INTANGIBLE ASSETS INCLUDING GOODWILL - Intangible Assets by Class (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Intangible asset balances by major asset class
Gross Carrying Amount	$ 417		$ 417		$ 353
Accumulated Amortization	(225)		(225)		(182)
Net Carrying Amount	192		192		171
Intangible asset amortization expense	17	$ 11	44	$ 36
Net carrying amount of intangible assets increased			21
Capitalized software
Intangible asset balances by major asset class
Gross Carrying Amount	153		153		83
Accumulated Amortization	(37)		(37)		(15)
Net Carrying Amount	117		117		68
Intangible asset amortization expense	9		21
Customer relationships
Intangible asset balances by major asset class
Gross Carrying Amount	226		226		232
Accumulated Amortization	(160)		(160)		(141)
Net Carrying Amount	66		66		91
Completed technology
Intangible asset balances by major asset class
Gross Carrying Amount	20		20		20
Accumulated Amortization	(20)		(20)		(20)
Patents and trademarks
Intangible asset balances by major asset class
Gross Carrying Amount	17		17		18
Accumulated Amortization	(8)		(8)		(6)
Net Carrying Amount	$ 10		$ 10		$ 13