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INCOME PER COMMON SHARE - Narrative (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Oct. 20, 2022
Earnings Per Share [Abstract]          
Stock repurchase program, authorized amount         $ 2,000
Repurchase and retirement of common stock (in shares)     1.6    
Stock repurchased during period     $ 81    
Payments for repurchase of common stock     $ 81 $ 914  
Repurchase and retirement of common stock to offset the dilutive impact of the grant of long-term stock awards (in shares)     0.2    
Remaining authorized repurchase amount $ 1,900   $ 1,900    
Cash dividends per common share paid (in dollars per share) $ 0.285 $ 0.280 $ 0.570 $ 0.560