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NON-WHOLLY OWNED SUBSIDIARIES - Summarized Cash Flow Activities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of subsidiaries [line items]      
Cash flow activities, operating $ 3,131 $ 2,772 $ 2,530
Cash flow activities, investing (3,365) (1,173) (4,609)
Cash from financing activities 56 (995) 2,126
Revenues 14,427 11,537 8,885
Non-Wholly Owned Subsidiaries      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 2,999 2,685 2,396
Cash flow activities, investing (3,335) (1,149) (4,537)
Cash from financing activities 157 (927) 2,200
Revenues 14,131 11,233 8,631
Australian export terminal      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating     68
Cash flow activities, investing     (27)
Cash from financing activities     (57)
Revenues     297
Colombian regulated distribution operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating     2
Cash flow activities, investing     0
Cash from financing activities     (2)
Revenues     6
Brazilian regulated gas transmission operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 783 768 634
Cash flow activities, investing (80) (32) (34)
Cash from financing activities (824) (473) (588)
Revenues 1,314 1,074 942
Colombian natural gas distribution operation      
Disclosure of subsidiaries [line items]      
Revenues     793
Brazilian transmission operation      
Disclosure of subsidiaries [line items]      
Revenues     40
North American rail operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 515 511 616
Cash flow activities, investing (250) (98) (24)
Cash from financing activities (210) (424) (606)
Revenues 2,253 2,157 1,974
U.K. port operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 31 66 42
Cash flow activities, investing (61) (53) (25)
Cash from financing activities 42 (24) (11)
Revenues     235
Australian port operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 26 11 28
Cash flow activities, investing (44) (21) (32)
Cash from financing activities (3) (18) 26
Revenues   412 381
Chilean toll roads      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 0 46 49
Cash flow activities, investing 0 (172) (1)
Cash from financing activities 0 85 (34)
Revenues   138 116
Peruvian toll roads      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 42 30 18
Cash flow activities, investing (19) (27) (22)
Cash from financing activities 0 0 0
Revenues 111 96 81
Indian toll roads      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 51 (2) 11
Cash flow activities, investing (15) 3 (18)
Cash from financing activities (26) 5 19
Revenues 143 117 111
North American gas storage operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 61 196 68
Cash flow activities, investing (37) (35) 12
Cash from financing activities (26) (179) (53)
Revenues 246 371 143
Canadian district energy operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 0 30 42
Cash flow activities, investing 0 (38) (97)
Cash from financing activities 0 7 55
Revenues   72 127
U.S. district energy operation      
Disclosure of subsidiaries [line items]      
Revenues     137
Western Canadian natural gas gathering and processing operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 197 235 156
Cash flow activities, investing (68) (91) (299)
Cash from financing activities (153) (135) 114
Revenues 561 551 501
North American residential infrastructure business      
Disclosure of subsidiaries [line items]      
Revenues     1,274
Indian gas transmission operation      
Disclosure of subsidiaries [line items]      
Revenues   342 268
North American data center operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (5) 38 77
Cash flow activities, investing (300) (25) (16)
Cash from financing activities 318 (15) (63)
Revenues 221 249 273
Australian data center operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 5 16 7
Cash flow activities, investing (131) (105) (3)
Cash from financing activities 114 104 (3)
Revenues 22 23 24
U.K. telecom towers operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 61 16 27
Cash flow activities, investing (170) (15) (20)
Cash from financing activities 120 2 (9)
Revenues     51
Indian telecom tower operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 315 189 245
Cash flow activities, investing (243) (416) (3,451)
Cash from financing activities (28) 261 3,331
Revenues   1,257 360
Holding LP      
Disclosure of subsidiaries [line items]      
Revenues     9
U.S. district energy operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 0 13 51
Cash flow activities, investing 0 (34) (50)
Cash from financing activities 0 25 0
Revenues   74  
North American residential infrastructure business      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (116) (79) (42)
Cash flow activities, investing (352) (107) (5)
Cash from financing activities 480 189 45
Revenues 1,695 1,444  
Indian gas transmission operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 132 187 136
Cash flow activities, investing 5 (51) (14)
Cash from financing activities (123) (120) (117)
Revenues 337    
UK residential infrastructure business      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (11) 0  
Cash flow activities, investing (5) 1  
Cash from financing activities 16 0  
Revenues 84 2  
European residential infrastructure business      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (14) (6)  
Cash flow activities, investing (30) 15  
Cash from financing activities 55 0  
Revenues 106 89  
U.K. regulated distribution operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 293 273 241
Cash flow activities, investing (432) 344 (372)
Cash from financing activities 101 (582) 133
Revenues 572 569 488
Colombian natural gas distribution operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 154 91 89
Cash flow activities, investing (32) (38) (35)
Cash from financing activities (99) (41) (55)
Revenues 901 862  
Brazil electricity transmission operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 90 29 13
Cash flow activities, investing (58) 70 0
Cash from financing activities (120) (24) (14)
Revenues 224 90  
Canadian diversified midstream operation      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating 568 198  
Cash flow activities, investing (713) (246)  
Cash from financing activities 144 108  
Revenues 3,150 906  
U.S. fiber business      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (5) 0  
Cash flow activities, investing (9) 0  
Cash from financing activities 17 0  
Revenues 0    
Holding LP and other      
Disclosure of subsidiaries [line items]      
Cash flow activities, operating (174) (171) (182)
Cash flow activities, investing (291) 22 (4)
Cash from financing activities 362 322 $ 89
Revenues $ 6 $ 5