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INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Disclosure of information for cash-generating units [line items]    
Total $ 14,187 $ 15,845
North American Residential Energy Infrastructure Operation    
Disclosure of information for cash-generating units [line items]    
Total 3,161 3,267
Brazilian regulated gas transmission operation    
Disclosure of information for cash-generating units [line items]    
Total 2,547 2,970
Canadian diversified midstream operation    
Disclosure of information for cash-generating units [line items]    
Total 1,896 2,050
North American Rail Operation    
Disclosure of information for cash-generating units [line items]    
Total 1,702 1,732
European Residential Decarbonization Infrastructure Business    
Disclosure of information for cash-generating units [line items]    
Total 1,215 1,198
Global Intermodal Logistics Operation    
Disclosure of information for cash-generating units [line items]    
Total 693 704
Indian Telecom Towers Operation    
Disclosure of information for cash-generating units [line items]    
Total 640 652
U.K. Telecom Towers Operation    
Disclosure of information for cash-generating units [line items]    
Total 559 563
U.K. port operation    
Disclosure of information for cash-generating units [line items]    
Total 270 272
Other    
Disclosure of information for cash-generating units [line items]    
Total 655 1,800
Brazilian Electricity Transmission Operation    
Disclosure of information for cash-generating units [line items]    
Total 444 505
North American Retail Colocation Data Center Operation    
Disclosure of information for cash-generating units [line items]    
Total $ 405 $ 132