Goodwill And Identifiable Intangible Assets (Narrative) (Details) (USD $) In Billions, unless otherwise specified	3 Months Ended
Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of goodwill	$ 1.2

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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