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Cash, Cash Equivalents, Short-Term Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2014
Jun. 29, 2014
Financial Instruments [Line Items]    
Cost $ 3,056,500 $ 3,228,743
Unrealized Gain 6,059 6,551
Unrealized (Loss) (2,024) (1,400)
Estimated Fair Value 3,060,535 3,233,894
Cash and Cash Equivalents 1,293,678 1,452,677
Short-Term Investments 1,593,668 1,612,967
Restricted Cash & Investments 149,483 146,492
Other Assets 23,706 21,758
Fair Value Level 1
    
Financial Instruments [Line Items]    
Cost 1,407,155 1,532,030
Unrealized Gain 3,813 3,152
Unrealized (Loss) (98) (27)
Estimated Fair Value 1,410,870 1,535,155
Cash and Cash Equivalents 1,013,013 1,168,261
Short-Term Investments 230,537 204,549
Restricted Cash & Investments 143,614 140,587
Other Assets 23,706 21,758
Fair Value Level 2
    
Financial Instruments [Line Items]    
Cost 1,362,811 1,411,682
Unrealized Gain 2,246 3,399
Unrealized (Loss) (1,926) (1,373)
Estimated Fair Value 1,363,131 1,413,708
Cash and Cash Equivalents   5,290
Short-Term Investments 1,363,131 1,408,418
Fair Value Level 2 | Municipal Notes And Bonds
    
Financial Instruments [Line Items]    
Cost 252,846 334,329
Unrealized Gain 794 1,108
Unrealized (Loss) (12) (4)
Estimated Fair Value 253,628 335,433
Cash and Cash Equivalents   5,290
Short-Term Investments 253,628 330,143
Fair Value Level 2 | Corporate Notes And Bonds
    
Financial Instruments [Line Items]    
Cost 888,871 874,540
Unrealized Gain 1,194 2,034
Unrealized (Loss) (1,099) (335)
Estimated Fair Value 888,966 876,239
Short-Term Investments 888,966 876,239
Cash
    
Financial Instruments [Line Items]    
Cost 286,534 285,031
Estimated Fair Value 286,534 285,031
Cash and Cash Equivalents 280,665 279,126
Restricted Cash & Investments 5,869 5,905
Time Deposits | Fair Value Level 1
    
Financial Instruments [Line Items]    
Cost 132,549 132,549
Estimated Fair Value 132,549 132,549
Restricted Cash & Investments 132,549 132,549
Money Market Funds | Fair Value Level 1
    
Financial Instruments [Line Items]    
Cost 1,013,013 1,168,261
Estimated Fair Value 1,013,013 1,168,261
Cash and Cash Equivalents 1,013,013 1,168,261
US Treasury and Agencies | Fair Value Level 1
    
Financial Instruments [Line Items]    
Cost 241,522 212,436
Unrealized Gain 178 178
Unrealized (Loss) (98) (27)
Estimated Fair Value 241,602 212,587
Short-Term Investments 230,537 204,549
Restricted Cash & Investments 11,065 8,038
Mutual Funds | Fair Value Level 1
    
Financial Instruments [Line Items]    
Cost 20,071 18,784
Unrealized Gain 3,635 2,974
Estimated Fair Value 23,706 21,758
Other Assets 23,706 21,758
Government-Sponsored Enterprises | Fair Value Level 2
    
Financial Instruments [Line Items]    
Cost 54,449 27,666
Unrealized Gain 39 41
Unrealized (Loss) (68) (15)
Estimated Fair Value 54,420 27,692
Short-Term Investments 54,420 27,692
Foreign Government Bonds | Fair Value Level 2
    
Financial Instruments [Line Items]    
Cost 34,192 35,438
Unrealized Gain 26 57
Unrealized (Loss) (46) (28)
Estimated Fair Value 34,172 35,467
Short-Term Investments 34,172 35,467
Mortgage Backed Securities - Residential | Fair Value Level 2
    
Financial Instruments [Line Items]    
Cost 24,288 27,067
Unrealized Gain 76 59
Unrealized (Loss) (152) (182)
Estimated Fair Value 24,212 26,944
Short-Term Investments 24,212 26,944
Mortgage Backed Securities - Commercial | Fair Value Level 2
    
Financial Instruments [Line Items]    
Cost 108,165 112,642
Unrealized Gain 117 100
Unrealized (Loss) (549) (809)
Estimated Fair Value 107,733 111,933
Short-Term Investments $ 107,733 $ 111,933