SUPPLEMENTAL CASH FLOW INFORMATION (Non-Cash Investing and Financing Activities) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2020		Jun. 26, 2019	Jun. 27, 2018
Retirement of fully depreciated assets	$ 32.3		$ 28.9	$ 32.9
Accrued capital expenditures	7.1		9.3	11.3
Capital lease additions	0.0	[1]	15.1	7.9
Dividend Declared [Member]
Dividends declared but not paid	$ 1.2		$ 15.6	$ 17.0

[1] Capital lease additions for the fiscal year ended June 24, 2020 are now disclosed as part of the finance lease disclosures in Note 4 - Leases, “Consolidated Statement of Cash Flows Disclosure of Lease Amounts” section.