Components of Convertible Notes (Detail)	6 Months Ended
	Dec. 27, 2015 USD ($) $ / shares	Jun. 28, 2015 USD ($)	Jun. 30, 2012 USD ($)	May. 31, 2011 USD ($)
0.50% Notes due 2016
Debt Instrument [Line Items]
Carrying value, current portion	$ 443,704,000	$ 435,493,000
Unamortized discount	6,283,000	14,507,000
Principal amount	$ 449,987,000	450,000,000		$ 450,000,000
Remaining amortization period (years)	4 months 24 days
Effective interest rate on liability component	4.29%
Fair Value of Notes (Level 2)	$ 583,858,000
Conversion rate (shares of common stock per $1,000 principal amount of notes)	16.2107
Conversion price (per share of common stock) | $ / shares	$ 61.69
If-converted value in excess of par value	$ 136,426,000
Estimated share dilution using average quarterly stock price $74.11 per share | $ / shares	$ 1,223
0.50% Notes due 2016 | Permanent Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax	$ 76,228,000	61,723,000
0.50% Notes due 2016 | Temporary Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax		14,507,000
1.25% Notes due 2018
Debt Instrument [Line Items]
Carrying value, long-term	410,067,000
Carrying value, current portion		402,320,000
Unamortized discount	39,887,000	47,680,000
Principal amount	$ 449,954,000	450,000,000		$ 450,000,000
Remaining amortization period (years)	2 years 4 months 24 days
Effective interest rate on liability component	5.27%
Fair Value of Notes (Level 2)	$ 643,434,000
Conversion rate (shares of common stock per $1,000 principal amount of notes)	16.2107
Conversion price (per share of common stock) | $ / shares	$ 61.69
If-converted value in excess of par value	$ 136,416,000
Estimated share dilution using average quarterly stock price $74.11 per share | $ / shares	$ 1,223
1.25% Notes due 2018 | Permanent Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax	$ 104,886,000	57,215,000
1.25% Notes due 2018 | Temporary Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax		47,679,000
2.625% Notes due 2041
Debt Instrument [Line Items]
Carrying value, current portion	522,249,000	520,313,000
Unamortized discount	177,662,000	179,622,000
Principal amount	$ 699,911,000	699,935,000	$ 700,000,000
Remaining amortization period (years)	25 years 4 months 24 days
Effective interest rate on liability component	4.28%
Fair Value of Notes (Level 2)	$ 1,634,292,000
Conversion rate (shares of common stock per $1,000 principal amount of notes)	29.0921
Conversion price (per share of common stock) | $ / shares	$ 34.37
If-converted value in excess of par value	$ 936,978,000
Estimated share dilution using average quarterly stock price $74.11 per share | $ / shares	$ 10,918
2.625% Notes due 2041 | Permanent Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax	$ 150,415,000	148,487,000
2.625% Notes due 2041 | Temporary Equity
Debt Instrument [Line Items]
Carrying amount of equity component, net of tax	$ 177,662,000	$ 179,622,000