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Discontinued Operations Discontinued Operations (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]    
Expected Proceeds from Divestiture of Businesses $ 52  
Assets of Disposal Group, Including Discontinued Operation   439
Liabilities of Disposal Group, Including Discontinued Operation   $ 257