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SEGMENT INFORMATION (Operating Segments) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of operating segments [line items] |  |  |
Revenues | $ 4,652 | $ 3,535 | $ 2,115
Costs attributed to revenues | (2,208) | (1,509) | (1,063)
General and administrative costs | (223) | (239) | (166)
Other income (expense) | (34) | (61) | 95
Interest expense | (555) | (428) | (392)
Depreciation and amortization | (801) | (671) | (447)
Deferred taxes | (46) | (67) | 18
Mark-to-market on hedging items and other | (175) | (104) | 120
Gain (Loss) on Disposition of Business | 209 |  |
Share of losses from associates | (13) | 118 | 248
Net income attributable to non-controlling interest and preferred unitholders | (396) | (449) | (41)
Net income (loss) attributable to partnership | 410 | 125 | 487
Utilities |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 2,563 | 1,785 | 825
Transport |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1,322 | 1,290 | 892
Energy |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 767 | 460 | 398
Reportable segments |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 3,505 | 3,301 | 2,590
Costs attributed to revenues | (1,669) | (1,498) | (1,102)
General and administrative costs | (223) | (239) | (166)
Adjusted EBITDA | 1,613 | 1,564 | 1,322
Other income (expense) | 62 | 40 | 78
Interest expense | (444) | (434) | (456)
Funds From Operations | 1,231 | 1,170 | 944
Depreciation and amortization | (758) | (726) | (609)
Deferred taxes | 12 | (7) | 5
Mark-to-market on hedging items and other | (284) | (312) | 147
Gain (Loss) on Disposition of Business | 209 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 410 | 125 | 487
Reportable segments | Utilities |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1,055 | 988 | 684
Costs attributed to revenues | (322) | (250) | (160)
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | 733 | 738 | 524
Other income (expense) | (30) | (14) | 5
Interest expense | (127) | (114) | (130)
Funds From Operations | 576 | 610 | 399
Depreciation and amortization | (187) | (186) | (154)
Deferred taxes | (49) | (52) | 5
Mark-to-market on hedging items and other | (82) | (59) | (88)
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 258 | 313 | 162
Reportable segments | Transport |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 1,612 | 1,589 | 1,247
Costs attributed to revenues | (930) | (895) | (650)
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | 682 | 694 | 597
Other income (expense) | 2 | (4) | (17)
Interest expense | (166) | (158) | (157)
Funds From Operations | 518 | 532 | 423
Depreciation and amortization | (345) | (312) | (253)
Deferred taxes | 47 | (1) | 26
Mark-to-market on hedging items and other | (208) | (80) | 10
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 12 | 139 | 206
Reportable segments | Energy |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 668 | 559 | 496
Costs attributed to revenues | (340) | (278) | (220)
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | 328 | 281 | 276
Other income (expense) | 22 | 15 | 8
Interest expense | (81) | (87) | (109)
Funds From Operations | 269 | 209 | 175
Depreciation and amortization | (154) | (151) | (128)
Deferred taxes | (3) | 11 | (38)
Mark-to-market on hedging items and other | (73) | (37) | 81
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 39 | 32 | 90
Reportable segments | Data Infrastructure |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 170 | 165 | 163
Costs attributed to revenues | (77) | (75) | (72)
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | 93 | 90 | 91
Other income (expense) | (4) | (2) | (2)
Interest expense | (12) | (12) | (12)
Funds From Operations | 77 | 76 | 77
Depreciation and amortization | (72) | (77) | (74)
Deferred taxes | 7 | 21 | 29
Mark-to-market on hedging items and other | (6) | (9) | (5)
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 6 | 11 | 27
Reportable segments | Corporate |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 0 | 0 | 0
Costs attributed to revenues | 0 | 0 | 0
General and administrative costs | (223) | (239) | (166)
Adjusted EBITDA | (223) | (239) | (166)
Other income (expense) | 72 | 45 | 84
Interest expense | (58) | (63) | (48)
Funds From Operations | (209) | (257) | (130)
Depreciation and amortization | 0 | 0 | 0
Deferred taxes | 10 | 14 | (17)
Mark-to-market on hedging items and other | 85 | (127) | 149
Gain (Loss) on Disposition of Business | 209 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 95 | (370) | 2
Contribution from investments in associates |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | (1,524) | (1,624) | (1,311)
Costs attributed to revenues | 833 | 861 | 651
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | (691) | (763) | (660)
Other income (expense) | 11 | 7 | 16
Interest expense | 134 | 172 | 190
Funds From Operations | (546) | (584) | (454)
Depreciation and amortization | 370 | 382 | 328
Deferred taxes | (44) | (22) | 9
Mark-to-market on hedging items and other | 233 | 106 | (131)
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | (13) | 118 | 248
Net income attributable to non-controlling interest and preferred unitholders | 0 | 0 | 0
Net income (loss) attributable to partnership | 0 | 0 | 0
Attributable to non- controlling interest |  |  |
Disclosure of operating segments [line items] |  |  |
Revenues | 2,671 | 1,858 | 836
Costs attributed to revenues | (1,372) | (872) | (612)
General and administrative costs | 0 | 0 | 0
Adjusted EBITDA | 1,299 | 986 | 224
Other income (expense) | (107) | (108) | 1
Interest expense | (245) | (166) | (126)
Funds From Operations | 947 | 712 | 99
Depreciation and amortization | (413) | (327) | (166)
Deferred taxes | (14) | (38) | 4
Mark-to-market on hedging items and other | (124) | 102 | 104
Gain (Loss) on Disposition of Business | 0 |  |
Share of losses from associates | 0 | 0 | 0
Net income attributable to non-controlling interest and preferred unitholders | (396) | (449) | (41)
Net income (loss) attributable to partnership | $ 0 | $ 0 | $ 0

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