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. 27, 2021	Jun. 28, 2020	Jun. 30, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	$ 5,104,009
Total Cost	6,060,441	$ 7,027,291
Total, Unrealized Gain	17,952	10,543
Total, Unrealized (Loss)	(600)	(1,244)
Total, Fair Value	6,077,793	7,036,590
Cash and Cash Equivalents	4,418,263	4,915,172	$ 3,658,219
Investments	1,310,872	1,795,080
Restricted Cash & Investments	252,487	253,911
Other Assets	96,171	72,427
Cash
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	875,738	977,862
Cash and Cash Equivalents	873,278	973,978
Investments	0	0
Restricted Cash & Investments	2,460	3,884
Other Assets	0	0
Time deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	1,548,874	2,244,655
Cash and Cash Equivalents	1,298,847	1,994,628
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	2,531,575	2,330,222
Total, Unrealized Gain	15,606	4,944
Total, Unrealized (Loss)	(80)	(937)
Total, Fair Value	2,547,101	2,334,229
Cash and Cash Equivalents	2,246,138	1,786,342
Investments	204,792	475,460
Restricted Cash & Investments	0	0
Other Assets	96,171	72,427
Level 1 | Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	2,246,138	1,709,350
Debt securities, Unrealized Gain	0	0
Debt securities, Unrealized (Loss)	0	0
Debt securities, Fair Value	2,246,138	1,709,350
Cash and Cash Equivalents	2,246,138	1,709,350
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	204,743	552,088
Debt securities, Unrealized Gain	96	373
Debt securities, Unrealized (Loss)	(47)	(9)
Debt securities, Fair Value	204,792	552,452
Cash and Cash Equivalents	0	76,992
Investments	204,792	475,460
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	80,694	68,784
Trading securities, Unrealized Gain	15,510	4,571
Trading securities, Unrealized (Loss)	(33)	(928)
Trading securities, Fair Value	96,171	72,427
Cash and Cash Equivalents	0	0
Investments	0	0
Restricted Cash & Investments	0	0
Other Assets	96,171	72,427
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Cost	1,104,254	1,474,552
Total, Unrealized Gain	2,346	5,599
Total, Unrealized (Loss)	(520)	(307)
Total, Fair Value	1,106,080	1,479,844
Cash and Cash Equivalents	0	160,224
Investments	1,106,080	1,319,620
Restricted Cash & Investments	0	0
Other Assets	0	0
Level 2 | Government-sponsored enterprises
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt securities, Cost	3,498	31,442
Debt securities, Unrealized Gain	7	12
Debt securities, Unrealized (Loss)	0	0
Debt securities, Fair Value	3,505	31,454
Cash and Cash Equivalents	0	25,999
Investments	3,505	5,455
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	32,995	10,693
Debt securities, Unrealized Gain	21	28
Debt securities, Unrealized (Loss)	(4)	(5)
Debt securities, Fair Value	33,012	10,716
Cash and Cash Equivalents	0	2,540
Investments	33,012	8,176
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	1,043,308	1,405,615
Debt securities, Unrealized Gain	2,247	5,344
Debt securities, Unrealized (Loss)	(457)	(302)
Debt securities, Fair Value	1,045,098	1,410,657
Cash and Cash Equivalents	0	131,685
Investments	1,045,098	1,278,972
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	5,623	3,142
Debt securities, Unrealized Gain	54	71
Debt securities, Unrealized (Loss)	0	0
Debt securities, Fair Value	5,677	3,213
Cash and Cash Equivalents	0	0
Investments	5,677	3,213
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]
Debt securities, Cost	18,830	23,660
Debt securities, Unrealized Gain	17	144
Debt securities, Unrealized (Loss)	(59)	0
Debt securities, Fair Value	18,788	23,804
Cash and Cash Equivalents	0	0
Investments	18,788	23,804
Restricted Cash & Investments	0	0
Other Assets	$ 0	$ 0