Stock-Based Compensation - Compensation by Function (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Apr. 01, 2017	Apr. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation	$ 8.1	$ 9.1	$ 25.9	$ 34.0
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation	0.7	1.1	2.7	3.7
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation	1.3	2.0	4.6	6.7
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation	$ 6.1	$ 6.0	$ 18.6	$ 23.6