EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Basic earnings per share:
Net income	$ 208,000	$ 111,000	$ 373,000	$ 39,000
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)	500,000	507,000	500,000	511,000
Basic earnings (losses) per share (in dollars per share)	$ 0.42	$ 0.22	$ 0.75	$ 0.08
Diluted earnings per share:
Net income	$ 208,000	$ 111,000	$ 373,000	$ 39,000
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)	500,000	507,000	500,000	511,000
Weighted-average ordinary share equivalents from stock options and RSU awards (in shares)	8,000	3,000	5,000	4,000
Weighted-average ordinary shares and ordinary share equivalents outstanding (in shares)	508,000	510,000	505,000	515,000
Diluted earnings (losses) per share (in dollars per share)	$ 0.41	$ 0.22	$ 0.74	$ 0.08
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted share unit awards excluded from computation of diluted earnings per share due to their anti-dilutive impact (in shares)		3,700	2,900	4,000