EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income available for common stockholders	$ 679	$ 959	$ 1,420	$ 2,198
Weighted average outstanding shares of common stock used to compute basic earnings per common share (in shares)	120,445	124,574	120,712	124,790
Shares used to compute diluted earnings per common share (in shares)	120,665	125,109	120,967	125,336
Basic earnings per common share (in dollars per share)	$ 5.63	$ 7.70	$ 11.76	$ 17.62
Diluted earnings per common share (in dollars per share)	$ 5.62	$ 7.66	$ 11.74	$ 17.54
Number of antidilutive stock options and restricted stock excluded from computation (in shares)	751	78	958	308
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)	1	34	4	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)	219	501	251	512