Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Narrative) (Details)

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Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of Intangible Assets $ 125 $ 124 $ 374 $ 360