Employee Stock Benefit Plans (Tables)

6 Months Ended

Jan. 28, 2012

Employee Stock Benefit Plans [Abstract]

Summary Of Share-Based Compensation Expense

	Three Months Ended					Six Months Ended
	January 28, 2012			January 29, 2011		January 28, 2012			January 29, 2011
Cost of sales – product	$	14		$	16	$	27		$	31
Cost of sales – service		40			48		77			91
Share-based compensation expense in cost of sales		54			64		104			122
Research and development		99			132		200			253
Sales and marketing		149			167		291			331
General and administrative		54			67		102			131
Restructuring and other charges		(2	)		—		(2	)		—
Share-based compensation expense in operating expenses		300			366		591			715
Total share-based compensation expense	$	354		$	430	$	695		$	837

Summary Of Share-Based Awards Available For Grant

	Share- Based Awards Available for Grant
BALANCE AT JULY 31, 2010		295
Restricted stock, stock units, and other share-based awards granted and assumed		(84	)
Share-based awards canceled/forfeited/expired		42
Additional shares reserved		2
BALANCE AT JULY 30, 2011		255
Restricted stock, stock units, and other share-based awards granted and assumed		(68	)
Share-based awards canceled/forfeited/expired		39
Other		(5	)
BALANCE AT JANUARY 28, 2012		221

Summary Of Restricted Stock And Stock Unit Activity

	Restricted Stock/ Stock  Units			Weighted- Average Grant- Date Fair Value per Share		Vest-Date Fair Value in Aggregate
BALANCE AT JULY 31, 2010		97		$	22.35
Granted and assumed		56			20.62
Vested		(27	)		22.54	$	529
Canceled/forfeited		(10	)		22.04
BALANCE AT JULY 30, 2011		116			21.50
Granted and assumed		46			17.56
Vested		(27	)		22.82	$	429
Canceled/forfeited		(12	)		20.55
BALANCE AT JANUARY 28, 2012		123		$	19.83

Summary Of Stock Option Activity

	STOCK OPTIONS OUTSTANDING
	Number Outstanding			Weighted- Average Exercise Price per Share
BALANCE AT JULY 31, 2010		732		$	21.39
Exercised		(80	)		16.55
Canceled/forfeited/expired		(31	)		25.91
BALANCE AT JULY 30, 2011		621			21.79
Assumed from acquisitions		1			1.68
Exercised		(34	)		11.94
Canceled/forfeited/expired		(20	)		23.59
BALANCE AT JANUARY 28, 2012		568		$	22.29

Summary Of Significant Ranges Of Outstanding And Exercisable Stock Options

	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 – 15.00		27		1.99	$	10.45	$	250		26	$	10.67	$	232
15.01 – 18.00		91		2.54		17.75		165		91		17.75		164
18.01 – 20.00		163		1.40		19.29		46		162		19.29		46
20.01 – 25.00		148		3.37		22.75		—		144		22.76		—
25.01 – 35.00		139		4.58		30.64		—		123		30.63		—
Total		568		2.90	$	22.29	$	461		546	$	22.08	$	442