Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Activity in Accumulated Other Comprehensive Income (Loss) (Phantoms) (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance at beginning of period $ (5,997)  
Change in foreign currency translation adjustment, net of tax (141) $ 53
Balance at end of period (5,876) (4,818)
Foreign currency translation gain (loss):    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance at beginning of period (1,078) (1,126)
Change in foreign currency translation adjustment, net of tax (141) 53
Balance at end of period (1,219) (1,073)
Aggregate adjustment for the period, tax 13 9
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance at beginning of period 4 (2)
Balance at end of period 6 2
Current period changes in fair value, tax effect 0 0
Unrealized gain (loss) on cash flow hedges, net of tax:    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance at beginning of period 112 40
Balance at end of period 329 116
Current period changes in fair value, tax effect 83 28
Reclassification to earnings, tax effect (15) (4)
Accumulated Defined Benefit Plans Adjustment [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balance at beginning of period (5,035) (3,906)
Balance at end of period (4,992) (3,863)
Reclassification to earnings, tax effect $ 14 $ 13