Cash, Cash Equivalents, Short-Term Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 28, 2015	Jun. 29, 2014
Financial Instruments [Line Items]
Cost	$ 4,283,009	$ 3,228,743
Unrealized Gain	4,261	6,551
Unrealized (Loss)	(6,352)	(1,400)
Fair Value	4,280,918	3,233,894
Cash and Cash Equivalents	1,501,539	1,452,677
Short-Term Investments	2,574,947	1,612,967
Restricted Cash & Investments	170,969	146,492
Other Assets	33,463	21,758
Fair Value Level 1
Financial Instruments [Line Items]
Cost	1,735,035	1,532,030
Unrealized Gain	2,998	3,152
Unrealized (Loss)	(908)	(27)
Fair Value	1,737,125	1,535,155
Cash and Cash Equivalents	1,222,613	1,168,261
Short-Term Investments	315,291	204,549
Restricted Cash & Investments	165,758	140,587
Other Assets	33,463	21,758
Fair Value Level 2
Financial Instruments [Line Items]
Cost	2,271,311	1,411,682
Unrealized Gain	1,263	3,399
Unrealized (Loss)	(5,444)	(1,373)
Fair Value	2,267,130	1,413,708
Cash and Cash Equivalents	7,474	5,290
Short-Term Investments	2,259,656	1,408,418
Fair Value Level 2 | Municipal Notes And Bonds
Financial Instruments [Line Items]
Cost	659,550	334,329
Unrealized Gain	429	1,108
Unrealized (Loss)	(335)	(4)
Fair Value	659,644	335,433
Cash and Cash Equivalents	7,474	5,290
Short-Term Investments	652,170	330,143
Fair Value Level 2 | Corporate Notes And Bonds
Financial Instruments [Line Items]
Cost	1,329,587	874,540
Unrealized Gain	685	2,034
Unrealized (Loss)	(3,797)	(335)
Fair Value	1,326,475	876,239
Short-Term Investments	1,326,475	876,239
Cash
Financial Instruments [Line Items]
Cost	276,663	285,031
Fair Value	276,663	285,031
Cash and Cash Equivalents	271,452	279,126
Restricted Cash & Investments	5,211	5,905
Time Deposits | Fair Value Level 1
Financial Instruments [Line Items]
Cost	177,567	132,549
Fair Value	177,567	132,549
Cash and Cash Equivalents	44,738
Restricted Cash & Investments	132,829	132,549
Money Market Funds | Fair Value Level 1
Financial Instruments [Line Items]
Cost	1,177,875	1,168,261
Fair Value	1,177,875	1,168,261
Cash and Cash Equivalents	1,177,875	1,168,261
US Treasury and Agencies | Fair Value Level 1
Financial Instruments [Line Items]
Cost	349,009	212,436
Unrealized Gain	72	178
Unrealized (Loss)	(861)	(27)
Fair Value	348,220	212,587
Short-Term Investments	315,291	204,549
Restricted Cash & Investments	32,929	8,038
US Treasury and Agencies | Fair Value Level 2
Financial Instruments [Line Items]
Cost	4,007
Unrealized (Loss)	(4)
Fair Value	4,003
Short-Term Investments	4,003
Mutual Funds | Fair Value Level 1
Financial Instruments [Line Items]
Cost	30,584	18,784
Unrealized Gain	2,926	2,974
Unrealized (Loss)	(47)
Fair Value	33,463	21,758
Other Assets	33,463	21,758
Government-Sponsored Enterprises | Fair Value Level 2
Financial Instruments [Line Items]
Cost	53,612	27,666
Unrealized Gain	2	41
Unrealized (Loss)	(249)	(15)
Fair Value	53,365	27,692
Short-Term Investments	53,365	27,692
Foreign Government Bonds | Fair Value Level 2
Financial Instruments [Line Items]
Cost	50,336	35,438
Unrealized Gain	31	57
Unrealized (Loss)	(161)	(28)
Fair Value	50,206	35,467
Short-Term Investments	50,206	35,467
Mortgage Backed Securities - Residential | Fair Value Level 2
Financial Instruments [Line Items]
Cost	32,231	27,067
Unrealized Gain	72	59
Unrealized (Loss)	(292)	(182)
Fair Value	32,011	26,944
Short-Term Investments	32,011	26,944
Mortgage Backed Securities - Commercial | Fair Value Level 2
Financial Instruments [Line Items]
Cost	141,988	112,642
Unrealized Gain	44	100
Unrealized (Loss)	(606)	(809)
Fair Value	141,426	111,933
Short-Term Investments	$ 141,426	$ 111,933