Consolidated Balance Sheet (Parenthetical) (USD $) In Millions, except Share data	Jun. 30, 2011	Dec. 31, 2010
Investment securities
Held-to-maturity, fair value	$ 13,431	$ 1,419
Mortgage loans, carried at fair value	$ 3,304	$ 8,100
Shareholders' equity
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized (actual number of shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (actual number of shares)	2,125,725,742	2,125,725,742
Treasury stock, shares (actual number of shares)	201,118,719	204,822,330

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

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Carrying amount of mortgage loans to individuals not classified as held for investment but are held-for-sale.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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