SEGMENT REPORTING (Details) $ in Millions	3 Months Ended
	Jun. 28, 2024 USD ($) segment	Jun. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	2
Number of reporting segments | segment	2
Net sales	$ 6,314	$ 6,892
Operating income	233	215
Intangible amortization	16	20
Stock-based compensation	32	32
Restructuring charges	25
Interest expense	56	56
Interest income	16	16
Other charges (income), net	1	11
Income from continuing operations before income taxes	192	164
Operating Segments
Segment Reporting Information [Line Items]
Net sales	6,314	6,892
Operating income	306	293
Operating Segments | Flex Agility Solutions
Segment Reporting Information [Line Items]
Net sales	3,365	3,601
Operating income	179	146
Operating Segments | Flex Reliability Solutions
Segment Reporting Information [Line Items]
Net sales	2,949	3,291
Operating income	147	165
Corporate and Other
Segment Reporting Information [Line Items]
Operating income	(20)	(18)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Intangible amortization	16	20
Stock-based compensation	32	32
Restructuring charges	25	23
Legal and other	0	3
Interest expense	56	56
Interest income	16	16
Other charges (income), net	$ 1	$ 11