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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contracts with Customers [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table presents our revenue from contracts with customers and other revenue for the periods indicated (in millions):
| Three Months Ended September 30, 2025
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Corporate, Other and Eliminations |  | Total
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 756 |  |  | $ | 22 |  |  | $ | 1,312 |  |  | $ | — |  |  | $ | (54) |  |  | $ | 2,036 |
Other non-regulated revenue (1) | 61 |  |  | 1 |  |  | 171 |  |  | — |  |  | — |  |  | 233 |
Total non-regulated revenue | 817 |  |  | 23 |  |  | 1,483 |  |  | — |  |  | (54) |  |  | 2,269 |
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | — |  |  | 1,075 |  |  | — |  |  | — |  |  | — |  |  | 1,075 |
Other regulated revenue | — |  |  | 7 |  |  | — |  |  | — |  |  | — |  |  | 7 |
Total regulated revenue | — |  |  | 1,082 |  |  | — |  |  | — |  |  | — |  |  | 1,082 |
Total revenue | $ | 817 |  |  | $ | 1,105 |  |  | $ | 1,483 |  |  | $ | — |  |  | $ | (54) |  |  | $ | 3,351 |
| Three Months Ended September 30, 2024
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Corporate, Other and Eliminations |  | Total
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 676 |  |  | $ | 23 |  |  | $ | 1,422 |  |  | $ | 1 |  |  | $ | (41) |  |  | $ | 2,081 |
Other non-regulated revenue (1) | 78 |  |  | 1 |  |  | 192 |  |  | — |  |  | — |  |  | 271 |
Total non-regulated revenue | 754 |  |  | 24 |  |  | 1,614 |  |  | 1 |  |  | (41) |  |  | 2,352 |
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | — |  |  | 929 |  |  | — |  |  | — |  |  | — |  |  | 929 |
Other regulated revenue | — |  |  | 8 |  |  | — |  |  | — |  |  | — |  |  | 8 |
Total regulated revenue | — |  |  | 937 |  |  | — |  |  | — |  |  | — |  |  | 937 |
Total revenue | $ | 754 |  |  | $ | 961 |  |  | $ | 1,614 |  |  | $ | 1 |  |  | $ | (41) |  |  | $ | 3,289 |
| Nine Months Ended September 30, 2025
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Corporate, Other and Eliminations |  | Total
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 2,014 |  |  | $ | 65 |  |  | $ | 3,770 |  |  | $ | — |  |  | $ | (172) |  |  | $ | 5,677 |
Other non-regulated revenue (1) | 113 |  |  | 3 |  |  | 339 |  |  | — |  |  | — |  |  | 455 |
Total non-regulated revenue | 2,127 |  |  | 68 |  |  | 4,109 |  |  | — |  |  | (172) |  |  | 6,132 |
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | — |  |  | 2,978 |  |  | — |  |  | — |  |  | — |  |  | 2,978 |
Other regulated revenue | — |  |  | 22 |  |  | — |  |  | — |  |  | — |  |  | 22 |
Total regulated revenue | — |  |  | 3,000 |  |  | — |  |  | — |  |  | — |  |  | 3,000 |
Total revenue | $ | 2,127 |  |  | $ | 3,068 |  |  | $ | 4,109 |  |  | $ | — |  |  | $ | (172) |  |  | $ | 9,132 |
| Nine Months Ended September 30, 2024
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Corporate, Other and Eliminations |  | Total
Non-Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | $ | 1,839 |  |  | $ | 65 |  |  | $ | 4,128 |  |  | $ | 1 |  |  | $ | (116) |  |  | $ | 5,917 |
Other non-regulated revenue (1) | 177 |  |  | 3 |  |  | 557 |  |  | — |  |  | — |  |  | 737 |
Total non-regulated revenue | 2,016 |  |  | 68 |  |  | 4,685 |  |  | 1 |  |  | (116) |  |  | 6,654 |
Regulated Revenue |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers | — |  |  | 2,641 |  |  | — |  |  | — |  |  | — |  |  | 2,641 |
Other regulated revenue | — |  |  | 21 |  |  | — |  |  | — |  |  | — |  |  | 21 |
Total regulated revenue | — |  |  | 2,662 |  |  | — |  |  | — |  |  | — |  |  | 2,662 |
Total revenue | $ | 2,016 |  |  | $ | 2,730 |  |  | $ | 4,685 |  |  | $ | 1 |  |  | $ | (116) |  |  | $ | 9,316 |
_______________________________ (1) Other non-regulated revenue primarily includes lease and derivative revenue not accounted for under ASC 606.

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- Definition Revenue from Contracts with Customers [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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