v3.26.1
Statement of Changes in Consolidated Mezzanine Equity and Equity (unaudited) - USD ($)
$ in Millions
Total
Mezzanine Equity Non-Controlling Interest [Member]
Common Stock [Member]
Additional Capital [Member]
Retained (Deficit) Earnings [Member]
Accumulated other comprehensive (loss) income [Member]
Beginning Balance at Dec. 31, 2024 $ 5,157   $ 3 $ 11,587 $ (1,323) $ (5,110)
Net (loss) income 548       548  
Other comprehensive income (loss) (G) 206         206
Stock-based compensation 11     11    
Net effect of tax withholding for compensation plans and exercise of stock options (5)     (5)    
Dividends paid on Alcoa common stock ($0.10 per share) (26)       (26)  
Joint venture formation (C) (76) $ 103   (45)   (31)
Ending Balance at Mar. 31, 2025 5,815   3 11,548 (801) (4,935)
Ending Balance at Mar. 31, 2025   103        
Beginning Balance at Dec. 31, 2024 5,157   3 11,587 (1,323) (5,110)
Other comprehensive income (loss) (G) 377          
Dividends paid on Alcoa preferred stock ($0.10 per share) (1)          
Ending Balance at Jun. 30, 2025 6,135   3 11,560 (664) (4,764)
Ending Balance at Jun. 30, 2025   100        
Beginning Balance at Mar. 31, 2025 5,815   3 11,548 (801) (4,935)
Beginning Balance at Mar. 31, 2025   103        
Net (loss) income 164 (13)     164  
Other comprehensive income (loss) (G) 171 (10)       171
Stock-based compensation 12     12    
Dividends paid on Alcoa preferred stock ($0.10 per share) (1)       (1)  
Dividends paid on Alcoa common stock ($0.10 per share) (26)       (26)  
Ending Balance at Jun. 30, 2025 6,135   3 11,560 (664) (4,764)
Ending Balance at Jun. 30, 2025   100        
Beginning Balance at Dec. 31, 2025 6,118   3 11,575 (271) (5,189)
Beginning Balance at Dec. 31, 2025 76 76        
Net (loss) income 425 (8)     425  
Other comprehensive income (loss) (G) 308 (3)       308
Stock-based compensation 13     13    
Net effect of tax withholding for compensation plans and exercise of stock options (11)     (11)    
Dividends paid on Alcoa common stock ($0.10 per share) (27)       (27)  
Ending Balance at Mar. 31, 2026 6,826   3 11,577 127 (4,881)
Ending Balance at Mar. 31, 2026   65        
Beginning Balance at Dec. 31, 2025 6,118   3 11,575 (271) (5,189)
Beginning Balance at Dec. 31, 2025 76 76        
Other comprehensive income (loss) (G) 454          
Ending Balance at Jun. 30, 2026 7,370   3 11,594 508 (4,735)
Ending Balance at Jun. 30, 2026 67 67        
Beginning Balance at Mar. 31, 2026 6,826   3 11,577 127 (4,881)
Beginning Balance at Mar. 31, 2026   65        
Net (loss) income 407 2     407  
Other comprehensive income (loss) (G) 146         146
Stock-based compensation 17     17    
Dividends paid on Alcoa common stock ($0.10 per share) (26)       (26)  
Ending Balance at Jun. 30, 2026 7,370   $ 3 $ 11,594 $ 508 $ (4,735)
Ending Balance at Jun. 30, 2026 $ 67 $ 67