Fair Value Measurements and Financial Instruments - Schedule of Notional Values (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	$ 1,019	$ 989
Fair Value Hedges | Foreign Currency Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	619	589
Fair Value Hedges | Foreign Currency Debt
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Fair Value Hedges | Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	400	400
Fair Value Hedges | Forward-starting interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Fair Value Hedges | Commodity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	1,456	1,171
Cash Flow Hedges | Foreign Currency Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	837	854
Cash Flow Hedges | Foreign Currency Debt
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Cash Flow Hedges | Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Cash Flow Hedges | Forward-starting interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	600	300
Cash Flow Hedges | Commodity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	19	17
Net Investment Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	5,274	5,051
Net Investment Hedges | Foreign Currency Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	657	528
Net Investment Hedges | Foreign Currency Debt
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	4,617	4,523
Net Investment Hedges | Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Net Investment Hedges | Forward-starting interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	0	0
Net Investment Hedges | Commodity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional values	$ 0	$ 0