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REVENUES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Disclosure of operating segments [line items]        
Revenue $ 1,946 $ 1,685 $ 4,142 $ 3,278
Transport        
Disclosure of operating segments [line items]        
Revenue 692 350 1,519 686
Energy        
Disclosure of operating segments [line items]        
Revenue 584 512 1,178 962
Utilities        
Disclosure of operating segments [line items]        
Revenue 583 743 1,270 1,471
Data Infrastructure        
Disclosure of operating segments [line items]        
Revenue $ 87 $ 80 $ 175 $ 159