EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income available for common stockholders	$ 480	$ 832	$ 1,900	$ 3,030
Weighted average outstanding shares of common stock used to compute basic earnings per common share (in shares)	120,405	123,426	120,609	124,335
Shares used to compute diluted earnings per common share (in shares)	120,764	123,983	120,899	124,885
Basic earnings per common share (in dollars per share)	$ 3.99	$ 6.74	$ 15.76	$ 24.37
Diluted earnings per common share (in dollars per share)	$ 3.98	$ 6.71	$ 15.72	$ 24.26
Number of antidilutive stock options and restricted stock excluded from computation (in shares)	361	137	759	251
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)	3	26	4	31
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)	356	531	286	519