Earnings Per Common Share (Tables)

3 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of computations for basic and diluted earnings per common share

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

	Quarter Ended June 30,
(In millions, except per share amounts)	2017			2016
Income from continuing operations	$	363		$	673
Net income attributable to noncontrolling interests	(56		)	(18		)
Income from continuing operations attributable to McKesson	307			655
Income (loss) from discontinued operations, net of tax	2			(113		)
Net income attributable to McKesson	$	309		$	542
Weighted average common shares outstanding:
Basic	211			225
Effect of dilutive securities:
Options to purchase common stock	1			1
Restricted stock units	1			2
Diluted	213			228
Earnings (loss) per common share attributable to McKesson: (1)
Diluted
Continuing operations	$	1.44		$	2.88
Discontinued operations	0.01			(0.50		)
Total	$	1.45		$	2.38
Basic
Continuing operations	$	1.46		$	2.91
Discontinued operations	—			(0.50		)
Total	$	1.46		$	2.41

(1) Certain computations may reflect rounding adjustments.