CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 31, 2016	Dec. 26, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 199.7	$ 170.1	$ 317.1	$ 266.5
Other comprehensive loss, net of tax:
Unrealized gains (losses) on cash flow hedging derivatives, net	9.3	(0.4)	12.2	(3.7)
Unrealized losses on available-for-sale investments, net	(0.5)	(1.4)	(1.0)	(1.9)
Foreign currency translation adjustments	(56.9)	(3.4)	(54.0)	(25.0)
Other comprehensive loss, net of tax	(48.1)	(5.2)	(42.8)	(30.6)
Comprehensive income	$ 151.6	$ 164.9	$ 274.3	$ 235.9