Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Activity in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period     $ (5,997)  
Translation adjustment (net of tax effect of $(14) and $41) $ 65 $ (48) (66) $ (28)
Current period changes in fair value (net of tax effect of $0 and $1) (2) (3) 3 6
Current period changes in fair value (net of tax effect of $(53) and $79) (195) 206 (92) 270
Balance at end of period (6,022) (4,617) (6,022) (4,617)
Foreign currency translation gain (loss):        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (1,209) (1,106) (1,078) (1,126)
Translation adjustment (net of tax effect of $(14) and $41) 65 (48) (66) (28)
Balance at end of period (1,144) (1,154) (1,144) (1,154)
Aggregate adjustment for the period, tax (14) 41 (15) 43
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period 9 7 4 (2)
Current period changes in fair value (net of tax effect of $0 and $1) (1) 2 6 11
Reclassification to earnings (net of tax effect of $0 and $(1)) (1) (5) (3) (5)
Balance at end of period 7 4 7 4
Current period changes in fair value, tax effect 0 1 1 4
Reclassification to earnings, tax effect 0 (1) (1) (1)
Unrealized gain (loss) on cash flow hedges, net of tax:        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period 215 104 112 40
Current period changes in fair value (net of tax effect of $(53) and $79) (168) 251 33 355
Reclassification to earnings (net of tax effect of $(8) and $(14)) (27) (45) (125) (85)
Balance at end of period 20 310 20 310
Current period changes in fair value, tax effect (53) 79 10 112
Reclassification to earnings, tax effect (8) (14) (39) (27)
Accumulated Defined Benefit Plans Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (4,948) (3,820) (5,035) (3,906)
Remeasurement of plan assets and liabilities (net of tax effect of $0 and $214) (1) 43 43 130 129
Balance at end of period (4,905) (3,777) (4,905) (3,777)
Reclassification to earnings, tax effect 13 14 40 41
Income Tax Expense Benefit [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Reclassification to earnings, tax effect 0 (1) (1) (1)
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 (8) (14) (39) (27)
Net Income [Member] [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Reclassification to earnings (net of tax effect of $0 and $(1)) (1) (5) (3) (5)
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 $(8) and $(14)) $ (27) $ (45) $ (125) $ (85)