Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive (Loss), Net

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- Definition

Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Cash Flow Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge, cumulative gain (loss)	$ 31	$ (58)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)	201	121	$ (265)
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	87	(261)	(298)
Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge, cumulative gain (loss)	63
Gain (loss) on cash flow hedge to be reclassified within 12 months	63
Commodity Contract \| Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)	147	(85)	(323)
Commodity Contract \| Commodity sales revenues \| Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	201	(484)	(732)
Commodity Contract \| Cost of sales and fuel \| Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	(93)	257	474
Interest-Rate Swaps and Treasury Locks
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge, cumulative gain (loss)	(32)
Gain (loss) on cash flow hedge to be reclassified within 12 months	(15)
Interest Rate Contracts \| Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)	54	206	58
Interest Rate Contracts \| Interest expense \| Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	$ (21)	$ (34)	$ (40)