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Goodwill And Other Intangibles (Estimated Future Aggregate Amortization Expense) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]    
2014 (excludes amortization through June 30, 2014) $ 45  
2015 86  
2016 76  
2017 67  
2018 63  
Subsequent years 304  
Net Carrying Amount $ 641 $ 472