Share-Based Compensation - Cash Received and Aggregate Intrinsic Value of Stock Options Exercised (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 25, 2016	Jun. 27, 2015	Jun. 28, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Cash received	$ 16.6	$ 36.2	$ 71.7
Aggregate intrinsic value	$ 29.7	$ 69.9	$ 79.3

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration