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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. 24, 2017
Jun. 25, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost $ 6,492,672 $ 6,349,485
Unrealized Gain 7,925 8,968
Unrealized (Loss) (5,979) (4,832)
Fair Value 6,494,618 6,353,621
Cash and Cash Equivalents 2,406,462 2,377,534
Investments 3,775,925 3,663,628
Restricted Cash & Investments 256,045 256,205
Other Assets 56,186 56,254
Fair Value Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 2,962,809 2,901,178
Unrealized Gain 3,390 3,691
Unrealized (Loss) (2,639) (2,111)
Fair Value 2,963,560 2,902,758
Cash and Cash Equivalents 1,853,858 1,822,353
Investments 803,489 774,124
Restricted Cash & Investments 250,027 250,027
Other Assets 56,186 56,254
Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 2,985,873 2,896,999
Unrealized Gain 4,535 5,277
Unrealized (Loss) (3,340) (2,721)
Fair Value 2,987,068 2,899,555
Cash and Cash Equivalents 14,632 10,051
Investments 2,972,436 2,889,504
Restricted Cash & Investments 0 0
Other Assets 0 0
Cash    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 543,990 551,308
Unrealized Gain 0 0
Unrealized (Loss) 0 0
Fair Value 543,990 551,308
Cash and Cash Equivalents 537,972 545,130
Investments 0 0
Restricted Cash & Investments 6,018 6,178
Other Assets 0 0
Time deposit | Fair Value Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 693,205 640,666
Unrealized Gain 0 0
Unrealized (Loss) 0 0
Fair Value 693,205 640,666
Cash and Cash Equivalents 443,178 390,639
Investments 0 0
Restricted Cash & 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]    
Cost 1,395,032 1,423,417
Unrealized Gain 0 0
Unrealized (Loss) 0 0
Fair Value 1,395,032 1,423,417
Cash and Cash Equivalents 1,395,032 1,423,417
Investments 0 0
Restricted Cash & 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]    
Cost 821,441 783,848
Unrealized Gain 265 684
Unrealized (Loss) (2,569) (2,111)
Fair Value 819,137 782,421
Cash and Cash Equivalents 15,648 8,297
Investments 803,489 774,124
Restricted Cash & Investments 0 0
Other Assets 0 0
U.S. Treasury and agencies | Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 12,798 12,795
Unrealized Gain 0 0
Unrealized (Loss) (102) (167)
Fair Value 12,696 12,628
Cash and Cash Equivalents 0 0
Investments 12,696 12,628
Restricted Cash & Investments 0 0
Other Assets 0 0
Mutual funds | Fair Value Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 53,131 53,247
Unrealized Gain 3,125 3,007
Unrealized (Loss) (70) 0
Fair Value 56,186 56,254
Cash and Cash Equivalents 0 0
Investments 0 0
Restricted Cash & Investments 0 0
Other Assets 56,186 56,254
Municipal notes and bonds | Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 165,029 194,575
Unrealized Gain 322 308
Unrealized (Loss) (21) (7)
Fair Value 165,330 194,876
Cash and Cash Equivalents 0 0
Investments 165,330 194,876
Restricted Cash & Investments 0 0
Other Assets 0 0
Government-sponsored enterprises | Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 55,845 24,502
Unrealized Gain 0 0
Unrealized (Loss) (322) (6)
Fair Value 55,523 24,496
Cash and Cash Equivalents 0 0
Investments 55,523 24,496
Restricted Cash & Investments 0 0
Other Assets 0 0
Foreign government bonds | Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 67,040 62,917
Unrealized Gain 90 219
Unrealized (Loss) (128) (114)
Fair Value 67,002 63,022
Cash and Cash Equivalents 0 0
Investments 67,002 63,022
Restricted Cash & 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]    
Cost 2,532,374 2,433,622
Unrealized Gain 4,020 4,654
Unrealized (Loss) (2,376) (1,840)
Fair Value 2,534,018 2,436,436
Cash and Cash Equivalents 14,632 10,051
Investments 2,519,386 2,426,385
Restricted Cash & 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]    
Cost 46,614 102,760
Unrealized Gain 63 87
Unrealized (Loss) (116) (489)
Fair Value 46,561 102,358
Cash and Cash Equivalents 0 0
Investments 46,561 102,358
Restricted Cash & Investments 0 0
Other Assets 0 0
Mortgage backed securities — commercial | Fair Value Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cost 106,173 65,828
Unrealized Gain 40 9
Unrealized (Loss) (275) (98)
Fair Value 105,938 65,739
Cash and Cash Equivalents 0 0
Investments 105,938 65,739
Restricted Cash & Investments 0 0
Other Assets $ 0 $ 0