CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 30,346	$ 26,041	$ 24,124
Cost of sales	28,058	24,094	22,349
Restructuring charges	23	15	88
Gross profit	2,265	1,932	1,687
Selling, general and administrative expenses	995	892	817
Intangible amortization	82	68	62
Restructuring charges	4	0	13
Operating income	1,184	972	795
Interest, net	201	152	148
Other charges (income), net	5	(164)	16
Equity in earnings (losses) of unconsolidated affiliates	(4)	61	83
Income before income taxes	974	1,045	714
Provision for (benefit from) income taxes	(59)	105	101
Net income	1,033	940	613
Net income attributable to noncontrolling interest and redeemable noncontrolling interest	240	4	0
Net income attributable to Flex Ltd.	$ 793	$ 936	$ 613
Earnings per share attributable to the shareholders of Flex Ltd.:
Basic (in dollars per share)	$ 1.75	$ 1.97	$ 1.23
Diluted (in dollars per share)	$ 1.72	$ 1.94	$ 1.21
Weighted-average shares used in computing per share amounts:
Basic (in shares)	454	476	499
Diluted (in shares)	462	483	506