EARNINGS PER SHARE - Weighted Average Shares used to Calculate EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 27, 2019	Jun. 28, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Basic earnings per share:
Net income									$ 87,579	$ 93,399	$ 428,534
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)									508,774	526,519	529,782
Basic earnings per share (in dollars per share)	$ 0.10	$ 0.22	$ (0.23)	$ 0.09	$ (0.12)	$ (0.09)	$ 0.16	$ 0.22	$ 0.17	$ 0.18	$ 0.81
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)									508,774	526,519	529,782
Weighted-average ordinary share equivalents from stock options and awards (in shares)									3,663	3,551	6,816
Weighted-average ordinary shares and ordinary share equivalents outstanding (in shares)									512,437	530,070	536,598
Diluted earnings per share (in dollars per share)									$ 0.17	$ 0.18	$ 0.80
Share bonus awards
Shares used in computation:
Shares excluded from the computation of diluted earnings per share (in shares)									3,600	6,800	100