EQUITY COMPENSATION PLANS - Stock Options (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Stock incentive and option plans
Stock option expiration period	10 years
Stock option vesting period	3 years
SHARES
Outstanding, beginning of year (in shares)	9,042,320	10,516,633	11,380,013
Granted (in shares)	931,750	879,862	1,202,314
Exercised (in shares)	(2,733,130)	(2,270,374)	(1,942,192)
Canceled (in shares)	(91,660)	(83,801)	(123,502)
Separation of ChampionX	(346,865)
Outstanding, end of year (in shares)	6,802,415	9,042,320	10,516,633
Exercisable, end of year (in shares)	5,051,927	7,048,422	7,993,297
Vested and expected to vest, end of year (in shares)	6,697,614
AVERAGE PRICE PER SHARE
Outstanding, beginning of year (in dollars per share)	$ 121.72	$ 108.28	$ 95.76
Granted (in dollars per share)	220.95	184.31	158.23
Exercised (in dollars per share)	97.52	82.93	64.63
Canceled (in dollars per share)	166.67	143.08	127.02
Separation of ChampionX (in dollars per share)	126.37
Outstanding, end of year (in dollars per share)	144.20	121.72	108.28
Exercisable, end of year (in dollars per share)	125.08	$ 109.34	$ 97.13
Vested and expected to vest, end of year (in dollars per shares)	$ 143.25
Total intrinsic value of options exercised during period	$ 299	$ 227	$ 161
Total aggregate intrinsic value of in-the-money options outstanding	$ 492
Weighted-average remaining contractual life of options outstanding	6 years 7 months 6 days
Total aggregate intrinsic value of in-the-money options exercisable	$ 458
Weighted-average remaining contractual life of options exercisable	5 years 8 months 12 days
Aggregate intrinsic value of vested and expected to vest options outstanding	$ 491
Weighted-average remaining contractual life of vested and expected to vest options outstanding	6 years 6 months