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Equity (Transactions with Noncontrolling Interests) (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business | $ (1) | $ 1 |  |  |  |  |  |  | $ 44 | $ 43 |  | $ 351 | $ 134 | $ (9) |
Accumulated Other Comprehensive Income (Loss), Net of Tax | (1,600) | (1,416) |  | $ (1,514) |  |  |  |  | (1,416) | (1,600) |  | (766) | (1,514) | (1,640) | $ (2,220)
Sale of Stock, Consideration Received on Transaction |  |  |  |  | $ 63 |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  |  | 23 |  |  |
Contributions from noncontrolling interests |  |  |  |  |  |  |  |  | 97 | 137 |  | 222 | 102 | $ 233 |
Retained Earnings (Accumulated Deficit) | (174) | (678) |  | $ (1,386) |  |  |  |  | (678) | $ (174) |  | 293 | $ (1,386) |  |
AES Brasil | Private Placement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  |  |  |  |  |  |  |  | 54 |  |  |  |
AES Brasil [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  |  |  |  | 47.40% |  |  |  |
AES Andes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 99.40% |  |  |  |  |  |  |  |  | 99.40% |  |
Ownership interest acquired in subsidiary |  |  |  | 1.30% |  |  |  |  |  |  |  |  | 1.30% |  |
AES Southland [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  |  | $ 94 |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  |  |  |  |  |  |  |  |  | 50.10% |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  |  |  |  |  |  | $ 157 |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  |  | $ 91 |  |
Sale of Stock, Description of Transaction |  |  |  |  |  |  |  |  |  |  |  |  | 14.9 | 14.9 |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  |  |  | $ 3 |  |
Chile Renovables SpA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  |  |  |  |  | 77 |  |  |
Sale of Stock, Description of Transaction |  |  |  |  |  | 49 |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity |  |  |  |  |  |  |  |  |  |  |  | 275 |  |  |
AES Andes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  |  | $ 96 |  |
Sale of Stock, Percentage of Ownership before Transaction |  |  |  |  |  |  |  |  |  |  |  |  | 67.10% |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  | 98.10% |
Sale of Stock, Consideration Received on Transaction |  |  |  | $ 172 |  |  |  |  |  |  |  |  | $ 522 |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  |  |  | 76 |  |
Investment Owned, at Cost |  |  |  | $ 22 |  |  |  |  |  |  |  |  | 22 |  |
AES Brasil |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  |  | 312 |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  | 98 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  | $ 3 |  |  |  |
AES Brasil | Private Placement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee, Cumulative Number of Shares Issued for All Transactions |  |  |  | 107 |  |  |  |  |  |  | 116 |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  |  |  |  |  |  |  |  | 53 |  |  |  |
AES Renewable Holdings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  | 263 | 124 | $ 88 |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  | 34 |  |  |
Proceeds from Issuance or Sale of Equity |  |  |  |  |  |  |  |  |  |  |  | 143 |  |  |
Noncontrolling Interest, Change in Redemption Value |  |  |  |  |  |  |  |  |  |  |  | 45 |  |  |
Ventus Wind Complex [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  | 35.80% |  |  |  |  |  |  |  |  |  |
Sale of Stock, Description of Transaction |  |  |  |  | 3.5 |  |  |  |  |  |  |  |  |  |
Los Olmos |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  | $ 12 |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  | 80 |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  |  |  | $ (68) |  |  |  |  |  |  |  |
Andes Solar 2A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  | $ 9 |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  | 37 |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  |  |  |  | $ (28) |  |  |  |  |  |  |
Campo Lindo |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  | $ (9) |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  | 50 |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  | (59) |  |  |  |  |  |  |  |  |  |  |
Bolero Solar Park |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  | 58 |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  | (57) |  |  |  |  |  |  |  |  |  |  |
Andes Solar 2b |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  | 11 |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  | 156 |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  | $ (145) |  |  |  |  |  |  |  |  |  |  |
AES Dominicana Renewable Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  | $ 73 |  |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  |  |  |  |  |  |  |  | 65.00% |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  |  |  |  |  | $ 192 |  |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 74 |  |  |
Sale of Stock, Description of Transaction |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  |  | $ (1) |  |  |
Colon |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  | $ 31 |  |  |
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  |  |  |  |  |  |  |  | 65.00% |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  |  |  |  |  | $ 146 |  |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  |  |  |  |  |  |  |  | $ 43 |  |  |
Sale of Stock, Description of Transaction |  |  |  |  |  |  |  |  |  |  |  | 35 |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  |  |  |  |  |  |  |  | $ (12) |  |  |
IPL Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Change in Redemption Value |  |  |  |  |  |  |  |  | $ 47 |  |  | 79 |  |  |
AES Panama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  |  |  |  |  |  |  |  | $ (42) |  |  |
AES Panama | Grupo Energia Gas Panama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  |  |  |  |  |  |  |  |  | 49.00% |  |  |
AES Clean Energy Development |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  | $ 603 | 1,039 | 230 |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  |  |  |  |  |  |  |  | (159) |  |  |
AES Brasiliana |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  | 304 |  |  |
Noncontrolling Interest, Change in Redemption Value |  |  |  |  |  |  |  |  |  |  |  | 498 |  |  |
Mesamavida |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  | $ (11) |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  | 40 |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  | $ (51) |  |  |  |  |  |  |  |  |  |  |  |
San Matias and Andes Solar IV projects |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Other |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |
Noncontrolling Interest, Change in Redemption Value |  |  |  |  |  |  |  |  |  |  |  | 74 |  |  |
AES Puerto Rico Solar |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Percentage of Ownership before Transaction |  |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  |  |  |  |  | $ 35 |  |  |  |  |  |
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  |  |  |  | 14 |  |  |
Sales to noncontrolling interests | (7) | $ (9) |  |  |  |  |  |  |  |  |  | (19) | 85 | 78 |
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests | $ (2) |  |  |  |  |  |  |  |  |  |  | $ 802 | $ (24) | $ 78 |

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