XML 20 R8.htm IDEA: XBRL DOCUMENT v3.22.2
Consolidated Statement of Equity - USD ($)
$ in Millions
Total
Common Stock [Member]
Accumulated Other Comprehensive Loss [Member]
Retained Earnings [Member]
Non-controlling Interest [Member]
Balance, Beginning Balance at Dec. 31, 2020   $ 1,460.9 $ (31.1) $ 864.8 $ 505.6
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   13.2      
Unrealized Loss on Securities $ 0.0   0.0    
Defined Benefit Pension and Other Postretirement Plans 0.8   0.8    
Net Income Attributable ALLETE 79.7     79.7  
Common Stock Dividends 65.7     (65.7)  
Proceeds from Non-controlling Interest in Subsidiaries - Net of Issuance Costs 28.9       28.9
Net Loss Attributable to Non-Controlling Interest (14.6)       (14.6)
Distributions to Non-controlling Interest         (0.6)
Balance, End of Period at Jun. 30, 2021 $ 2,841.9 1,474.1 (30.3) 878.8 519.3
Consolidated Statement of Equity [Roll Forward]          
Dividends Per Share of Common Stock $ 1.26        
Balance, Beginning Balance at Mar. 31, 2021   1,467.6 (30.7) 883.8 525.7
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   6.5      
Unrealized Loss on Securities $ 0.0   0.0    
Defined Benefit Pension and Other Postretirement Plans 0.4   0.4    
Net Income Attributable ALLETE 27.9     27.9  
Common Stock Dividends       (32.9)  
Proceeds from Non-controlling Interest in Subsidiaries - Net of Issuance Costs         0.0
Net Loss Attributable to Non-Controlling Interest (6.2)       (6.2)
Distributions to Non-controlling Interest         (0.2)
Balance, End of Period at Jun. 30, 2021 $ 2,841.9 1,474.1 (30.3) 878.8 519.3
Consolidated Statement of Equity [Roll Forward]          
Dividends Per Share of Common Stock $ 0.63        
Balance, Beginning Balance at Dec. 31, 2021 $ 2,946.3 1,536.7 (23.8) 900.2 533.2
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   235.0      
Unrealized Loss on Securities (0.4)   (0.4)    
Defined Benefit Pension and Other Postretirement Plans 0.3   0.3    
Net Income Attributable ALLETE 103.9     103.9  
Common Stock Dividends 71.5     (71.5)  
Proceeds from Non-controlling Interest in Subsidiaries - Net of Issuance Costs 155.7       182.9
Net Loss Attributable to Non-Controlling Interest (36.6)       (36.6)
Distributions to Non-controlling Interest         (1.0)
Balance, End of Period at Jun. 30, 2022 $ 3,358.9 1,771.7 (23.9) 932.6 678.5
Consolidated Statement of Equity [Roll Forward]          
Dividends Per Share of Common Stock $ 1.30        
Balance, Beginning Balance at Mar. 31, 2022   1,541.3 (24.0) 932.0 694.2
Consolidated Statement of Equity [Roll Forward]          
Common Stock Issued   230.4      
Unrealized Loss on Securities $ (0.1)   (0.1)    
Defined Benefit Pension and Other Postretirement Plans 0.2   0.2    
Net Income Attributable ALLETE 37.6     37.6  
Common Stock Dividends       (37.0)  
Proceeds from Non-controlling Interest in Subsidiaries - Net of Issuance Costs         1.7
Net Loss Attributable to Non-Controlling Interest (16.8)       (16.8)
Distributions to Non-controlling Interest         (0.6)
Balance, End of Period at Jun. 30, 2022 $ 3,358.9 $ 1,771.7 $ (23.9) $ 932.6 $ 678.5
Consolidated Statement of Equity [Roll Forward]          
Dividends Per Share of Common Stock $ 0.65