v3.26.3
INVESTMENTS - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Jun. 30, 2026
Dec. 31, 2025
Investments            
Marketable equity and other securities $ 409,000,000   $ 409,000,000     $ 740,000,000
LunR Royalties Corp.            
Investments            
Noncontrolling interest, ownership percentage by noncontrolling owners (as a percent)         13.00%  
Marketable equity securities         $ 268,000,000  
Pueblo Viejo Mine | Related Party            
Investments            
Due from related parties 0   0     0
Due to related parties 0   0     0
Pueblo Viejo Mine            
Investments            
Share of loans included in investment 483,000,000   483,000,000     518,000,000
Interest receivable $ 5,000,000   $ 5,000,000     $ 60,000,000
Ownership interest (as a percent) 40.00%   40.00%      
Purchases $ 286,000,000 $ 259,000,000 $ 898,000,000 $ 626,000,000    
Lundin Gold, Inc            
Investments            
Ownership interest (as a percent) 32.00%   32.00%      
Marketable equity and other securities $ 4,726,000,000   $ 4,726,000,000