v3.26.3
Payments, by Category - 12 months ended Dec. 31, 2025 - USD ($)
$ in Millions
Total
Alcoa Of Australia Limited [Member]
Alcoa World Alumina Brasil Limited [Member]
Alcoa Aluminio S A [Member]
Payments:        
Taxes $ 69.4 $ 69.2   $ 0.2
Royalties 70.9 56.5 $ 13.9 0.5
Fees 9.6 7.9 1.5 0.2
Infrastructure 2.1   2.1  
Comm. Social Resp. 16.5 1.0 15.5  
Total Payments $ 168.5 $ 134.6 $ 33.0 $ 0.9