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Derivative Instruments - Schedule of Fair Value of Derivative Instruments (Details) - Foreign Exchange Contract - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Derivatives, Fair Value [Line Items]    
Derivative assets $ 171 $ 42
Derivative liabilities 276 410
Designated as Hedging Instrument | Other current assets    
Derivatives, Fair Value [Line Items]    
Derivative assets 40 0
Designated as Hedging Instrument | Other assets (non-current)    
Derivatives, Fair Value [Line Items]    
Derivative assets 15 0
Designated as Hedging Instrument | Other current liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liabilities 171 287
Designated as Hedging Instrument | Other long-term liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liabilities 8 35
Not Designated as Hedging Instrument | Other current assets    
Derivatives, Fair Value [Line Items]    
Derivative assets 116 42
Not Designated as Hedging Instrument | Other current liabilities    
Derivatives, Fair Value [Line Items]    
Derivative liabilities $ 97 $ 88