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Segment and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2024
Segment Reporting Information [Line Items] |
Schedule of Segment Reporting Information, by Segment [Table Text Block] | The following tables present financial information by segment for the periods indicated (in millions):
| Year Ended December 31, 2024
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Total
Revenue | $ | 2,510 |  |  | $ | 3,608 |  |  | $ | 6,238 |  |  | $ | 1 |  |  | $ | 12,357 |
Corporate and other |  |  |  |  |  |  |  |  | 162 |
Eliminations |  |  |  |  |  |  |  |  | (241) |
Total Revenue |  |  |  |  |  |  |  |  | $ | 12,278 |
Less: |  |  |  |  |  |  |  |  |
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) | 1,752 |  |  | 2,607 |  |  | 4,568 |  |  | 8 |  |  |
Other segment items (2) | 206 |  |  | 209 |  |  | 304 |  |  | 31 |  |  |
Segment Adjusted EBITDA | $ | 552 |  |  | $ | 792 |  |  | $ | 1,366 |  |  | $ | (38) |  |  | $ | 2,672 |
Reconciliation to income from continuing operations before taxes |  |  |  |  |  |  |  |  |
Corporate and other |  |  |  |  |  |  |  |  | 11 |
Eliminations |  |  |  |  |  |  |  |  | (44) |
Interest expense |  |  |  |  |  |  |  |  | (1,485) |
Interest income |  |  |  |  |  |  |  |  | 381 |
Depreciation, amortization, and accretion of AROs |  |  |  |  |  |  |  |  | (1,264) |
Adjusted for: |  |  |  |  |  |  |  |  |
Noncontrolling interests and redeemable stock of subsidiaries |  |  |  |  |  |  |  |  | 734 |
Income tax expense (benefit), interest expense (income), and depreciation, amortization, and accretion of AROs from equity affiliates |  |  |  |  |  |  |  |  | (136) |
Interest income recognized under service concession arrangements |  |  |  |  |  |  |  |  | (65) |
Unrealized derivative and equity securities gains |  |  |  |  |  |  |  |  | 94 |
Unrealized foreign currency losses |  |  |  |  |  |  |  |  | (16) |
Disposition/acquisition losses |  |  |  |  |  |  |  |  | 323 |
Impairment losses |  |  |  |  |  |  |  |  | (280) |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  | (57) |
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | $ | 868 |
_____________________________ (1)Segment-level total cost of sales excluding depreciation, amortization, and accretion of AROs is considered regularly provided to the chief operating decision maker. Total cost of sales excluding depreciation, amortization, and accretion of AROs includes items such as fuel cost, electricity purchases, transmission charges, supplies, salaries and wages, consulting costs, IT costs, market fees, insurance, and lease expense. (2)Other segment items for each reportable segment includes: Renewables SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Utilities SBU — miscellaneous gains and losses in Other income and Other expense, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Energy Infrastructure SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. New Energy Technologies SBU — earnings from equity affiliates, and miscellaneous gains and losses in Other income and Other expense.
| Year Ended December 31, 2023
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Total
Revenue | $ | 2,339 |  |  | $ | 3,495 |  |  | $ | 6,836 |  |  | $ | 76 |  |  | $ | 12,746 |
Corporate and other |  |  |  |  |  |  |  |  | 138 |
Eliminations |  |  |  |  |  |  |  |  | (216) |
Total Revenue |  |  |  |  |  |  |  |  | $ | 12,668 |
Less: |  |  |  |  |  |  |  |  |
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) | 1,504 |  |  | 2,662 |  |  | 5,022 |  |  | 84 |  |  |
Other segment items (2) | 183 |  |  | 155 |  |  | 274 |  |  | 54 |  |  |
Segment Adjusted EBITDA | $ | 652 |  |  | $ | 678 |  |  | $ | 1,540 |  |  | $ | (62) |  |  | $ | 2,808 |
Reconciliation to income from continuing operations before taxes |  |  |  |  |  |  |  |  |
Corporate and other |  |  |  |  |  |  |  |  | 22 |
Eliminations |  |  |  |  |  |  |  |  | (2) |
Interest expense |  |  |  |  |  |  |  |  | (1,319) |
Interest income |  |  |  |  |  |  |  |  | 551 |
Depreciation, amortization, and accretion of AROs |  |  |  |  |  |  |  |  | (1,147) |
Adjusted for: |  |  |  |  |  |  |  |  |
Noncontrolling interests and redeemable stock of subsidiaries |  |  |  |  |  |  |  |  | 556 |
Income tax expense (benefit), interest expense (income), and depreciation, amortization, and accretion of AROs from equity affiliates |  |  |  |  |  |  |  |  | (131) |
Interest income recognized under service concession arrangements |  |  |  |  |  |  |  |  | (71) |
Unrealized derivative and equity securities losses |  |  |  |  |  |  |  |  | (34) |
Unrealized foreign currency losses |  |  |  |  |  |  |  |  | (301) |
Disposition/acquisition gains |  |  |  |  |  |  |  |  | 79 |
Impairment losses |  |  |  |  |  |  |  |  | (877) |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  | (62) |
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | $ | 72 |
_____________________________ (1)Segment-level total cost of sales excluding depreciation, amortization, and accretion of AROs is considered regularly provided to the chief operating decision maker. Total cost of sales excluding depreciation, amortization, and accretion of AROs includes items such as fuel cost, electricity purchases, transmission charges, supplies, salaries and wages, consulting costs, IT costs, market fees, insurance, and lease expense. (2)Other segment items for each reportable segment includes: Renewables SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Utilities SBU — miscellaneous gains and losses in Other income and Other expense, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Energy Infrastructure SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. New Energy Technologies SBU — earnings from equity affiliates, and miscellaneous gains and losses in Other income and Other expense.
| Year Ended December 31, 2022
| Renewables SBU |  | Utilities SBU |  | Energy Infrastructure SBU |  | New Energy Technologies SBU |  | Total
Revenue | $ | 1,893 |  |  | $ | 3,617 |  |  | $ | 7,204 |  |  | $ | 3 |  |  | $ | 12,717 |
Corporate and other |  |  |  |  |  |  |  |  | 116 |
Eliminations |  |  |  |  |  |  |  |  | (216) |
Total Revenue |  |  |  |  |  |  |  |  | $ | 12,617 |
Less: |  |  |  |  |  |  |  |  |
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) | 1,097 |  |  | 2,861 |  |  | 5,249 |  |  | 8 |  |  |
Other segment items (2) | 183 |  |  | 144 |  |  | 109 |  |  | 111 |  |  |
Segment Adjusted EBITDA | $ | 613 |  |  | $ | 612 |  |  | $ | 1,846 |  |  | $ | (116) |  |  | $ | 2,955 |
Reconciliation to income from continuing operations before taxes |  |  |  |  |  |  |  |  |
Corporate and other |  |  |  |  |  |  |  |  | (19) |
Eliminations |  |  |  |  |  |  |  |  | 13 |
Interest expense |  |  |  |  |  |  |  |  | (1,117) |
Interest income |  |  |  |  |  |  |  |  | 389 |
Depreciation, amortization, and accretion of AROs |  |  |  |  |  |  |  |  | (1,072) |
Adjusted for: |  |  |  |  |  |  |  |  |
Noncontrolling interests and redeemable stock of subsidiaries |  |  |  |  |  |  |  |  | 707 |
Income tax expense (benefit), interest expense (income), and depreciation, amortization, and accretion of AROs from equity affiliates |  |  |  |  |  |  |  |  | (128) |
Interest income recognized under service concession arrangements |  |  |  |  |  |  |  |  | (77) |
Unrealized derivative and equity securities losses |  |  |  |  |  |  |  |  | (131) |
Unrealized foreign currency losses |  |  |  |  |  |  |  |  | (42) |
Disposition/acquisition losses |  |  |  |  |  |  |  |  | (40) |
Impairment losses |  |  |  |  |  |  |  |  | (1,658) |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  | (20) |
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | $ | (240) |
_____________________________ (1)Segment-level total cost of sales excluding depreciation, amortization, and accretion of AROs is considered regularly provided to the chief operating decision maker. Total cost of sales excluding depreciation, amortization, and accretion of AROs includes items such as fuel cost, electricity purchases, transmission charges, supplies, salaries and wages, consulting costs, IT costs, market fees, insurance, and lease expense. (2)Other segment items for each reportable segment includes: Renewables SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Utilities SBU — miscellaneous gains and losses in Other income and Other expense, earnings from equity affiliates, and adjustment for noncontrolling interest expense. Energy Infrastructure SBU — business development costs, miscellaneous gains and losses in Other income and Other expense, realized foreign currency gains and losses, earnings from equity affiliates, and adjustment for noncontrolling interest expense. New Energy Technologies SBU — earnings from equity affiliates, and miscellaneous gains and losses in Other income and Other expense. The Company uses long-lived assets as its measure of segment assets. Long-lived assets includes amounts recorded in Property, plant and equipment, net and right-of-use assets for operating leases recorded in Other noncurrent assets on the Consolidated Balance Sheets.
| Long-Lived Assets
Year Ended December 31, | 2024 |  | 2023 |  | 2022
Renewables SBU | $ | 17,028 |  |  | $ | 15,735 |  |  | $ | 9,533 |
Utilities SBU | 8,535 |  |  | 7,166 |  |  | 6,311 |
Energy Infrastructure SBU | 7,928 |  |  | 7,414 |  |  | 7,532 |
New Energy Technologies SBU | 22 |  |  | 14 |  |  | 2 |
Corporate and Other | 25 |  |  | 9 |  |  | 17 |
Long-Lived Assets | 33,538 |  |  | 30,338 |  |  | 23,395 |
Current assets | 6,831 |  |  | 6,649 |  |  | 7,643 |
Investments in and advances to affiliates | 1,124 |  |  | 941 |  |  | 952 |
Debt service reserves and other deposits | 78 |  |  | 194 |  |  | 177 |
Goodwill | 345 |  |  | 348 |  |  | 362 |
Other intangible assets | 1,947 |  |  | 2,243 |  |  | 1,841 |
Deferred income taxes | 365 |  |  | 396 |  |  | 319 |
Other noncurrent assets, excluding right-of-use assets for operating leases | 2,545 |  |  | 2,879 |  |  | 3,674 |
Noncurrent held-for-sale assets | 633 |  |  | 811 |  |  | — |
Total Assets | $ | 47,406 |  |  | $ | 44,799 |  |  | $ | 38,363 |
|  |  | Depreciation, Amortization, and Accretion of AROs |  | Capital Expenditures
Year Ended December 31, |  |  |  |  |  |  | 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |  | 2022
Renewables SBU |  |  |  |  |  |  | $ | 401 |  |  | $ | 345 |  |  | $ | 268 |  |  | $ | 5,170 |  |  | $ | 5,759 |  |  | $ | 2,972 |
Utilities SBU |  |  |  |  |  |  | 458 |  |  | 400 |  |  | 376 |  |  | 1,570 |  |  | 1,374 |  |  | 859 |
Energy Infrastructure SBU |  |  |  |  |  |  | 397 |  |  | 392 |  |  | 416 |  |  | 733 |  |  | 585 |  |  | 742 |
New Energy Technologies SBU |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 2 |  |  | 11 |  |  | 5 |  |  | — |
Corporate and Other |  |  |  |  |  |  | 7 |  |  | 9 |  |  | 10 |  |  | 35 |  |  | 10 |  |  | 11 |
Total |  |  |  |  |  |  | $ | 1,264 |  |  | $ | 1,147 |  |  | $ | 1,072 |  |  | $ | 7,519 |  |  | $ | 7,733 |  |  | $ | 4,584 |
| Interest Income |  | Interest Expense |  | Net Equity in Earnings (Losses) of Affiliates
Year Ended December 31, | 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |  | 2022
Renewables SBU | $ | 109 |  |  | $ | 181 |  |  | $ | 131 |  |  | $ | 414 |  |  | $ | 326 |  |  | $ | 236 |  |  | $ | 19 |  |  | $ | 41 |  |  | $ | 28 |
Utilities SBU | 12 |  |  | 12 |  |  | 8 |  |  | 294 |  |  | 243 |  |  | 234 |  |  | 4 |  |  | 5 |  |  | 6 |
Energy Infrastructure SBU | 233 |  |  | 337 |  |  | 246 |  |  | 483 |  |  | 534 |  |  | 488 |  |  | 10 |  |  | 6 |  |  | 9 |
New Energy Technologies SBU | 7 |  |  | 2 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (20) |  |  | (84) |  |  | (114) |
Corporate and Other | 20 |  |  | 19 |  |  | 4 |  |  | 294 |  |  | 216 |  |  | 159 |  |  | (39) |  |  | — |  |  | — |
Total | $ | 381 |  |  | $ | 551 |  |  | $ | 389 |  |  | $ | 1,485 |  |  | $ | 1,319 |  |  | $ | 1,117 |  |  | $ | (26) |  |  | $ | (32) |  |  | $ | (71) |
Revenue And PP&E By Country | The following table presents information, by country, about the Company's consolidated operations for each of the three years ended December 31, 2024, 2023, and 2022, and as of December 31, 2024 and 2023 (in millions). Revenue is recorded in the country in which it is earned and assets are recorded in the country in which they are located.
| Total Revenue |  | Long-Lived Assets |
Year Ended December 31, | 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |
United States (1) | $ | 4,689 |  |  | $ | 4,439 |  |  | $ | 4,093 |  |  | $ | 25,261 |  |  | $ | 19,750 |  |
Non-U.S.: |  |  |  |  |  |  |  |  |  |
Chile | 1,534 |  |  | 1,932 |  |  | 2,064 |  |  | 3,563 |  |  | 3,018 |  |
Dominican Republic | 1,451 |  |  | 1,400 |  |  | 1,591 |  |  | 805 |  |  | 1,098 |  |
El Salvador | 1,036 |  |  | 935 |  |  | 902 |  |  | 472 |  |  | 442 |  |
Colombia | 686 |  |  | 706 |  |  | 417 |  |  | 358 |  |  | 390 |  |
Brazil | 616 |  |  | 697 |  |  | 560 |  |  | — |  |  | 2,482 |  |
Panama | 666 |  |  | 644 |  |  | 678 |  |  | 1,882 |  |  | 1,910 |  |
Mexico | 462 |  |  | 536 |  |  | 595 |  |  | 275 |  |  | 271 |  |
Bulgaria | 478 |  |  | 528 |  |  | 790 |  |  | 421 |  |  | 483 |  |
Argentina | 318 |  |  | 407 |  |  | 501 |  |  | 437 |  |  | 431 |  |
Vietnam (2) | 312 |  |  | 344 |  |  | 323 |  |  | — |  |  | — |  |
Jordan | 28 |  |  | 97 |  |  | 102 |  |  | 38 |  |  | 39 |  |
Other Non-U.S. | 2 |  |  | 3 |  |  | 1 |  |  | 26 |  |  | 24 |  |
Total Non-U.S. | 7,589 |  |  | 8,229 |  |  | 8,524 |  |  | 8,277 |  |  | 10,588 |  |
Total | $ | 12,278 |  |  | $ | 12,668 |  |  | $ | 12,617 |  |  | $ | 33,538 |  |  | $ | 30,338 |  |
_____________________________ (1) Includes Puerto Rico revenues of $426 million, $269 million, and $293 million for the years ended December 31, 2024, 2023, and 2022, respectively, and long-lived assets of $572 million and $145 million as of December 31, 2024 and 2023, respectively. (2) The Mong Duong 2 power project is operated under a BOT contract. The Mong Duong assets were classified as held-for-sale as of December 31, 2024 and 2023. See Note 21—Revenue and Note 25—Held-for-Sale and Dispositions for further information.

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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