CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Ordinary Shares	Accumulated Deficit	Unrealized Gain (Loss) on Derivative Instruments and Other	Foreign Currency Translation Adjustments	Total Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Mar. 31, 2018		528,078,000
Beginning balance at Mar. 31, 2018	$ 3,018,573	$ 6,248,532	$ (3,144,114)	$ (35,746)	$ (50,099)	$ (85,845)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		44,000
Exercise of stock options	45	$ 45
Issuance of Flex Ltd. vested shares under restricted share unit awards (in shares)		4,614,000
Net income	116,035		116,035
Stock-based compensation, net of tax	20,952	$ 20,952
Total other comprehensive income (loss)	(84,989)			(40,903)	(44,086)	(84,989)
Ending balance (in shares) at Jun. 29, 2018		532,736,000
Ending balance at Jun. 29, 2018	$ 3,109,319	$ 6,269,529	(2,989,376)	(76,649)	(94,185)	(170,834)
Beginning balance (in shares) at Mar. 31, 2019	516,548,265	516,548,000
Beginning balance at Mar. 31, 2019	$ 2,972,360	$ 6,135,535	(3,012,012)	(41,556)	(109,607)	(151,163)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of Flex Ltd. ordinary shares at cost (in shares)		(5,025,000)
Repurchase of Flex Ltd. ordinary shares at cost	(51,999)	$ (51,999)
Exercise of stock options (in shares)		117,000
Exercise of stock options	403	$ 403
Issuance of Flex Ltd. vested shares under restricted share unit awards (in shares)		2,399,000
Net income	44,872		44,872
Stock-based compensation, net of tax	15,227	$ 15,227
Total other comprehensive income (loss)	$ (1,071)			(5,475)	4,404	(1,071)
Ending balance (in shares) at Jun. 28, 2019	514,039,169	514,039,000
Ending balance at Jun. 28, 2019	$ 3,001,815	$ 6,099,166	$ (2,945,117)	$ (47,031)	$ (105,203)	$ (152,234)