Financial Instruments and Fair Value Measures - Summary of Financial Assets and Liabilities Accounted for at Fair Value on Recurring Basis (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	$ 1,399,000,000	$ 1,820,000,000
Undesignated as Hedging | Cross-currency Swap
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value, Assets	1,000,000
Fair Value Measurements Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	1,399,000,000	1,820,000,000
Fair Value, Assets	7,000,000	7,000,000
Fair Value, Liabilities	3,000,000	6,000,000
Fair Value Measurements Recurring | Level 2 | Designated as Hedging | Forward Currency Exchange Contracts
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	286,000,000	392,000,000
Fair Value, Assets	4,000,000	5,000,000
Fair Value, Liabilities	1,000,000	1,000,000
Fair Value Measurements Recurring | Level 2 | Undesignated as Hedging | Forward Currency Exchange Contracts
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	224,000,000	447,000,000
Fair Value, Assets	2,000,000	2,000,000
Fair Value, Liabilities		3,000,000
Fair Value Measurements Recurring | Level 2 | Undesignated as Hedging | Cross-currency Swap
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	418,000,000	420,000,000
Fair Value, Assets	1,000,000
Fair Value, Liabilities		1,000,000
Fair Value Measurements Recurring | Level 2 | Undesignated as Hedging | Interest Rate Swap
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notional Amounts	471,000,000	561,000,000
Fair Value, Liabilities	$ 2,000,000	$ 1,000,000