DESCRIPTION OF THE BUSINESS: (Details) $ in Millions		6 Months Ended
	Feb. 28, 2022 USD ($) community item	Jun. 30, 2022 USD ($) T
Percentage of ownership interest held by the parent company		88.90%
Ilo and Cuajone
Number of members in group of protesters | item	472
Number of people in community. | community	5,000
Compensation for usurped land use	$ 5,000.0
Percentage of net profits	5.00%
Reduction in sales		$ 228.0
Unabsorbed fixed costs		$ 14.0
Copper | Ilo and Cuajone
Production loss | T		22,208
Molybdenum | Ilo and Cuajone
Production loss | T		485