REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 7,471	$ 7,766	$ 14,807	$ 15,113
Point in time
Disaggregation of Revenue [Line Items]
Net sales	6,411	6,897	12,949	13,481
Over time
Disaggregation of Revenue [Line Items]
Net sales	1,060	869	1,858	1,632
Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	7,471	7,766	14,807	15,113
Intersegment eliminations
Disaggregation of Revenue [Line Items]
Net sales	(34)	(10)	(70)	(18)
Intersegment eliminations | Point in time
Disaggregation of Revenue [Line Items]
Net sales	(34)	(10)	(70)	(18)
Intersegment eliminations | Over time
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
FAS | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,618	4,004	7,219	7,995
FAS | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	3,280	3,787	6,716	7,566
FAS | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	338	217	503	429
FRS | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,314	3,299	6,605	6,268
FRS | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	3,144	3,110	6,276	5,900
FRS | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	170	189	329	368
Nextracker | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	573	473	1,053	868
Nextracker | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	21	10	27	33
Nextracker | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 552	$ 463	$ 1,026	$ 835