CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 298.8	$ 254.8	$ 318.8	$ 377.1
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on cash flow hedging derivatives, net	2.6	(3.2)	5.3	1.3
Unrealized gains (losses) on available-for-sale investments, net	0.0	0.1	0.0	0.1
Foreign currency translation adjustments	8.4	(0.3)	(5.4)	(10.1)
Other	0.0	0.0	(1.7)	0.0
Other comprehensive income (loss), net of tax	11.0	(3.4)	(1.8)	(8.7)
Comprehensive income	$ 309.8	$ 251.4	$ 317.0	$ 368.4