Commitments, Contingencies and Guarantees (Tables)

9 Months Ended

Aug. 31, 2011

Commitments, Contingencies and Guarantees [Abstract]

Commitments and guarantees

	Expected Maturity Date
					2013		2015		2017		Notional/
					and		and		and		Maximum
	2011		2012		2014		2016		Later		Payout
Equity commitments	$	0.5	$	0.2	$	7.6	$	2.9	$	631.1	$	642.3
Loan commitments		33.2		12.1		381.0		67.6		33.0		526.9
Mortgage-related commitments		542.4		23.6		815.9		—		—		1,381.9
Forward starting repos		0.2		—		—		—		—		0.2
Derivative contracts:
Derivative contracts — non credit related		13,681.8		12,499.3		50,550.6		—		—		76,731.7
Derivative contracts — credit related		10.0		—		392.0		586.2		40.0		1,028.2
Total derivative contracts		13,691.8		12,499.3		50,942.6		586.2		40.0		77,759.9
	$	14,268.1	$	12,535.2	$	52,147.1	$	656.7	$	704.1	$	80,311.2

External credit ratings of the underlying or referenced assets for credit related commitments, guarantees and derivatives

	External Credit Rating
							Below				Notional/
	AAA/						Investment				Maximum
	Aaa		AA/Aa		BBB/Baa		Grade		Unrated		Payout
Loan commitments	$	—	$	30.0	$	73.0	$	54.1	$	369.8	$	526.9
Derivative contracts- credit related:
Index credit default swaps		20.0		345.0		—		412.0		251.2		1,028.2
Total credit related commitments	$	20.0	$	375.0	$	73.0	$	466.1	$	621.0	$	1,555.1

Corporate Lending Commitments and Funded Loans

							Total		Corporate		Corporate
							Corporate		Lending		Lending
					Greater Than		Lending		Exposure at		Commitments
Credit Ratings	0 - 12 Months		1 - 5 Years		5 Years		Exposure (1)		Fair Value (2)		(3)
A	$	10.0	$	—	$	20.0	$	30.0	$	—	$	30.0
BBB		32.7		43.3		8.0		84.0		11.0		73.0
Non-investment grade		42.1		38.7		—		80.8		26.7		54.1
Unrated		31.3		635.5		—		666.8		297.0		369.8
Total	$	116.1	$	717.5	$	28.0	$	861.6	$	334.7	$	526.9

(1)	Total corporate lending exposure represents the potential loss assuming the fair value of funded loans and lending commitments were zero.
(2)	The corporate lending exposure carried at fair value includes $337.1 million of funded loans included in Financial instruments owned — Loans and $(2.4) million of lending commitments recorded in Financial instruments sold — Derivatives in the Consolidated Statement of Financial Condition as of August 31, 2011.
(3)	Amounts represent the notional amount of lending commitments less the amount of funded commitments reflected in the Consolidated Statements of Financial Condition.