Inventories, Including Long-Term Mill and Leach Stockpiles - Schedule of Inventory (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current inventories:
Total materials and supplies, net	$ 1,741	$ 1,669
Mill stockpiles	175	193
Leach stockpiles	1,052	977
Total current mill and leach stockpiles	1,227	1,170
Raw materials (primarily concentrate)	280	536
Work-in-process	275	195
Finished goods	931	927
Total product	1,486	1,658
Long-term inventories:
Mill stockpiles	227	226
Leach stockpiles	1,150	1,161
Total long-term mill and leach stockpiles	1,377	1,387
Inventory obsolescence reserves	$ 39	$ 36