Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

v3.21.2
SHAREOWNERS' EQUITY - Additional Information (Detail)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
Vote
Classes_of_Common_Stock
$ / shares
shares
Jun. 30, 2020
USD ($)
shares
Jun. 30, 2021
USD ($)
Vote
Classes_of_Common_Stock
$ / shares
shares
Jun. 30, 2020
USD ($)
shares
Aug. 31, 2021
USD ($)
May 31, 2016
USD ($)
Stockholders Equity Note [Line Items]            
Classes of Common Stock, Number | Classes_of_Common_Stock 2   2      
Preferred stock, shares authorized | shares 200,000,000   200,000,000      
Preferred stock, par value | $ / shares $ 0.01   $ 0.01      
Preferred stock, issued | shares 0   0      
Common stock authorized for purchase, amount         $ 5,000 $ 8,000
Stock repurchased during period, before timing difference       $ 217    
Total of Class A and Class B common stock, repurchased, value       231    
Payments for Repurchase of Common Stock     $ 0 $ 231    
Share repurchase authorization available $ 2,100   $ 2,100      
Common stock purchases | shares 0 0 0 2,100,000    
Change in non-controlling minority interest $ 5 $ (1) $ 5 $ (3)    
Other Comprehensive Income (Loss), Defined Benefit Plan, Plan Amendments, Reclassification Adjustment from AOCI, before Tax $ 66          
Class A common stock            
Stockholders Equity Note [Line Items]            
Votes per common share | Vote 10   10      
Common stock, par value | $ / shares $ 0.01   $ 0.01      
Common stock, shares authorized | shares 4,600,000,000   4,600,000,000      
Class B common stock            
Stockholders Equity Note [Line Items]            
Votes per common share | Vote 1   1      
Common stock, par value | $ / shares $ 0.01   $ 0.01      
Common stock, shares authorized | shares 5,600,000,000   5,600,000,000      
Net income            
Stockholders Equity Note [Line Items]            
TotalOtherComprehensiveIncomeReclassification, Net of Tax $ (21) 10 $ 2,467 13    
Unrealized gain (loss) on cash flow hedges, net of tax:            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax (1) (16) (4) (31)    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 3 52 13 98    
Unrealized gain (loss) on cash flow hedges, net of tax: | Income tax expense            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax (1) (16) (4) (31)    
Unrealized gain (loss) on cash flow hedges, net of tax: | Net income            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 3 52 13 98    
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]            
Stockholders Equity Note [Line Items]            
Reclassification to earnings (net of tax effect of $_ and $12) (25) (44)        
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Income tax expense            
Stockholders Equity Note [Line Items]            
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax 8 13 (772) 27    
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Net income            
Stockholders Equity Note [Line Items]            
Reclassification to earnings (net of tax effect of $_ and $12) (25) (44) 2,450 (87)    
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Investment income and other            
Stockholders Equity Note [Line Items]            
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax (36) (57) (71) (114)    
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax     3,290 0    
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Other expenses            
Stockholders Equity Note [Line Items]            
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax 69 0 69 0    
Other Comprehensive Income (Loss), Defined Benefit Plan, Plan Amendments, Reclassification Adjustment from AOCI, before Tax (66) 0 (66) 0    
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]            
Stockholders Equity Note [Line Items]            
Reclassification to earnings, tax effect 0 (1) 0 (1)    
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 1 2 4 2    
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Income tax expense            
Stockholders Equity Note [Line Items]            
Reclassification to earnings, tax effect 0 (1) 0 (1)    
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Net income            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 1 2 4 2    
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Investment income and other            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax 1 3 4 3    
Foreign Exchange Contracts | Unrealized gain (loss) on cash flow hedges, net of tax: | Revenue            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax 7 71 22 135    
Interest Contracts | Unrealized gain (loss) on cash flow hedges, net of tax: | Interest expense            
Stockholders Equity Note [Line Items]            
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax $ (3) $ (3) $ (5) $ (6)