Contingencies and Commitments	3 Months Ended
Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]
Contingencies and Commitments	CONTINGENCIES AND COMMITMENTS Indonesia Matters Refer to Note 10 of FCX’s 2025 Form 10-K for further discussion of Indonesia matters. Long-Term Mining Rights. In February 2026, FCX and PTFI entered into a Memorandum of Understanding (MOU) with the Indonesia government for a life of resource extension of operating rights in the Grasberg minerals district beyond the current expiration date in 2041. Under the terms of the MOU, FCX would maintain its current ownership interest in PTFI of 48.76% through 2041 and hold approximately 37% beginning in 2042. The existing governance and operating structure, and terms of the existing shareholder agreement, special mining business license (IUPK) and other agreements in effect will continue over the life of the resource. PTFI and FCX are working with the Indonesia government to complete the license renewal process. The extension of operating rights and other agreed terms are subject to, among other things, the Indonesia government’s issuance of an amended IUPK and entry into definitive agreements. Grasberg Block Cave Ramp-Up. Following the September 8, 2025, external mud rush incident (Mud Rush Incident), PTFI has progressed a series of activities to address the incident and advance preparation for a safe and sustainable restoration of operations. During first-quarter 2026, PTFI completed remediation and restoration activities required for the restart of Production Blocks 2 and 3 and commenced initial ramp-up activities at the end of March 2026. PTFI also continued to advance activities for a planned future start-up of Production Block 1S and advance risk mitigation strategies associated with drainage and cave management technologies. During initial ramp-up activities in Production Blocks 2 and 3, PTFI encountered changes in operating conditions at the Grasberg Block Cave underground mine following the period of inactivity between September 2025 and April 2026, and modifications to the chute system used to load ore into the automated trains will be required to operate at full capacity. As a result, near-term production from Production Blocks 2 and 3 is expected to be limited to approximately 60% of capacity until required modifications to ore loading systems are made. Installation of specialized equipment has commenced and PTFI expects the current bottlenecks can be substantially addressed by mid-2027. Following the Mud Rush Incident and until PTFI’s operations return to normal capacity, a portion of PTFI’s cost of sales are being recognized as idle facility costs, which are non-inventoriable. In first-quarter 2026, PTFI recorded charges for idle facility and restoration costs associated with the Mud Rush Incident totaling $499 million (consisting of $406 million in production and delivery costs and $93 million in depreciation, depletion and amortization (DD&A) expense). In first-quarter 2026, PTFI recognized a gain of $0.7 billion for an insurance settlement associated with the Mud Rush Incident under its property and business interruption policies. PTFI collected this settlement in April 2026. Indonesia Tax Matters On April 10, 2026, PTFI received assessments from the Indonesia tax authorities related to various 2022 audit exceptions for income and other taxes. PTFI believes it has properly determined and paid its taxes and intends to pursue discussions with the Indonesia tax authorities through the objection process. Litigation There were no significant updates to previously reported legal proceedings included in Note 10 of FCX’s 2025 Form 10-K.

Long-Term Mining Rights. In February 2026, FCX and PTFI entered into a Memorandum of Understanding (MOU) with the Indonesia government for a life of resource extension of operating rights in the Grasberg minerals district beyond the current expiration date in 2041.

Under the terms of the MOU, FCX would maintain its current ownership interest in PTFI of 48.76% through 2041 and hold approximately 37% beginning in 2042. The existing governance and operating structure, and terms of the existing shareholder agreement, special mining business license (IUPK) and other agreements in effect will continue over the life of the resource. PTFI and FCX are working with the Indonesia government to complete the license renewal process. The extension of operating rights and other agreed terms are subject to, among other things, the Indonesia government’s issuance of an amended IUPK and entry into definitive agreements.

Grasberg Block Cave Ramp-Up. Following the September 8, 2025, external mud rush incident (Mud Rush Incident), PTFI has progressed a series of activities to address the incident and advance preparation for a safe and sustainable restoration of operations.

During first-quarter 2026, PTFI completed remediation and restoration activities required for the restart of Production Blocks 2 and 3 and commenced initial ramp-up activities at the end of March 2026. PTFI also continued to advance activities for a planned future start-up of Production Block 1S and advance risk mitigation strategies associated with drainage and cave management technologies.

During initial ramp-up activities in Production Blocks 2 and 3, PTFI encountered changes in operating conditions at the Grasberg Block Cave underground mine following the period of inactivity between September 2025 and April 2026, and modifications to the chute system used to load ore into the automated trains will be required to operate at full capacity. As a result, near-term production from Production Blocks 2 and 3 is expected to be limited to approximately 60% of capacity until required modifications to ore loading systems are made. Installation of specialized equipment has commenced and PTFI expects the current bottlenecks can be substantially addressed by mid-2027.

Following the Mud Rush Incident and until PTFI’s operations return to normal capacity, a portion of PTFI’s cost of sales are being recognized as idle facility costs, which are non-inventoriable. In first-quarter 2026, PTFI recorded charges for idle facility and restoration costs associated with the Mud Rush Incident totaling $499 million (consisting of $406 million in production and delivery costs and $93 million in depreciation, depletion and amortization (DD&A) expense).

In first-quarter 2026, PTFI recognized a gain of $0.7 billion for an insurance settlement associated with the Mud Rush Incident under its property and business interruption policies. PTFI collected this settlement in April 2026.

On April 10, 2026, PTFI received assessments from the Indonesia tax authorities related to various 2022 audit exceptions for income and other taxes. PTFI believes it has properly determined and paid its taxes and intends to pursue discussions with the Indonesia tax authorities through the objection process.