Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill	$ 1,262.4	$ 1,297.1
Finite-lived:
Gross	482.6	463.3
Accumulated Amortization	382.6	367.7
Net	100.0	95.6
Indefinite-lived:
Gross	176.3	150.7
Total intangible assets
Gross	658.9	614.0
Accumulated Amortization	382.6	367.7
Net	276.3	246.3
Tradenames
Indefinite-lived:
Gross	52.0	52.0
Reacquired franchise rights
Indefinite-lived:
Gross	124.3	98.7
Customer relationships
Finite-lived:
Gross	464.2	444.8
Accumulated Amortization	365.5	351.7
Net	98.7	93.1
Other
Finite-lived:
Gross	18.4	18.5
Accumulated Amortization	17.1	16.0
Net	$ 1.3	$ 2.5