EARNINGS PER COMMON SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 697	$ 588	$ 1,627	$ 1,416
Weighted average outstanding shares of common stock used to compute basic earnings per common share (in shares)	126,523	128,692	126,730	128,811
Shares used to compute diluted earnings per common share (in shares)	127,084	129,387	127,279	129,469
Basic earnings per common share (in dollars per share)	$ 5.50	$ 4.57	$ 12.83	$ 11.00
Diluted earnings per common share (in dollars per share)	$ 5.48	$ 4.55	$ 12.77	$ 10.94
Number of antidilutive stock options and restricted stock excluded from computation (in shares)	98	103	362	317
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)	47	74	44	63
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)	514	621	505	595