SEGMENT REPORTING (Details) $ in Millions	3 Months Ended
Jul. 01, 2022 USD ($) segment	Jul. 02, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| segment	3
Number of reporting segments \| segment	3
Net sales	$ 7,347	$ 6,342
Operating income	272	255
Intangible amortization	22	15
Stock-based compensation	26	20
Operating Segments
Segment Reporting Information [Line Items]
Net sales	7,347	6,342
Operating Segments \| Flex Agility Solutions
Segment Reporting Information [Line Items]
Net sales	3,991	3,432
Operating income	171	137
Operating Segments \| Flex Reliability Solutions
Segment Reporting Information [Line Items]
Net sales	2,969	2,582
Operating income	147	144
Operating Segments \| Nextracker
Segment Reporting Information [Line Items]
Net sales	395	341
Operating income	30	25
Intersegment eliminations
Segment Reporting Information [Line Items]
Net sales	(8)	(13)
Corporate and Other
Segment Reporting Information [Line Items]
Operating income	(18)	(16)
Operating Segments and Corporate Non Segment
Segment Reporting Information [Line Items]
Operating income	330	290
Segment Reconciling Items
Segment Reporting Information [Line Items]
Intangible amortization	22	15
Stock-based compensation	26	20
Legal and other	$ 10	$ 0

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