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INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure of information for cash-generating units [line items]    
Total $ 14,521 $ 15,845
North American residential decarbonization infrastructure operation    
Disclosure of information for cash-generating units [line items]    
Total 3,006 3,267
Brazilian regulated gas transmission operation    
Disclosure of information for cash-generating units [line items]    
Total 2,299 2,970
Canadian diversified midstream operation    
Disclosure of information for cash-generating units [line items]    
Total 1,718 2,050
North American rail operation    
Disclosure of information for cash-generating units [line items]    
Total 1,674 1,732
Indian telecom tower operation    
Disclosure of information for cash-generating units [line items]    
Total 1,175 652
European residential decarbonization infrastructure business    
Disclosure of information for cash-generating units [line items]    
Total 1,196 1,198
Brazil electricity transmission operation    
Disclosure of information for cash-generating units [line items]    
Total 1,023 505
Global intermodal logistics operation    
Disclosure of information for cash-generating units [line items]    
Total 577 704
U.K. wireless infrastructure operation    
Disclosure of information for cash-generating units [line items]    
Total 549 563
North American retail colocation data center operations    
Disclosure of information for cash-generating units [line items]    
Total 454 132
U.K. ports operation    
Disclosure of information for cash-generating units [line items]    
Total 267 272
Other    
Disclosure of information for cash-generating units [line items]    
Total $ 583 $ 1,800