Earnings (Loss) Per Common Share (Tables)

3 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of computations for basic and diluted earnings per common share

The computations for basic and diluted earnings or loss per common share are as follows:

	Three Months Ended June 30,
(In millions, except per share amounts)	2021		2020
Income from continuing operations	$	536	$	495
Net income attributable to noncontrolling interests	(47)		(50)
Income from continuing operations attributable to McKesson Corporation	489		445
Loss from discontinued operations, net of tax	(3)		(1)
Net income attributable to McKesson Corporation	$	486	$	444
Weighted-average common shares outstanding:
Basic	156.2		162.0
Effect of dilutive securities:
Stock options	0.1		—
Restricted stock units (1)	1.8		1.2
Diluted	158.1		163.2
Earnings (loss) per common share attributable to McKesson: (2)
Diluted
Continuing operations	$	3.09	$	2.72
Discontinued operations	(0.02)		—
Total	$	3.07	$	2.72
Basic
Continuing operations	$	3.13	$	2.74
Discontinued operations	(0.02)		—
Total	$	3.11	$	2.74

(1)Includes dilutive effect from restricted stock units, performance-based restricted stock units, and performance-based stock units.

(2)Certain computations may reflect rounding adjustments.