NET LOSS PER SHARE - Computation of basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
NET LOSS PER SHARE
Stock dividends declared	$ 0	$ 0
Net income (loss)	$ (229)	$ (494)
Weighted-average shares outstanding during period
Number of shares on which basic earnings per share is calculated	224.4	224.1
Number of shares on which diluted earnings per share is calculated	224.4	224.1
Basic earnings (loss) per share (in dollars per share)	$ (1.02)	$ (2.20)
Diluted earnings (loss) per share (in dollars per share)	$ (1.02)	$ (2.20)
Shares distributed on separation date	224.1