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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Statement of Financial Position (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of subsidiaries [line items]      
Current Assets $ 7,979 $ 6,686  
Non-Current Assets 92,805 66,283  
Current Liabilities 11,705 8,377  
Non-Current Liabilities 55,063 39,038  
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]      
Current Assets 312 264  
Non-Current Assets 5,579 4,821  
Current Liabilities 387 690  
Non-Current Liabilities 3,744 2,864  
Non-Controlling Interest in Operating Subsidiaries 344 298  
Partnership capital 1,416 1,233  
Brazilian regulated gas transmission operation      
Disclosure of subsidiaries [line items]      
Current Assets 747 737  
Non-Current Assets 3,576 3,362  
Current Liabilities 549 486  
Non-Current Liabilities 3,099 3,034  
Non-Controlling Interest in Operating Subsidiaries 526 460  
Partnership capital 149 119  
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]      
Current Assets 257 209  
Non-Current Assets 1,288 989  
Current Liabilities 187 155  
Non-Current Liabilities 709 535  
Non-Controlling Interest in Operating Subsidiaries 559 442  
Partnership capital 90 66  
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]      
Current Assets 19    
Non-Current Assets 532    
Current Liabilities 11    
Non-Current Liabilities 323    
Non-Controlling Interest in Operating Subsidiaries 150    
Partnership capital 67    
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]      
Current Assets 926    
Non-Current Assets 8,730    
Current Liabilities 797    
Non-Current Liabilities 5,021    
Non-Controlling Interest in Operating Subsidiaries 2,832    
Partnership capital 1,006    
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
North American residential decarbonization infrastructure business      
Disclosure of subsidiaries [line items]      
Current Assets   405  
Non-Current Assets   5,096  
Current Liabilities   483  
Non-Current Liabilities   3,222  
Non-Controlling Interest in Operating Subsidiaries   1,322  
Partnership capital   474  
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]      
Current Assets 192 146  
Non-Current Assets 1,562 1,718  
Current Liabilities 937 308  
Non-Current Liabilities 133 949  
Non-Controlling Interest in Operating Subsidiaries 652 590  
Partnership capital 32 17  
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)  
European residential decarbonization infrastructure business      
Disclosure of subsidiaries [line items]      
Current Assets 681    
Non-Current Assets 3,581    
Current Liabilities 491    
Non-Current Liabilities 1,360    
Non-Controlling Interest in Operating Subsidiaries 1,825    
Partnership capital 586    
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)
European residential decarbonization infrastructure business      
Disclosure of subsidiaries [line items]      
Current Assets   69  
Non-Current Assets   301  
Current Liabilities   37  
Non-Current Liabilities   76  
Non-Controlling Interest in Operating Subsidiaries   223  
Partnership capital   34  
North American rail operation      
Disclosure of subsidiaries [line items]      
Current Assets 686 675  
Non-Current Assets 10,054 9,630  
Current Liabilities 791 544  
Non-Current Liabilities 4,866 4,856  
Non-Controlling Interest in Operating Subsidiaries 4,583 4,422  
Partnership capital 500 483  
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]      
Current Assets 121 106  
Non-Current Assets 1,239 1,112  
Current Liabilities 70 67  
Non-Current Liabilities 928 833  
Non-Controlling Interest in Operating Subsidiaries 147 129  
Partnership capital 215 189  
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]      
Current Assets 102 237  
Non-Current Assets 425 531  
Current Liabilities 105 112  
Non-Current Liabilities 115 284  
Non-Controlling Interest in Operating Subsidiaries 218 265  
Partnership capital 89 107  
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]      
Current Assets 130 127  
Non-Current Assets 1,295 1,202  
Current Liabilities 13 10  
Non-Current Liabilities 652 616  
Non-Controlling Interest in Operating Subsidiaries 631 584  
Partnership capital 129 119  
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]      
Current Assets   717  
Non-Current Assets   0  
Current Liabilities   478  
Non-Current Liabilities   0  
Non-Controlling Interest in Operating Subsidiaries   164  
Partnership capital   75  
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]      
Current Assets 672 577  
Non-Current Assets 14,346 14,306  
Current Liabilities 1,763 2,370  
Non-Current Liabilities 7,463 7,342  
Non-Controlling Interest in Operating Subsidiaries 2,528 2,496  
Partnership capital 3,264 2,675  
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]      
Current Assets 283 539  
Non-Current Assets 1,744 1,515  
Current Liabilities 149 564  
Non-Current Liabilities 769 452  
Non-Controlling Interest in Operating Subsidiaries 677 633  
Partnership capital 432 405  
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
Canadian natural gas gathering and processing operation      
Disclosure of subsidiaries [line items]      
Current Assets 108 177  
Non-Current Assets 3,750 3,633  
Current Liabilities 121 97  
Non-Current Liabilities 1,890 1,802  
Non-Controlling Interest in Operating Subsidiaries 1,320 1,365  
Partnership capital 527 546  
Revenues 547 561 551
Attributable to non-controlling interest, net income (loss) 14 32 62
Attributable to non-controlling interest, other comprehensive income (loss) (27) (37) 52
Net income (loss) attributable to partnership 5 13 25
Attributable to unitholders, other comprehensive income (loss) (11) (15) 21
U.S. colocation data center operation      
Disclosure of subsidiaries [line items]      
Current Assets 64 70  
Non-Current Assets 1,459 1,528  
Current Liabilities 197 151  
Non-Current Liabilities 690 783  
Non-Controlling Interest in Operating Subsidiaries 456 476  
Partnership capital 180 188  
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]      
Current Assets 19 15  
Non-Current Assets 589 512  
Current Liabilities 18 14  
Non-Current Liabilities 170 160  
Non-Controlling Interest in Operating Subsidiaries 299 252  
Partnership capital 121 101  
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]      
Current Assets 807 294  
Non-Current Assets 8,026 7,557  
Current Liabilities 775 547  
Non-Current Liabilities 7,299 5,988  
Non-Controlling Interest in Operating Subsidiaries 452 914  
Partnership capital 307 402  
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]      
Current Assets 939 1,126  
Non-Current Assets 66 88  
Current Liabilities 2,661 761  
Non-Current Liabilities 4,680 3,483  
Non-Controlling Interest in Operating Subsidiaries (366) 22  
Partnership capital (5,970) (3,052)  
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  
Global intermodal logistics operation      
Disclosure of subsidiaries [line items]      
Current Assets 435    
Non-Current Assets 11,950    
Current Liabilities 984    
Non-Current Liabilities 6,639    
Non-Controlling Interest in Operating Subsidiaries 3,597    
Partnership capital 1,165    
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]      
Current Assets 272    
Non-Current Assets 4,370    
Current Liabilities 316    
Non-Current Liabilities 1,959    
Non-Controlling Interest in Operating Subsidiaries 1,920    
Partnership capital 447    
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)