Stockholders' Equity (Tables)

12 Months Ended

Mar. 31, 2017

Stockholders' Equity Note [Abstract]

Schedule of shares repurchased over last three years

Information regarding the share repurchase activity over the last three years is as follows:



	Share Repurchases ⁽¹⁾
(In millions, except price per share data)		Total Number of Shares Purchased ^{(2) (3)}	Average Price Paid Per Share		Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs
Balance, March 31, 2014					$	340
Shares repurchased		1.5	$	226.55	(340		)
Balance, March 31, 2015					$	—
Shares repurchase plans authorized
May 2015					500
October 2015					2,000
Shares repurchased		8.7	$	173.64	(1,504		)
Balance, March 31, 2016					$	996
Shares repurchase plans authorized
October 2016					4,000
Shares repurchased		15.5	$	141.16	(2,250		)
Balance, March 31, 2017					$	2,746


(1)	This table does not include shares tendered to satisfy the exercise price in connection with cashless exercises of employee stock options or shares tendered to satisfy tax withholding obligations in connection with employee equity awards.


(2)	All of the shares purchased were part of the publicly announced programs.


(3)	The number of shares purchased reflects rounding adjustments.

Schedule of comprehensive income (loss)

Information regarding other comprehensive income (loss) including noncontrolling interests and redeemable noncontrolling interests, net of tax, by component is as follows:



	Years Ended March 31,
(In millions)	2017			2016			2015
Foreign currency translation adjustments⁽¹⁾
Foreign currency translation adjustments arising during period, net of income tax expense (benefit) of ($1), ($23) and nil ^{(2) (3)}	$	(644	)	$	113		$	(1,845	)
Reclassified to income statement, net of income tax expense of nil, nil and nil⁴⁾	20			—			(10		)
	(624		)	113			(1,855		)
Unrealized gains (losses) on net investment hedges ⁽⁵⁾
Unrealized gains (losses) on net investment hedges arising during period, net of income tax benefit of $5, nil and nil	(8		)	—			—
Reclassified to income statement, net of income tax expense of nil, nil and nil	—			—			—
	(8		)	—			—
Unrealized gains (losses) on cash flow hedges
Unrealized gains (losses) on cash flow hedges arising during period, net of income tax benefit of nil, nil and nil	(19		)	6			(13		)
Reclassified to income statement, net of income tax expense of nil, nil and nil	—			3			3
	(19		)	9			(10		)
Changes in retirement-related benefit plans
Net actuarial gain (loss) and prior service credit (cost) arising during period, net of income tax expense (benefit) of $4, $13 and ($66) ⁽⁶⁾	(20		)	23			(140		)
Amortization of actuarial gain (loss), prior service cost and transition obligation, net of income tax expense (benefit) of $4, $18 and $6 ⁽⁷⁾	9			30			11
Foreign currency translation adjustments and other, net of income tax expense of nil, nil and nil	3			(3		)	4
Reclassified to income statement, net of income tax expense of nil, nil and nil	—			—			1
	(8		)	50			(124		)

Other Comprehensive Income (Loss), net of tax	$	(659	)	$	172		$	(1,989	)


(1)	Foreign currency translation adjustments over the last three years primarily resulted from the conversion of non-U.S. dollar financial statements of our foreign subsidiary, Celesio, into the Company’s reporting currency, U.S. dollars.

(2)

The 2017 net foreign currency translation losses of $644 million were primarily due to the weakening of the Euro and British pound sterling against the U.S. dollar from April 1, 2016 to March 31, 2017. The 2016 net foreign currency translation gains of $113 million were primarily due to the recovery of the Euro against the U.S. dollar, partly offset by the weakening of the Canadian dollar and British pound sterling against the U.S. dollar during the period between April 1, 2015 and March 31, 2016.


(3)	2017 includes net foreign currency translation losses of $74 million and 2016 includes net foreign currency translation gains of $16 million attributable to noncontrolling and redeemable noncontrolling interests.


(4)	These net foreign currency losses were reclassified from accumulated other comprehensive income (loss) to discontinued operations within our consolidated statement of operations due to the Healthcare Technology Net Asset Exchange in 2017 and the sale of a business in 2015.


(5)	2017 includes foreign currency losses of $13 million on the net investment hedges from the €1.2 billion Euro-denominated notes and £450 million British pound sterling-denominated notes.


(6)	The net actuarial losses of $5 million and net gains of $4 million attributable to noncontrolling and redeemable noncontrolling interests in 2017 and 2016.


(7)	Pre-tax amount was reclassified into cost of sales and operating expenses in the consolidated statements of operations. The related tax expense was reclassified into income tax expense in the consolidated statements of operations.

Schedule of accumulated other comprehensive income (loss)

Information regarding changes in our accumulated other comprehensive income (loss) by component are as follows:



(In millions)	Foreign Currency Translation Adjustments, Net of Tax			Unrealized Losses on Net Investment Hedges, Net of Tax			Unrealized Gains (Losses) on Cash Flow Hedges, Net of Tax			Unrealized Net Gains (Losses) and Other Components of Benefit Plans, Net of Tax			Total Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2015	$	(1,420	)	$	—		$	(21	)	$	(272	)	$	(1,713	)
Other comprehensive income (loss) before reclassifications	113			—			6			23			142
Amounts reclassified to earnings	—			—			3			27			30
Other comprehensive income (loss)	$	113		$	—		$	9		$	50		$	172
Less: amounts attributable to noncontrolling and redeemable noncontrolling interests	16			—			—			4			20
Other comprehensive income (loss) attributable to McKesson	$	97		$	—		$	9		$	46		$	152
Balance at March 31, 2016	$	(1,323	)	$	—		$	(12	)	$	(226	)	$	(1,561	)
Other comprehensive income (loss) before reclassifications	(644		)	(8		)	(19		)	(17		)	(688		)
Amounts reclassified to earnings and other	20			—			—			9			29
Other comprehensive income (loss)	$	(624	)	$	(8	)	$	(19	)	$	(8	)	$	(659	)
Less: amounts attributable to noncontrolling and redeemable noncontrolling interests	(74		)	—			—			(5		)	(79		)
Other comprehensive income (loss) attributable to McKesson	$	(550	)	$	(8	)	$	(19	)	$	(3	)	$	(580	)
Balance at March 31, 2017	$	(1,873	)	$	(8	)	$	(31	)	$	(229	)	$	(2,141	)