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v3.21.2

Held-for-Sale and Dispositions Dispositions (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 08, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2018 | Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  | $ 58 | $ 44 |  |
Gain (loss) on disposal and sale of businesses interests |  | $ (64) |  | $ 27 | $ (59) | 27 |  |
Equity Method Investment, Ownership Percentage |  | 10.00% |  |  | 10.00% |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Itabo Opco [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates | $ 88 |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Redondo Beach [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  | 24 |  | 24 |  |
Gain (Loss) on Disposition of Assets |  |  |  |  |  | 41 |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | AES Tiete Inova Solucoes |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  | $ 20 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  | $ 20 |  | 23 | $ 40 | 46 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Itabo Opco [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  | 43.00% |  |  | 43.00% |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong Subsidiary [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  | $ 15 |  | 15 | $ 30 | 30 |  |
Assets Carrying Amount Disclosure Nonrecurring |  | $ 502 |  |  | $ 502 |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  | 51.00% |  |  | 51.00% |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Estrella Del Mar I |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  | $ 0 |  | 3 | $ 0 | 6 |  |
Assets Carrying Amount Disclosure Nonrecurring |  | 16 |  |  | 16 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Jordan (IPP1 & IPP4) |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  | $ 5 | 5 | 10 | 10 |  |
Assets Carrying Amount Disclosure Nonrecurring |  | $ 150 |  |  | 150 |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  | $ 58 |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  | 26.00% |  |  | 26.00% |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Mong Duong Financing SPV |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  | 51.00% |  |  | 51.00% |  |  |
Kazakhstan Hydro [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  | $ 75 |
Proceeds from Legal Settlements |  |  |  |  | $ 45 |  |  |
Disposal Group Not Discontinued Operation Ownership Interest Sold |  |  |  |  |  |  |  | 100.00%
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  |  |  | (30) |  |
AES Tiete Inova Solucoes | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  |  | (1) |  |  |
Itabo Opco [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  | $ 1 |  | $ 8 | 5 | $ 19 |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  |  | $ 4 |  |  |

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