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Accumulated Other Comprehensive Loss - Schedule of Net Income Amounts Reclassified from AOCL (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Sales $ (36,445) $ (32,134)
Cost of sales 31,123 27,559
Interest 88 44
Income tax 706 711
Net of tax (2,031) (2,013)
Total loss reclassified to net income (125) (102)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net (Loss) Gain from Designated or Qualifying Cash Flow Hedges [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Sales (87) (86)
Cost of sales (87) (45)
Interest   (3)
Income tax 48 39
Net of tax (126) (95)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Loss On Other Long Term Liabilities [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Cost of sales 1 (9)
Income tax   2
Net of tax $ 1 $ (7)