v2.4.1.9
Description Of Business And Summary Of Significant Accounting Policies Goodwill and Other Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill impairment $ 0us-gaap_GoodwillImpairmentLoss $ 0us-gaap_GoodwillImpairmentLoss $ 0us-gaap_GoodwillImpairmentLoss
Finite-Lived Intangible Assets [Line Items]      
Impairment of Intangible Assets (Excluding Goodwill) $ 0us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill $ 0us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill $ 0us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite Lived Intangible Assets, Estimated Useful Lives 11 to 14 years    
Trade Name [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite Lived Intangible Assets, Estimated Useful Lives 20 years    
Internally Developed Software [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite Lived Intangible Assets, Estimated Useful Lives 3 to 5 years    
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite Lived Intangible Assets, Estimated Useful Lives 1 to 10 years