STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION\ (Equity RSUs and PSUs) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent Addition or Reduction In Restricted Stock Units If Performance Is Below Level Defined In Agreement	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Granted in period (number of RSUs and PSUs)	500,000	400,000	400,000
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Performance Share Unit Payout	200.00%
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Share Unit Payout	0.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Restricted Stock Units (RSUs) and Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Balance at beginning of period (in number of RSUs and PSUs)	5,723,084
Granted in period (number of RSUs and PSUs)	2,292,300
Vested in Period (number of RSUs and PSUs)	(1,957,163)
Forfeited in Period (number of RSUs and PSUs)	(114,579)
Balance at end of period (in number of RSUs and PSUs)	5,943,642	5,723,084
Beginning Balance - weighted average grant date fair value	$ 39.21
Granted - Weighted average grant date fair value	37.84
Vested - weighted average grant date fair value	40.48
Forfeited - weighted average grant date fair value	39.21
Ending balance - weighted average grant date fair value	$ 38.26	$ 39.21
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	$ 302
Fair value of RSUs and PSUs granted	87	$ 92	$ 93
Intrinsic value of RSUs and PSUs vested	77	$ 84	$ 136
Total unrecognized compensation cost related to unvested RSUs and PSUs expected to be recognized over a weighted-average period	$ 26
Weighted-average period used in calculating unrecognized compensation cost, RSUs and PSUs (in years)	1 year 2 months 12 days

FREEPORT-MCMORAN INC 10-K