Quarterly report pursuant to Section 13 or 15(d)

Activity in Accumulated Other Comprehensive Income (Loss) (Detail)

v3.20.1
Activity in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period $ (5,997)  
Translation adjustment (net of tax effect of $13 and $9) (141) $ 53
Current period changes in fair value (net of tax effect of $0 and $0) 2 4
Current period changes in fair value (net of tax effect of $83 and $28) 217 76
Balance at end of period (5,876) (4,818)
Foreign currency translation gain (loss):    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (1,078) (1,126)
Translation adjustment (net of tax effect of $13 and $9) (141) 53
Balance at end of period (1,219) (1,073)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period 4 (2)
Current period changes in fair value (net of tax effect of $0 and $0) 2 4
Balance at end of period 6 2
Unrealized gain (loss) on cash flow hedges, net of tax:    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period 112 40
Current period changes in fair value (net of tax effect of $83 and $28) 263 89
Reclassification to earnings (net of tax effect of $(15) and $(4)) 46 13
Balance at end of period 329 116
Reclassification to earnings, tax effect (15) (4)
Accumulated Defined Benefit Plans Adjustment [Member]    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (5,035) (3,906)
Remeasurement of plan assets and liabilities (net of tax effect of $0 and $214) (1) 43 43
Balance at end of period (4,992) (3,863)
Income Tax Expense Benefit [Member] | Unrealized gain (loss) on cash flow hedges, net of tax:    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Reclassification to earnings, tax effect (15) (4)
Income Tax Expense Benefit [Member] | Accumulated Defined Benefit Plans Adjustment [Member]    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax 14 13
Net Income [Member] [Member]    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
TotalOtherComprehensiveIncomeReclassification, Net of Tax 3 (30)
Net Income [Member] [Member] | Unrealized gain (loss) on cash flow hedges, net of tax:    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Reclassification to earnings (net of tax effect of $(15) and $(4)) (46) (13)
Net Income [Member] [Member] | Accumulated Defined Benefit Plans Adjustment [Member]    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax (43) (43)
Interest rate contracts | Interest Expense | Unrealized gain (loss) on cash flow hedges, net of tax:    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax $ (3) $ (6)