Business Segments (Product Revenue) (Details) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($)
Revenue from External Customer [Line Items]
Treatment chargesc	$ (101)	$ (133)
Royalty expense	(60)	(95)
PT-FI export dutiese	(18)	(98)
Revenues from contracts with customers	5,116	6,363
Revenues	$ 5,389	6,603
Number of Operating Segments \| segment	4
Indonesia \| Disputes
Revenue from External Customer [Line Items]
PT-FI export dutiese		(18)
Sales \| Not Designated as Hedging Instrument
Revenue from External Customer [Line Items]
Matured derivative financial instruments	$ 273	240
Copper In Concentrates
Revenue from External Customer [Line Items]
Revenue	1,587	2,691
Copper Cathode
Revenue from External Customer [Line Items]
Revenue	1,327	1,435
Refined Copper Products
Revenue from External Customer [Line Items]
Revenue	921	1,116
Purchased Copper
Revenue from External Customer [Line Items]
Revenue	204	70
Gold
Revenue from External Customer [Line Items]
Revenue	531	811
Molybdenum
Revenue from External Customer [Line Items]
Revenue	592	378
Other Products Or Services
Revenue from External Customer [Line Items]
Revenue	$ 133	$ 188

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