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Financial Statement Details - Other Operating Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 29, 2019	Dec. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Factory optimization restructuring	$ 1.2	$ 0.0	$ 2.4	$ 0.0
Severance and other restructuring	0.0	0.0	0.8	2.6
Total restructuring costs	1.2	0.0	3.2	2.6
Project, transformation and transaction costs	10.8	0.2	13.4	0.6
Factory optimization start-up costs	1.5	0.0	2.9	0.0
Non-restructuring related executive severance	0.3	0.0	1.5	0.0
Other operating expense	$ 13.8	$ 0.2	$ 21.0	$ 3.2

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