Stockholders' Equity (Tables)

12 Months Ended

Apr. 29, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Activity Related to Stock Options

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

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at April 26, 2013		19		$	31.27
Granted		3		$	38.26
Exercised		(6	)	$	25.83
Forfeited and expired		(1	)	$	42.47
Outstanding as of April 25, 2014		15		$	34.10
Granted		2		$	36.64
Exercised		(5	)	$	25.25
Forfeited and expired		—		$	42.42
Outstanding as of April 24, 2015		12		$	37.74
Assumed in acquisition		2		$	5.20
Exercised		(2	)	$	19.64
Forfeited and expired		(3	)	$	38.27
Outstanding as of April 29, 2016		9		$	34.01		3.52	$	29
Vested and expected to vest as of April 29, 2016		9		$	34.52		3.40	$	26
Exercisable as of April 29, 2016		6		$	39.98		2.22	$	3

Additional Information Related to Stock Options

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

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Intrinsic value of exercises	$	16	$	70	$	91
Proceeds received from exercises	$	27	$	117	$	164
Fair value of options vested	$	15	$	33	$	45

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

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

	Number of Shares			Weighted- Average Grant Date Fair Value
Outstanding at April 26, 2013		13		$	38.36
Granted		6		$	38.61
Vested		(4	)	$	38.48
Forfeited		(2	)	$	39.08
Outstanding as of April 25, 2014		13		$	38.35
Granted		7		$	35.80
Vested		(5	)	$	40.14
Forfeited		(2	)	$	37.48
Outstanding as of April 24, 2015		13		$	36.58
Granted		7		$	29.26
Vested		(5	)	$	37.72
Forfeited		(2	)	$	34.85
Outstanding as of April 29, 2016		13		$	32.46

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):

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Shares withheld for taxes		2		2		1
Fair value of shares withheld	$	50	$	57	$	58

Schedule of Employee Stock Purchase Plan (ESPP) Disclosures

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

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Shares issued under the ESPP		3		3		4
Proceeds from issuance of shares	$	93	$	97	$	95

Stock-Based Compensation Expense

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

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Cost of product revenues	$	5	$	6	$	5
Cost of hardware maintenance and other services revenues		19		16		17
Sales and marketing		110		116		125
Research and development		84		84		88
General and administrative		42		37		38
Total stock-based compensation expense	$	260	$	259	$	273

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):

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Income tax benefit associated with employee stock transactions	$	59	$	57	$	40

Summary of Valuation Assumptions

The valuation of stock options, RSUs and ESPP purchase rights and the underlying weighted-average assumptions are summarized as follows:

	Year Ended
	April 29, 2016			April 24, 2015			April 25, 2014
Stock options:
Expected term in years	N/A				4.8			4.8
Risk-free interest rate	N/A				1.6	%		1.1	%
Expected volatility	N/A				29	%		34	%
Expected dividend yield	N/A				1.8	%		1.6	%
Weighted-average fair value per share granted	N/A			$	8.24		$	9.85
RSUs:
Risk-free interest rate		0.6	%		0.6	%		0.5	%
Expected dividend yield		2.3	%		1.8	%		1.6	%
Weighted-average fair value per share granted	$	29.26		$	35.80		$	38.61
ESPP:
Expected term in years		1.2			1.3			1.2
Risk-free interest rate		0.5	%		0.2	%		0.2	%
Expected volatility		27	%		27	%		31	%
Expected dividend yield		2.3	%		1.8	%		1.6	%
Weighted-average fair value per right granted	$	8.18		$	9.81		$	10.83

N/A - Not applicable. No options were granted in fiscal 2016.

Summary of Activities Related to Stock Repurchase Program

The following table summarizes activity related to this program (in millions, except per share amounts):

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Number of shares repurchased		33		30		47
Average price per share	$	28.80	$	39.30	$	39.78
Aggregate purchase price	$	960	$	1,165	$	1,881
Remaining authorization at end of period	$	1,499	$	2,460	$	1,125

Summary of Activities Related to Dividends on Common Stock

The following is a summary of our fiscal 2016, 2015 and 2014 activities related to dividends on our common stock (in millions, except per share amounts).

	Year Ended
	April 29, 2016		April 24, 2015		April 25, 2014
Dividends per share declared	$	0.72	$	0.66	$	0.60
Dividend payments allocated to additional paid-in capital	$	125	$	52	$	50
Dividend payments allocated to retained earnings	$	85	$	156	$	152

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

Changes in 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 25, 2014	$	5		$	(5	)	$	9		$	—		$	9
OCI before reclassifications, net of tax		(28	)		(8	)		2			15			(19	)
Amounts reclassified from AOCI, net of tax		—			—			—			(14	)		(14	)
Total OCI		(28	)		(8	)		2			1			(33	)
Balance as of April 24, 2015		(23	)		(13	)		11			1			(24	)
OCI before reclassifications, net of tax		4			(5	)		(4	)		(4	)		(9	)
Amounts reclassified from AOCI, net of tax		—			2			(1	)		1			2
Total OCI		4			(3	)		(5	)		(3	)		(7	)
Balance as of April 29, 2016	$	(19	)	$	(16	)	$	6		$	(2	)	$	(31	)

Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss)

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

	Year Ended
	April 29, 2016			April 24, 2015			April 25, 2014
	Amounts Reclassified from AOCI									Statements of Operations Location
Recognized losses on defined benefit     obligations	$	2		$	—		$	—		Operating expenses
Realized gains on available-for-sale     securities		(1	)		—			(1	)	Other income (expense), net
Realized (gains) losses on cash flow hedges		1			(14	)		2		Net revenues
Total reclassifications	$	2		$	(14	)	$	1