Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill	$ 1,231.8	$ 1,297.1
Finite-lived:
Gross	477.3	463.3
Accumulated Amortization	380.2	367.7
Net	97.1	95.6
Indefinite-lived:
Gross	175.8	150.7
Total intangible assets
Gross	653.1	614.0
Accumulated Amortization	380.2	367.7
Net	272.9	246.3
Tradenames
Indefinite-lived:
Gross	52.0	52.0
Reacquired franchise rights
Indefinite-lived:
Gross	123.8	98.7
Customer relationships
Finite-lived:
Gross	458.8	444.8
Accumulated Amortization	366.8	351.7
Net	92.0	93.1
Other
Finite-lived:
Gross	18.5	18.5
Accumulated Amortization	13.4	16.0
Net	$ 5.1	$ 2.5