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Restructuring and Related Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018	Jun. 30, 2019	Jun. 29, 2019
Summary of various restructuring plans
Balance at the beginning of the period			$ 8.8
Restructuring and related (benefits) charges	$ (0.9)	$ 0.3	(0.6)	$ 15.1
Cash Settlements			(2.3)
Non-cash Settlements and Other Adjustments			(0.5)
Balance at the end of the period	5.4		5.4
Lease liability	43.8		43.8
Noncurrent restructuring accrual	5.4		5.4			$ 8.6
Noncurrent restructuring accrual						$ 0.2
NSE, including AW Restructuring Plan
Summary of various restructuring plans
Balance at the beginning of the period			8.7
Restructuring and related (benefits) charges	(0.9)		(0.6)
Cash Settlements			(2.3)
Non-cash Settlements and Other Adjustments			(0.4)
Balance at the end of the period	5.4		5.4
Other Plans - prior to fiscal 2017
Summary of various restructuring plans
Balance at the beginning of the period			0.1
Restructuring and related (benefits) charges	0.0		0.0
Cash Settlements			0.0
Non-cash Settlements and Other Adjustments			(0.1)
Balance at the end of the period	$ 0.0		$ 0.0
Accounting Standards Update 2016-02 \| NSE, Including AW And Other Plans
Summary of various restructuring plans
Lease liability					$ 0.2