CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
Other than Temporary Impairment OTTI Losses on securities available-for-sale and held-to- maturity, were recognized in other revenues and losses in the non-credit component recognized in AOCI	$ 79

Amount after tax of other than temporary impairment (OTTI) loss on a debt security, categorized as either available-for-sale or held-to-maturity. Includes after tax portion attributable to the noncontrolling interest.

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15D

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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