Leases - Right Of Use Assets and Lease Liability (Details) - USD ($) $ in Millions	Dec. 28, 2019	Jun. 30, 2019
ASSETS
Operating lease right-of-use assets	$ 1,996.5	$ 2,133.7
Finance leases	3.6
Total lease assets	2,000.1
Operating leases:
Current portion of operating lease liabilities	329.8	362.3
Long-term operating lease liabilities	1,901.2	$ 1,961.6
Total operating lease liabilities	2,231.0
Finance leases:
Current lease liabilities	0.8
Long-term lease liabilities	4.9
Total finance lease liabilities	5.7
Total lease liabilities	$ 2,236.7