REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Oct. 01, 2021	Sep. 30, 2022	Oct. 01, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 7,766	$ 6,229	$ 15,113	$ 12,571
Point in time
Disaggregation of Revenue [Line Items]
Net sales	6,897	5,558	13,481	11,209
Over time
Disaggregation of Revenue [Line Items]
Net sales	869	671	1,632	1,362
Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	7,766	6,229	15,113	12,571
Intersegment eliminations
Disaggregation of Revenue [Line Items]
Net sales	(10)	(12)	(18)	(25)
Intersegment eliminations | Point in time
Disaggregation of Revenue [Line Items]
Net sales	(10)	(12)	(18)	(25)
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	4,004	3,437	7,995	6,869
FAS | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	3,787	3,250	7,566	6,498
FAS | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	217	187	429	371
FRS | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,299	2,465	6,268	5,047
FRS | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	3,110	2,308	5,900	4,715
FRS | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	189	157	368	332
Nextracker | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	473	339	868	680
Nextracker | Operating Segments | Point in time
Disaggregation of Revenue [Line Items]
Net sales	10	12	33	21
Nextracker | Operating Segments | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 463	$ 327	$ 835	$ 659