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Goodwill And Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]    
2014 $ 77  
2015 75  
2016 68  
2017 61  
2018 58  
Subsequent years 133  
Net Carrying Amount $ 472 $ 469