Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Narrative) (Details)

v2.4.0.6
Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Goodwill and Intangible Assets Disclosure [Abstract]    
Amortization expense for intangible assets with finite useful lives $ 217 $ 221