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Asset Impairment Expense (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | May 15, 2024 | Mar. 31, 2024
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | $ 374 | $ 1,067 | $ 763 |  |
Other Asset Impairment Charges | $ 74 | $ 38 | $ 84 | $ 158 | 374 | 1,067 | 763 |  |
Long-Lived Assets |  |  |  |  | 33,538 | 30,338 | 23,395 |  |
Impairment expense |  |  | $ 84 | $ 158 | 374 | $ 1,079 | 1,715 |  |
Jordan (IPP1 & IPP4) | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from divestiture of business |  |  |  |  | 58 |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  |  |  |  |  |  |  |  | 26.00%
AES Brasil [Domain] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  |  |  | $ 1,552 |
Assets carrying amount disclosure nonrecurring, prior to impairment |  |  |  |  |  |  |  | $ 1,577 |
Mong Duong Finance Holdings B.V._Related Party [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  |  |  |  |  | 51.00% |  |  |
Ventanas 3 & 4 |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | 125 | $ 0 | 0 |  |
AES PR |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | 80 | 0 | 0 |  |
AES Bulgaria |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | 0 | 0 | 468 |  |
TEG |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | 0 | 77 | 104 |  |
New York Wind |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  | 0 | 186 | 0 |  |
TEP |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  | 0 | 59 | 89 |  |
AES Brasil [Domain] |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  | 55 |  |  |  |
Long Lived Assets Held For Sale [Member] | AES Brasil [Domain] |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  | $ 25 |  |  |  |  |  |  |
Long Lived Assets Held And Used [Member] | TEG |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  | 77 |  |  |
Long Lived Assets Held And Used [Member] | TEG | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 170 |  |  |
Long Lived Assets Held And Used [Member] | TEG | Level 3 |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 93 |  |  |
Long Lived Assets Held And Used [Member] | TEG | Level 3 | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 93 | 164 |  |
Long Lived Assets Held And Used [Member] | New York Wind |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  | 186 |  |  |
Long Lived Assets Held And Used [Member] | New York Wind | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 310 |  |  |
Long Lived Assets Held And Used [Member] | New York Wind | Level 3 |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 124 |  |  |
Long Lived Assets Held And Used [Member] | New York Wind | Level 3 | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 124 |  |  |
Long Lived Assets Held And Used [Member] | TEP |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  |  | 59 |  |  |
Long Lived Assets Held And Used [Member] | TEP | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 153 |  |  |
Long Lived Assets Held And Used [Member] | TEP | Level 3 |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | 94 |  |  |
Long Lived Assets Held And Used [Member] | TEP | Level 3 | Carrying Amount |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Assets carrying amount |  |  |  |  |  | $ 94 | $ 147 |  |
Long Lived Assets Held-for-sale, Name [Domain] | AES Bulgaria |  |  |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  |  | $ 468 |  |  |  |

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