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RELATED PARTIES' TRANSACTIONS (Details 1) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]      
Sales of goods and services $ 44 $ 64 $ 57
Purchases of goods and services (118) (267) (97)
Professional fees expense (1) (1) (1)
Other operating expenses and income (2) (2) (2)
Finance income 2 2 4
Dividends received 10 20
Payment of dividends (1) (9)
O C P One [Member]      
IfrsStatementLineItems [Line Items]      
Finance income 1
Dividends received 10 20
Payment of dividends
E M E S A [Member]      
IfrsStatementLineItems [Line Items]      
Finance income
Dividends received
Payment of dividends (1) (9)
C T B [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services 2 2 2
Purchases of goods and services
Professional fees expense
Other operating expenses and income
Greenwind [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services 1
Purchases of goods and services
Professional fees expense
Other operating expenses and income
Refinor One [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services 11 9
Purchases of goods and services (11) (6)
Professional fees expense
Other operating expenses and income
T G S [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services 42 51 45
Purchases of goods and services (53) (53) (43)
Professional fees expense
Other operating expenses and income
Finance income 2 2 3
Dividends received
Payment of dividends
Foundation [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services
Purchases of goods and services
Professional fees expense
Other operating expenses and income (2) (2) (2)
S A C D E [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services
Purchases of goods and services (65) (203) (48)
Professional fees expense
Other operating expenses and income
Salaverri Dellatorre Burgio And Wetzler [Member]      
IfrsStatementLineItems [Line Items]      
Sales of goods and services
Purchases of goods and services
Professional fees expense (1) (1) (1)
Other operating expenses and income