Goodwill and Intangible Assets, Net (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 1,259.6	[1]	$ 1,237.4	[1]	$ 1,172.2	[1]
Indefinite-Lived Franchise Rights	329.3		285.7
Other intangibles	11.1		9.9
Intangible assets, gross	340.4		295.6
Less: accumulated amortization	(5.3)		(4.3)
Intangible assets, net	$ 335.1		$ 291.3

[1] Net of accumulated impairment losses of $1.47 billion ($1.25 billion after-tax) associated with our single reporting unit (prior to September 30, 2008, our reporting unit structure was comprised of a single reporting unit) and $140.0 million ($119.0 million after-tax) associated with our Domestic reporting unit, both of which were recorded during the year ended December 31, 2008.