v3.19.3.a.u2
Financial Instruments, Derivatives and Fair Value Measures - Location of Derivative Instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2016
Derivative instruments, notional amount and fair value      
Fair Value - Assets $ 196 $ 114  
Fair Value - Liabilities 635 195  
Designated as hedging instrument | Short-term borrowings | Net investment hedges      
Derivative instruments, notional amount and fair value      
Fair Value - Liabilities     $ 454
Designated as hedging instrument | Interest rate swaps | Deferred income taxes and other assets | Fair value hedges      
Derivative instruments, notional amount and fair value      
Fair Value - Assets 48    
Designated as hedging instrument | Interest rate swaps | Post-employment obligations and other long-term liabilities | Fair value hedges      
Derivative instruments, notional amount and fair value      
Fair Value - Liabilities   100  
Designated as hedging instrument | Foreign currency forward exchange contracts | Other prepaid expenses and receivables      
Derivative instruments, notional amount and fair value      
Fair Value - Assets 110 81  
Designated as hedging instrument | Foreign currency forward exchange contracts | Other accrued liabilities      
Derivative instruments, notional amount and fair value      
Fair Value - Liabilities 56 44  
Designated as hedging instrument | Debt | Long-term Debt | Net investment hedges      
Derivative instruments, notional amount and fair value      
Fair Value - Liabilities 546    
Not designated as hedging instrument | Foreign currency forward exchange contracts | Other prepaid expenses and receivables      
Derivative instruments, notional amount and fair value      
Fair Value - Assets 38 33  
Not designated as hedging instrument | Foreign currency forward exchange contracts | Other accrued liabilities      
Derivative instruments, notional amount and fair value      
Fair Value - Liabilities $ 33 $ 51