Netting Arrangements (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Securities Purchased under Agreements to Resell or Similar Arrangements [Member]
Securities Received as Collateral [Abstract]
Fair value of non-cash collateral accepted	$ 32,300,000,000	$ 50,700,000,000
Fair value of non-cash collateral accepted that can be resold or repledged	29,000,000,000	39,800,000,000
Fair value of securities accepted as collateral that have been resold or repledged	0	0
OTC Risk Management Derivatives [Member]
Securities Received as Collateral [Abstract]
Fair value of non-cash collateral accepted	$ 12,000,000	$ 24,000,000

Fair value of collateral permitted, by contact or custom, to be sold or re-pledged.

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- Definition

Fair value of the collateral, or portion thereof, that has been re-pledged, delivered, or otherwise used.

+ References

+ Details

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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 FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 30

-Section 50

-Paragraph 1A

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729

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=7517284&loc=d3e93645-111703

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