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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Apr. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |
Income (loss) from continuing operations available to The AES Corporation common stockholders |  | $ 426,000,000 | $ (95,000,000) | $ 913,000,000 | $ (49,000,000)
Weighted Average Number of Shares Outstanding, Basic |  | 713,000 | 712,000 | 713,000 | 712,000
Income (loss) from continuing operations available to The AES Corporation common stockholders |  | $ 0.60 | $ (0.13) | $ 1.28 | $ (0.07)
Increase in redemption value of redeemable stock of subsidiaries |  | $ 0 | $ (10,000,000) | $ 0 | $ (10,000,000)
Increase in redemption value of redeemable stock of subsidiaries, per basic share |  | 0 | (0.02) | 0 | (0.01)
Net Income (Loss) Available to Common Stockholders, Basic |  | $ 426,000,000 | $ (105,000,000) | $ 913,000,000 | $ (59,000,000)
Earnings Per Share, Basic |  | $ 0.60 | $ (0.15) | $ 1.28 | $ (0.08)
Income from continuing operations, diluted |  | $ 426,000,000 | $ (105,000,000) | $ 913,000,000 | $ (59,000,000)
DILUTED SHARES OUTSTANDING |  | 715,000 | 712,000 | 715,000 | 712,000
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted |  | $ 0.60 | $ (0.15) | $ 1.28 | $ (0.08)
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units |  | $ 0 | $ 0 | $ 0 | $ 0
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements |  | 2,000 | 0 | 2,000 | 0
Dilutive Securities Effect On Basic EPS, dilutive Restricted Stock Units, per diluted share |  | $ 0 | $ 0 | $ 0 | $ 0
AES AGIC Holdings |  |  |  |  |
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |
Cash Available for Distributions | $ 199,000,000 |  |  |  |
Incentive Distribution, Distribution | $ 146,000,000 |  |  |  |
Share-based Payment Arrangement [Member] |  |  |  |  |
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  |  | 2,000 | 3,000 | 6,000
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  |  | 2,000 | 3,000 | 6,000

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