Redeemable Noncontrolling Interests and Noncontrolling Interests (Tables)

12 Months Ended

Mar. 31, 2023

Noncontrolling Interest [Abstract]

Schedule of Changes in Noncontrolling Interest

Changes in redeemable noncontrolling interests and noncontrolling interests for the years ended March 31, 2023, 2022, and 2021 were as follows:

(In millions)	Noncontrolling Interests		Redeemable Noncontrolling Interests
Balance, March 31, 2020	$	217	$	1,402
Net income attributable to noncontrolling interests	156		43
Other comprehensive loss	—		(79)
Payments to noncontrolling interests	(177)		—
Reclassification of recurring compensation to other accrued liabilities	—		(43)
Exercises of Put Right	—		(49)
Other	—		(3)
Balance, March 31, 2021	196		1,271
Net income attributable to noncontrolling interests	165		8
Other comprehensive income (loss)	(4)		3
Payments to noncontrolling interests	(155)		—
Reclassification of recurring compensation to other accrued liabilities	(7)		(8)
Exercises of Put Right	—		(983)
Reclassification of McKesson Europe redeemable noncontrolling interests	287		(287)
Other	(2)		(4)
Balance, March 31, 2022	480		—
Net income attributable to noncontrolling interests	162		—
Other comprehensive income	44		—
Payments to noncontrolling interests	(150)		—
Reclassification of recurring compensation to other accrued liabilities	(5)		—
Formation of SCRI Oncology	225		—
Derecognition of noncontrolling interests in McKesson Europe	(382)		—
Other	(7)		—
Balance, March 31, 2023	$	367	$	—