EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 338	$ 272	$ 212
Weighted average shares of common stock outstanding, basic (in shares)	66	67	70
Basic (in dollars per share)	$ 5.13	$ 4.03	$ 3.04
Net income	$ 338	$ 272	$ 212
Weighted average shares of common stock outstanding, basic (in shares)	66	67	70
Dilutive effect of stock options and restricted stock units (in shares)	1	1	1
Weighted average shares of common stock outstanding (in shares)	67	68	71
Diluted (in dollars per share)	$ 5.07	$ 3.99	$ 2.99
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect (in shares)	1	1	1