Fair Value Measurement-Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Level 3 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			$ 0
Level 3 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0
Netting | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0	[1]
Netting | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0	[1]
Fair Value, Measurements, Recurring | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	12,181	[2]	11,354	[2]
Fair Value, Measurements, Recurring | Alt-A RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,101	[2]	1,142	[2]
Fair Value, Measurements, Recurring | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,716	[2]	2,871	[2]
Fair Value, Measurements, Recurring | Alt-A RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,637	[2],[3]	2,695	[2],[3]
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value	23,160		21,872
Percentage of assets prior to netting (percent)	20.00%		18.00%
Derivative liabilities			1,247
Fair value of liabilities	2,074		1,263
Percentage of liabilities prior to netting (percent)	7.00%		4.00%
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	16,679		16,087
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	13,572		12,852
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	150		40
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	17		19
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	849	[4]	938	[4]
Fair Value, Measurements, Recurring | Level 1 | Securities available-for-sale | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,091		2,238
Fair Value, Measurements, Recurring | Level 1 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	4,867	[4]	4,559	[4]
Derivative Assets			278
Trading assets	5,058		4,837
Fair Value, Measurements, Recurring | Level 1 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			0
Fair Value, Measurements, Recurring | Level 1 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			274
Fair Value, Measurements, Recurring | Level 1 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	148	[5]	148	[5]
Subtotal assets of consolidated investment management funds, at fair value	21,885
Percentage of assets prior to netting (percent)	20.00%
Fair Value, Measurements, Recurring | Level 1 | Operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value			21,072
Percentage of assets prior to netting (percent)			19.00%
Fair Value, Measurements, Recurring | Level 1 | Investment Management funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Trading assets	226		61
Other assets	1,049		739
Subtotal assets of consolidated investment management funds, at fair value	1,275		800
Trading liabilities	147		16
Other liabilities	0		0
Fair value of liabilities	147		16
Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments			1,030
Derivative liabilities			217
Trading liabilities			1,247
Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			3
Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0
Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			214
Fair Value, Measurements, Recurring | Level 1 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0
Percentage of liabilities prior to netting (percent)			6.00%
Fair Value, Measurements, Recurring | Level 1 | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0
Fair Value, Measurements, Recurring | Level 1 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	492	[5]	193	[5]
Subtotal assets of consolidated investment management funds, at fair value	95,354		98,202
Percentage of assets prior to netting (percent)	80.00%		82.00%
Derivative liabilities			20,868
Long-term debt			321	[4]
Fair value of liabilities	29,163		30,983
Percentage of liabilities prior to netting (percent)	93.00%		96.00%
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	63,526		63,211
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	449		948
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	12,031		11,314
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	6,641	[4]	6,663	[4]
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	25,085		25,321
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,101		1,142
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Other RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,084		2,285
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,185		2,357
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,063		1,789
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Asset-backed CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,449		1,562
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Other asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	3,364		2,891
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,781		1,815
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,031		1,796
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	625		633
Fair Value, Measurements, Recurring | Level 2 | Securities available-for-sale | Grantor Trust Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,637	[3]	2,695	[3]
Fair Value, Measurements, Recurring | Level 2 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	3,095	[4]	4,338	[4]
Derivative Assets			18,706
Trading assets	20,155		23,044
Fair Value, Measurements, Recurring | Level 2 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			3,609
Fair Value, Measurements, Recurring | Level 2 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			395
Fair Value, Measurements, Recurring | Level 2 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	1,497		1,475
Subtotal assets of consolidated investment management funds, at fair value	85,178
Percentage of assets prior to netting (percent)	80.00%
Fair Value, Measurements, Recurring | Level 2 | Operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value			87,730
Percentage of assets prior to netting (percent)			81.00%
Fair Value, Measurements, Recurring | Level 2 | Investment Management funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Trading assets	10,034		10,336
Other assets	142		136
Subtotal assets of consolidated investment management funds, at fair value	10,176		10,472
Trading liabilities	9,855		10,069
Other liabilities	156		46
Fair value of liabilities	10,011		10,115
Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments			585
Derivative liabilities			19,459
Trading liabilities			20,044
Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			15,178
Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			3,536
Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			745
Fair Value, Measurements, Recurring | Level 2 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			503
Percentage of liabilities prior to netting (percent)			94.00%
Fair Value, Measurements, Recurring | Level 2 | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			167
Fair Value, Measurements, Recurring | Level 2 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			336
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value	141		139
Percentage of assets prior to netting (percent)	0.00%
Derivative liabilities			75
Fair value of liabilities	41		75
Percentage of liabilities prior to netting (percent)	0.00%		0.00%
Fair Value, Measurements, Recurring | Level 3 | Securities available-for-sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	11		11
Fair Value, Measurements, Recurring | Level 3 | Securities available-for-sale | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	11	[4]	11	[4]
Fair Value, Measurements, Recurring | Level 3 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	1	[4]	1	[4]
Derivative Assets			22
Trading assets	20		23
Fair Value, Measurements, Recurring | Level 3 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			1
Fair Value, Measurements, Recurring | Level 3 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			15
Fair Value, Measurements, Recurring | Level 3 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	110	[5]	105	[5]
Subtotal assets of consolidated investment management funds, at fair value	141
Percentage of assets prior to netting (percent)	0.00%
Fair Value, Measurements, Recurring | Level 3 | Operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value			139
Fair Value, Measurements, Recurring | Level 3 | Investment Management funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Trading assets	0		0
Subtotal assets of consolidated investment management funds, at fair value	0		0
Trading liabilities	0		0
Other liabilities	0		0
Fair value of liabilities	0		0
Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			75
Trading liabilities			75
Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			31
Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			44
Fair Value, Measurements, Recurring | Level 3 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Percentage of liabilities prior to netting (percent)			0.00%
Fair Value, Measurements, Recurring | Netting
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value	(14,401)	[1]	(15,806)	[1]
Derivative liabilities			(14,421)	[1]
Fair value of liabilities	(13,856)	[1]	(14,421)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	0	[1],[4]
Derivative Assets			(15,806)	[1]
Trading assets	(14,401)	[1]	(15,806)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			(2,294)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			(281)	[1]
Fair Value, Measurements, Recurring | Netting | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	0	[1],[5]	0	[1],[5]
Subtotal assets of consolidated investment management funds, at fair value	(14,401)	[1]
Fair Value, Measurements, Recurring | Netting | Operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value			(15,806)	[1]
Fair Value, Measurements, Recurring | Netting | Investment Management funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Trading liabilities	0	[1]	0	[1]
Other liabilities	0	[1]	0	[1]
Fair value of liabilities	0	[1]	0	[1]
Fair Value, Measurements, Recurring | Netting | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			(14,421)	[1]
Trading liabilities			(14,421)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			(12,429)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			(1,711)	[1]
Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			(281)	[1]
Fair Value, Measurements, Recurring | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	750	[5]	446	[5]
Subtotal assets of consolidated investment management funds, at fair value	104,254		104,407
Derivative liabilities			7,769
Long-term debt			321	[4]
Fair value of liabilities	17,422		17,900
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	80,216		79,309
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	13,572		12,852
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | U.S. Government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	449		948
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	12,181		11,354
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	6,652	[4]	6,674	[4]
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	25,085		25,321
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,101		1,142
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Other RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,084		2,285
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,185		2,357
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,063		1,789
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Asset-backed CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,449		1,562
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Other asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	3,364		2,891
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	17		19
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	849	[4]	938	[4]
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,781		1,815
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,031		1,796
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,716		2,871
Fair Value, Measurements, Recurring | Carrying Amount | Securities available-for-sale | Grantor Trust Residential Mortgage Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,637	[3]	2,695	[3]
Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	7,963	[4]	8,898	[4]
Derivative Assets			3,200
Trading assets	10,832		12,098
Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			1,316
Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			403
Fair Value, Measurements, Recurring | Carrying Amount | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Other assets	1,755		1,728
Subtotal assets of consolidated investment management funds, at fair value	92,803
Fair Value, Measurements, Recurring | Carrying Amount | Operations
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Subtotal assets of consolidated investment management funds, at fair value			93,135
Fair Value, Measurements, Recurring | Carrying Amount | Investment Management funds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Trading assets	10,260		10,397
Other assets	1,191		875
Subtotal assets of consolidated investment management funds, at fair value	11,451		11,272
Trading liabilities	10,002		10,085
Other liabilities	156		46
Fair value of liabilities	10,158		10,131
Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments			1,615
Derivative liabilities			5,330
Trading liabilities			6,945
Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			2,783
Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			1,825
Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			722
Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			503
Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			167
Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities			336
Nondesignated | Fair Value, Measurements, Recurring | Level 1 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	191
Nondesignated | Fair Value, Measurements, Recurring | Level 1 | Trading Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	3		4
Nondesignated | Fair Value, Measurements, Recurring | Level 1 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0
Nondesignated | Fair Value, Measurements, Recurring | Level 1 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	188
Nondesignated | Fair Value, Measurements, Recurring | Level 2 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	17,060
Nondesignated | Fair Value, Measurements, Recurring | Level 2 | Trading Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	14,484		14,702
Nondesignated | Fair Value, Measurements, Recurring | Level 2 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	2,208
Nondesignated | Fair Value, Measurements, Recurring | Level 2 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	368
Nondesignated | Fair Value, Measurements, Recurring | Level 3 | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	19
Nondesignated | Fair Value, Measurements, Recurring | Level 3 | Trading Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	5		6
Nondesignated | Fair Value, Measurements, Recurring | Level 3 | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	1
Nondesignated | Fair Value, Measurements, Recurring | Level 3 | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	13
Nondesignated | Fair Value, Measurements, Recurring | Netting | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	(14,401)	[1]
Nondesignated | Fair Value, Measurements, Recurring | Netting | Trading Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	(12,810)	[1]	(13,231)	[1]
Nondesignated | Fair Value, Measurements, Recurring | Netting | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	(1,363)	[1]
Nondesignated | Fair Value, Measurements, Recurring | Netting | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	(228)	[1]
Nondesignated | Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	2,869
Nondesignated | Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	1,682		1,481
Nondesignated | Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	846
Nondesignated | Fair Value, Measurements, Recurring | Carrying Amount | Trading Assets | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	341
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets			0
Other assets	0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0		0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0		0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	1,005		1,282
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	945		1,206
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	60		76
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 3 | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0		0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 3 | Other Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0		0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 3 | Other Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0		0
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Netting | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0	[1]	0	[1]
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Netting | Other Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0	[1]	0	[1]
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Netting | Other Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	0	[1]	0	[1]
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	1,005		1,282
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	945		1,206
Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Assets	60		76
Parent | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Fair value of liabilities	1,927
Percentage of liabilities prior to netting (percent)	9.00%
Parent | Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	1,819
Derivative liabilities	108
Trading liabilities	1,927
Parent | Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	8
Parent | Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Fair Value, Measurements, Recurring | Level 1 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	100
Parent | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Long-term debt	329	[4]
Fair value of liabilities	19,152
Percentage of liabilities prior to netting (percent)	91.00%
Parent | Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	651
Derivative liabilities	17,777
Trading liabilities	18,428
Parent | Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	15,014
Parent | Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	2,066
Parent | Fair Value, Measurements, Recurring | Level 2 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	697
Parent | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Fair value of liabilities	41
Percentage of liabilities prior to netting (percent)	0.00%
Parent | Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	41
Trading liabilities	41
Parent | Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	36
Parent | Fair Value, Measurements, Recurring | Level 3 | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	5
Parent | Fair Value, Measurements, Recurring | Netting
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Fair value of liabilities	(13,856)	[1]
Parent | Fair Value, Measurements, Recurring | Netting | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	(13,856)	[1]
Trading liabilities	(13,856)	[1]
Parent | Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	(12,404)	[1]
Parent | Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	(1,218)	[1]
Parent | Fair Value, Measurements, Recurring | Netting | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	(234)	[1]
Parent | Fair Value, Measurements, Recurring | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Long-term debt	329	[4]
Fair value of liabilities	7,264
Parent | Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt and equity instruments	2,470
Derivative liabilities	4,070
Trading liabilities	6,540
Parent | Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	2,654
Parent | Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	848
Parent | Fair Value, Measurements, Recurring | Carrying Amount | Trading Liabilities | Equity contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	568
Parent | Designated as Hedging Instrument | Level 3 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Designated as Hedging Instrument | Level 3 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Designated as Hedging Instrument | Netting | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0	[1]
Parent | Designated as Hedging Instrument | Netting | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0	[1]
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 1 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	0
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	395
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	172
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Level 2 | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	223
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	395
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	172
Parent | Designated as Hedging Instrument | Fair Value, Measurements, Recurring | Carrying Amount | Other Liabilities | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative liabilities	$ 223

[1] ASC 815 permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities, and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product.

[2] At March 31, 2014 and Dec. 31, 2013, foreign covered bonds and sovereign debt were included in Level 1 and Level 2 in the valuation hierarchy. All other assets in the table are Level 2 assets in the valuation hierarchy.

[3] Previously included in the Grantor Trust. The Grantor Trust was dissolved in 2011.

[4] Includes certain interests in securitizations.

[5] Includes private equity investments and seed capital.