Derivatives - Schedule of Fair Value of Derivative Financial Instruments (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	$ 84	$ 13
Fair Value of Derivatives, Liability	18	18
Derivatives Designated as Effective Hedges | Cash Flow Hedges | Foreign currency contracts
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	23	1
Fair Value of Derivatives, Liability	2	13
Derivatives Designated as Effective Hedges | Fair Value Hedges | Interest rate swaps
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	8	2
Fair Value of Derivatives, Liability	0	1
Derivatives Designated as Effective Hedges | Net Investment Hedge | Cross-currency swaps
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	21	0
Fair Value of Derivatives, Liability	0	0
Derivatives Not Designated as Effective Hedges
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	32	10
Fair Value of Derivatives, Liability	$ 16	$ 4