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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of subsidiaries [line items] |  |  |
Revenues | $ 17,931 | $ 14,427 | $ 11,537
Net income (loss) attributable to partnership | 432 | 407 | 1,093
U.K. regulated distribution operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 635 | 572 | 569
Attributable to non-controlling interest, net income (loss) | 19 | 19 | 34
Attributable to non-controlling interest, other comprehensive income (loss) | 38 | (20) | 6
Net income (loss) attributable to partnership | 78 | 75 | 138
Attributable to unitholders, other comprehensive income (loss) | 154 | (78) | 26
Brazilian regulated gas transmission operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 1,483 | 1,314 | 1,074
Attributable to non-controlling interest, net income (loss) | 455 | 506 | 361
Attributable to non-controlling interest, other comprehensive income (loss) | 44 | (2) | (87)
Net income (loss) attributable to partnership | 202 | 225 | 150
Attributable to unitholders, other comprehensive income (loss) | 19 | (1) | (31)
Colombian natural gas distribution operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 997 | 901 |
Attributable to non-controlling interest, net income (loss) | 53 | 47 |
Attributable to non-controlling interest, other comprehensive income (loss) | 104 | (23) |
Net income (loss) attributable to partnership | 10 | 10 |
Attributable to unitholders, other comprehensive income (loss) | 24 | (4) |
Brazil electricity transmission operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 38 | 224 |
Attributable to non-controlling interest, net income (loss) | 16 | 67 |
Attributable to non-controlling interest, other comprehensive income (loss) | 7 | 29 |
Net income (loss) attributable to partnership | 7 | 21 |
Attributable to unitholders, other comprehensive income (loss) | 3 | 22 |
North American residential decarbonization infrastructure business |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  | 1,695 |
Attributable to non-controlling interest, net income (loss) |  | 89 |
Attributable to non-controlling interest, other comprehensive income (loss) |  | 23 |
Net income (loss) attributable to partnership |  | 36 |
Attributable to unitholders, other comprehensive income (loss) |  | 9 |
Indian gas transmission operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 407 | 337 |
Attributable to non-controlling interest, net income (loss) | 83 | 51 |
Attributable to non-controlling interest, other comprehensive income (loss) | (4) | (56) |
Net income (loss) attributable to partnership | 22 | 14 |
Attributable to unitholders, other comprehensive income (loss) | (1) | (15) |
North American rail operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 2,257 | 2,253 | 2,157
Attributable to non-controlling interest, net income (loss) | 166 | 196 | 208
Attributable to non-controlling interest, other comprehensive income (loss) | 190 | 202 | 131
Net income (loss) attributable to partnership | 20 | 23 | 24
Attributable to unitholders, other comprehensive income (loss) | 14 | 21 | 13
U.K. ports operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 272 | 272 |
Attributable to non-controlling interest, net income (loss) | 9 | 6 |
Attributable to non-controlling interest, other comprehensive income (loss) | 12 | (15) |
Net income (loss) attributable to partnership | 14 | 8 |
Attributable to unitholders, other comprehensive income (loss) | 12 | (21) |
Australian port operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 460 |  |
Attributable to non-controlling interest, net income (loss) | 20 |  |
Attributable to non-controlling interest, other comprehensive income (loss) | (2) |  |
Net income (loss) attributable to partnership | 7 |  |
Attributable to unitholders, other comprehensive income (loss) | (1) |  |
Peruvian toll roads |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 145 | 111 | 96
Attributable to non-controlling interest, net income (loss) | 31 | 15 | 6
Attributable to non-controlling interest, other comprehensive income (loss) | 17 | 28 | (57)
Net income (loss) attributable to partnership | 6 | 3 | 1
Attributable to unitholders, other comprehensive income (loss) | 3 | 6 | (11)
Indian toll roads(3) |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  | 143 | 117
Attributable to non-controlling interest, net income (loss) |  | 1 | (25)
Attributable to non-controlling interest, other comprehensive income (loss) |  | (22) | (6)
Net income (loss) attributable to partnership |  | 4 | (9)
Attributable to unitholders, other comprehensive income (loss) |  | (11) | (3)
Canadian diversified midstream operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 3,338 | 3,150 | 906
Attributable to non-controlling interest, net income (loss) | 15 | 115 | 59
Attributable to non-controlling interest, other comprehensive income (loss) | 56 | (163) | 38
Net income (loss) attributable to partnership | 19 | 160 | 65
Attributable to unitholders, other comprehensive income (loss) | 72 | (239) | 30
North American gas storage operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 321 | 246 | 371
Attributable to non-controlling interest, net income (loss) | 5 | 64 | 95
Attributable to non-controlling interest, other comprehensive income (loss) | 160 | 43 | 36
Net income (loss) attributable to partnership | 2 | 45 | 65
Attributable to unitholders, other comprehensive income (loss) | 103 | 38 | 22
U.S. colocation data center operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 207 | 221 | 249
Attributable to non-controlling interest, net income (loss) | (87) | (75) | (33)
Attributable to non-controlling interest, other comprehensive income (loss) | (6) | 28 | 13
Net income (loss) attributable to partnership | (35) | (30) | (13)
Attributable to unitholders, other comprehensive income (loss) | (2) | 11 | 5
Australian data center operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 31 | 22 | 23
Attributable to non-controlling interest, net income (loss) | (3) | 3 | 3
Attributable to non-controlling interest, other comprehensive income (loss) | 1 | (9) | (8)
Net income (loss) attributable to partnership | (1) | 2 | 1
Attributable to unitholders, other comprehensive income (loss) | 0 | (4) | (3)
Indian Telecom Towers Operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 1,471 |  |
Attributable to non-controlling interest, net income (loss) | 19 |  |
Attributable to non-controlling interest, other comprehensive income (loss) | (16) |  |
Net income (loss) attributable to partnership | 6 |  |
Attributable to unitholders, other comprehensive income (loss) | (3) |  |
Holding LP and other |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 4 | 6 |
Attributable to non-controlling interest, net income (loss) | (171) | (106) |
Attributable to non-controlling interest, other comprehensive income (loss) | 0 | 0 |
Net income (loss) attributable to partnership | (583) | (244) |
Attributable to unitholders, other comprehensive income (loss) | (85) | 300 |
Canadian district energy operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 72
Attributable to non-controlling interest, net income (loss) |  |  | 9
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 35
Net income (loss) attributable to partnership |  |  | 3
Attributable to unitholders, other comprehensive income (loss) |  |  | 8
Indian gas transmission operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 342
Attributable to non-controlling interest, net income (loss) |  |  | 35
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | (17)
Net income (loss) attributable to partnership |  |  | 13
Attributable to unitholders, other comprehensive income (loss) |  |  | (5)
Colombian natural gas distribution operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 862
Attributable to non-controlling interest, net income (loss) |  |  | 34
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | (101)
Net income (loss) attributable to partnership |  |  | 8
Attributable to unitholders, other comprehensive income (loss) |  |  | (24)
Brazilian transmission operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 90
Attributable to non-controlling interest, net income (loss) |  |  | 22
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | (6)
Net income (loss) attributable to partnership |  |  | 10
Attributable to unitholders, other comprehensive income (loss) |  |  | (2)
U.K. port operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 274
Attributable to non-controlling interest, net income (loss) |  |  | 17
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 6
Net income (loss) attributable to partnership |  |  | 24
Attributable to unitholders, other comprehensive income (loss) |  |  | 9
Australian port operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  | 458 | 412
Attributable to non-controlling interest, net income (loss) |  | (27) | (16)
Attributable to non-controlling interest, other comprehensive income (loss) |  | (21) | (18)
Net income (loss) attributable to partnership |  | (10) | (6)
Attributable to unitholders, other comprehensive income (loss) |  | (8) | (6)
Chilean toll roads |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 138
Attributable to non-controlling interest, net income (loss) |  |  | (40)
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 53
Net income (loss) attributable to partnership |  |  | (8)
Attributable to unitholders, other comprehensive income (loss) |  |  | 13
U.S. district energy operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 74
Attributable to non-controlling interest, net income (loss) |  |  | 2
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 0
Net income (loss) attributable to partnership |  |  | 0
Attributable to unitholders, other comprehensive income (loss) |  |  | 0
North American residential decarbonization infrastructure business |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 1,444
Attributable to non-controlling interest, net income (loss) |  |  | 75
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 43
Net income (loss) attributable to partnership |  |  | 32
Attributable to unitholders, other comprehensive income (loss) |  |  | 18
Indian telecom tower operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  | 1,398 | 1,257
Attributable to non-controlling interest, net income (loss) |  | (7) | 1
Attributable to non-controlling interest, other comprehensive income (loss) |  | (201) | (80)
Net income (loss) attributable to partnership |  | 2 | 0
Attributable to unitholders, other comprehensive income (loss) |  | (41) | (16)
Holding LP |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues |  |  | 5
Attributable to non-controlling interest, net income (loss) |  |  | 742
Attributable to non-controlling interest, other comprehensive income (loss) |  |  | 0
Net income (loss) attributable to partnership |  |  | 450
Attributable to unitholders, other comprehensive income (loss) |  |  | 194
Global intermodal logistics operation |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 385 |  |
Attributable to non-controlling interest, net income (loss) | 56 |  |
Attributable to non-controlling interest, other comprehensive income (loss) | (33) |  |
Net income (loss) attributable to partnership | 22 |  |
Attributable to unitholders, other comprehensive income (loss) | (13) |  |
European hyperscale data center platform |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 170 |  |
Attributable to non-controlling interest, net income (loss) | 56 |  |
Attributable to non-controlling interest, other comprehensive income (loss) | (106) |  |
Net income (loss) attributable to partnership | 13 |  |
Attributable to unitholders, other comprehensive income (loss) | (24) |  |
North American residential decarbonization infrastructure business |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 2,759 |  |
Attributable to non-controlling interest, net income (loss) | 57 |  |
Attributable to non-controlling interest, other comprehensive income (loss) | (31) |  |
Net income (loss) attributable to partnership | 20 |  |
Attributable to unitholders, other comprehensive income (loss) | (11) |  |
European residential decarbonization infrastructure business |  |  |
Disclosure of subsidiaries [line items] |  |  |
Revenues | 1,539 | 190 | 91
Attributable to non-controlling interest, net income (loss) | (2) | (19) | (6)
Attributable to non-controlling interest, other comprehensive income (loss) | 69 | (18) | (8)
Net income (loss) attributable to partnership | 0 | (3) | (1)
Attributable to unitholders, other comprehensive income (loss) | $ 22 | $ (3) | $ (1)

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