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FINANCIAL INSTRUMENTS - Cash, Cash Equivalents, Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 25, 2016 | Dec. 27, 2015 | Dec. 25, 2016 | Dec. 27, 2015 | Jun. 26, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | $ 6,142,581,000 |  | $ 6,142,581,000 |  | $ 7,111,464,000
Unrealized Gain | 2,288,000 |  | 2,288,000 |  | 8,522,000
Unrealized (Loss) | (13,807,000) |  | (13,807,000) |  | (1,310,000)
Fair Value | 6,131,062,000 |  | 6,131,062,000 |  | 7,118,676,000
Cash and Cash Equivalents | 2,503,960,000 |  | 2,503,960,000 |  | 5,039,322,000
Investments | 3,329,425,000 |  | 3,329,425,000 |  | 1,788,612,000
Restricted Cash & Investments | 255,175,000 |  | 255,175,000 |  | 250,421,000
Other Assets | 42,502,000 |  | 42,502,000 |  | 40,321,000
Other than temporary impairment included in net realized gains (losses) | 0 | $ 0 | 0 | $ 0 |
Gross realized gains from sale of investments | 100,000 | 600,000 | 2,700,000 | 800,000 |
Gross realized losses from sale of investments | (400,000) | $ (1,400,000) | (600,000) | $ (2,000,000) |
Fair Value Level 1 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 2,814,865,000 |  | 2,814,865,000 |  | 5,294,379,000
Unrealized Gain | 1,652,000 |  | 1,652,000 |  | 3,441,000
Unrealized (Loss) | (4,720,000) |  | (4,720,000) |  | (399,000)
Fair Value | 2,811,797,000 |  | 2,811,797,000 |  | 5,297,421,000
Cash and Cash Equivalents | 1,801,366,000 |  | 1,801,366,000 |  | 4,626,749,000
Investments | 717,901,000 |  | 717,901,000 |  | 385,573,000
Restricted Cash & Investments | 250,028,000 |  | 250,028,000 |  | 244,778,000
Other Assets | 42,502,000 |  | 42,502,000 |  | 40,321,000
Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 2,711,794,000 |  | 2,711,794,000 |  | 1,398,869,000
Unrealized Gain | 636,000 |  | 636,000 |  | 5,081,000
Unrealized (Loss) | (9,087,000) |  | (9,087,000) |  | (911,000)
Fair Value | 2,703,343,000 |  | 2,703,343,000 |  | 1,403,039,000
Cash and Cash Equivalents | 91,819,000 |  | 91,819,000 |  | 0
Investments | 2,611,524,000 |  | 2,611,524,000 |  | 1,403,039,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Cash |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 615,922,000 |  | 615,922,000 |  | 418,216,000
Unrealized Gain | 0 |  | 0 |  | 0
Unrealized (Loss) | 0 |  | 0 |  | 0
Fair Value | 615,922,000 |  | 615,922,000 |  | 418,216,000
Cash and Cash Equivalents | 610,775,000 |  | 610,775,000 |  | 412,573,000
Investments | 0 |  | 0 |  | 0
Restricted Cash & Investments | 5,147,000 |  | 5,147,000 |  | 5,643,000
Other Assets | 0 |  | 0 |  | 0
Time Deposit | Fair Value Level 1 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 728,810,000 |  | 728,810,000 |  | 904,243,000
Unrealized Gain | 0 |  | 0 |  | 0
Unrealized (Loss) | 0 |  | 0 |  | 0
Fair Value | 728,810,000 |  | 728,810,000 |  | 904,243,000
Cash and Cash Equivalents | 478,782,000 |  | 478,782,000 |  | 659,465,000
Investments | 0 |  | 0 |  | 0
Restricted Cash & Investments | 250,028,000 |  | 250,028,000 |  | 244,778,000
Other Assets | 0 |  | 0 |  | 0
Money Market Funds | Fair Value Level 1 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 1,233,602,000 |  | 1,233,602,000 |  | 3,904,288,000
Unrealized Gain | 0 |  | 0 |  | 0
Unrealized (Loss) | 0 |  | 0 |  | 0
Fair Value | 1,233,602,000 |  | 1,233,602,000 |  | 3,904,288,000
Cash and Cash Equivalents | 1,233,602,000 |  | 1,233,602,000 |  | 3,904,288,000
Investments | 0 |  | 0 |  | 0
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
U.S. Treasury and Agencies | Fair Value Level 1 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 811,564,000 |  | 811,564,000 |  | 446,530,000
Unrealized Gain | 39,000 |  | 39,000 |  | 2,041,000
Unrealized (Loss) | (4,720,000) |  | (4,720,000) |  | (2,000)
Fair Value | 806,883,000 |  | 806,883,000 |  | 448,569,000
Cash and Cash Equivalents | 88,982,000 |  | 88,982,000 |  | 62,996,000
Investments | 717,901,000 |  | 717,901,000 |  | 385,573,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
U.S. Treasury and Agencies | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost |  |  |  |  | 8,068,000
Unrealized Gain |  |  |  |  | 151,000
Unrealized (Loss) |  |  |  |  | 0
Fair Value |  |  |  |  | 8,219,000
Cash and Cash Equivalents |  |  |  |  | 0
Investments |  |  |  |  | 8,219,000
Restricted Cash & Investments |  |  |  |  | 0
Other Assets |  |  |  |  | 0
Mutual Funds | Fair Value Level 1 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 40,889,000 |  | 40,889,000 |  | 39,318,000
Unrealized Gain | 1,613,000 |  | 1,613,000 |  | 1,400,000
Unrealized (Loss) | 0 |  | 0 |  | (397,000)
Fair Value | 42,502,000 |  | 42,502,000 |  | 40,321,000
Cash and Cash Equivalents | 0 |  | 0 |  | 0
Investments | 0 |  | 0 |  | 0
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 42,502,000 |  | 42,502,000 |  | 40,321,000
Municipal Notes and Bonds | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 134,838,000 |  | 134,838,000 |  | 265,386,000
Unrealized Gain | 48,000 |  | 48,000 |  | 355,000
Unrealized (Loss) | (115,000) |  | (115,000) |  | (16,000)
Fair Value | 134,771,000 |  | 134,771,000 |  | 265,725,000
Cash and Cash Equivalents | 0 |  | 0 |  | 0
Investments | 134,771,000 |  | 134,771,000 |  | 265,725,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Government-Sponsored Enterprises | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 31,357,000 |  | 31,357,000 |  | 31,885,000
Unrealized Gain | 0 |  | 0 |  | 91,000
Unrealized (Loss) | (42,000) |  | (42,000) |  | (13,000)
Fair Value | 31,315,000 |  | 31,315,000 |  | 31,963,000
Cash and Cash Equivalents | 0 |  | 0 |  | 0
Investments | 31,315,000 |  | 31,315,000 |  | 31,963,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Foreign Government Bonds | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 30,605,000 |  | 30,605,000 |  | 41,440,000
Unrealized Gain | 0 |  | 0 |  | 76,000
Unrealized (Loss) | (177,000) |  | (177,000) |  | (4,000)
Fair Value | 30,428,000 |  | 30,428,000 |  | 41,512,000
Cash and Cash Equivalents | 1,154,000 |  | 1,154,000 |  | 0
Investments | 29,274,000 |  | 29,274,000 |  | 41,512,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Corporate Notes and Bonds | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 2,361,859,000 |  | 2,361,859,000 |  | 979,566,000
Unrealized Gain | 542,000 |  | 542,000 |  | 4,341,000
Unrealized (Loss) | (7,563,000) |  | (7,563,000) |  | (566,000)
Fair Value | 2,354,838,000 |  | 2,354,838,000 |  | 983,341,000
Cash and Cash Equivalents | 80,167,000 |  | 80,167,000 |  | 0
Investments | 2,274,671,000 |  | 2,274,671,000 |  | 983,341,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Mortgage Backed Securities — Residential | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 98,869,000 |  | 98,869,000 |  | 17,395,000
Unrealized Gain | 42,000 |  | 42,000 |  | 37,000
Unrealized (Loss) | (975,000) |  | (975,000) |  | (152,000)
Fair Value | 97,936,000 |  | 97,936,000 |  | 17,280,000
Cash and Cash Equivalents | 10,498,000 |  | 10,498,000 |  | 0
Investments | 87,438,000 |  | 87,438,000 |  | 17,280,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | 0 |  | 0 |  | 0
Mortgage Backed Securities — Commercial | Fair Value Level 2 |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Cost | 54,266,000 |  | 54,266,000 |  | 55,129,000
Unrealized Gain | 4,000 |  | 4,000 |  | 30,000
Unrealized (Loss) | (215,000) |  | (215,000) |  | (160,000)
Fair Value | 54,055,000 |  | 54,055,000 |  | 54,999,000
Cash and Cash Equivalents | 0 |  | 0 |  | 0
Investments | 54,055,000 |  | 54,055,000 |  | 54,999,000
Restricted Cash & Investments | 0 |  | 0 |  | 0
Other Assets | $ 0 |  | $ 0 |  | $ 0

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