FINANCIAL INSTRUMENTS - Cash, Cash Equivalents, Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 23, 2018	Jun. 24, 2018		Sep. 24, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	$ 3,223,663
Total Cost	3,946,605	$ 5,276,170
Total, Unrealized Gain	2,469	648
Total Unrealized (Loss)	(2,088)	(1,980)
Total Fair Value	3,946,986	5,274,838
Cash and Cash Equivalents	2,568,085	4,512,257	[1]	$ 2,406,462
Investments	1,050,863	437,338	[1]
Restricted cash and investments	255,924	256,301	[1]
Other Assets	72,114	68,942
Fair Value Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Cost	1,620,691	2,767,054
Total, Unrealized Gain	2,391	516
Total Unrealized (Loss)	(294)	(312)
Total Fair Value	1,622,788	2,767,258
Cash and Cash Equivalents	1,124,612	2,675,528
Investments	426,062	22,788
Restricted cash and investments	0	0
Other Assets	72,114	68,942
Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Cost	692,363	801,086
Total, Unrealized Gain	78	132
Total Unrealized (Loss)	(1,794)	(1,668)
Total Fair Value	690,647	799,550
Cash and Cash Equivalents	65,846	385,000
Investments	624,801	414,550
Restricted cash and investments	0	0
Other Assets	0	0
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Time deposit	653,135	708,364
Cash and Cash Equivalents	647,238	702,090
Investments	0	0
Restricted cash and investments	5,897	6,274
Other Assets	0	0
Time deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Time deposit	980,416	999,666
Cash and Cash Equivalents	730,389	749,639
Investments	0	0
Restricted cash and investments	250,027	250,027
Other Assets	0	0
Money market funds | Fair Value Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	1,091,683	2,341,807
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	0	0
Debt securities, Fair Value	1,091,683	2,341,807
Cash and Cash Equivalents	1,091,683	2,341,807
Investments	0	0
Restricted cash and investments	0	0
Other Assets	0	0
U.S. Treasury and agencies | Fair Value Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	459,201	356,679
Debt securities, Unrealized Gain	1	0
Debt securities, Unrealized (Loss)	(211)	(170)
Debt securities, Fair Value	458,991	356,509
Cash and Cash Equivalents	32,929	333,721
Investments	426,062	22,788
Restricted cash and investments	0	0
Other Assets	0	0
Mutual funds | Fair Value Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities, Cost	69,807	68,568
Trading securities, Unrealized Gain	2,390	516
Trading securities, Unrealized (Loss)	(83)	(142)
Trading securities, Fair Value	72,114	68,942
Cash and Cash Equivalents	0	0
Investments	0	0
Restricted cash and investments	0	0
Other Assets	72,114	68,942
Municipal notes and bonds | Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	152,337	152,378
Debt securities, Unrealized Gain	2	37
Debt securities, Unrealized (Loss)	(581)	(279)
Debt securities, Fair Value	151,758	152,136
Cash and Cash Equivalents	0	0
Investments	151,758	152,136
Restricted cash and investments	0	0
Other Assets	0	0
Government-sponsored enterprises | Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	11,022	110,963
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	(204)	(201)
Debt securities, Fair Value	10,818	110,762
Cash and Cash Equivalents	0	99,934
Investments	10,818	10,828
Restricted cash and investments	0	0
Other Assets	0	0
Foreign government bonds | Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	31,052	19,986
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	(8)	(1)
Debt securities, Fair Value	31,044	19,985
Cash and Cash Equivalents	0	19,985
Investments	31,044	0
Restricted cash and investments	0	0
Other Assets	0	0
Corporate notes and bonds | Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	497,206	516,955
Debt securities, Unrealized Gain	76	95
Debt securities, Unrealized (Loss)	(999)	(1,184)
Debt securities, Fair Value	496,283	515,866
Cash and Cash Equivalents	65,846	265,081
Investments	430,437	250,785
Restricted cash and investments	0	0
Other Assets	0	0
Mortgage backed securities — residential | Fair Value Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	746	804
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	(2)	(3)
Debt securities, Fair Value	744	801
Cash and Cash Equivalents	0	0
Investments	744	801
Restricted cash and investments	0	0
Other Assets	$ 0	$ 0

[1] Derived from audited financial statements