FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents, Investments, Restricted Cash and Investments and Other Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 28, 2021	Jun. 28, 2020		Mar. 29, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	$ 5,287,192
Total cost	6,125,042	$ 7,027,291
Total, unrealized gain	13,411	10,543
Total unrealized (loss)	(783)	(1,244)
Total fair value	6,137,670	7,036,590
Cash and Cash Equivalents	3,673,366	4,915,172	[1]	$ 3,961,586
Investments	2,116,101	1,795,080	[1]
Restricted cash and investments	253,460	253,911	[1]
Other Assets	94,743	72,427
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cost	2,108,118	2,330,222
Total, unrealized gain	10,680	4,944
Total unrealized (loss)	(118)	(937)
Total fair value	2,118,680	2,334,229
Cash and Cash Equivalents	1,638,280	1,786,342
Investments	385,657	475,460
Restricted cash and investments	0	0
Other Assets	94,743	72,427
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total cost	1,913,517	1,474,552
Total, unrealized gain	2,731	5,599
Total unrealized (loss)	(665)	(307)
Total fair value	1,915,583	1,479,844
Cash and Cash Equivalents	185,139	160,224
Investments	1,730,444	1,319,620
Restricted cash and investments	0	0
Other Assets	0	0
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents at fair value	753,473	977,862
Cash and Cash Equivalents	750,040	973,978
Investments	0	0
Restricted cash and investments	3,433	3,884
Other Assets	0	0
Time deposits
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents at fair value	1,349,934	2,244,655
Cash and Cash Equivalents	1,099,907	1,994,628
Investments	0	0
Restricted cash and investments	250,027	250,027
Other Assets	0	0
Money market funds | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	1,638,280	1,709,350
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Debt securities, fair value	1,638,280	1,709,350
Cash and Cash Equivalents	1,638,280	1,709,350
Investments	0	0
Restricted cash and investments	0	0
Other Assets	0	0
U.S. Treasury and agencies | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	385,461	552,088
Debt securities, unrealized gain	209	373
Debt securities, unrealized (loss)	(13)	(9)
Debt securities, fair value	385,657	552,452
Cash and Cash Equivalents	0	76,992
Investments	385,657	475,460
Restricted cash and investments	0	0
Other Assets	0	0
Mutual funds | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Trading securities, cost	84,377	68,784
Trading securities, unrealized gain	10,471	4,571
Trading securities, unrealized (loss)	(105)	(928)
Trading securities, fair value	94,743	72,427
Cash and Cash Equivalents	0	0
Investments	0	0
Restricted cash and investments	0	0
Other Assets	94,743	72,427
Government-sponsored enterprises | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	3,500	31,442
Debt securities, unrealized gain	12	12
Debt securities, unrealized (loss)	0	0
Debt securities, fair value	3,512	31,454
Cash and Cash Equivalents	0	25,999
Investments	3,512	5,455
Restricted cash and investments	0	0
Other Assets	0	0
Foreign government bonds | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	47,099	10,693
Debt securities, unrealized gain	43	28
Debt securities, unrealized (loss)	(1)	(5)
Debt securities, fair value	47,141	10,716
Cash and Cash Equivalents	0	2,540
Investments	47,141	8,176
Restricted cash and investments	0	0
Other Assets	0	0
Corporate notes and bonds | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	1,844,375	1,405,615
Debt securities, unrealized gain	2,569	5,344
Debt securities, unrealized (loss)	(633)	(302)
Debt securities, fair value	1,846,311	1,410,657
Cash and Cash Equivalents	185,139	131,685
Investments	1,661,172	1,278,972
Restricted cash and investments	0	0
Other Assets	0	0
Mortgage backed securities — residential | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	6,279	3,142
Debt securities, unrealized gain	74	71
Debt securities, unrealized (loss)	0	0
Debt securities, fair value	6,353	3,213
Cash and Cash Equivalents	0	0
Investments	6,353	3,213
Restricted cash and investments	0	0
Other Assets	0	0
Mortgage backed securities — commercial | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, cost	12,264	23,660
Debt securities, unrealized gain	33	144
Debt securities, unrealized (loss)	(31)	0
Debt securities, fair value	12,266	23,804
Cash and Cash Equivalents	0	0
Investments	12,266	23,804
Restricted cash and investments	0	0
Other Assets	$ 0	$ 0

[1] Derived from audited financial statements