Marketable Securities (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Mar. 30, 2014		Jun. 30, 2013		Jul. 01, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,646,166		$ 1,436,737
Unrealized Gain	104		692
Unrealized (Loss)	(271)	[1]	(73)	[1]
Fair Value	1,645,999		1,437,356
Due in one year or less	662,568				1,349,531
Due after one year through three years	293,791				48,560
Total	956,359				1,398,091
Cash equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	689,640		39,265
Unrealized Gain	0		0
Unrealized (Loss)	0	[1]	0	[1]
Fair Value	689,640		39,265
Marketable securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	956,526		1,397,472
Unrealized Gain	104		692
Unrealized (Loss)	(271)	[1]	(73)	[1]
Fair Value	956,359		1,398,091
U.S. Treasury securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	583,171		423,090
Unrealized Gain	56		247
Unrealized (Loss)	(163)	[1]	(2)	[1]
Fair Value	583,064		423,335
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	112,605		120,420
Unrealized Gain	11		100
Unrealized (Loss)	(56)	[1]	(3)	[1]
Fair Value	112,560		120,517
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	125,866		674,004
Unrealized Gain	25		319
Unrealized (Loss)	(7)	[1]	(64)	[1]
Fair Value	125,884		674,259
Corporate debt securities and other [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	258,840		209,257
Unrealized Gain	12		26
Unrealized (Loss)	(45)	[1]	(4)	[1]
Fair Value	258,807		209,279
Money market funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	565,684		9,966
Unrealized Gain	0		0
Unrealized (Loss)	0	[1]	0	[1]
Fair Value	$ 565,684		$ 9,966

[1] The Company evaluated the nature of the investments with a loss position at March 30, 2014 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 March 30, 2014 and June 30, 2013.