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PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT - Cost Model (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Utilities |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, revalued assets, at cost | $ 8,114 | $ 7,776
Transport |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, revalued assets, at cost | 7,548 | 7,574
Midstream |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, revalued assets, at cost | 4,007 | 3,797
Data |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Property, plant and equipment, revalued assets, at cost | $ 8,330 | $ 1,043

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of property, plant and equipment that would have been recognised had the revalued assets been carried under the cost model. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 77 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_77_e&doctype=Standard -URIDate 2020-01-01 + Details
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