EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (Numerator)
Net (loss) income									$ (326)	$ (2,429)	$ 105
Net income attributable to the redeemable noncontrolling interests									(18)	(56)	(48)
Net (income) loss attributable to the noncontrolling interests									(70)	71	(10)
Numerator for basic and diluted earnings per common share available to common shareholders									(414)	(2,414)	47
Numerator for basic earnings per common share available to common shareholders	$ (89)	$ 19	$ (332)	$ (12)	$ 467	$ (3,256)	$ 252	$ 123	$ (414)	$ (2,414)	$ 47
Shares (Denominator)
Weighted average common shares outstanding (in shares)									75,050	79,924	92,015
Dilutive effect of outstanding stock settled appreciation rights and stock options (in shares)									0	0	1,170
Weighted-average common and common equivalent shares outstanding (in shares)									75,050	79,924	93,185
Antidilutive Securities Excluded from Computation
Antidilutive dilutive securities excluded from calculation of diluted earnings per share (in shares)									1,973	3,288	238