Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY Amounts Reclassified from AOCI (Detail)

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SHAREOWNERS' EQUITY Amounts Reclassified from AOCI (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Net Income [Member] [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
TotalOtherComprehensiveIncomeReclassification, Net of Tax $ (21) $ 36
Unrealized gain (loss) on cash flow hedges, net of tax:    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (7) (38)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax 11 62
Unrealized gain (loss) on cash flow hedges, net of tax: | Income Tax Expense Benefit [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (7) (38)
Unrealized gain (loss) on cash flow hedges, net of tax: | Net Income [Member] [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax 11 62
Unrealized gain (loss) on cash flow hedges, net of tax: | Interest Rate Contract [Member] | Interest Expense [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax (7) (6)
Unrealized gain (loss) on cash flow hedges, net of tax: | Foreign Exchange Contract [Member] | Revenue [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax 25 106
Accumulated Defined Benefit Plans Adjustment [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax 32 26
Accumulated Defined Benefit Plans Adjustment [Member] | LaborAndRelatedExpense [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax (50) (43)
Accumulated Defined Benefit Plans Adjustment [Member] | Income Tax Expense Benefit [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax 18 17
Accumulated Defined Benefit Plans Adjustment [Member] | Net Income [Member] [Member]    
AmountsReclassifiedFromAOCI [Line Items]    
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax $ (32) $ (26)