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Quarterly Financial Data (Unaudited) (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Disclosure of quarterly financial data |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues, net of interest expense | $ 7,742,000,000 | $ 7,571,000,000 | $ 7,618,000,000 | $ 7,031,000,000 | $ 7,244,000,000 | $ 6,973,000,000 | $ 6,805,000,000 | $ 6,560,000,000 | $ 29,962,000,000 |  | $ 27,582,000,000 |  | $ 24,336,000,000 |
Pretax income (loss) from continuing operations | 1,748,000,000 | 1,711,000,000 | 1,765,000,000 | 1,732,000,000 | 1,477,000,000 | 1,640,000,000 | 1,595,000,000 | 1,252,000,000 | 6,956,000,000 |  | 5,964,000,000 |  | 2,841,000,000 |
Income (loss) from continuing operations | 1,192,000,000 | 1,235,000,000 | 1,295,000,000 | 1,177,000,000 | 1,062,000,000 | 1,093,000,000 | 1,017,000,000 | 885,000,000 | 4,899,000,000 |  | 4,057,000,000 |  | 2,137,000,000 |
Loss from discontinued operations, net of tax | 0 | 0 | 36,000,000 | 0 | 0 | 0 | 0 | 0 | 36,000,000 |  | 0 |  | (7,000,000) |
Net income | 1,192,000,000 | 1,235,000,000 | 1,331,000,000 | 1,177,000,000 | 1,062,000,000 | 1,093,000,000 | 1,017,000,000 | 885,000,000 | 4,935,000,000 |  | 4,057,000,000 |  | 2,130,000,000 |
Earnings per Common Share Basic: (Note 18) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations | $ 1.02 | $ 1.04 | $ 1.08 | $ 0.98 | $ 0.88 | $ 0.91 | $ 0.84 | $ 0.74 | $ 4.11 | [1] | $ 3.37 | [1] | $ 1.55 | [1]
Discontinued operations | $ 0 | $ 0 | $ 0.03 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0.03 |  | $ 0 |  | $ (0.01) |
Net income | $ 1.02 | $ 1.04 | $ 1.11 | $ 0.98 | $ 0.88 | $ 0.91 | $ 0.84 | $ 0.74 | $ 4.14 | [1] | $ 3.37 | [1] | $ 1.54 | [1]
Earnings per Common Share Diluted: (Note 18) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations | $ 1.01 | $ 1.03 | $ 1.07 | $ 0.97 | $ 0.88 | $ 0.90 | $ 0.84 | $ 0.73 | $ 4.09 | [1] | $ 3.35 | [1] | $ 1.54 | [1]
Loss from discontinued operations, net of tax | $ 0 | $ 0 | $ 0.03 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0.03 |  | $ 0 |  | $ 0 |
Net income | $ 1.01 | $ 1.03 | $ 1.10 | $ 0.97 | $ 0.88 | $ 0.90 | $ 0.84 | $ 0.73 | $ 4.12 | [1] | $ 3.35 | [1] | $ 1.54 | [1]
Cash dividends declared per common share | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.18 | $ 0.72 |  | $ 0.72 |  | $ 0.72 |
Common share price: |  |  |  |  |  |  |  |  |  |  |  |  |  |
High | 52.35 | 53.80 | 51.97 | 46.93 | 46.78 | 45.68 | 49.19 | 43.25 |  |  |  |  |  |
Low | 41.30 | 42.03 | 45.10 | 42.19 | 37.33 | 38.42 | 37.13 | 36.60 |  |  |  |  |  |
Restructuring Reserve By Type Of Restructuring [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  | $ 119,000,000 |  | $ 96,000,000 |  | $ 185,000,000 |
[1] | Represents income from continuing operations or net income, as applicable, less (i) accelerated preferred dividend accretion of $212 million for the year ended December 31, 2009 due to the repurchase of $3.39 billion of preferred shares issued as part of the Capital Purchase Program, (ii) preferred share dividends and related accretion of $94 million for the year ended December 31, 2009 and (iii) earnings allocated to participating share awards and other items of $58 million, $51 million and $22 million for the years ended December 31, 2011, 2010 and 2009, respectively.

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