Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate	(2.12%)	9.54%	13.98%	27.97%
Effective income tax expense (benefit) attributable to the pension plan	$ (11.3)		$ (33.2)
Tax cuts and jobs act, tax benefit from pension plan contribution		$ 44.4
Excess tax benefits of equity-based compensation and tax law changes in foreign jurisdictions		14.9		$ 45.7
Impact of changes in tax law in foreign jurisdictions		$ 8.1
Tax act, transition taxes	15.1
Tax act, deferred tax assets	3.2
Unrecognized tax benefits	26.6		26.6
Liability recorded for interest and penalties related to unrecognized tax benefits	$ 4.6		$ 4.6