Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY Amounts Reclassified from AOCI (Detail)

v3.19.2
SHAREOWNERS' EQUITY Amounts Reclassified from AOCI (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Net Income [Member] [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
TotalOtherComprehensiveIncomeReclassification, Net of Tax $ (16) $ (58) $ (46) $ (134)
Accumulated Net Unrealized Investment Gain (Loss) [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax 0 0 0 1
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax     0 (1)
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Income Tax Expense Benefit [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax 0 0 0 1
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Net Income [Member] [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 0 0 0 (1)
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Investment income and other        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax 0 0 0 (2)
Unrealized gain (loss) on cash flow hedges, net of tax:        
AmountsReclassifiedFromAOCI [Line Items]        
Reclassification to earnings, tax effect (9) 6 (13) 18
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax (27) 20 40 (56)
Unrealized gain (loss) on cash flow hedges, net of tax: | Income Tax Expense Benefit [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Reclassification to earnings, tax effect (9) 6 (13) 18
Unrealized gain (loss) on cash flow hedges, net of tax: | Net Income [Member] [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 27 (20) 40 (56)
Unrealized gain (loss) on cash flow hedges, net of tax: | Interest rate contracts | Interest Expense        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax (3) (6) (9) (12)
Unrealized gain (loss) on cash flow hedges, net of tax: | Foreign exchange contracts | Interest Expense        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax 39 (20) 62 (62)
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     0 (609)
Accumulated Defined Benefit Plans Adjustment [Member] | Labor and Related Expense [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax (57) (50) (113) (101)
Accumulated Defined Benefit Plans Adjustment [Member] | Income Tax Expense Benefit [Member]        
AmountsReclassifiedFromAOCI [Line Items]        
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax 14 12 27 24
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 $ (43) $ (38) $ (86) $ (77)