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RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Narrative (Details) - USD ($)	3 Months Ended
	Sep. 30, 2025	Aug. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Senior Notes
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Debt, face amount	$ 3,000,000,000	$ 3,000,000,000
Treasury Lock, Entered In Q3 2025 | Cash Flow Hedging | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative outstanding	300,000,000
Treasury Lock, Entered In Q2 2025 | Cash Flow Hedging | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative outstanding			$ 700,000,000
Treasury Lock | Cash Flow Hedging | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount settled	1,000,000,000
Interest-rate contracts (Billions of dollars) | Cash Flow Hedging | Derivatives designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative outstanding	$ 0			$ 0

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