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SEGMENT INFORMATION - Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of operating segments [line items]    
Assets $ 73,961 $ 61,331
Operating segments    
Disclosure of operating segments [line items]    
Assets 27,097 21,074
Operating segments | Utilities    
Disclosure of operating segments [line items]    
Assets 6,184 6,814
Operating segments | Transport    
Disclosure of operating segments [line items]    
Assets 8,601 9,155
Operating segments | Midstream    
Disclosure of operating segments [line items]    
Assets 10,378 3,829
Operating segments | Data    
Disclosure of operating segments [line items]    
Assets 3,405 3,338
Operating segments | Corporate    
Disclosure of operating segments [line items]    
Assets (1,471) (2,062)
Contribution from investments in associates    
Disclosure of operating segments [line items]    
Assets (4,825) (4,895)
Attributable to non- controlling interest    
Disclosure of operating segments [line items]    
Assets 42,415 37,851
Working capital adjustment and other    
Disclosure of operating segments [line items]    
Assets $ 9,274 $ 7,301