Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Activity in Accumulated Other Comprehensive Income (Loss) (Phantoms) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period     $ (5,997)  
Change in foreign currency translation adjustment, net of tax $ 10 $ (33) (131) $ 20
Balance at end of period (5,933) (4,815) (5,933) (4,815)
Reclassification to earnings, tax effect (1) 0 (1) 0
Foreign currency translation gain (loss):        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period (1,219) (1,073) (1,078) (1,126)
Change in foreign currency translation adjustment, net of tax 10 (33) (131) 20
Balance at end of period (1,209) (1,106) (1,209) (1,106)
Aggregate adjustment for the period, tax (14) (7) (1) 2
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period 6 2 4 (2)
Balance at end of period 9 7 9 7
Current period changes in fair value, tax effect 1 3 1 3
Unrealized gain (loss) on cash flow hedges, net of tax:        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period 329 116 112 40
Balance at end of period 215 104 215 104
Current period changes in fair value, tax effect (20) 5 63 33
Reclassification to earnings, tax effect (16) (9) (31) (13)
Accumulated Defined Benefit Plans Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period (4,992) (3,863) (5,035) (3,906)
Balance at end of period (4,948) (3,820) (4,948) (3,820)
Reclassification to earnings, tax effect $ 13 $ 14 $ 27 $ 27