Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

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SHAREOWNERS' EQUITY - Additional Information (Detail)
$ / shares in Units, $ in Millions
 9 Months Ended
Sep. 30, 2018
USD ($)
option
Vote
Classes_of_Common_Stock
$ / shares
shares
Sep. 30, 2017
USD ($)
shares
May 01, 2016
USD ($)
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    
Common stock authorized for purchase, amount | $     $ 8,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ $ 3,583    
Noncontrolling Interest, Period Increase (Decrease) | $ $ 2 $ 6  
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    
Total of Class A and Class B common stock, repurchased, value | $ $ 0 $ 0  
Common stock purchases | shares 3,000,000 3,000,000  
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    
Total of Class A and Class B common stock, repurchased, value | $ $ 0 $ 0  
Common stock purchases | shares 4,000,000 9,000,000  
Class A and B Common Stock      
Stockholders Equity Note [Line Items]      
Total of Class A and Class B common stock, repurchased, value | $ $ 756 $ 1,352  
Common stock purchases | shares 6,600,000 12,300,000  
Options Held [Member]      
Stockholders Equity Note [Line Items]      
Option premiums received | $ $ 13 $ 53  
Number of options open | option 400,000    
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share | $ / shares $ 98.16