XML 22 R8.htm IDEA: XBRL DOCUMENT v3.25.1
CONSOLIDATED STATEMENT OF EQUITY Unaudited - USD ($)
$ in Millions
Total
Common Stock
Accumulated Other Comprehensive Loss
Retained Earnings
Non-Controlling Interest in Subsidiaries
Balance, Beginning of Period at Dec. 31, 2023   $ 1,803.7 $ (20.5) $ 1,026.4 $ 597.0
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   3.7      
Defined Benefit Pension and Other Postretirement Benefit Plans $ (0.4)   (0.4)    
Net Income Attributable to ALLETE 50.7     50.7  
Common Stock Dividends       (40.6)  
Proceeds from Non-Controlling Interest in Subsidiaries – Net         0.0
Net Loss Attributable to Non-Controlling Interest 13.7       (11.0)
Distributions to Non-Controlling Interest         (0.5)
Balance, End of Period at Mar. 31, 2024 3,408.5 1,807.4 (20.9) 1,036.5 585.5
Balance, Beginning of Period at Dec. 31, 2023 0.5        
Redeemable Non-Controlling Interest          
Proceeds from Non-Controlling Interest in Subsidiaries 2.7        
Net Income (Loss) Attributable to Non-Controlling Interest (2.7)        
Total Redeemable Non-Controlling Interest at Mar. 31, 2024 $ 0.5        
Redeemable Non-Controlling Interest          
Dividends Per Share of Common Stock (in usd per share) $ 0.705        
Balance, Beginning of Period at Dec. 31, 2024 $ 3,390.1 1,823.2 (18.1) 1,042.9 542.1
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   4.2      
Defined Benefit Pension and Other Postretirement Benefit Plans 0.0   0.0    
Net Income Attributable to ALLETE 56.1     56.1  
Common Stock Dividends       (42.3)  
Proceeds from Non-Controlling Interest in Subsidiaries – Net         2.0
Net Loss Attributable to Non-Controlling Interest 21.4       (21.5)
Distributions to Non-Controlling Interest         (0.3)
Balance, End of Period at Mar. 31, 2025 3,388.3 $ 1,827.4 $ (18.1) $ 1,056.7 $ 522.3
Balance, Beginning of Period at Dec. 31, 2024 0.4        
Redeemable Non-Controlling Interest          
Proceeds from Non-Controlling Interest in Subsidiaries 0.0        
Net Income (Loss) Attributable to Non-Controlling Interest 0.1        
Total Redeemable Non-Controlling Interest at Mar. 31, 2025 $ 0.5        
Redeemable Non-Controlling Interest          
Dividends Per Share of Common Stock (in usd per share) $ 0.73