XML 92 R77.htm IDEA: XBRL DOCUMENT v3.22.0.1
GOODWILL - Cash Generating Units Table (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Intangible assets $ 2,687 $ 2,948  
Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 489 528 $ 667
U.K. regulated distribution operation | Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill 33 38  
Brazilian regulated gas transmission operation | Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Goodwill $ 456 $ 490