset		3
Other Current Assets [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives Fair Value [Line Items]
Total derivatives asset	1	1
Other Non-current Assets [Member] | Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Total derivatives asset		1
Other Non-current Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives Fair Value [Line Items]
Total derivatives liability	$ 32	$ 2