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REVENUES (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disclosure of operating segments [line items] |  |  |  |
Revenue | $ 1,685 | $ 1,044 | $ 3,278 | $ 2,057
Utilities |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | 743 | 589 | 1,471 | 1,124
Transport |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | 350 | 341 | 686 | 680
Energy |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | 512 | 114 | 962 | 253
Data Infrastructure |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | $ 80 | $ 0 | $ 159 | $ 0

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