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SEGMENT INFORMATION - Operating Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | $ 6,482 | $ 5,429 | $ 12,783 | $ 10,821 |
Costs attributed to revenues | (3,797) | (3,054) | (7,327) | (6,058) |
General and administrative expenses | (114) | (108) | (223) | (205) |
Other (expense) income | (65) | (109) | (123) | (182) |
Interest expense | (1,073) | (909) | (2,120) | (1,808) |
Depreciation and amortization expense | (1,095) | (941) | (2,170) | (1,901) |
Deferred taxes | (35) | 44 | 16 | 82 |
Mark-to-market and other | 153 | (88) | (191) | (82) |
Share of (losses) earnings from associates | 33 | (12) | (8) | 111 | $ 627
Net income attributable to non-controlling interest | (445) | (183) | (654) | (584) |
Net income (loss) attributable to partnership | 44 | 69 | (17) | 194 |
Utilities |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 2,365 | 2,187 | 4,702 | 4,317 |
Transport |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 1,072 | 1,150 | 2,118 | 2,324 |
Midstream |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 1,916 | 984 | 3,698 | 2,033 |
Operating segments |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 2,217 | 1,945 | 4,434 | 3,881 |
Costs attributed to revenues | (961) | (799) | (1,946) | (1,586) |
General and administrative expenses | (114) | (108) | (223) | (205) |
Other (expense) income | 1 | 14 | 30 | 29 |
Interest expense | (441) | (414) | (884) | (835) |
FFO | 702 | 638 | 1,411 | 1,284 |
Depreciation and amortization expense | (464) | (421) | (920) | (846) |
Deferred taxes | (25) | 29 | (6) | 33 |
Mark-to-market and other | (169) | (177) | (502) | (277) |
Share of (losses) earnings from associates | 0 | 0 | 0 | 0 |
Net income attributable to non-controlling interest | 0 | 0 | 0 | 0 |
Net income (loss) attributable to partnership | 44 | 69 | (17) | 194 |
Operating segments | Utilities |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 742 | 676 | 1,484 | 1,360 |
Costs attributed to revenues | (405) | (358) | (812) | (718) |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | (27) | (28) | (50) | (62) |
Interest expense | (114) | (103) | (225) | (201) |
FFO | 196 | 187 | 397 | 379 |
Operating segments | Transport |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 652 | 618 | 1,281 | 1,199 |
Costs attributed to revenues | (230) | (210) | (473) | (396) |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | (8) | (11) | (11) | (17) |
Interest expense | (103) | (93) | (203) | (194) |
FFO | 311 | 304 | 594 | 592 |
Operating segments | Midstream |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 477 | 385 | 972 | 810 |
Costs attributed to revenues | (208) | (146) | (421) | (307) |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | (3) | (4) | (10) | (12) |
Interest expense | (83) | (78) | (168) | (165) |
FFO | 183 | 157 | 373 | 326 |
Operating segments | Data |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 346 | 266 | 697 | 512 |
Costs attributed to revenues | (118) | (85) | (240) | (165) |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | 4 | 6 | 11 | 12 |
Interest expense | (78) | (74) | (165) | (144) |
FFO | 154 | 113 | 303 | 215 |
Operating segments | Corporate |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 0 | 0 | 0 | 0 |
Costs attributed to revenues | 0 | 0 | 0 | 0 |
General and administrative expenses | (114) | (108) | (223) | (205) |
Other (expense) income | 35 | 51 | 90 | 108 |
Interest expense | (63) | (66) | (123) | (131) |
FFO | (142) | (123) | (256) | (228) |
Material reconciling items | Total for all associates |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | (574) | (478) | (1,079) | (946) |
Costs attributed to revenues | 196 | 132 | 396 | 257 |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | 2 | 7 | (3) | 17 |
Interest expense | 99 | 91 | 192 | 190 |
Depreciation and amortization expense | 136 | 114 | 250 | 234 |
Deferred taxes | (3) | (19) | (13) | (22) |
Mark-to-market and other | 122 | 177 | 253 | 171 |
Share of (losses) earnings from associates | 22 | (24) | 4 | 99 |
Net income attributable to non-controlling interest | 0 | 0 | 0 | 0 |
Net income (loss) attributable to partnership | 0 | 0 | 0 | 0 |
Material reconciling items | Non-controlling interests |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
Revenues | 4,839 | 3,962 | 9,428 | 7,886 |
Costs attributed to revenues | (3,032) | (2,387) | (5,777) | (4,729) |
General and administrative expenses | 0 | 0 | 0 | 0 |
Other (expense) income | (68) | (130) | (150) | (228) |
Interest expense | (731) | (586) | (1,428) | (1,163) |
Depreciation and amortization expense | (767) | (634) | (1,500) | (1,289) |
Deferred taxes | (7) | 34 | 35 | 71 |
Mark-to-market and other | 200 | (88) | 58 | 24 |
Share of (losses) earnings from associates | 11 | 12 | (12) | 12 |
Net income attributable to non-controlling interest | (445) | (183) | (654) | (584) |
Net income (loss) attributable to partnership | $ 0 | $ 0 | $ 0 | $ 0 |

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