Fair Values of Assets and Liabilities (Details 6) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Financial Assets
Cash and due from banks	$ 15,250	$ 14,487
Investment securities held-to-maturity	13,280	1,469
Mortgages held for sale	3,304	8,100
Loans	194,811	191,751
Financial Liabilities
Deposits	214,883	204,252
Short-term borrowings	29,654	32,557
Long-term debt	32,830	31,537
Carrying Amount [Member]
Financial Assets
Cash and due from banks	15,250	14,487
Investment securities held-to-maturity	13,280	1,469
Mortgages held for sale	5	4
Other loans held for sale	234	267
Loans	194,811	191,751
Financial Liabilities
Deposits	214,883	204,252
Short-term borrowings	29,654	32,557
Long-term debt	32,830	31,537
Fair Value [Member]
Financial Assets
Cash and due from banks	15,250	14,487
Investment securities held-to-maturity	13,431	1,419
Mortgages held for sale	5	4
Other loans held for sale	234	267
Loans	196,711	192,058
Financial Liabilities
Deposits	215,330	204,799
Short-term borrowings	29,816	32,839
Long-term debt	$ 33,419	$ 31,981

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Financial Liabilities Abstract.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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