Accumulted Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014
Accumulated Other Comprehensive Income (Loss) [Abstract]
Foreign currency translation, net of income taxes of $15 million at July 3, 2015	$ (62.0)	$ 7.0
Net unrealized loss on hedging derivatives, net of income taxes of $12 million at July 3, 2015	(19.0)	0.0
Unamortized loss on treasury lock, net of income taxes	0.0	(2.0)
Unrecognized postretirement obligations, net of income taxes of $42 million and $10 million at July 3, 2015 and June 27, 2014, respectively	65.0	(20.0)
Accumulated other comprehensive loss	(16.0)	(15.0)
IncomeTaxesOnUnrecognizedTaxBenefits [Abstract]
Tax effect on unrealized loss on hedging derivatives		12.0
Tax effect on unrecognized post-retirement obligations	$ 42.0	$ 10.0