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INCOME TAXES - Schedule of Reconciliation of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income taxes based on domestic statutory rates	$ 174	$ 113	$ 137
Effect of jurisdictional tax rate differential	13	68	52
Change in unrecognized tax benefit	(19)	(10)	(7)
Change in valuation allowance	(37)	(685)	(290)
Foreign exchange movement on prior year taxes recoverable	4	(1)	4
Liability for undistributed earnings	6	135	0
Global intangible low-taxed income (GILTI) / Subpart F income	9	13	18
Nextracker related transactions gains	0	115	158
Earnings from partnership	0	47	39
U.S. state taxes	10	10	2
Excess compensation (Section 162(m))	16	15	9
Other	9	(26)	2
(Benefit from) provision for income taxes	$ 185	$ (206)	$ 124

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