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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2011
Earnings Per Share Tables [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  |  |  | December 31, 2011 |  | December 31, 2010 |  | December 31, 2009
|  |  |  | Income |  | Shares |  | $ per Share |  | Income |  | Shares |  | $ per Share |  | Income |  | Shares |  | $ per Share
BASIC EARNINGS PER SHARE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | attributable to The AES Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | common stockholders |  | $ | 458 |  | 778 |  | $ | 0.59 |  | $ | 484 |  | 769 |  | $ | 0.63 |  | $ | 724 |  | 667 |  | $ | 1.09
EFFECT OF DILUTIVE SECURITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Stock options |  |  | - |  | 2 |  |  | - |  |  | - |  | 2 |  |  | - |  |  | - |  | 1 |  |  | -
| Restricted stock units |  |  | - |  | 3 |  |  | - |  |  | - |  | 3 |  |  | - |  |  | - |  | 2 |  |  | (0.01)
DILUTED EARNINGS PER SHARE |  | $ | 458 |  | 783 |  | $ | 0.59 |  | $ | 484 |  | 774 |  | $ | 0.63 |  | $ | 724 |  | 670 |  | $ | 1.08

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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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