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Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill	$ 1,215.0	$ 1,225.8
Finite-lived:
Gross	490.0	494.9
Accumulated Amortization	427.0	425.4
Net	63.0	69.5
Indefinite-lived:
Gross	177.4	179.1
Total intangible assets
Gross	667.4	674.0
Accumulated Amortization	427.0	425.4
Net	240.4	248.6
Tradenames
Indefinite-lived:
Gross	52.0	52.0
Reacquired franchise rights
Indefinite-lived:
Gross	125.4	127.1
Customer relationships
Finite-lived:
Gross	467.4	473.0
Accumulated Amortization	408.9	403.8
Net	58.5	69.2
Other
Finite-lived:
Gross	22.6	21.9
Accumulated Amortization	18.1	21.6
Net	$ 4.5	$ 0.3

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Intangible Assets, Accumulated Amortization (Excluding Goodwill), Total.

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