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		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
NET LOSS PER SHARE
Stock dividends declared	$ 0	$ 0	$ 0	$ 0
Net income (loss) on which basic and diluted earnings per share is calculated	$ (43)	$ (142)	$ (32)	$ (283)
Number of shares on which basic earnings (loss) per share is calculated	231.6	229.1	231.1	228.5
Number of shares on which diluted earnings (loss) per share is calculated	231.6	229.1	231.1	228.5
Basic earnings (loss) per share	$ (0.19)	$ (0.62)	$ (0.14)	$ (1.24)
Diluted earnings (loss) per share	$ (0.19)	$ (0.62)	$ (0.14)	$ (1.24)