EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income available for common stockholders	$ 2,489	$ 2,806	$ 2,933
Weighted-average outstanding shares of common stock used to compute basic earnings per common share (in shares)	123,866	126,419	128,688
Shares used to compute diluted earnings per common share (in shares)	124,441	127,094	129,396
Basic earnings per common share (in dollars per share)	$ 20.09	$ 22.20	$ 22.79
Diluted earnings per common share (in dollars per share)	$ 20.00	$ 22.08	$ 22.67
Number of antidilutive stock options and restricted stock awards excluded from computation (in shares)	207	205	216
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)	32	50	64
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)	543	625	644