Stockholders Equity - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	6 Months Ended	113 Months Ended	1 Months Ended	6 Months Ended
	Oct. 26, 2012	Oct. 26, 2012	Nov. 30, 2012 Repurchase of equity additional amount	Oct. 26, 2012 Additional Paid-in Capital	Oct. 26, 2012 Retained Earnings	Oct. 26, 2012 Stock Options	Oct. 26, 2012 Restricted Stock Units	Oct. 26, 2012 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to options, total						$ 68,600,000	$ 379,100,000	$ 63,500,000
Unrecognized compensation expense will be amortized on a straight-line basis over a weighted-average remaining period, in years						2 years 3 months 18 days	2 years 9 months 18 days	1 year 7 months 6 days
Percentage of discount from quoted market price, employees entitled to buy shares (ESPP)	15.00%
Repurchase and retirement of common stock, shares	10.9
Average price of common stock repurchased under repurchase program	$ 31.86	$ 29.84
Aggregate purchase price of common stock authorized under repurchase program	348,300,000	3,900,000,000		104,600,000	243,700,000
Cumulative Shares Repurchased		129.9
Stock repurchase program, authorized amount		4,000,000,000	1,500,000,000
Stock repurchase program, remaining authorized amount		$ 100,000,000