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Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
BASIC EARNINGS PER SHARE |  |  |  |
Income (loss) from continuing operations attributable to The AES Corporation common stockholders (Income) | $ 69 | $ 191 | $ 414 | $ 428
Income (loss) from continuing operations attributable to The AES Corporation common stockholders (Shares) | 764,000,000 | 782,000,000 | 765,000,000 | 785,000,000
Income from continuing operations attributable to The AES Corporation common stockholders, net of tax | $ 0.09 | $ 0.24 | $ 0.54 | $ 0.54
EFFECT OF DILUTIVE SECURITIES |  |  |  |
Director stock units (Shares) |  |  | 0 | 0
Director stock units (Per Share) |  |  | $ 0 | $ 0
Stock options (Shares) | 1,000,000 | 2,000,000 | 1,000,000 | 2,000,000
Restricted stock units (Shares) | 3,000,000 | 3,000,000 | 3,000,000 | 3,000,000
Restricted stock units (Per Share) | $ 0 | $ 0 | $ 0 | $ (0.01)
DILUTED EARNINGS PER SHARE (INCOME) | $ 69 | $ 191 | $ 414 | $ 428
DILUTED EARNINGS PER SHARE (SHARES) | 768,000,000 | 787,000,000 | 769,000,000 | 790,000,000
Diluted Earnings Per Share | $ 0.09 | $ 0.24 | $ 0.54 | $ 0.53
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Shares of common stock issued upon exercise of stock options | 743,524 |  | 1,044,017 |
Shares of common stock issued under the Company's profit sharing plan |  |  | 1,013,872 |
Stock Options [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Additional options outstanding that could potentially dilute EPS in the future |  |  | 6,685,692 | 15,930,917
Restricted Stock Units (RSUs) [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Additional options outstanding that could potentially dilute EPS in the future |  |  | 2,444,811 |

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