SUPPLEMENTARY MINERAL RESERVE INFORMATION (UNAUDITED) (Ore Reserves) (Details) oz in Millions, lb in Millions, T in Millions	Dec. 31, 2024 oz lb g T	Sep. 01, 2024	Aug. 31, 2024
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	15,779
PT Freeport Indonesia
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Ownership percentage	48.76%
Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Ownership percentage	72.00%
Other North America
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Ownership percentage	100.00%
Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Ownership percentage		55.08%	53.56%
El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Ownership percentage	51.00%
Consolidated Basis [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore)	14,714
Net Equity Interest [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore)	11,916
Productive Land [Member] | Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	3,804
Average ore grade of copper per metric ton	21.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Sierrita
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,206
Average ore grade of copper per metric ton	23.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	3.00%
Productive Land [Member] | Bagdad
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,430
Average ore grade of copper per metric ton	35.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	2.00%
Productive Land [Member] | Safford [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	746
Average ore grade of copper per metric ton	43.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Chino [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	370
Average ore grade of copper per metric ton	45.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0.04
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Climax [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	141
Average ore grade of copper per metric ton	0.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	15.00%
Productive Land [Member] | Henderson [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	44
Average ore grade of copper per metric ton	0.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	16.00%
Productive Land [Member] | Tyrone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	69
Average ore grade of copper per metric ton	19.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Miami [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	0
Average ore grade of copper per metric ton	0.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	3,894
Average ore grade of copper per metric ton	34.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	1.00%
Productive Land [Member] | El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	611
Average ore grade of copper per metric ton	43.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Grasberg block cave [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	719
Average ore grade of copper per metric ton	99.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0.66
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Deep Mill Level Zone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	326
Average ore grade of copper per metric ton	74.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0.60
Average ore grade of molybdenum per metric ton	0.00%
Productive Land [Member] | Big Gossan [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	48
Average ore grade of copper per metric ton	223.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0.95
Average ore grade of molybdenum per metric ton	0.00%
Undeveloped [Member] | Kucing Liar [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	369
Average ore grade of copper per metric ton	110.00%
Average ore grade of gold per metric ton (in grams per metric ton) | g	0.94
Average ore grade of molybdenum per metric ton	0.00%
Copper
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	100,100.0
Copper | Consolidated Basis [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	97,000
Copper | Net Equity Interest [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	70,200
Copper | Productive Land [Member] | Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	11,100
Copper | Productive Land [Member] | Sierrita
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	9,400
Copper | Productive Land [Member] | Bagdad
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	15,800
Copper | Productive Land [Member] | Safford [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	5,100
Copper | Productive Land [Member] | Chino [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	3,000
Copper | Productive Land [Member] | Climax [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Copper | Productive Land [Member] | Henderson [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Copper | Productive Land [Member] | Tyrone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	300
Copper | Productive Land [Member] | Miami [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	100
Copper | Productive Land [Member] | Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	25,200
Copper | Productive Land [Member] | El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	3,100
Copper | Productive Land [Member] | Grasberg block cave [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	13,400
Copper | Productive Land [Member] | Deep Mill Level Zone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	4,400
Copper | Productive Land [Member] | Big Gossan [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	2,200
Copper | Undeveloped [Member] | Kucing Liar [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	7,100
Gold
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	23.0
Gold | Consolidated Basis [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	23.0
Gold | Net Equity Interest [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	11.5
Gold | Productive Land [Member] | Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Sierrita
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.1
Gold | Productive Land [Member] | Bagdad
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.2
Gold | Productive Land [Member] | Safford [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Chino [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.4
Gold | Productive Land [Member] | Climax [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Henderson [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Tyrone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Miami [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	0.0
Gold | Productive Land [Member] | Grasberg block cave [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	10.3
Gold | Productive Land [Member] | Deep Mill Level Zone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	4.9
Gold | Productive Land [Member] | Big Gossan [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	1.0
Gold | Undeveloped [Member] | Kucing Liar [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves | oz	6.2
Molybdenum
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	3,210
Molybdenum | Consolidated Basis [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	3,160
Molybdenum | Net Equity Interest [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	2,870
Molybdenum | Productive Land [Member] | Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	170
Molybdenum | Productive Land [Member] | Sierrita
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	960
Molybdenum | Productive Land [Member] | Bagdad
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	860
Molybdenum | Productive Land [Member] | Safford [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Chino [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Climax [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	420
Molybdenum | Productive Land [Member] | Henderson [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	140
Molybdenum | Productive Land [Member] | Tyrone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Miami [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	660
Molybdenum | Productive Land [Member] | El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Grasberg block cave [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Deep Mill Level Zone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Productive Land [Member] | Big Gossan [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
Molybdenum | Undeveloped [Member] | Kucing Liar [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Estimated Recoverable Proven And Probable Reserves	0
FCX | Productive Land [Member] | Morenci
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,739
FCX | Productive Land [Member] | Sierrita
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,206
FCX | Productive Land [Member] | Bagdad
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,430
FCX | Productive Land [Member] | Safford [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	746
FCX | Productive Land [Member] | Chino [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	370
FCX | Productive Land [Member] | Climax [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	141
FCX | Productive Land [Member] | Henderson [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	44
FCX | Productive Land [Member] | Tyrone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	69
FCX | Productive Land [Member] | Miami [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	0
FCX | Productive Land [Member] | Cerro Verde
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	2,145
FCX | Productive Land [Member] | El Abra
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	312
FCX | Productive Land [Member] | Grasberg block cave [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	351
FCX | Productive Land [Member] | Deep Mill Level Zone [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	159
FCX | Productive Land [Member] | Big Gossan [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	23
FCX | Undeveloped [Member] | Kucing Liar [Member]
Ore, average ore grades and recoverable proven and probable reserves [Line Items]
Amount of ore reserves (in metric tons of ore) | T	180