Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 26, 2012
Revised Unsecured Senior Credit Facility [Member]
Debt [Line Items]
One-month LIBOR	0.22%
Revised Unsecured Senior Credit Facility [Member] | Maximum [Member]
Debt [Line Items]
Basis spread on variable rate	2.50%
Revised Unsecured Senior Credit Facility [Member] | Minimum [Member]
Debt [Line Items]
Basis spread on variable rate	1.63%
Revolver Borrowings [Member]
Debt [Line Items]
Drawn from revolver to fund share repurchases	$ 90
Debt available under revolving credit facility	$ 120