Fair Values (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Investment securities:
Equity securities	$ 313	$ 475
Debt securities and other	8,956	13,535
Derivatives	1,790	1,089
Total assets	11,059	15,099
Level 1 [Member]
Investment securities:
Equity securities	313	475
Debt securities and other	0	0
Derivatives	0	0
Total assets	313	475
Level 2 [Member]
Investment securities:
Equity securities	0	0
Debt securities and other	8,956	13,535
Derivatives	1,790	1,089
Total assets	10,746	14,624
Level 3 [Member]
Investment securities:
Total assets	$ 0	$ 0

For an unclassified balance sheet, this item represents equity securities categorized neither as held-to-maturity nor trading.

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

- Definition

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References+ Details