Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions where counterparty does not have the right to re-pledge such.

+ References+ Details

The carrying value as of the balance sheet date of securities loaned to other broker dealers, typically used by such parties to cover short sales, secured by cash or other securities furnished by such parties until the borrowing is closed.

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- Definition

The carrying value as of the balance sheet date of the assets received as collateral against securities loaned to other broker-dealers. Borrowers of securities generally are required to provide collateral to the lenders of securities, commonly cash but sometimes other securities or standby letters of credit, with a value slightly higher than that of the securities borrowed. In instances where the entity is permitted to sell or re-pledge these securities, the entity reports the fair value of the collateral received and the related obligation to return the collateral as a liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 4
-Paragraph 49
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 10
-Section 05
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=6901665&loc=d3e93645-111703

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 17
-Subparagraph a(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6862952&loc=d3e113969-111729

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 15
-Subparagraph a, b, c, d
-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 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 91
-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

Guarantees, Pledged Assets and Collateral Textuals (Details) (USD $)									3 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2011 Available for sale Securities [Member]	Dec. 31, 2010 Available for sale Securities [Member]	Jun. 30, 2011 Loans and Finance Receivables [Member]	Dec. 31, 2010 Loans and Finance Receivables [Member]	Jun. 30, 2011 Trading and Available-for-Sale Securities [Member]	Dec. 31, 2010 Trading and Available-for-Sale Securities [Member]	Jun. 30, 2011 Loans and MHFS sold with recourse [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities owned and pledged as collateral available to be repledged, Fair Value			$ 0	$ 0	$ 0	$ 0	$ 28,200,000,000	$ 27,300,000,000
Securities owned and pledged as collateral not available to be repledged, Fair Value	373,337,000,000	406,814,000,000	87,926,000,000	94,212,000,000	285,411,000,000	312,602,000,000	4,400,000,000	5,900,000,000
Loans repurchased									9,000,000
Guarantees (Textuals) [Abstract]
Collateral	8,500,000,000	14,000,000,000
Securities Loaned	8,400,000,000	13,600,000,000
Collateral received with the right to sell or repledge	20,600,000,000	22,500,000,000
Collateral sold or repledged	$ 19,700,000,000	$ 14,600,000,000