The average market price for a group of price risk forward or futures contracts, such as gas futures contracts.

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Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

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No definition available.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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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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Nominal mass used to calculate payments on a derivative instrument.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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Financial Instruments - Unrealized gains losses (Details) oz in Thousands, lb in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Jun. 30, 2023 lb oz	Jun. 30, 2026 USD ($) $ / lb $ / lb $ / oz	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) lb $ / lb $ / lb $ / oz	Jun. 30, 2025 USD ($)
Commodity Contract
Unrealized gains (losses):
Derivative financial instruments		$ 30	$ (14)	$ (19)	$ 67
Hedged item – firm sales commitments		(30)	14	19	(67)
Realized gains (losses):
Matured derivative financial instruments		38	10	73	30
Matured derivative financial instruments		$ 38	10	$ 73	30
Commodity Contract \| Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb				145
Derivative, Average Forward Price \| $ / lb		5.95		5.95
Forward Contracts \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb				30
Derivative, Average Forward Price \| $ / lb		6.18		6.18
Realized gains (losses):
Matured derivative financial instruments		$ (46)	(2)	$ (35)	(40)
Matured derivative financial instruments		(46)	(2)	(35)	(40)
Copper \| Not Designated as Hedging Instrument
Realized gains (losses):
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ 138	34	$ 117	150
Copper \| Short [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb	194
Derivative, Average Forward Price \| $ / lb		6.00		6.00
Realized gains (losses):
Derivative Average Market Price \| $ / lb		6.07		6.07
Copper \| Long [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb	143
Derivative, Average Forward Price \| $ / lb		6.00		6.00
Realized gains (losses):
Derivative Average Market Price \| $ / lb		6.07		6.07
Gold \| Short [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| oz	5
Derivative, Average Forward Price \| $ / oz		4,588		4,588
Realized gains (losses):
Derivative Average Market Price \| $ / oz		4,065		4,065
gold and other \| Not Designated as Hedging Instrument
Realized gains (losses):
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ (26)	$ 22	$ (25)	$ 60