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Segments and Geographic Information Segment and Geographic Information (Adjusted EBITDA & Reconcilliation of Net Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Net equity in losses of affiliates | $ (9) | $ 3 | $ (12) | $ (21) | $ (26) | $ (32) | $ (71)
Net income (loss) | 215 | 153 | 431 | 646 | 802 | (182) | (505)
Income Tax Expense (Benefit) | 103 | (35) | (51) | 52 | 59 | 261 | 265
Interest expense | (379) | (389) | (746) | (1,125) | (1,485) | (1,319) | (1,117)
Investment Income, Interest | (119) | $ (88) | (193) | (312) | (381) | (551) | (389)
Depreciation, Amortization and Accretion, Net |  |  |  |  | (1,264) | (1,147) | (1,072)
Depreciation, amortization, and accretion of AROs |  |  | $ 620 | 926 | 1,264 | 1,147 | 1,072
Adjustment for noncontrolling interests and redeemable stock of subsidiaries |  |  |  |  | 734 | 556 | 707
Less: Income taxes expense (benefit), interest expense (income) and depreciation and amortization from equity affiliates |  |  |  |  | (136) | (131) | (128)
Interest income recognized under service concession arrangements |  |  |  |  | (65) | (71) | (77)
Unrealized derivative and equity securities losses (gains) |  |  |  |  | 94 | (34) | (131)
Disposition/ acquisition losses |  |  |  |  | 323 | 79 | (40)
Impairment losses |  |  |  |  | (280) | (877) | (1,658)
Extinguishment of Debt, Gain (Loss), Net of Tax |  |  |  |  | (57) | (62) | (20)
Income (loss) from continuing operations, net of tax | $ 511 |  |  | $ 1,219 | 1,686 | 242 | (546)
Total Adjusted EBITDA |  |  |  |  | 2,672 | 2,808 | 2,955
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax |  |  |  |  | (16) | (301) | (42)
Depreciation expense |  |  |  |  | 1,146 | 1,045 | 982
Accretion Expense, Including Asset Retirement Obligations |  |  |  |  | 22 | 16 | 18
Operating Segments | Renewables |  |  |  |  |  |  |
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Net equity in losses of affiliates |  |  |  |  | 19 | 41 | 28
Interest expense |  |  |  |  | (414) | (326) | (236)
Investment Income, Interest |  |  |  |  | (109) | (181) | (131)
Depreciation, amortization, and accretion of AROs |  |  |  |  | 401 | 345 | 268
Total Adjusted EBITDA |  |  |  |  | 552 | 652 | 613
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) |  |  |  |  | 1,752 | 1,504 | 1,097
Segment Reporting, Other Segment Item, Amount |  |  |  |  | 206 | 183 | 183
Operating Segments | Utilities |  |  |  |  |  |  |
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Net equity in losses of affiliates |  |  |  |  | 4 | 5 | 6
Interest expense |  |  |  |  | (294) | (243) | (234)
Investment Income, Interest |  |  |  |  | (12) | (12) | (8)
Depreciation, amortization, and accretion of AROs |  |  |  |  | 458 | 400 | 376
Total Adjusted EBITDA |  |  |  |  | 792 | 678 | 612
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) |  |  |  |  | 2,607 | 2,662 | 2,861
Segment Reporting, Other Segment Item, Amount |  |  |  |  | 209 | 155 | 144
Operating Segments | Energy Infrastructure |  |  |  |  |  |  |
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Net equity in losses of affiliates |  |  |  |  | 10 | 6 | 9
Interest expense |  |  |  |  | (483) | (534) | (488)
Investment Income, Interest |  |  |  |  | (233) | (337) | (246)
Depreciation, amortization, and accretion of AROs |  |  |  |  | 397 | 392 | 416
Total Adjusted EBITDA |  |  |  |  | 1,366 | 1,540 | 1,846
Total cost of sales excluding depreciation, amortization, and accretion of AROs (1) |  |  |  |  | 4,568 | 5,022 | 5,249
Segment Reporting, Other Segment Item, Amount |  |  |  |  | 304 | 274 | 109
Intersegment Eliminations |  |  |  |  |  |  |
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Segment Reporting, Other Segment Item, Amount |  |  |  |  | (44) | (2) | 13
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | Corporate and Other |  |  |  |  |  |  |
Reconciliation To Income From Continuing Operations Before Taxes |  |  |  |  |  |  |
Net equity in losses of affiliates |  |  |  |  | (39) | 0 | 0
Interest expense |  |  |  |  | (294) | (216) | (159)
Investment Income, Interest |  |  |  |  | (20) | (19) | (4)
Depreciation, amortization, and accretion of AROs |  |  |  |  | $ 7 | $ 9 | $ 10

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