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Restructuring and Related Implementation Charges (Details 1) - 2012 Restructuring Program - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Restructuring Cost and Reserve [Line Items]        
Total 2012 Restructuring Program charges, pretax $ 142 $ 59 $ 188 $ 114
Total 2012 Restructuring Program charges, aftertax 115 44 146 82
Cost of sales        
Restructuring Cost and Reserve [Line Items]        
Total 2012 Restructuring Program charges, pretax 21 12 35 20
Selling, general and administrative expenses        
Restructuring Cost and Reserve [Line Items]        
Total 2012 Restructuring Program charges, pretax 17 14 38 40
Other (income) expense, net        
Restructuring Cost and Reserve [Line Items]        
Total 2012 Restructuring Program charges, pretax $ 104 $ 33 $ 115 $ 54