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ACCUMULATED OTHER COMPREHENSIVE LOSS - AOCI Representing Unrealized Gains (Loss) Related to Risk Management (Details) - Cash Flow Hedging $ in Millions	Sep. 30, 2023 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of accumulated other comprehensive income attributable primarily to forward starting interest-rate swaps	$ (16)
Commodity contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gain loss on cash flow hedges net of tax accumulated other comprehensive income	19
Price risk cash flow hedge unrealized gain (loss) to be reclassified during next 12 months	19
Interest-rate contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of accumulated other comprehensive income (loss) attributable primarily to settled interest-rate swaps	(35)
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net	$ (15)

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Amount of unrealized gain (loss) related to interest rate derivatives designated as cash flow hedging instruments recorded in accumulated other comprehensive income.

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective, net of tax.

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