INCOME (LOSS) PER COMMON SHARE - Schedule of reconciliations of the numerators and denominators (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator (basic and diluted):
Net income (loss)	$ 278		$ (36)		$ 511	$ 58
Less: Allocation to redeemable noncontrolling interest	1	$ (1)	0	$ 6	0	6
Less: Allocation to unvested restricted stock awards	1		0		2	0
Net income (loss) attributable to common shareholders	$ 276		$ (36)		$ 509	$ 52
Denominator:
Basic common shares (based upon weighted average) (in shares)	231		252		235	254
Add: Stock option dilution (in shares)	2		0		2	2
Diluted common shares (in shares)	233		252		237	256