EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2023	Jul. 01, 2022
Basic earnings per share attributable to the shareholders of Flex Ltd.
Net income	$ 211	$ 195
Net income attributable to noncontrolling interest and redeemable noncontrolling interest	25	6
Net income attributable to Flex Ltd.	$ 186	$ 189
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)	447.0	458.0
Basic earnings per share (in dollars per share)	$ 0.42	$ 0.41
Diluted earnings per share attributable to the shareholders of Flex Ltd.
Net income	$ 211	$ 195
Net income attributable to noncontrolling interest and redeemable noncontrolling interest	25	6
Net income attributable to Flex Ltd.	$ 186	$ 189
Shares used in computation:
Weighted-average ordinary shares outstanding (in shares)	447.0	458.0
Weighted-average ordinary share equivalents from RSU awards (in shares)	8.0	10.0
Weighted-average ordinary shares and ordinary share equivalents outstanding (in shares)	455.0	468.0
Diluted earnings per share (in dollars per share)	$ 0.41	$ 0.40
Restricted Stock Units
Shares used in computation:
Restricted share unit awards excluded from computation of diluted earnings per share due to their anti-dilutive impact (in shares)	0.0	5.2