Goodwill and Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Goodwill [Abstract]
Goodwill, Gross	$ 1,092.6	[1]	$ 1,090.9	[1]
Accumulated Amortization	0	[1]	0	[1]
Goodwill, Net	1,092.6	[1]	1,090.9	[1]
Accumulated impairment loss	513.4		513.4
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	415.0		405.3
Finite-Lived Intangible Assets, Accumulated Amortization	269.3		247.9
Finite-Lived Intangible Assets, Net	145.7		157.4
Indefinite-Lived [Abstract]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	151.5		151.7
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	151.5		151.7
Intangible Assets (Excluding Goodwill) [Abstract]
Intangible Assets, Gross (Excluding Goodwill), Total	566.5		557.0
Intangible Assets, Accumulated Amortization (Excluding Goodwill), Total	269.3		247.9
Intangible Assets, Net (Excluding Goodwill), Total	297.2		309.1
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract]
Estimated amortization expense, remainder of the current fiscal year	8.4
Estimated amortization expense, 2015	30.1
Estimated amortization expense, 2016	27.0
Estimated amortization expense, 2017	22.9
Estimated amortization expense, 2018	20.3
Estimated amortization expense, 2019	15.8
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	97.5		97.7
Accumulated Amortization on Indefinite-Lived Intangible Assets	0		0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	97.5		97.7
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	18.0		17.9
Finite-Lived Intangible Assets, Net	0		0.1
Customer Relationships [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	362.1		351.5
Finite-Lived Intangible Assets, Accumulated Amortization	218.5		196.4
Finite-Lived Intangible Assets, Net	143.6		155.1
Other [Member]
Finite-Lived [Abstract]
Finite-Lived Intangible Assets, Gross	15.3		16.2
Finite-Lived Intangible Assets, Accumulated Amortization	13.2		14.0
Finite-Lived Intangible Assets, Net	$ 2.1		$ 2.2

[1] Balances were net of accumulated impairment loss of $513.4 as of both September 30, 2014 and December 31, 2013.

[2] Balances were net of accumulated impairment loss of $139.5 as of both September 30, 2014 and December 31, 2013.