INTANGIBLE ASSETS INCLUDING GOODWILL (Tables)

6 Months Ended

Sep. 30, 2023

INTANGIBLE ASSETS INCLUDING GOODWILL

Intangible asset balances by major asset class

	At September 30, 2023						At March 31, 2023
	Gross Carrying		Accumulated		Net Carrying		Gross Carrying		Accumulated		Net Carrying
(Dollars in millions)	Amount		Amortization		Amount		Amount		Amortization		Amount
Capitalized software	$	137	$	(28)	$	109	$	83	$	(15)	$	68
Customer relationships*		221		(152)		70		232		(141)		91
Completed technology		20		(20)		—		20		(20)		—
Patents and trademarks*		17		(7)		10		18		(6)		13
Total	$	394	$	(206)	$	188	$	353	$	(182)	$	171

* Amounts include effects from foreign currency translation.

Intangible assets, future amortization expense

	Capitalized		Customer		Patents and
(Dollars in millions)	Software		Relationships		Trademarks		Total
Year ending March 31:
2024 (remaining six months)	$	17	$	13	$	1	$	31
2025		35		21		3		59
2026		33		18		3		54
2027		24		15		2		42
2028		—		1		—		1
Thereafter		—		1		—		1

Changes in goodwill balances by reportable segment

			Additions and
(Dollars in millions)	Balance at		Other		Balance at
Segment	March 31, 2023		Adjustments*		September 30, 2023
United States	$	—	$	—	$	—
Japan		495		(6)		489
Principal Markets		142		—		142
Strategic Markets		176		—		176
Total	$	812	$	(6)	$	806

* Primarily driven by foreign currency translation.