GROUP STRUCTURE (Details 7) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
IfrsStatementLineItems [Line Items]
Interests in associates	$ 37	$ 82
Interests in joint ventures	635	820
Interests in associates and joint ventures	672	902
Compania De Inversione De Energia S A [Member]
IfrsStatementLineItems [Line Items]
Interests in joint ventures	303	435
Compania Inversora En Transmision Electrica Citelec S A [Member]
IfrsStatementLineItems [Line Items]
Interests in joint ventures	82	117
C T Barragan S A [Member]
IfrsStatementLineItems [Line Items]
Interests in joint ventures	250	268
Oleoducto De Crudos Pesados Ltd [Member]
IfrsStatementLineItems [Line Items]
Interests in associates	23	15
Transportadora De Gas Del Sur S A [Member]
IfrsStatementLineItems [Line Items]
Interests in associates	$ 14	$ 67

The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2023-01-01
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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