Supplemental Cash Flow Information - Non-Cash Investing and Financing Activities (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 26, 2018	Sep. 27, 2017
Other Significant Noncash Transactions [Line Items]
Retirement of fully depreciated assets	$ 8.5	$ 16.1
Dividends declared but not paid	15.5	18.8
Accrued capital expenditures	8.9	6.4
Capital lease additions	0.3	2.3
Dividend Declared [Member]
Other Significant Noncash Transactions [Line Items]
Dividends declared but not paid	$ 15.5	$ 18.8

Future cash outflow to pay for purchases of fixed assets that have occurred.

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