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Equity Equity Transactions with Noncontrolling Interests (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 31, 2022 | Feb. 05, 2021 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2022 | Jun. 30, 2021
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Contributions from noncontrolling interests |  |  |  |  | $ 28,000,000 | $ 95,000,000
AES Brasil [Domain] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 45.70% | 36.30% |  |  |  |
Sale of Stock, Percentage of Ownership before Transaction | 45.30% |  |  |  |  |
Ownership interest acquired in subsidiary |  |  | 1.60% |  | 1.60% |
AES Gener |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 98.00% | 67.10% | 99.00% |  | 99.00% |
Sale of Stock, Percentage of Ownership before Transaction | 67.10% | 67.00% |  |  |  |
Ownership interest acquired in subsidiary |  |  | 1.00% |  | 1.00% |
Cajuina Wind Complex |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  | 35.50% |  | 35.50% |
AES Gener |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction | $ 522,000,000 |  |  |  |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  | $ 169,000,000 |
Adjustments to Additional Paid in Capital, Other |  |  |  |  | 93,000,000 |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  | 76,000,000 |
Stock Issued During Period, Shares, New Issues |  | 1,980,000,000 |  |  |  |
Common Stock, Shares Subscribed but Unissued |  | 1,350,000,000 |  |  |  |
Investment Owned, at Cost |  | $ 205,000,000 | $ 13,000,000 |  | 13,000,000 |
Contributions from noncontrolling interests |  | 94,000,000 |  |  |  |
Other Noncontrolling Interests |  | $ 629,000,000 |  |  |  |
AES Brasil [Domain] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Stockholders' Equity, Period Increase (Decrease) |  |  |  |  | 13,000,000 |
Adjustments to Additional Paid in Capital, Other |  |  |  |  | 6,000,000 |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent |  |  |  |  | 7,000,000 |
Investment Owned, at Cost |  |  | 17,000,000 |  | $ 17,000,000 |
Equity Method Investment, Ownership Percentage |  |  |  |  |  | 100.00%
Guaimbe Solar Complex [Member] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Sale of Stock, Description of Transaction |  |  |  |  | 3.5 | 19.9
Sale of Stock, Consideration Received on Transaction |  |  |  |  | $ 63,000,000 | $ 158,000,000
Sale of Stock, Percentage of Ownership after Transaction |  |  |  |  | 35.80% |
Chile Renovables SpA |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  | 80,000,000 | $ 37,000,000 |  |
Adjustments to Additional Paid in Capital, Other |  |  | 12,000,000 | 9,000,000 |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  | $ 68,000,000 | $ 28,000,000 |  |
Chile Renovables SpA | Global Infrastructure Management |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  | 49.00% |  | 49.00% |
Cajuina Wind Complex |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Sale of Stock, Description of Transaction |  |  |  |  | 24 |
Sale of Stock, Consideration Received on Transaction |  |  |  |  | $ 12,000,000 |
Clean Energy |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Contributions from noncontrolling interests |  |  |  |  | $ 98,000,000 |

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