Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Goodwill [Abstract]
Goodwill, Gross	$ 1,060.0	[1]	$ 1,041.3	[1]
Accumulated Amortization	0	[1]	0	[1]
Goodwill, Net	1,060.0	[1]	1,041.3	[1]
Accumulated impairment loss	513.4		513.4
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	400.8		391.8
Finite-Lived Intangible Assets, Accumulated Amortization	238.8		213.2
Finite-Lived Intangible Assets, Net	162.0		178.6
Indefinite-Lived [Abstract]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	151.9		152.0
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	151.9		152.0
Intangible Assets (Excluding Goodwill) [Abstract]
Intangible Assets, Gross (Excluding Goodwill), Total	552.7		543.8
Intangible Assets, Accumulated Amortization (Excluding Goodwill), Total	238.8		213.2
Intangible Assets, Net (Excluding Goodwill), Total	313.9		330.6
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract]
Estimated amortization expense, remainder of the current fiscal year	8.6
Estimated amortization expense, 2014	29.0
Estimated amortization expense, 2015	25.8
Estimated amortization expense, 2016	22.7
Estimated amortization expense, 2017	20.2
Estimated amortization expense, 2018	17.9
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	97.9		98.0
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	97.9		98.0
Technology [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	19.6		19.6
Finite-Lived Intangible Assets, Accumulated Amortization	19.6		19.6
Finite-Lived Intangible Assets, Net	0		0
Franchise Agreements [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	18.0		18.0
Finite-Lived Intangible Assets, Accumulated Amortization	17.4		16.1
Finite-Lived Intangible Assets, Net	0.6		1.9
Customer Relationships [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	347.2		339.0
Finite-Lived Intangible Assets, Accumulated Amortization	188.0		165.1
Finite-Lived Intangible Assets, Net	159.2		173.9
Other [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	16.0		15.2
Finite-Lived Intangible Assets, Accumulated Amortization	13.8		12.4
Finite-Lived Intangible Assets, Net	$ 2.2		$ 2.8

[1] Balances were net of accumulated impairment loss of $513.4 as of both September 30, 2013 and December 31, 2012.

[2] Balances were net of accumulated impairment loss of $139.5 as of both September 30, 2013 and December 31, 2012.