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Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill	$ 1,219.1	$ 1,225.8
Finite-lived:
Gross	491.7	494.9
Accumulated Amortization	432.3	425.4
Net	59.4	69.5
Indefinite-lived:
Gross	178.0	179.1
Total intangible assets
Gross	669.7	674.0
Accumulated Amortization	432.3	425.4
Net	237.4	248.6
Tradenames
Indefinite-lived:
Gross	52.0	52.0
Reacquired franchise rights
Indefinite-lived:
Gross	126.0	127.1
Customer relationships
Finite-lived:
Gross	468.8	473.0
Accumulated Amortization	413.5	403.8
Net	55.3	69.2
Other
Finite-lived:
Gross	22.9	21.9
Accumulated Amortization	18.8	21.6
Net	$ 4.1	$ 0.3

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