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QUALITATIVE AND QUANTITATIVE INFORMATION ON FINANCIAL RISKS - Short Term Credit Ratings (Details)
Dec. 31, 2023
Dec. 31, 2022
P-1 / A-1 / Aaa-mf / AAAm    
Disclosure of credit risk exposure [line items]    
Credit exposure, percentage   1.00%
P-2 / A-2    
Disclosure of credit risk exposure [line items]    
Credit exposure, percentage 92.00% 98.00%
P-3 / A-3 / Not rated    
Disclosure of credit risk exposure [line items]    
Credit exposure, percentage 2.00% 1.00%
Cash and cash equivalents | P-1 / A-1 / Aaa-mf / AAAm    
Disclosure of credit risk exposure [line items]    
Credit exposure, percentage 6.00%