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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 815
-SubTopic 25
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480238/815-25-50-1

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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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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E

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- Definition

Nominal mass used to calculate payments on a derivative instrument.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 15
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/815-15/tableOfContent

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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 oz lb	Jun. 30, 2025 USD ($) $ / lb $ / lb $ / oz	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) lb $ / lb $ / lb $ / oz	Jun. 30, 2024 USD ($)
Commodity Contract
Unrealized gains (losses):
Derivative financial instruments		$ (14)	$ 1	$ 67	$ 10
Hedged item – firm sales commitments		14	(1)	(67)	(10)
Realized gains (losses):
Matured derivative financial instruments		10	28	30	29
Matured derivative financial instruments		$ 10	28	$ 30	29
Commodity Contract \| Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb				109
Derivative, Average Forward Price \| $ / lb		4.75		4.75
Forward Contracts \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb				53
Derivative, Average Forward Price \| $ / lb		4.47		4.47
Realized gains (losses):
Matured derivative financial instruments		$ (2)	(17)	$ (40)	(26)
Matured derivative financial instruments		(2)	(17)	(40)	(26)
Copper \| Not Designated as Hedging Instrument
Realized gains (losses):
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ 34	181	$ 150	247
Copper \| Short [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb	440
Derivative, Average Forward Price \| $ / lb		4.34		4.34
Realized gains (losses):
Derivative Average Market Price \| $ / lb		4.49		4.49
Copper \| Long [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb	107
Derivative, Average Forward Price \| $ / lb		4.36		4.36
Realized gains (losses):
Derivative Average Market Price \| $ / lb		4.49		4.49
Gold \| Short [Member] \| Embedded Derivative Financial Instruments \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| oz	81
Derivative, Average Forward Price \| $ / oz		3,334		3,334
Realized gains (losses):
Derivative Average Market Price \| $ / oz		3,297		3,297
gold and other \| Not Designated as Hedging Instrument
Realized gains (losses):
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ 22	$ 45	$ 60	$ 89