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INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Disclosure of information for cash-generating units [line items]    
Total $ 11,822 $ 14,214
Brazilian regulated gas transmission operation    
Disclosure of information for cash-generating units [line items]    
Total 2,816 2,645
Canadian diversified midstream operation    
Disclosure of information for cash-generating units [line items]    
Total 2,186 2,536
North American rail operation    
Disclosure of information for cash-generating units [line items]    
Total 1,762 1,867
North American residential energy infrastructure operation    
Disclosure of information for cash-generating units [line items]    
Total 1,674 1,720
Peruvian toll roads    
Disclosure of information for cash-generating units [line items]    
Total 1,031 976
Indian Telecom Towers Operation    
Disclosure of information for cash-generating units [line items]    
Total 682 782
U.K. telecom towers operation    
Disclosure of information for cash-generating units [line items]    
Total 537 480
U.K. ports operation    
Disclosure of information for cash-generating units [line items]    
Total 258 289
Brazil electricity transmission operation    
Disclosure of information for cash-generating units [line items]    
Total 0 1,366
Indian toll roads    
Disclosure of information for cash-generating units [line items]    
Total 0 658
Other    
Disclosure of information for cash-generating units [line items]    
Total $ 876 $ 895