Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Goodwill [Abstract]
Goodwill, Gross	$ 1,056.8	[1]	$ 1,075.2	[1]
Accumulated Amortization	0	[1]	0	[1]
Goodwill, Net	1,056.8	[1]	1,075.2	[1]
Accumulated impairment loss	513.4		513.4
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	367.0		411.7
Finite-Lived Intangible Assets, Accumulated Amortization	241.4		276.2
Finite-Lived Intangible Assets, Net	125.6		135.5
Indefinite-Lived [Abstract]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	151.0		151.3
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	151.0		151.3
Intangible Assets (Excluding Goodwill) [Abstract]
Intangible Assets, Gross (Excluding Goodwill), Total	518.0		563.0
Intangible Assets, Accumulated Amortization (Excluding Goodwill), Total	241.4		276.2
Intangible Assets, Net (Excluding Goodwill), Total	276.6		286.8
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract]
Estimated amortization expense, remainder of the current fiscal year	21.7
Estimated amortization expense, 2016	25.4
Estimated amortization expense, 2017	22.4
Estimated amortization expense, 2018	19.8
Estimated amortization expense, 2019	15.8
Estimated amortization expense, 2020	12.9
Tradenames [Member]
Indefinite-Lived [Abstract]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	54.0	[2]	54.0	[2]
Accumulated Amortization on Indefinite-Lived Intangible Assets	0	[2]	0	[2]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	54.0	[2]	54.0	[2]
Accumulated Impairment Loss	139.5		139.5
Reacquired Franchise Rights [Member]
Indefinite-Lived [Abstract]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	97.0		97.3
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	97.0		97.3
Technology [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	0		19.6
Finite-Lived Intangible Assets, Accumulated Amortization	0		19.6
Finite-Lived Intangible Assets, Net	0		0
Franchise Agreements [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	0		18.0
Finite-Lived Intangible Assets, Accumulated Amortization	0		18.0
Finite-Lived Intangible Assets, Net	0		0
Customer Relationships [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	357.4		359.9
Finite-Lived Intangible Assets, Accumulated Amortization	232.4		225.6
Finite-Lived Intangible Assets, Net	125.0		134.3
Other [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	9.6		14.2
Finite-Lived Intangible Assets, Accumulated Amortization	9.0		13.0
Finite-Lived Intangible Assets, Net	$ 0.6		$ 1.2

[1] Balances were net of accumulated impairment loss of $513.4 as of both March 31, 2015 and December 31, 2014.

[2] Balances were net of accumulated impairment loss of $139.5 as of both March 31, 2015 and December 31, 2014.