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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

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