EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income available for common stockholders	$ 1,239	$ 930
Weighted average outstanding shares of common stock used to compute basic earnings per common share (in shares)	125,005	126,938
Shares used to compute diluted earnings per common share (in shares)	125,564	127,474
Basic earnings per common share (in dollars per share)	$ 9.91	$ 7.32
Diluted earnings per common share (in dollars per share)	$ 9.87	$ 7.29
Number of antidilutive stock options and restricted stock excluded from computation (in shares)	538	626
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)	34	40
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)	525	496