CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 26,415	$ 28,502	$ 24,633
Cost of sales	24,395	26,503	22,838
Restructuring charges	155	23	15
Gross profit	1,865	1,976	1,780
Selling, general and administrative expenses	922	874	830
Intangible amortization	70	81	60
Restructuring charges	20	4	0
Operating income	853	1,017	890
Interest expense	207	230	166
Interest income	56	30	14
Other charges (income), net	44	6	(165)
Equity in earnings (losses) of unconsolidated affiliates	8	(4)	61
Income from continuing operations before income taxes	666	807	964
(Benefit from) provision for income taxes	(206)	124	92
Net income from continuing operations	872	683	872
Net income from discontinued operations, net of tax	373	350	68
Net income	1,245	1,033	940
Net income attributable to noncontrolling interest and redeemable noncontrolling interest	239	240	4
Net income attributable to Flex Ltd.	$ 1,006	$ 793	$ 936
Earnings per share - basic
Basic earnings per share from continuing operations (in dollars per share)	$ 2.00	$ 1.50	$ 1.83
Basic earnings per share from discontinued operations (in dollars per share)	0.31	0.25	0.14
Basic earnings per share attributable to the shareholders of Flex Ltd (in dollars per share)	2.31	1.75	1.97
Earnings per share - diluted
Diluted earnings per share from continuing operations (in dollars per share)	1.98	1.48	1.81
Diluted earnings per share from discontinued operations (in dollars per share)	0.30	0.24	0.13
Diluted earnings per share attributable to the shareholders of Flex Ltd (in dollars per share)	$ 2.28	$ 1.72	$ 1.94
Weighted-average shares used in computing per share amounts:
Basic (in shares)	435	454	476
Diluted (in shares)	441	462	483