This item represents the percentage of available-for-sale securities with a credit enhancement against the loss of value in the underlying assets in the security which were considered and relied upon as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired.

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income or earnings or resulted in a change in net asset value.

+ Details

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- Definition

This item represents the change during the period in the amount assets which are measured at fair value on either a recurring or nonrecurring basis and fall within Level 3 of the fair value measurements hierarchy. Level 3 inputs are unobservable inputs for the asset. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available; such as, when there is little, if any, market activity for the asset or liability at the measurement date.

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Level 3 Analysis - Supplemental Data [Abstract]

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- Definition

The percentage of level 3 assets as compared to total assets of the entity.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-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 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594

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This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(1)

-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 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 4

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.4)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Fair Value Measurement - Level 3 Analysis (Details 4) (USD $)	3 Months Ended			6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended																																						3 Months Ended	6 Months Ended		6 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011 Derivative Receivables Net Of Payables [ Member]	Jun. 30, 2010 Derivative Receivables Net Of Payables [ Member]	Jun. 30, 2011 Derivative Receivables Net Of Payables [ Member]	Jun. 30, 2010 Derivative Receivables Net Of Payables [ Member]	Jun. 30, 2011 Level 3 [Member] Servicing Contracts [Member]	Jun. 30, 2011 Servicing Contracts [Member]	Jun. 30, 2010 Servicing Contracts [Member]	Jun. 30, 2011 Servicing Contracts [Member]	Jun. 30, 2010 Servicing Contracts [Member]	Jun. 30, 2011 Private Equity Funds [Member]	Jun. 30, 2010 Private Equity Funds [Member]	Jun. 30, 2011 Private Equity Funds [Member]	Jun. 30, 2010 Private Equity Funds [Member]	Jun. 30, 2011 Long-term Debt [Member]	Jun. 30, 2010 Long-term Debt [Member]	Jun. 30, 2011 Long-term Debt [Member]	Jun. 30, 2010 Long-term Debt [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Collateralized Loan Obligations [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Collateralized Loan Obligations [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Collateralized Loan Obligations [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Collateralized Loan Obligations [Member]	Jun. 30, 2011 Collateralized Loan Obligations [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Loans Receivable [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Loans Receivable [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Reverse Mortgage [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Interest Rate Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Interest Rate Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Structured Credit Derivatives [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Credit Default Swap [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Derivatives including: interest rate, credit, foreign exchange, equity and commodity contracts	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Derivatives including: interest rate, credit, foreign exchange, equity and commodity contracts	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Credit derivatives	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Credit derivatives	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Foreign Exchange Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Foreign Exchange Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Equity Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Level 3 [Member] Equity Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Loans Receivable [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Loans Receivable [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Derivatives including: interest rate, credit, foreign exchange, equity and commodity contracts	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Derivatives including: interest rate, credit, foreign exchange, equity and commodity contracts	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Interest Rate Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Interest Rate Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Credit derivatives	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Credit derivatives	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Foreign Exchange Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Foreign Exchange Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Equity Contract [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Equity Contract [Member]	Jun. 30, 2011 Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member] Loans Held-For-Sale [Member]	Jun. 30, 2011 Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member] Loans Held-For-Sale [Member]	Dec. 31, 2010 Reverse Mortgage [Member]	Jun. 30, 2011 Trading assets Level 3 [Member] Loans Receivable [Member]	Jun. 30, 2011 Level 3 [Member] Residential and Commercial Mortgage Loans [Member]	Jun. 30, 2011 Level 3 [Member] Asset backed Security Available for Sale [Member]	Jun. 30, 2011 Level 3 [Member]
Level 3 Analysis - Supplemental Data [Abstract]
Available-for-sale securities																			$ 15,133,000,000	$ 13,470,000,000	$ 15,251,000,000	$ 13,598,000,000				$ 15,903,000,000	$ 14,287,000,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Credit Enhancement Percentage																							30.00%
Trading assets																								458,722,000,000	489,892,000,000	66,967,000,000	69,196,000,000	11,742,000,000	13,144,000,000	3,900,000,000	5,901,000,000	5,422,000,000	9,900,000,000	3,300,000,000	34,176,000,000	34,642,000,000	15,131,000,000	17,902,000,000	4,624,000,000	4,236,000,000	5,151,000,000	4,885,000,000	36,355,000,000	34,880,000,000	77,383,000,000	80,481,000,000	32,911,000,000	32,555,000,000	6,198,000,000	7,725,000,000	19,898,000,000	25,858,000,000	7,084,000,000	4,204,000,000			4,000,000,000		5,700,000,000
Percentage of level 3 assets in total Firm assets	5.00%
Fair value of assets																																																													109,800,000,000
Increase (decrease) in level 3 assets	(6,300,000,000)					(1,400,000,000)																																																	(4,400,000,000)	(3,000,000,000)		(1,400,000,000)		1,600,000,000	(4,900,000,000)
Gains (losses) on level 3 assets		702,000,000	1,986,000,000	1,203,000,000	1,209,000,000		(960,000,000)	(3,584,000,000)	(1,711,000,000)	(3,680,000,000)	777,000,000	(12,000,000)	1,682,000,000	136,000,000
Gains related to long-term structured note liabilities															$ 395,000,000	$ 632,000,000	$ 457,000,000	$ 1,035,000,000