Noninterest Expense (Details) (USD $) In Millions	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Components of noninterest expense [Abstract]
Compensation expense	$ 28,124	$ 26,928	$ 22,746
Noncompensation expense:
Occupancy expense	3,681	3,666	3,038
Technology, communications and equipment expense	4,684	4,624	4,315
Professional and outside services	6,767	6,232	6,053
Marketing	2,446	1,777	1,913
Other expense	14,558	7,594	3,740
Amortization of intangibles	936	1,050	1,263
Total noncompensation expense	33,072	24,943	20,322
Merger costs	0	481	432
Total noninterest expense	$ 61,196	$ 52,352	$ 43,500

Components Of Noninterest Expense.

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Amount of costs of a merger or acquisition including compensation, occupancy, communications, technology and other costs that were charged to expense during the period.

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Noncompensation expense.

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Amount of costs of a merger or acquisition including compensation, occupancy, communications, technology, legal, accounting, and other costs that were charged to expense during the period.

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Amount of net occupancy expense that may include items, such as furniture and fixtures, lease expenses, property taxes and property and casualty insurance expense. Excludes depreciation of equipment.

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- Definition

Combination of: 1) Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support. 2) This represents the company's cost incurred during an accounting period for managing the money in a fund, which will be billed back to the client and is a component of noninterest expenses. 3) Fees paid to an agent employed by a corporation or mutual fund to maintain shareholder records, including purchases, sales, and account balances. Also includes custodian fees incurred during an accounting period from an agent, bank, trust company, or other organization that holds and safeguards an individual's, mutual fund's, or investment company's assets for them. These fees will be billed back to the client and are a component of noninterest expense. 4) Fees paid by the Entity to sales representatives based on commission payout contracts covering the sale of mutual funds and insurance products. 5) The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees and clearance fees. 6) Sub-advisory fees for mutual funds. Sub-advisory fees that the funds adviser pays for out of the management fee, which it receives from the fund. Funds that are sub-advised report both their management fees and the portion paid to the sub-adviser. The advisers of some mutual funds contract with unaffiliated third-party investment managers for management of all or a portion of their funds portfolios. The third-party manager called a sub-adviser, holds a position equivalent to that of an external investment manager to a pension plan. 7) Consultant, mortgage appraisal fees, credit card processing, credit service and collection agency, data processing and assessments.

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Combination of: 1)The amount of expense in the period for communications and data processing expense and 2)This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item excludes furniture expenses.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(2)

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The aggregate amount of expenditures for salaries, wages, profit sharing and incentive compensation, and other employee benefits, including share-based compensation, and pension and other postretirement benefit expense.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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- Definition

Total aggregate amount of all noninterest expense.

+ References

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Chapter V

-Section 563c.102

-Paragraph 14

-Subsection II

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 14

-Article 9

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Other noninterest expenses that are not separately presented in any other noninterest expense category.

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