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Dispositions (Narrative) (Details) - Discontinued Operations, Held-for-sale - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Oct. 25, 2023 | Oct. 04, 2023
Brookfield Renewable Partners | Subsequent event |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Consideration to be received |  |  |  |  | $ 1,100 |
Arclight | Subsequent event |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Consideration to be received |  |  |  |  |  | $ 243
Commercial Renewables |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Pre-tax impairment | $ 169 | $ 1,200 | $ 220 | $ 1,700 |  |
Noncontrolling interest balance | $ 1,800 |  |  | $ 1,600 |  |

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