Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

v3.21.1
SHAREOWNERS' EQUITY - Additional Information (Detail)
$ / shares in Units, $ in Millions
 3 Months Ended
Mar. 31, 2021
USD ($)
Vote
Classes_of_Common_Stock
$ / shares
shares
Mar. 31, 2020
USD ($)
shares
May 31, 2016
USD ($)
Stockholders Equity Note [Line Items]      
Classes of Common Stock, Number | Classes_of_Common_Stock 2    
Preferred stock, shares authorized | shares 200,000,000    
Preferred stock, par value | $ / shares $ 0.01    
Preferred stock, issued | shares 0    
Payments for Repurchase of Common Stock $ 0 $ 220  
Common stock authorized for purchase, amount     $ 8,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount 2,100    
Change in non-controlling minority interest $ 0 (2)  
Class A common stock      
Stockholders Equity Note [Line Items]      
Votes per common share | Vote 10    
Common stock, par value | $ / shares $ 0.01    
Common stock, shares authorized | shares 4,600,000,000    
Class B common stock      
Stockholders Equity Note [Line Items]      
Votes per common share | Vote 1    
Common stock, par value | $ / shares $ 0.01    
Common stock, shares authorized | shares 5,600,000,000    
Class A and B Common Stock      
Stockholders Equity Note [Line Items]      
Total of Class A and Class B common stock, repurchased, value   $ 217  
Common stock purchases | shares 0 2,100,000  
Net Income [Member] [Member]      
Stockholders Equity Note [Line Items]      
TotalOtherComprehensiveIncomeReclassification, Net of Tax $ 2,488 $ 3  
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 (3) (15)  
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 10 46  
Unrealized gain (loss) on cash flow hedges, net of tax: | Income Tax Expense Benefit [Member]      
Stockholders Equity Note [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax (3) (15)  
Unrealized gain (loss) on cash flow hedges, net of tax: | Net Income [Member] [Member]      
Stockholders Equity Note [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax 10 46  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]      
Stockholders Equity Note [Line Items]      
Reclassification to earnings (net of tax effect of $_ and $12) 2,475 (43)  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Income Tax Expense Benefit [Member]      
Stockholders Equity Note [Line Items]      
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax (780) 14  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Net Income [Member] [Member]      
Stockholders Equity Note [Line Items]      
Reclassification to earnings (net of tax effect of $_ and $12) 2,475 (43)  
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 (35) (57)  
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]      
Stockholders Equity Note [Line Items]      
Reclassification to earnings, tax effect 0 0  
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 3 0  
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Income Tax Expense Benefit [Member]      
Stockholders Equity Note [Line Items]      
Reclassification to earnings, tax effect 0 0  
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] | Net Income [Member] [Member]      
Stockholders Equity Note [Line Items]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax 3 0  
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 3 0  
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 15 64  
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 $ (2) $ (3)