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Goodwill And Intangible Assets (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Franchise Rights [Member]	Mar. 31, 2014 Goodwill [Member]
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 1,257.8	$ 1,259.6
Franchise rights - indefinite-lived	329.3	329.3
Other intangibles	11.1	11.1
Intangible assets gross (excluding goodwill)	340.4	340.4
Less: accumulated amortization	(5.5)	(5.3)
Other intangible assets, net	$ 334.9	$ 335.1
Date of annual goodwill and indefinite lived intangible assets impairment test			April 30	April 30

X

- Definition

The date of the annual goodwill and indefinite-lived franchise rights impairment test.

+ References

No definition available.

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X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

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- Definition

Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through a franchise arrangement having an indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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