Financial Instruments - Cash, Cash Equivalents, Short-Term Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 24, 2018	Jun. 25, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	$ 5,216,315
Total Cost	5,760,736	$ 5,276,170
Total, Unrealized Gain	3,836	648
Total, Unrealized (Loss)	(451)	(1,980)
Total, Fair Value	5,764,121	5,274,838
Cash and Cash Equivalents	3,658,219	4,512,257	$ 2,377,534
Investments	1,772,984	437,338
Restricted Cash & Investments	255,177	256,301
Other Assets	77,741	68,942
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	467,460	708,364
Cash and Cash Equivalents	462,310	702,090
Investments	0	0
Restricted Cash & Investments	5,150	6,274
Other Assets	0	0
Time deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	1,563,686	999,666
Cash and Cash Equivalents	1,313,659	749,639
Investments	0	0
Restricted Cash & Investments	250,027	250,027
Other Assets	0	0
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Cost	2,187,275	2,767,054
Total, Unrealized Gain	1,346	516
Total, Unrealized (Loss)	(307)	(312)
Total, Fair Value	2,188,314	2,767,258
Cash and Cash Equivalents	1,731,640	2,675,528
Investments	378,933	22,788
Restricted Cash & Investments	0	0
Other Assets	77,741	68,942
Level 1 \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	1,644,659	2,341,807
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	0	0
Debt securities, Fair Value	1,644,659	2,341,807
Cash and Cash Equivalents	1,644,659	2,341,807
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]
Debt securities, Cost	465,655	356,679
Debt securities, Unrealized Gain	283	0
Debt securities, Unrealized (Loss)	(24)	(170)
Debt securities, Fair Value	465,914	356,509
Cash and Cash Equivalents	86,981	333,721
Investments	378,933	22,788
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 1 \| Mutual funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities, Cost	76,961	68,568
Trading securities, Unrealized Gain	1,063	516
Trading securities, Unrealized (Loss)	(283)	(142)
Trading securities, Fair Value	77,741	68,942
Cash and Cash Equivalents	0	0
Investments	0	0
Restricted Cash & Investments	0	0
Other Assets	77,741	68,942
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Cost	1,542,315	801,086
Total, Unrealized Gain	2,490	132
Total, Unrealized (Loss)	(144)	(1,668)
Total, Fair Value	1,544,661	799,550
Cash and Cash Equivalents	150,610	385,000
Investments	1,394,051	414,550
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]
Debt securities, Cost		152,378
Debt securities, Unrealized Gain		37
Debt securities, Unrealized (Loss)		(279)
Debt securities, Fair Value		152,136
Cash and Cash Equivalents		0
Investments		152,136
Restricted Cash & Investments		0
Other Assets		0
Level 2 \| Government-sponsored enterprises
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	16,005	110,963
Debt securities, Unrealized Gain	5	0
Debt securities, Unrealized (Loss)	(41)	(201)
Debt securities, Fair Value	15,969	110,762
Cash and Cash Equivalents	0	99,934
Investments	15,969	10,828
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 \| Foreign government bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	24,408	19,986
Debt securities, Unrealized Gain	35	0
Debt securities, Unrealized (Loss)	0	(1)
Debt securities, Fair Value	24,443	19,985
Cash and Cash Equivalents	0	19,985
Investments	24,443	0
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]
Debt securities, Cost	1,466,167	516,955
Debt securities, Unrealized Gain	2,310	95
Debt securities, Unrealized (Loss)	(99)	(1,184)
Debt securities, Fair Value	1,468,378	515,866
Cash and Cash Equivalents	150,610	265,081
Investments	1,317,768	250,785
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]
Debt securities, Cost	6,148	804
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	(4)	(3)
Debt securities, Fair Value	6,144	801
Cash and Cash Equivalents	0	0
Investments	6,144	801
Restricted Cash & Investments	0	0
Other Assets	0	$ 0
Level 2 \| Commercial Mortgage Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	29,587
Debt securities, Unrealized Gain	140
Debt securities, Unrealized (Loss)	0
Debt securities, Fair Value	29,727
Cash and Cash Equivalents	0
Investments	29,727
Restricted Cash & Investments	0
Other Assets	$ 0

Debt Securities, Trading and Available-for-sale, Accumulated Gross Unrealized Gain, Before Tax

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Debt Securities, Trading and Available-for-sale, Accumulated Gross Unrealized Loss, Before Tax

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Debt Securities, Trading and Available-for-sale, Cost

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Trading Debt Securities, Accumulated Gross Unrealized Gain, before Tax

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Trading Debt Securities, Accumulated Gross Unrealized Loss, before Tax

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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Fair value portion of other assets.

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The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amortized cost of investments in debt securities classified as trading.

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