INCOME TAXES (Narrative) (Details) - USD ($) $ in Millions			1 Months Ended	12 Months Ended
	Dec. 30, 2019	Jan. 01, 2017	Jan. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Income Taxes [Line Items]
Total income taxes paid to all jurisdictions				$ 3,100	$ 1,300	$ 397
Tax refunds received from all jurisdictions				46	109	$ 265
Tax Attributes
Foreign tax credits				1,514	1,536
Valuation allowances				3,985	4,087
Valuation allowance, increase (decrease)				102
Deferred tax assets, alternative minimum tax refunds				$ 24	$ 244
U.S. federal statutory tax rate				21.00%	21.00%	21.00%
Interest on income taxes accrued				$ 551	$ 620	$ 307
Unrecognized tax benefits				810	808	474	$ 491
Unrecognized tax benefits that would impact the effective tax rate				689
Unrecognized tax benefits that would impact the effective tax rate, net of tax benefits				485
Deferred income taxes				36	(171)	181
PT Freeport Indonesia
Tax Attributes
Loss Contingency, Loss in Period, Including Tax Charges				13	384	46	$ 304
Deferred income taxes				69
Valuation allowance for operating loss carryforwards
Tax Attributes
Valuation allowances				1,800
Net Operating Losses
Tax Attributes
Valuation allowance, increase (decrease)				$ 163	219	11
Domestic Deferred Tax Assets
Tax Attributes
Valuation allowance, increase (decrease)					(228)	250
SUNAT | Cerro Verde
Tax Attributes
Foreign income tax rate under new stability agreement				32.00%
Foreign Tax Authority
Tax Attributes
Tax Credit Carryforward, Valuation Allowance				$ 1,500
Income Tax Credits and Adjustments				22	105	$ 75
Foreign Tax Authority | Tax Authority, Spain
Tax Attributes
Operating Loss Carryforwards				500
Foreign Tax Authority | Tax Authority, In Papau, Indonesia
Tax Attributes
Operating Loss Carryforwards				$ 500
Foreign Tax Authority | Chili - Service of Internal Taxes
Tax Attributes
U.S. federal statutory tax rate							35.00%
Foreign Tax Authority | Chili - Service of Internal Taxes | Prior to September 2014
Tax Attributes
U.S. federal statutory tax rate				35.00%
Foreign Tax Authority | Chili - Service of Internal Taxes | 2020 and thereafter
Tax Attributes
U.S. federal statutory tax rate						44.50%
Foreign Tax Authority | Chili - Service of Internal Taxes | Tax years 2017 through 2021
Tax Attributes
U.S. federal statutory tax rate				35.00%
Foreign Tax Authority | Chili - Service of Internal Taxes | Tax Year 2022 and Thereafter
Tax Attributes
U.S. federal statutory tax rate			44.50%	44.50%
Foreign Tax Authority | Chili - Service of Internal Taxes | Tax Years 2018 to 2023 | Minimum
Tax Attributes
Mining royalty tax rate				5.00%
Foreign Tax Authority | Chili - Service of Internal Taxes | Tax Years 2018 to 2023 | Maximum
Tax Attributes
Mining royalty tax rate				14.00%
Foreign Tax Authority | SUNAT | 2019 and thereafter
Tax Attributes
U.S. federal statutory tax rate							26.00%
Dividend tax rate							9.30%
Foreign Tax Authority | SUNAT | 2017
Tax Attributes
Dividend tax rate		5.00%
Corporate Income Tax Rate		29.50%
Foreign Tax Authority | Settlement with Taxing Authority | Tax Years 2012 to 2018
Tax Attributes
Payments for legal settlements	$ 250
Domestic Tax Authority
Tax Attributes
Operating Loss Carryforwards				$ 5,500
Valuation allowances				700
State and Local Jurisdiction
Tax Attributes
Operating Loss Carryforwards				10,500
PT Rio Tinto | Net Operating Losses
Tax Attributes
Valuation allowance, increase (decrease)				104
Indefinite-Lived Carryforward
Tax Attributes
Operating Loss Carryforwards				400
Other (expense) benefit | PT Freeport Indonesia
Tax Attributes
Loss Contingency, Loss in Period, Including Tax Charges				5	155	$ 9
Deferred income taxes					76
Interest expense | PT Freeport Indonesia
Tax Attributes
Loss Contingency, Loss in Period, Including Tax Charges					43	35
Income expense (benefit) | PT Freeport Indonesia
Tax Attributes
Loss Contingency, Loss in Period, Including Tax Charges				$ 8	186	$ 2
Deferred income taxes					$ 7