Schedule of Assets and Liabilities Measured at Fair Value as Reported in Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 23, 2012	Jun. 24, 2012
Financial Instruments [Line Items]
Cash Equivalents	$ 1,176,646	$ 1,325,361
Short-Term Investments	1,312,767	1,297,931
Restricted Cash and Investments	164,885	164,885
Prepaid Expenses and Other Current Assets	2,698	5,020
Other Assets	25,293	23,667
Total Assets	2,682,289	2,816,864
Accrued Expenses and Other Current Liabilities	2,607	4,328
Other Non-current Liabilities	383	201
Total Liabilities	2,990	4,529
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Instruments [Line Items]
Cash Equivalents	1,175,847	1,318,812
Short-Term Investments	179,213	130,624
Restricted Cash and Investments	164,885	164,885
Other Assets	25,293	23,667
Total Assets	1,545,238	1,637,988
Significant Other Observable Inputs (Level 2)
Financial Instruments [Line Items]
Cash Equivalents	799	6,549
Short-Term Investments	1,133,554	1,167,307
Prepaid Expenses and Other Current Assets	2,698	5,020
Total Assets	1,137,051	1,178,876
Accrued Expenses and Other Current Liabilities	2,607	4,328
Total Liabilities	2,607	4,328
Significant Unobservable Inputs (Level 3)
Financial Instruments [Line Items]
Other Non-current Liabilities	383	201
Total Liabilities	$ 383	$ 201