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GOODWILL - Cash Generating Units Table (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Intangible assets $ 2,847 $ 2,687  
Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 518 489 $ 528
U.K. regulated distribution operation | Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 30 33  
Brazilian regulated gas transmission operation | Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill $ 488 $ 456