RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Schedule of Cash Flow Hedges (Details) - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2026
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	$ (286)
Commodity contracts
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives		$ (370)
Commodity contracts \| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	(2)	16
Commodity contracts \| Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseNonoperating
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives		(8)
Commodity contracts \| Location, Statement of Income, Balance [Axis]: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	(280)	$ (378)
Interest-rate contracts \| Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseNonoperating
Derivative [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	$ (4)