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NON-FINANCIAL ASSETS AND LIABILITIES (Details 5) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]      
Increases for incorporation [1] $ 295  
Provisions For Contingencies [Member]      
IfrsStatementLineItems [Line Items]      
Provisions, beginning 106 103 $ 139
Increases 5 16 21
Increases for incorporation [2]    
Decreases (1) (1)
Gain on monetary position net (2)   (15)
Reversal of unused amounts (1) (13) [3] (8)
Provisions, ending 107 106 103
Reclasification liabilities associated to assets classified as held for sale     (33)
Asset Retirement Obligation [Member]      
IfrsStatementLineItems [Line Items]      
Provisions, beginning 21 21 22
Increases 6 3 2
Increases for incorporation [2] 1    
Decreases (1)
Gain on monetary position net  
Reversal of unused amounts (1) (2) [3] (3)
Provisions, ending 27 21 21
Reclasification liabilities associated to assets classified as held for sale    
Environmental Remediations [Member]      
IfrsStatementLineItems [Line Items]      
Provisions, beginning 18 3 3
Increases 15
Increases for incorporation [2]    
Decreases (1)
Gain on monetary position net  
Reversal of unused amounts [3]
Provisions, ending $ 17 $ 18 3
Reclasification liabilities associated to assets classified as held for sale    
[1] See Notes 5.1.3 and 5.1.5.
[2] See Note 5.1.3.
[3] Includes recovery of US$ 12.5 million related to waive the timely granted dispatch of Las Armas Wind Farm (see Note 2.1.2.3).