NET LOSS PER SHARE - CALCULATION OF BASIC AND DILUTED INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss	$ (392)	$ (1,445)
Less: allocation of earnings to participating securities	0	0
Net loss attributable to common stockholders	(392)	(1,445)
Net loss attributable to common stockholders	$ (392)	$ (1,445)
Weighted-average common stock outstanding - basic (in shares)	867,769,168	230,685,464
Dilutive effect of stock options and unvested shares (in shares)	0	0
Weighted-average common stock outstanding - diluted (in shares)	867,769,168	230,685,464
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ (0.45)	$ (6.26)
Diluted (in dollars per share)	$ (0.45)	$ (6.26)