v2.4.0.6

Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2012
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following tables summarize basic and dilutive earnings per share (in millions, except for per share amounts):
| Three Months Ended |  | Six Months Ended
| June 30, 2012 |  | June 30, 2011 |  | June 30, 2012 |  | June 30, 2011
Basic earnings per share |  |  |  |  |  |  |
Net income attributable to stockholders(a) | $ | 1,846 |  |  | $ | 2,992 |  |  | $ | 3,161 |  |  | $ | 6,358 |
Less: cumulative dividends on preferred stock and undistributed earnings allocated to Series B Preferred Stock participating security(b) | (359 | ) |  | (468 | ) |  | (670 | ) |  | (971 | )
Net income attributable to common stockholders | $ | 1,487 |  |  | $ | 2,524 |  |  | $ | 2,491 |  |  | $ | 5,387 |
Weighted-average common shares outstanding - basic | 1,569 |  |  | 1,505 |  |  | 1,571 |  |  | 1,505 |
Basic earnings per common share | $ | 0.95 |  |  | $ | 1.68 |  |  | $ | 1.59 |  |  | $ | 3.58 |
Diluted earnings per share |  |  |  |  |  |  |
Net income attributable to stockholders(a) | $ | 1,846 |  |  | $ | 2,992 |  |  | $ | 3,161 |  |  | $ | 6,358 |
Less: cumulative dividends on preferred stock and undistributed earnings allocated to Series B Preferred Stock participating security(c) | (350 | ) |  | (447 | ) |  | (655 | ) |  | (924 | )
Net income attributable to common stockholders | $ | 1,496 |  |  | $ | 2,545 |  |  | $ | 2,506 |  |  | $ | 5,434 |
Weighted-average shares outstanding - diluted |  |  |  |  |  |  |
Weighted-average common shares outstanding - basic | 1,569 |  |  | 1,505 |  |  | 1,571 |  |  | 1,505 |
Dilutive effect of warrants | 98 |  |  | 147 |  |  | 106 |  |  | 154 |
Dilutive effect of restricted stock units (RSUs) | 4 |  |  | 2 |  |  | 4 |  |  | 2 |
Weighted-average common shares outstanding - diluted | 1,671 |  |  | 1,654 |  |  | 1,681 |  |  | 1,661 |
Diluted earnings per common share | $ | 0.90 |  |  | $ | 1.54 |  |  | $ | 1.49 |  |  | $ | 3.27 |
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(a) | Includes earned but undistributed dividends of $26 million on our Series A Preferred Stock and $20 million on our Series B Preferred Stock in the three and six months ended June 30, 2012 and 2011.

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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