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EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Net income available for common stockholders $ 741 $ 1,239
Weighted average outstanding shares of common stock used to compute basic earnings per common share (in shares) 120,978 125,005
Shares used to compute diluted earnings per common share (in shares) 121,268 125,564
Basic earnings per common share (in dollars per share) $ 6.13 $ 9.91
Diluted earnings per common share (in dollars per share) $ 6.11 $ 9.87
Number of antidilutive stock options and restricted stock excluded from computation (in shares) 1,165 538
Employee stock options    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Dilutive effect of employee stock options and restricted stock (in shares) 6 34
Restricted stock    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Dilutive effect of employee stock options and restricted stock (in shares) 284 525