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Derivatives - Not Designated (Details) - Derivatives not designated as hedging instruments - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivatives not designated as hedging instruments        
Gain (Loss) on Derivative Recognized in Income $ 6 $ (13) $ 28 $ (25)
Foreign currency exchange contracts | Cost of sales        
Derivatives not designated as hedging instruments        
Gain (Loss) on Derivative Recognized in Income   (2)   2
Foreign currency forward/options contracts | Interest expense        
Derivatives not designated as hedging instruments        
Gain (Loss) on Derivative Recognized in Income $ 6 $ (11) $ 28 $ (27)