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Derivative and Other Financial Instruments - Fair Value Hedges and Contracts Not Designated as Hedges (Details) - Derivatives not designated as hedges - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Derivative [Line Items]    
Gain (loss) on derivative instruments, net, pretax $ 6 $ (7)
Net sales | Foreign exchange    
Derivative [Line Items]    
Gain (loss) on derivative instruments, net, pretax 0 1
Cost of products sold | Foreign exchange    
Derivative [Line Items]    
Gain (loss) on derivative instruments, net, pretax 1 (1)
Cost of products sold | Commodities    
Derivative [Line Items]    
Gain (loss) on derivative instruments, net, pretax 0 (7)
Foreign exchange | Foreign exchange    
Derivative [Line Items]    
Gain (loss) on derivative instruments, net, pretax $ (5) $ 0