Goodwill and Other Intangible Assets (Indefinite and Finite Lived Assets) (Details) - USD ($) $ in Millions	Dec. 28, 2019	Jun. 30, 2019	Jun. 29, 2019
Intangible assets subject to amortization:
Gross Carrying Amount	$ 100.5		$ 193.7
Accumulated amortization	(27.5)		(58.6)
Total	73.0		135.1
Intangible assets not subject to amortization:
Intangible assets, gross (excluding goodwill)	1,677.3		1,770.5
Intangible assets, net (excluding goodwill)	1,649.8	$ 1,653.4	1,711.9
Trademarks and trade names
Intangible assets not subject to amortization:
Indefinite-lived intangible assets (excluding goodwill)	1,576.8		1,576.8
Customer relationships
Intangible assets subject to amortization:
Gross Carrying Amount	100.5		100.6
Accumulated amortization	(27.5)		(24.0)
Total	73.0		76.6
Favorable lease rights
Intangible assets subject to amortization:
Gross Carrying Amount	0.0		93.1
Accumulated amortization	0.0		(34.6)
Total	$ 0.0		$ 58.5