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RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Narrative (Details) - Cash Flow Hedging - Derivatives designated as hedging instruments - USD ($)
Jul. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Treasury Lock      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative outstanding   $ 700,000,000  
Treasury Lock | Subsequent Event      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative outstanding $ 300,000,000    
Interest-rate contracts (Billions of dollars)      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative outstanding     $ 0