Employee Benefit Plans (Tables)

6 Months Ended

Jan. 28, 2017

Compensation and Retirement Disclosure [Abstract]

Summary Of Share-Based Compensation Expense

Share-based compensation expense consists primarily of expenses for stock options, stock purchase rights, restricted stock, and RSUs granted to employees. The following table summarizes share-based compensation expense (in millions):

	Three Months Ended					Six Months Ended
	January 28, 2017		January 23, 2016			January 28, 2017		January 23, 2016
Cost of sales—product	$	19	$	16		$	40	$	29
Cost of sales—service	34		35			67		73
Share-based compensation expense in cost of sales	53		51			107		102
Research and development	129		107			255		221
Sales and marketing	125		126			265		265
General and administrative	45		47			94		104
Restructuring and other charges	—		(1		)	3		14
Share-based compensation expense in operating expenses	299		279			617		604
Total share-based compensation expense	$	352	$	330		$	724	$	706
Income tax benefit for share-based compensation	$	102	$	103		$	207	$	198

Summary Of Share-Based Awards Available For Grant

A summary of share-based awards available for grant is as follows (in millions):

	Share-Based Awards Available for Grant
BALANCE AT JULY 25, 2015	276
Restricted stock, stock units, and other share-based awards granted	(96	)
Share-based awards canceled/forfeited/expired	30
Shares withheld for taxes and not issued	30
Other	2
BALANCE AT JULY 30, 2016	242
Restricted stock, stock units, and other share-based awards granted	(43	)
Share-based awards canceled/forfeited/expired	69
Shares withheld for taxes and not issued	20
BALANCE AT JANUARY 28, 2017	288

Summary Of Restricted Stock And Stock Unit Activity

A summary of the restricted stock and stock unit activity, which includes time-based and performance-based or market-based RSUs, is as follows (in millions, except per-share amounts):

	Restricted Stock/ Stock Units		Weighted-Average Grant Date Fair Value per Share		Aggregate Fair  Value
UNVESTED BALANCE AT JULY 25, 2015	143		$	22.08
Granted and assumed	70		25.69
Vested	(54	)	20.68		$	1,428
Canceled/forfeited	(14	)	22.86
UNVESTED BALANCE AT JULY 30, 2016	145		24.26
Granted and assumed	29		28.17
Vested	(39	)	22.18		$	1,210
Canceled/forfeited	(11	)	24.99
UNVESTED BALANCE AT JANUARY 28, 2017	124		$	25.76

Summary Of Stock Option Activity

A summary of the stock option activity is as follows (in millions, except per-share amounts):

	STOCK OPTIONS OUTSTANDING
	Number Outstanding		Weighted-Average Exercise Price per Share
BALANCE AT JULY 25, 2015	103		$	28.68
Assumed from acquisitions	18		5.17
Exercised	(32	)	19.22
Canceled/forfeited/expired	(16	)	30.01
BALANCE AT JULY 30, 2016	73		26.78
Assumed from acquisitions	1		1.59
Exercised	(6	)	17.43
Canceled/forfeited/expired	(55	)	31.95
BALANCE AT JANUARY 28, 2017	13		$	8.23

Summary Of Significant Ranges Of Outstanding And Exercisable Stock Options

The following table summarizes significant ranges of outstanding and exercisable stock options as of January 28, 2017 (in millions, except years and share prices):

	STOCK OPTIONS OUTSTANDING						STOCK OPTIONS EXERCISABLE
Range of Exercise Prices	Number Outstanding	Weighted- Average Remaining Contractual Life (in Years)	Weighted- Average Exercise Price per Share		Aggregate Intrinsic Value		Number Exercisable	Weighted- Average Exercise Price per Share		Aggregate Intrinsic Value
$   0.01 – 20.00	11	6.5	$	5.84	$	280	4	$	5.73	$	120
$ 20.01 – 25.00	1	0.1	23.41		3		1	23.41		2
$ 25.01 – 30.00	1	0.4	25.55		7		1	25.55		7
Total	13	5.8	$	8.23	$	290	6	$	10.55	$	129

Schedule of Assumptions Used

The assumptions for the valuation of time-based RSUs and PRSUs are summarized as follows:

	RESTRICTED STOCK UNITS						PERFORMANCE BASED RESTRICTED STOCK UNITS
Three Months Ended	January 28, 2017			January 23, 2016			January 28, 2017			January 23, 2016
Number of shares granted (in millions)	15			27			3			1
Grant date fair value per share	$	27.68		$	25.25		$	27.90		$	25.32
Weighted-average assumptions/inputs:
Expected dividend yield	3.4		%	3.1		%	3.4		%	3.1		%
Range of risk-free interest rates	0.0% – 1.5%			0.1% – 1.2%			0.3% – 1.5%			0.0% – 1.2%
Range of expected volatilities for index	N/A			N/A			N/A			15.3% – 54.3%

	RESTRICTED STOCK UNITS						PERFORMANCE BASED RESTRICTED STOCK UNITS
Six Months Ended	January 28, 2017			January 23, 2016			January 28, 2017			January 23, 2016
Number of shares granted (in millions)	23			36			6			5
Grant date fair value per share	$	27.96		$	24.93		$	28.78		$	24.71
Weighted-average assumptions/inputs:
Expected dividend yield	3.4		%	3.1		%	3.4		%	3.2		%
Range of risk-free interest rates	0.0% – 1.5%			0.0% – 1.2%			0.1% – 1.5%			0.0% – 1.2%
Range of expected volatilities for index	N/A			N/A			16.7% – 46.8%			15.3% – 54.3%