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GOODWILL - Cash Generating Units Table (Details) - Goodwill - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill $ 1,726 $ 518 $ 489
U.K. regulated distribution operation      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 37 30  
Global intermodal logistics operation      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 1,163 0  
Brazilian regulated gas transmission operation      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill $ 526 $ 488