Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Revenue
Investment banking fees	$ 1,445	$ 1,381
Principal transactions	3,761	2,722
Lending-and deposit-related fees	1,468	1,517
Asset management, administration and commissions	3,599	3,392
Securities gains	509	536
Mortgage fees and related income	1,452	2,010
Credit card income	1,419	1,316
Other income	536	1,512
Noninterest revenue	14,189	14,386
Interest income	13,427	14,701
Interest expense	2,494	3,035
Net interest income	10,933	11,666
Total net revenue	25,122	26,052
Provision for credit losses	617	726
Noninterest expense
Compensation expense	8,414	8,613
Occupancy expense	901	961
Technology, communications and equipment expense	1,332	1,271
Professional and outside services	1,734	1,795
Marketing	589	680
Other expense	2,301	4,832
Amortization of intangibles	152	193
Total noninterest expense	15,423	18,345
Income before income tax expense	9,082	6,981
Income tax expense	2,553	2,057
Net income	6,529	4,924
Net income applicable to common stockholders	6,131	4,577
Per common share data - Basic earnings per share
Basic earnings per share	$ 1.61	$ 1.20
Per common share data - Diluted earnings per share
Diluted earnings per share	$ 1.59	$ 1.19
Weighted-average basic shares	3,818.2	3,818.8
Weighted-average diluted shares	3,847.0	3,833.4
Cash dividends declared per common share	$ 0.30	$ 0.30
Other-than-temporary impairment losses included in securities gains
Total other-than-temporary impairment losses	0	(10)
Losses recorded in/(reclassified from) other comprehensive income	0	3
OTTI losses recognized in income	0	(7)
Credit related
Other-than-temporary impairment losses included in securities gains
OTTI losses recognized in income	$ 0	$ (7)

Combination of: 1) Revenue recognized in the period for (A) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (B) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (C) other investment management and advisory fees. 2) Acting as an agent, a broker-dealer may buy and sell securities on behalf of its customers. In return for such services, the broker-dealer charges a commission. Each time a customer enters into a buy or sell transaction, a commission is earned by the broker-dealer for its selling and administrative efforts. For securities purchased, the commission is recorded as a receivable from customers; for securities sold, it is recorded as reductions in the payable to customers. Commissions earned are usually related to the broker-dealer's customers' trading volume and the dollar amounts of the trades. In general, commissions are for smaller trades of exchange-listed stocks and bonds made by retail customers. 3)Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (A) acting as an agent for fiduciary placement and loans and (B) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. 4) Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products. 5) Revenues from providing transfer agent services to corporations. Such services include maintaining records of investors and account balances and transactions, canceling and issuing certificates, processing investor mailings and dealing with any associated problems (i.e. lost or stolen certificates). 6) Service revenue earned by a depository institution that holds the account balances of other financial institutions and provides services thereto. Such services include check collection and item processing. 7) Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy, such as ADR fees, fund accounting fees, etc.

No definition available.