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Fair Value Measurements and Financial Instruments - Schedule of Notional Values (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Fair Value Hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative $ 989 $ 788
Fair Value Hedges | Foreign currency contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 589 388
Fair Value Hedges | Foreign Currency Debt    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Fair Value Hedges | Interest rate swap contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 400 400
Fair Value Hedges | Forward-starting interest rate swaps    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Fair Value Hedges | Commodity contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Cash Flow Hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 1,171 781
Cash Flow Hedges | Foreign currency contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 854 761
Cash Flow Hedges | Foreign Currency Debt    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Cash Flow Hedges | Interest rate swap contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Cash Flow Hedges | Forward-starting interest rate swaps    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 300 0
Cash Flow Hedges | Commodity contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 17 20
Net Investment Hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 5,051 4,334
Net Investment Hedges | Foreign currency contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 528 478
Net Investment Hedges | Foreign Currency Debt    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 4,523 3,856
Net Investment Hedges | Interest rate swap contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Net Investment Hedges | Forward-starting interest rate swaps    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative 0 0
Net Investment Hedges | Commodity contracts    
Derivative Instruments, Gain (Loss) [Line Items]    
Notional value of derivative $ 0 $ 0