Stockholders' Equity (Tables)

6 Months Ended

Oct. 30, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Activity Related to Stock Options

The following table summarizes information related to our stock options (in millions, except exercise price and contractual term):

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding as of April 24, 2015		12		$	37.74
Exercised		(1	)	$	22.89
Forfeited and expired		(2	)	$	38.99
Outstanding as of October 30, 2015		9		$	38.90		2.86	$	12
Vested and expected to vest as of October 30, 2015		9		$	38.95		2.76	$	12
Exercisable as of October 30, 2015		7		$	39.54		2.29	$	11

Additional Information Related to Stock Options

Additional information related to our stock options is summarized below (in millions):

	Six Months Ended
	October 30, 2015		October 24, 2014
Intrinsic value of exercises	$	8	$	38
Proceeds received from exercises	$	19	$	65
Fair value of options vested	$	7	$	19

Activity Related to Restricted Stock Units Including Performance-Based Restricted Stock Units

The following table summarizes information related to RSUs, including PBRSUs, (in millions, except for fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value
Outstanding as of April 24, 2015		13		$	36.58
Granted		6		$	31.32
Vested		(4	)	$	37.70
Forfeited		(2	)	$	35.32
Outstanding as of October 30, 2015		13		$	34.13

Number and Value of the Shares Netted for Employee Taxes

The number and value of the shares netted for employee taxes are summarized in the table below (in millions):

	Six Months Ended
	October 30, 2015		October 24, 2014
Shares withheld for taxes		1		1
Fair value of shares withheld	$	44	$	43

Schedule of Employee Stock Purchase Plan (ESPP) Disclosures

The following table summarizes activity related to the purchase rights issued under the ESPP (in millions):

	Six Months Ended
	October 30, 2015		October 24, 2014
Shares issued under the ESPP		2		2
Proceeds from issuance of shares	$	50	$	49

Stock-Based Compensation Expense

Stock-based compensation expense is included in the condensed consolidated statements of operations as follows (in millions):

	Three Months Ended				Six Months Ended
	October 30, 2015		October 24, 2014		October 30, 2015		October 24, 2014
Cost of product revenues	$	1	$	2	$	3	$	3
Cost of hardware maintenance and other services revenues		4		3		10		8
Sales and marketing		26		30		57		57
Research and development		18		22		44		43
General and administrative		10		11		22		19
Total stock-based compensation expense	$	59	$	68	$	136	$	130

Income Tax Effects Associated with Employee Stock Transactions

Total income tax benefit associated with employee stock transactions and recognized in stockholders’ equity were as follows (in millions):

	Six Months Ended
	October 30, 2015		October 24, 2014
Income tax benefit associated with employee stock transactions	$	33	$	58

Summary of Activities Related to Stock Repurchase Program

The following table summarizes activity related to this program for the six months ended October 30, 2015 (in millions, except per share amounts):

Number of shares repurchased		19
Average price per share	$	31.70
Aggregate purchase price	$	613
Remaining authorization at end of period	$	1,847

Summary of Activities Related to Dividends on Common Stock

The following is a summary of our activities related to dividends on our common stock (in millions, except per share amounts):

	Six Months Ended
	October 30, 2015		October 24, 2014
Dividends per share declared	$	0.360	$	0.330
Dividend payments allocated to additional paid-in capital	$	84	$	52
Dividend payments allocated to retained earnings	$	23	$	53

Reconciliation of Retained Earnings

A reconciliation of retained earnings is as follows (in millions):

Balance as of April 24, 2015	$	53
Net income		84
Repurchases of common stock		(114	)
Dividends		(23	)
Balance as of October 30, 2015	$	—

Accumulated Other Comprehensive Income (Loss) by Component Net of Tax

Changes in accumulated other comprehensive income (loss) (AOCI) by component, net of tax, are summarized below (in millions):

	Foreign Currency Translation Adjustments			Defined Benefit Obligation Adjustments			Unrealized Gains (Losses) on Available- for-Sale Securities			Unrealized Gains (Losses) on Derivative Instruments			Total
Balance as of April 24, 2015	$	(23	)	$	(13	)	$	11		$	1		$	(24	)
OCI before reclassifications, net of tax		(2	)		—			(9	)		(3	)		(14	)
Amounts reclassified from AOCI, net of tax		—			2			(1	)		2			3
Total OCI		(2	)		2			(10	)		(1	)		(11	)
Balance as of October 30, 2015	$	(25	)	$	(11	)	$	1		$	—		$	(35	)

Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss)

The amounts reclassified out of AOCI are as follows (in millions):

	Three Months Ended					Six Months Ended
	October 30, 2015			October 24, 2014		October 30, 2015			October 24, 2014
	Amounts Reclassified from AOCI					Amounts Reclassified from AOCI					Statements of Operations Location
Recognized losses on defined benefit     obligations	$	1		$	—	$	2		$	—	Operating expenses
Realized gains on available-for-sale     securities		(1	)		—		(1	)		—	Other income (expense), net
Realized losses on cash flow hedges		1			4		2			6	Net revenues
Total reclassifications	$	1		$	4	$	3		$	6