Debts and Letters of Credit (Details) (USD $)			0 Months Ended		3 Months Ended		9 Months Ended	48 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 29, 2014 item	Jun. 29, 2013	Aug. 21, 2013 Revolving Credit Facility	Jun. 05, 2006 1% Senior Convertible notes	Mar. 30, 2013 1% Senior Convertible notes	Mar. 30, 2013 1% Senior Convertible notes	Mar. 30, 2013 1% Senior Convertible notes	Jun. 29, 2013 1% Senior Convertible notes	Mar. 29, 2014 1% Senior Convertible notes	Aug. 21, 2013 2033 Notes	Mar. 29, 2014 2033 Notes	Mar. 29, 2014 2033 Notes	Aug. 15, 2013 2033 Notes	Mar. 29, 2014 2033 Notes Other non-current assets	Mar. 29, 2014 2033 Notes Maximum	Mar. 29, 2014 2033 Notes Maximum	Mar. 29, 2014 2033 Notes Minimum D	Mar. 29, 2014 2033 Notes Minimum D
Debt details
Carrying value of the liability component										$ 515,600,000
Total long-term debt	530,200,000	0		266,500,000							530,200,000	530,200,000
Interest rate on senior convertible notes (as a percent)				1.00%						0.625%
Short-term debt											0	0
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	1,000	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%	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	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	30 days	30 days
Number of consecutive business days immediately following any 10 consecutive trading day period										5 days	5 days	5 days
Number of consecutive trading days before five consecutive business-days										10 days	10 days	10 days
Percentage of the trading price to the closing sale price of the entity's common stock															98.00%	98.00%
Percentage of principal amount that the holder of the note may require the entity to repurchase the debt instrument										100.00%	100.00%	100.00%
Percentage of principal amount at which the entity may redeem some or all of the notes for cash										100.00%	100.00%	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%	5.40%	5.40%
Variable rate basis on which discount rate is based				7-year swap						5-year swap
Effective interest rate (as a percent)				81.00%	81.00%		81.00%			5.40%	5.40%	5.40%
Remaining term of convertible notes											4 years 4 months 24 days	4 years 4 months 24 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											9,700,000
Carrying amounts of the liability and equity components:
Principal amount of notes									0	650,000,000	650,000,000	650,000,000
Unamortized discount of liability component											(119,800,000)	(119,800,000)
Carrying value of the equity component of convertible debt				158,500,000						134,400,000	134,400,000	134,400,000
Fair market value of convertible debt											683,200,000	683,200,000
Effective interest rate and interest expense for the contractual interest and the accretion of debt discount:
Effective interest rate (as a percent)				81.00%	81.00%		81.00%			5.40%	5.40%	5.40%
Interest expense-contractual interest						400,000	1,600,000				1,000,000	2,400,000
Accretion of debt discount						2,800,000	10,600,000				6,000,000	14,600,000
Principal amount of debt repurchased								425,000,000
Amount outstanding									0	650,000,000	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	$ 34,700,000