SUMMARY OF ACCOUNTING POLICIES - Goodwill (Details) $ in Millions	12 Months Ended
	Mar. 31, 2024 USD ($) reporting_unit	Mar. 31, 2023 USD ($)
Goodwill [Roll Forward]
Balance, beginning of the period	$ 1,139	$ 1,138
Acquisitions		(2)
Divestitures	(1)
Foreign currency translation adjustments	(3)	3
Balance, end of the period	$ 1,135	1,139
Number of reporting units | reporting_unit	6
Nextracker | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff
Goodwill [Roll Forward]
Goodwill	$ 204	204
FAS
Goodwill [Roll Forward]
Balance, beginning of the period	371	371
Acquisitions		0
Divestitures	0
Foreign currency translation adjustments	0	0
Balance, end of the period	371	371
FRS
Goodwill [Roll Forward]
Balance, beginning of the period	768	767
Acquisitions		(2)
Divestitures	(1)
Foreign currency translation adjustments	(3)	3
Balance, end of the period	$ 764	$ 768