Fair Value of Financial Instruments (Financial Instruments Carried at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2014	Jun. 29, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value transfers level 1 to level 2	$ 0
Fair value transfers, level 2 to level 1	0
Assets, Fair Value Disclosure [Abstract]
Short-term investments	629,965	875,642
Other long-term investments	79,089	0
Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	4,611	40,031
Short-term investments	629,965	875,642
Other long-term investments	79,089	0
Total assets	713,665	915,673
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	4,455	40,031
Short-term investments	0	0
Other long-term investments	0	0
Total assets	4,455	40,031
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	156	0
Short-term investments	629,965	875,642
Other long-term investments	79,089	0
Total assets	709,210	875,642
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Short-term investments	0	0
Other long-term investments	0	0
Total assets	0	0
Municipal Bonds [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	185,156	294,180
Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	185,156	294,180
Municipal Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Municipal Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	185,156	294,180
Municipal Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Corporate Bonds [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	161,506	202,346
Corporate Bonds [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	161,506	202,346
Corporate Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Corporate Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	161,506	202,346
Corporate Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
U.S. Agency Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	19,135
U.S. Agency Securities [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	19,135
U.S. Agency Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
U.S. Agency Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	19,135
U.S. Agency Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Non-U.S. Certificates of Deposit [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	283,303	352,928
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	283,303	352,928
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	283,303	352,928
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Non-U.S. Government Securities [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	7,053
Non-U.S. Government Securities [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	7,053
Non-U.S. Government Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Non-U.S. Government Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	7,053
Non-U.S. Government Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Short-term investments	0	0
Common stock of non-U.S. corporations [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Other long-term investments	79,089	0
Common stock of non-U.S. corporations [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Other long-term investments	0	0
Common stock of non-U.S. corporations [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Other long-term investments	79,089	0
Common stock of non-U.S. corporations [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Other long-term investments	0	0
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	156	0
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	156	0
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	4,455	40,031
Money Market Funds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	4,455	40,031
Money Market Funds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Money Market Funds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	$ 0	$ 0