INTANGIBLE ASSETS INCLUDING GOODWILL - Intangible Assets by Class (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Intangible asset balances by major asset class
Gross Carrying Amount	$ 300		$ 300		$ 283
Accumulated Amortization	(160)		(160)		(138)
Net Carrying Amount	139		139		145
Net carrying amount of intangible assets increased			(6)
Intangible asset amortization expense	10	$ 9	25	$ 19
Capitalized software
Intangible asset balances by major asset class
Gross Carrying Amount	40		40		16
Accumulated Amortization	(16)		(16)		(16)
Net Carrying Amount	24		24		1
Customer relationships
Intangible asset balances by major asset class
Gross Carrying Amount	223		223		229
Accumulated Amortization	(121)		(121)		(100)
Net Carrying Amount	102		102		129
Completed technology
Intangible asset balances by major asset class
Gross Carrying Amount	20		20		20
Accumulated Amortization	(20)		(20)		(20)
Patents/trademarks
Intangible asset balances by major asset class
Gross Carrying Amount	17		17		18
Accumulated Amortization	(4)		(4)		(2)
Net Carrying Amount	$ 13		$ 13		$ 16