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Goodwill And Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]    
2014 (excludes amortization through September 30, 2014) $ 23  
2015 87  
2016 76  
2017 69  
2018 67  
Subsequent years 313  
Net Carrying Amount $ 635 $ 472