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Asset Impairment Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025 | Dec. 31, 2023
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use | $ 30 | $ (154) |  | $ 42 | $ (105) |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  |  |  |  |  |  | 51.00%
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong Finance Holdings B.V._Related Party |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  |  |  |  |  | 51.00% |
Other Subsidiaries [Member] |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use | (2) | 3 |  | 4 | 4 |  |
AES Clean Energy Development | Clean Energy |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  | (51) |  |  |  |  |
Mong Duong held-for-sale |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of | 0 | (243) | $ 17 | 0 | (226) |  |
Mong Duong held-for-sale | Long Lived Assets held and Used |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Other Asset Impairment Charges |  |  |  | 239 |  |  |
AES Clean Energy Development Projects |  |  |  |  |  |  |
Asset Impairment Expense [Line Items] |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use | $ 32 | $ 86 |  | $ 38 | $ 117 |  |

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- Definition Amount of impairment loss for long-lived asset held and used. Includes, but is not limited to, impairment loss for long-lived asset to be disposed of other than by sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-4 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-11 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
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