CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE NONCONTROLLING INTEREST AND SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Ordinary Shares	Accumulated Deficit	Unrealized Loss on Derivative Instruments and Other	Foreign Currency Translation Adjustments	Total Accumulated Other Comprehensive Loss
Redeemable noncontrolling interests, beginning balance at Mar. 31, 2021	$ 0
Redeemable noncontrolling interests, ending balance at Dec. 31, 2021	0
Beginning balance (in shares) at Mar. 31, 2021		492,000,000
Beginning balance at Mar. 31, 2021	3,436	$ 5,844	$ (2,289)	$ (42)	$ (77)	$ (119)
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost (in shares)		(32,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(580)	$ (580)
Exercise of stock options (in shares)		1,000,000
Issuance of Flex Ltd. vested shares under restricted share unit awards (in shares)		6,000,000
Net income	769		769
Stock-based compensation	69	$ 69
Total other comprehensive income (loss)	(39)			(20)	(19)	(39)
Ending balance (in shares) at Dec. 31, 2021		467,000,000
Ending balance at Dec. 31, 2021	3,655	$ 5,333	(1,520)	(62)	(96)	(158)
Redeemable noncontrolling interests, beginning balance at Oct. 01, 2021	0
Redeemable noncontrolling interests, ending balance at Dec. 31, 2021	0
Beginning balance (in shares) at Oct. 01, 2021		471,000,000
Beginning balance at Oct. 01, 2021	3,514	$ 5,398	(1,747)	(49)	(88)	(137)
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost (in shares)		(5,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(90)	$ (90)
Issuance of Flex Ltd. vested shares under restricted share unit awards (in shares)		1,000,000
Net income	227		227
Stock-based compensation	25	$ 25
Total other comprehensive income (loss)	(21)			(13)	(8)	(21)
Ending balance (in shares) at Dec. 31, 2021		467,000,000
Ending balance at Dec. 31, 2021	3,655	$ 5,333	(1,520)	(62)	(96)	(158)
Redeemable noncontrolling interests, beginning balance at Mar. 31, 2022	78
Increase (Decrease) in Temporary Equity
Net income	19
Redeemable noncontrolling interests, ending balance at Dec. 31, 2022	$ 97
Beginning balance (in shares) at Mar. 31, 2022	460,560,312	461,000,000
Beginning balance at Mar. 31, 2022	$ 4,129	$ 5,664	(1,353)	(66)	(116)	(182)
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost (in shares)		(17,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(293)	$ (293)
Issuance of Flex Ltd. vested shares under restricted share unit awards (in shares)		8,000,000
Net income	651		651
Stock-based compensation	80	$ 80
Total other comprehensive income (loss)	$ (62)			21	(83)	(62)
Ending balance (in shares) at Dec. 31, 2022	451,644,718	452,000,000
Ending balance at Dec. 31, 2022	$ 4,505	$ 5,451	(702)	(45)	(199)	(244)
Redeemable noncontrolling interests, beginning balance at Sep. 30, 2022	90
Increase (Decrease) in Temporary Equity
Net income	7
Redeemable noncontrolling interests, ending balance at Dec. 31, 2022	97
Beginning balance (in shares) at Sep. 30, 2022		454,000,000
Beginning balance at Sep. 30, 2022	4,180	$ 5,464	(932)	(73)	(279)	(352)
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost (in shares)		(2,000,000)
Repurchase of Flex Ltd. ordinary shares at cost	(40)	$ (40)
Net income	230		230
Stock-based compensation	27	$ 27
Total other comprehensive income (loss)	$ 108			28	80	108
Ending balance (in shares) at Dec. 31, 2022	451,644,718	452,000,000
Ending balance at Dec. 31, 2022	$ 4,505	$ 5,451	$ (702)	$ (45)	$ (199)	$ (244)