CONSOLIDATED STATEMENTS OF REDEEMABLE NONCONTROLLING INTEREST AND SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Total Flex Ltd. Shareholders' Equity	Ordinary Shares	Accumulated Earnings (Deficit)	Unrealized Gains (Loss) on Derivative Instruments And Other	Foreign Currency Translation Adjustments	Total Accumulated Other Comprehensive Loss	Noncontrolling Interest of Discontinued Operations
Redeemable noncontrolling interests, beginning balance at Mar. 31, 2021	$ 0
Increase (Decrease) in Temporary Equity
Sale of subsidiary's redeemable preferred units, net of transaction cost	74
Net income	4
Redeemable noncontrolling interests, ending balance at Mar. 31, 2022	78
Beginning balance (in shares) at Mar. 31, 2021			492,000,000
Beginning balance at Mar. 31, 2021	3,436	$ 3,436	$ 5,844	$ (2,289)	$ (42)	$ (77)	$ (119)	$ 0
Increase (Decrease) in Shareholders' Equity
Sale of subsidiary's redeemable preferred units, net of transaction cost	414	414	$ 414
Repurchase of Flex Ltd. ordinary shares at cost (in shares)			(38,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(686)	(686)	$ (686)
Exercise of stock options (in shares)			1,000,000
Exercise of stock options	1	1	$ 1
Issuance of Flex Ltd. vested shares under share bonus awards (in shares)			6,000,000
Net income	936	936		936
Stock-based compensation	91	91	$ 91
Total other comprehensive gains (loss)	(63)	(63)			(24)	(39)	(63)
Ending balance (in shares) at Mar. 31, 2022			461,000,000
Ending balance at Mar. 31, 2022	4,129	4,129	$ 5,664	(1,353)	(66)	(116)	(182)	0
Increase (Decrease) in Temporary Equity
Net income	43
Issuance of Nextracker common stock and related transactions	(99)
Payment for pre-IPO dividend to redeemable noncontrolling interest	(22)
Redeemable noncontrolling interests, ending balance at Mar. 31, 2023	0
Increase (Decrease) in Shareholders' Equity
Issuance of Nextracker common stock and related transactions	802	644	$ 644					158
Repurchase of Flex Ltd. ordinary shares at cost (in shares)			(20,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(337)	(337)	$ (337)
Issuance of Flex Ltd. vested shares under share bonus awards (in shares)			9,000,000
Issuance of Flex Ltd. vested shares under restricted share unit awards	1	1	$ 1
Net income	990	793		793				197
Stock-based compensation	133	133	$ 133
Total other comprehensive gains (loss)	$ (12)	(12)			52	(64)	(12)
Ending balance (in shares) at Mar. 31, 2023	450,122,691		450,000,000
Ending balance at Mar. 31, 2023	$ 5,706	5,351	$ 6,105	(560)	(14)	(180)	(194)	355
Redeemable noncontrolling interests, ending balance at Mar. 31, 2024	0
Increase (Decrease) in Shareholders' Equity
Issuance of Nextracker common stock and related transactions	493	607	$ 607					(114)
Repurchase of Flex Ltd. ordinary shares at cost (in shares)			(51,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(1,298)	(1,298)	$ (1,298)
Issuance of Flex Ltd. vested shares under share bonus awards (in shares)			9,000,000
Spin-off of Nextracker	(972)	(492)	$ (492)					(480)
Net income	1,245	1,006		1,006				239
Stock-based compensation	152	152	$ 152
Total other comprehensive gains (loss)	$ (1)	(1)			18	(19)	(1)
Ending balance (in shares) at Mar. 31, 2024	408,101,772		408,000,000
Ending balance at Mar. 31, 2024	$ 5,325	$ 5,325	$ 5,074	$ 446	$ 4	$ (199)	$ (195)	$ 0