Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 29, 2013		Jun. 30, 2013		Jul. 01, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,598,911		$ 1,436,737
Unrealized Gain	262		692
Unrealized (Loss)	(249)	[1]	(73)	[1]
Fair Value	1,598,924		1,437,356
Due in one year or less	1,202,661				1,349,531
Due after one year through three years	101,806				48,560
Total	1,304,467				1,398,091
Cash equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	294,457		39,265
Unrealized Gain	0		0
Unrealized (Loss)	0	[1]	0	[1]
Fair Value	294,457		39,265
Marketable securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,304,454		1,397,472
Unrealized Gain	262		692
Unrealized (Loss)	(249)	[1]	(73)	[1]
Fair Value	1,304,467		1,398,091
U.S. Treasury securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	496,052		423,090
Unrealized Gain	113		247
Unrealized (Loss)	(102)	[1]	(2)	[1]
Fair Value	496,063		423,335
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	140,808		120,420
Unrealized Gain	43		100
Unrealized (Loss)	(94)	[1]	(3)	[1]
Fair Value	140,757		120,517
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	563,540		674,004
Unrealized Gain	92		319
Unrealized (Loss)	(47)	[1]	(64)	[1]
Fair Value	563,585		674,259
Corporate debt securities and other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	262,265		209,257
Unrealized Gain	14		26
Unrealized (Loss)	(6)	[1]	(4)	[1]
Fair Value	262,273		209,279
Money market funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	136,246		9,966
Unrealized Gain	0		0
Unrealized (Loss)	0	[1]	0	[1]
Fair Value	$ 136,246		$ 9,966

[1] The Company evaluated the nature of the investments with a loss position at December 29, 2013 and June 30, 2013, which are primarily obligations of the U.S. government and its sponsored enterprises, municipal bonds and U.S. corporate notes. In evaluating the investments, the Company considered the duration of the impairments, and the amount of the impairments relative to the underlying portfolio and concluded that such amounts were not other-than-temporary. The Company principally holds securities until maturity, however, they may be sold under certain circumstances. Unrealized losses on the investments greater than twelve months old were not significant as of December 29, 2013 and June 30, 2013.