1.0.0.3falseSale of Bankruptcy Claims Related to a Derivative Counterparty.false1$falsefalseiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0sharesStandardhttp://www.xbrl.org/2003/instanceshares053ms_SaleOfBankruptcyClaimsRelatedToADerivativeCounterpartyTextBlockmsfalsenadurationstringDisclosure describes the sale of bankruptcy claims related to a derivative counterparty.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalse00<div>
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<p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><b><font style="FONT-FAMILY: Times New Roman" size="2"><b>16.    Sale of Bankruptcy Claims Related
to a Derivative Counterparty.</b></font></b></p>
<p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: -6px"><font size="1"> </font></p>
<p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><font style="FONT-FAMILY: Times New Roman" size="2">During 2009, the Company
entered into multiple participation agreements with certain
investors whereby the Company sold undivided participating
interests representing 81% (or $1,105 million) of its claims
totaling $1,362 million, pursuant to International Swaps and
Derivatives Association (“ISDA”) master agreements,
against a derivative counterparty that filed for bankruptcy
protection. The Company received cash proceeds of $429 million and
recorded a gain on sale of $319 million in 2009. The gain is
reflected in the consolidated statement of income in Principal
transactions-trading revenues within the Institutional Securities
business segment.</font></p>
<p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><font size="1"> </font></p>
<p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><font style="FONT-FAMILY: Times New Roman" size="2">As a result of the
bankruptcy of the derivative counterparty, the Company, as
contractually entitled, exercised remedies as the non-defaulting
party and determined the value of the claims under the ISDA master
agreements in a commercially reasonable manner. The Company filed
its claims with the bankruptcy court. In connection with the sale
of the undivided participating interests in a portion of the
claims, the Company provided certain representations and warranties
related to the allowance of the amount stated in the claims
submitted to the bankruptcy court. The bankruptcy court will be
evaluating all of the claims filed against the derivative
counterparty. To the extent, in the future, any portion of the
stated claims is disallowed or reduced by the bankruptcy court in
excess of a certain amount, then the Company must refund a portion
of the purchase price plus interest from the date of the
participation agreements to the repayment date. The maximum amount
that the Company could be required to refund is the total proceeds
of $429 million plus interest. The Company recorded a liability for
the fair value of this possible disallowance. The fair value was
determined by assessing mid-market values of the underlying
transactions, where possible, prevailing bid-offer spreads around
the time of the bankruptcy filing, and applying valuation
adjustments related to estimating unwind costs. The investors,
however, bear full price risk associated with the allowed claims as
it relates to the liquidation proceeds from the bankruptcy estate.
The Company also agreed to service the claims and, as such,
recorded a liability for the fair value of the servicing
obligation. The Company will continue to measure these obligations
at fair value with changes in fair value recorded in earnings.
These obligations are reflected in the consolidated statement of
financial condition as Financial instruments sold, not yet
purchased—derivatives and other contracts, in Note 4 as Level
3 instruments, and in Note 10 as Derivatives not designated as
accounting hedges. The disallowance obligation is also reflected in
Note 11 in the guarantees table.</font></p>
</div>16.    Sale of Bankruptcy Claims Related
to a Derivative Counterparty.
 
During 2009, the Company
entered into multiple participationfalsefalseDisclosure describes the sale of bankruptcy claims related to a derivative counterparty.No authoritative reference available.falsefalse11falseUnKnownUnKnownUnKnownfalsetrue