Earnings (Loss) Per Common Share (Tables)

9 Months Ended

Dec. 31, 2020

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 December 31,				Nine Months Ended December 31,
(In millions, except per share amounts)	2020		2019		2020		2019
Income (loss) from continuing operations	$	(6,174)	$	247	$	(5,052)	$	54
Net income attributable to noncontrolling interests	(52)		(56)		(152)		(163)
Income (loss) from continuing operations attributable to McKesson Corporation	(6,226)		191		(5,204)		(109)
Loss from discontinued operations, net of tax	—		(5)		(1)		(12)
Net income (loss) attributable to McKesson Corporation	$	(6,226)	$	186	$	(5,205)	$	(121)
Weighted-average common shares outstanding:
Basic	159.5		178.7		161.2		183.1
Effect of dilutive securities:
Restricted stock units	—		1.0		—		—
Diluted	159.5		179.7		161.2		183.1
Earnings (loss) per common share attributable to McKesson: (1)
Diluted
Continuing operations	$	(39.03)	$	1.06	$	(32.28)	$	(0.60)
Discontinued operations	—		(0.03)		(0.01)		(0.06)
Total	$	(39.03)	$	1.03	$	(32.29)	$	(0.66)
Basic
Continuing operations	$	(39.03)	$	1.06	$	(32.28)	$	(0.60)
Discontinued operations	—		(0.02)		(0.01)		(0.06)
Total	$	(39.03)	$	1.04	$	(32.29)	$	(0.66)

(1) Certain computations may reflect rounding adjustments.