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INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure of information for cash-generating units [line items]    
Intangible assets $ 3,699 $ 2,847
Brazilian regulated gas transmission operation    
Disclosure of information for cash-generating units [line items]    
Intangible assets 2,970 2,816
Global intermodal logistics operation    
Disclosure of information for cash-generating units [line items]    
Intangible assets 704 0
U.K. regulated distribution operation    
Disclosure of information for cash-generating units [line items]    
Intangible assets $ 25 $ 31