Financial Instruments - 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. 25, 2017	Jun. 26, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	$ 6,349,485	$ 7,111,464
Unrealized Gain	8,968	8,522
Unrealized (Loss)	(4,832)	(1,310)
Fair Value	6,353,621	7,118,676
Cash and Cash Equivalents	2,377,534	5,039,322
Investments	3,663,628	1,788,612
Restricted Cash & Investments	256,205	250,421
Other Assets	56,254	40,321
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	551,308	418,216
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Fair Value	551,308	418,216
Cash and Cash Equivalents	545,130	412,573
Investments	0	0
Restricted Cash & Investments	6,178	5,643
Other Assets	0	0
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	2,901,178	5,294,379
Unrealized Gain	3,691	3,441
Unrealized (Loss)	(2,111)	(399)
Fair Value	2,902,758	5,297,421
Cash and Cash Equivalents	1,822,353	4,626,749
Investments	774,124	385,573
Restricted Cash & Investments	250,027	244,778
Other Assets	56,254	40,321
Level 1 | Time deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	640,666	904,243
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Fair Value	640,666	904,243
Cash and Cash Equivalents	390,639	659,465
Investments	0	0
Restricted Cash & Investments	250,027	244,778
Other Assets	0	0
Level 1 | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	1,423,417	3,904,288
Unrealized Gain	0	0
Unrealized (Loss)	0	0
Fair Value	1,423,417	3,904,288
Cash and Cash Equivalents	1,423,417	3,904,288
Investments	0	0
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 1 | U.S. Treasury and agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	783,848	446,530
Unrealized Gain	684	2,041
Unrealized (Loss)	(2,111)	(2)
Fair Value	782,421	448,569
Cash and Cash Equivalents	8,297	62,996
Investments	774,124	385,573
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 1 | Mutual funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	53,247	39,318
Unrealized Gain	3,007	1,400
Unrealized (Loss)		(397)
Fair Value	56,254	40,321
Cash and Cash Equivalents	0	0
Investments	0	0
Restricted Cash & Investments	0	0
Other Assets	56,254	40,321
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	2,896,999	1,398,869
Unrealized Gain	5,277	5,081
Unrealized (Loss)	(2,721)	(911)
Fair Value	2,899,555	1,403,039
Cash and Cash Equivalents	10,051	0
Investments	2,889,504	1,403,039
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | U.S. Treasury and agencies
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	12,795	8,068
Unrealized Gain	0	151
Unrealized (Loss)	(167)	0
Fair Value	12,628	8,219
Cash and Cash Equivalents	0	0
Investments	12,628	8,219
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Municipal notes and bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	194,575	265,386
Unrealized Gain	308	355
Unrealized (Loss)	(7)	(16)
Fair Value	194,876	265,725
Cash and Cash Equivalents	0	0
Investments	194,876	265,725
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Government-sponsored enterprises
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	24,502	31,885
Unrealized Gain	0	91
Unrealized (Loss)	(6)	(13)
Fair Value	24,496	31,963
Cash and Cash Equivalents	0	0
Investments	24,496	31,963
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Foreign government bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	62,917	41,440
Unrealized Gain	219	76
Unrealized (Loss)	(114)	(4)
Fair Value	63,022	41,512
Cash and Cash Equivalents	0	0
Investments	63,022	41,512
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Corporate notes and bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	2,433,622	979,566
Unrealized Gain	4,654	4,341
Unrealized (Loss)	(1,840)	(566)
Fair Value	2,436,436	983,341
Cash and Cash Equivalents	10,051	0
Investments	2,426,385	983,341
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Mortgage backed securities - residential
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	102,760	17,395
Unrealized Gain	87	37
Unrealized (Loss)	(489)	(152)
Fair Value	102,358	17,280
Cash and Cash Equivalents	0	0
Investments	102,358	17,280
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Mortgage backed securities - commercial
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	65,828	55,129
Unrealized Gain	9	30
Unrealized (Loss)	(98)	(160)
Fair Value	65,739	54,999
Cash and Cash Equivalents	0	0
Investments	65,739	54,999
Restricted Cash & Investments	0	0
Other Assets	$ 0	$ 0