Debts and Letters of Credit (Details) (USD $)			0 Months Ended		12 Months Ended		48 Months Ended	0 Months Ended	12 Months Ended			12 Months Ended
	Jun. 28, 2014 item	Jun. 29, 2013	Aug. 21, 2013 Revolving Credit Facility	Jun. 05, 2006 1% Senior Convertible notes	Jun. 28, 2014 1% Senior Convertible notes	Jun. 29, 2013 1% Senior Convertible notes	Jun. 29, 2013 1% Senior Convertible notes	Aug. 21, 2013 0.625% Senior Convertible Notes	Jun. 28, 2014 0.625% Senior Convertible Notes	Aug. 15, 2013 0.625% Senior Convertible Notes	Jun. 28, 2014 0.625% Senior Convertible Notes Other non-current assets	Jun. 28, 2014 0.625% Senior Convertible Notes Maximum	Jun. 28, 2014 0.625% Senior Convertible Notes Minimum D
Debt details
Total long-term debt	$ 536,300,000	$ 0		$ 266,500,000					$ 536,300,000
Interest rate on senior convertible notes (as a percent)				1.00%	1.00%			0.625%	0.625%
Aggregate principal amount of convertible debt				425,000,000				650,000,000
Proceeds from issuance of convertible notes after issuance costs				415,900,000				636,300,000
Conversion price of convertible debt (in dollars per share)				$ 30.30						$ 18.83
Conversion price of convertible debt as premium on closing price of common stock (as a percent)										40.00%
Principal amount used for debt instrument conversion								1,000
Percentage of the conversion price that the closing price of the entity's common stock must exceed in order for the notes to be convertible													130.00%
Number of trading days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be redeemable													20
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 trading days in order for the notes to be redeemable								30 days
Number of consecutive business days immediately following any 10 consecutive trading day period								5 days
Number of consecutive trading days before five consecutive business-days								10 days
Percentage of the trading price to the closing sale price of the entity's common stock												98.00%
Percentage of principal amount that the holder of the note may require the entity to repurchase the debt instrument								100.00%
Percentage of principal amount at which the entity may redeem some or all of the notes for cash								100.00%
Discount rate used to calculate the carrying value of the liability component of the convertible debt (as a percent)				8.10%				5.40%
Variable rate basis on which discount rate is based					7-year swap				5-year swap
Effective interest rate (as a percent)				8.10%				5.40%	5.40%
Carrying value of the liability component								515,600,000
Remaining term of convertible notes									4 years 1 month 6 days
Deferred finance costs								13,700,000
Liability component, debt issuance cost								10,900,000
Equity component, debt issuance cost								2,800,000
Unamortized portion of debt issuance cost			1,300,000								9,200,000
Carrying amounts of the liability and equity components:
Principal amount of notes					0	0	0	650,000,000	650,000,000
Unamortized discount of liability component									(113,700,000)
Carrying value of the equity component of convertible debt				158,500,000				134,400,000	134,400,000
Fair market value of convertible debt									653,000,000
Interest expense for the contractual interest and the amortization of debt discount
Effective interest rate (as a percent)				8.10%				5.40%	5.40%
Interest expense-contractual interest						1,800,000			3,500,000
Accretion of debt discount						12,000,000			20,700,000
Principal amount of debt repurchased							425,000,000
Amount outstanding					0	0	0	650,000,000	650,000,000
Revolving credit facility terminated			250,000,000
Outstanding balance			0
Outstanding Letters of Credit
Number of standby letters of credit	14
Letters of credit outstanding	$ 35,200,000