Goodwill and Intangible Assets, Net (Tables)

9 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill were as follows:

(In millions)	U.S. Pharmaceutical		Prescription Technology Solutions		Medical-Surgical Solutions		International		Corporate		Total
Balance, March 31, 2024	$	4,123	$	2,024	$	2,536	$	1,449	$	—	$	10,132
Goodwill acquired	—		—		—		—		—		—
Disposals (1)	—		—		—		(47)		—		(47)
Foreign currency translation adjustments, net	—		—		—		(81)		—		(81)
Other adjustments	—		—		(29)		—		29		—
Balance, December 31, 2024	$	4,123	$	2,024	$	2,507	$	1,321	$	29	$	10,004

(1) Goodwill related to the Canadian retail disposal group discussed in Financial Note 2, Business Acquisition and Divestitures

Schedule of Information Regarding Intangible Assets

Information regarding intangible assets was as follows:

	December 31, 2024							March 31, 2024
(Dollars in millions)	Weighted- Average Remaining Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	10	$	1,475	$	(626)	$	849	$	1,830	$	(701)	$	1,129
Service agreements	9	1,116		(714)		402		1,126		(676)		450
Trademarks and trade names	13	377		(270)		107		759		(395)		364
Technology	10	283		(137)		146		284		(125)		159
Other	7	31		(26)		5		34		(26)		8
Total		$	3,282	$	(1,773)	$	1,509	$	4,033	$	(1,923)	$	2,110