Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

v3.20.4
SHAREOWNERS' EQUITY - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2020
USD ($)
Classes_of_Common_Stock
Vote
$ / shares
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
May 31, 2016
USD ($)
Stockholders Equity Note [Line Items]        
Classes of common stock | Classes_of_Common_Stock 2      
Preferred stock, shares authorized 200,000,000      
Preferred stock, par value | $ / shares $ 0.01      
Preferred stock, issued 0      
Common stock purchases, Shares 2,100,000 9,100,000 8,900,000  
Total of class A and class B common stock, repurchased, value | $ $ 217,000,000 $ 1,000,000,000.0 $ 1,000,000,000.0  
Share repurchase authorized amount | $       $ 8,000,000,000.0
Shares outstanding (shares) 1,564,000      
Share repurchase authorization remaining | $ $ 2,100,000,000      
Fair Value, Inputs, Level 3        
Stockholders Equity Note [Line Items]        
Derivative Assets (Liabilities), at Fair Value, Net | $ $ 0 0    
Settled Options        
Stockholders Equity Note [Line Items]        
Option Premiums Received (Paid) | $   $ 21,000,000 $ 34,000,000  
Shares outstanding (shares) 0      
Common Class A [Member]        
Stockholders Equity Note [Line Items]        
Votes per common share | Vote 10      
Common stock, par value | $ / shares $ 0.01      
Common stock, shares authorized 4,600,000,000      
Common Class B [Member]        
Stockholders Equity Note [Line Items]        
Votes per common share | Vote 1      
Common stock, par value | $ / shares $ 0.01      
Common stock, shares authorized 5,600,000,000