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STOCKHOLDERS' EQUITY - Additional Information (Details)
$ / shares in Units, shares in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
$ / shares
Jun. 30, 2020
$ / shares
Mar. 31, 2020
USD ($)
employee
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
$ / shares
Oct. 31, 2020
USD ($)
Nov. 30, 2018
USD ($)
Feb. 28, 2018
USD ($)
Nov. 30, 2016
USD ($)
Jul. 31, 2012
USD ($)
Stockholders Equity Note [Line Items]                    
Number of employees affected | employee     123              
Cash dividends declared per common share (in dollars per share) | $ / shares $ 0.28 $ 0.245   $ 0.525 $ 0.465          
Stock repurchase program, authorized amount                   $ 2,000,000,000.0
Stock repurchase program, additional authorized amount           $ 1,500,000,000 $ 2,000,000,000.0 $ 1,500,000,000 $ 1,500,000,000  
Purchases of treasury stock (in shares) | shares       7.3            
Stock repurchase program, liability $ 35,000,000     $ 35,000,000            
Remaining value available under stock repurchase programs $ 1,300,000,000     $ 1,300,000,000            
Employee Stock Option                    
Stockholders Equity Note [Line Items]                    
Incremental compensation cost     $ 8,000,000              
Restricted Stock Units (RSUs)                    
Stockholders Equity Note [Line Items]                    
Vesting percentage       33.33%