Recently Issued Accounting Pronouncements - Expected Impact on Balance Sheet (Details) - USD ($) $ in Millions	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017	Jul. 03, 2016	Jul. 02, 2016
ASSETS
Accounts receivable, net	$ 233.8	$ 218.6
Prepayments and other assets	53.8	56.3
Deferred income taxes	108.4	114.3
Other non-current assets	17.3	15.4
Total assets	1,815.1	2,026.8
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deferred revenue	55.3	60.6
Accrued payroll and related expenses	58.7	52.8
Other current liabilities	72.4	78.9
Other non-current liabilities	226.5	180.8
Total stockholders’ equity	725.8	734.9	$ 803.5		$ 689.3
Total liabilities and stockholders’ equity	$ 1,815.1	2,026.8
As Reported
ASSETS
Accounts receivable, net		217.5
Prepayments and other assets		54.8
Deferred income taxes		114.5
Other non-current assets		13.6
Total assets		2,022.6
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deferred revenue		71.9
Accrued payroll and related expenses		51.4
Other current liabilities		77.0
Other non-current liabilities		182.8
Total stockholders’ equity		720.7
Total liabilities and stockholders’ equity		2,022.6
Accounting Standards Update 2014-09
LIABILITIES AND STOCKHOLDERS’ EQUITY
Total stockholders’ equity				$ 23.8
Accounting Standards Update 2014-09 | Adjustment
ASSETS
Accounts receivable, net		1.1
Prepayments and other assets		1.5
Deferred income taxes		(0.2)
Other non-current assets		1.8
Total assets		4.2
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deferred revenue		(11.3)
Accrued payroll and related expenses		1.4
Other current liabilities		1.9
Other non-current liabilities		(2.0)
Total stockholders’ equity		14.2
Total liabilities and stockholders’ equity		$ 4.2