XML 15 R2.htm IDEA: XBRL DOCUMENT v3.21.1
Consolidated Balance Sheet - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Current Assets [Abstract]    
Cash and Cash Equivalents $ 159.0 $ 44.3
Accounts Receivable (Less Allowance of $2.6 and $2.5) 113.5 111.9
Inventories – Net 74.0 74.2
Prepayments and Other 31.9 24.5
Total Current Assets 378.4 254.9
Property, Plant and Equipment – Net 4,930.6 4,840.8
Regulatory Assets 472.7 480.9
Equity Investments 301.5 301.2
Other Non-Current Assets 191.3 206.8
Total Assets 6,274.5 6,084.6
Current Liabilities [Abstract]    
Accounts Payable 107.0 110.0
Accrued Taxes 75.2 59.4
Accrued Interest 15.3 19.8
Long-Term Debt Due Within One Year 298.5 203.7
Other 78.9 66.7
Total Current Liabilities 574.9 459.6
Long-Term Debt 1,652.4 1,593.2
Deferred Income Taxes 190.2 195.7
Regulatory Liabilities 517.9 524.8
Defined Benefit Pension and Other Postretirement Benefit Plans 212.5 225.8
Other Non-Current Liabilities 280.2 285.3
Total Liabilities 3,428.1 3,284.4
Commitments, Guarantees and Contingencies (Note 6)
Equity [Abstract]    
Common Stock Without Par Value, 80.0 Shares Authorized, 52.2 and 52.1 Shares Issued and Outstanding 1,467.6 1,460.9
Accumulated Other Comprehensive Loss (30.7) (31.1)
Retained Earnings 883.8 864.8
Total ALLETE Equity 2,320.7 2,294.6
Non-Controlling Interest in Subsidiaries 525.7 505.6
Total Equity 2,846.4 2,800.2
Total Liabilities and Equity $ 6,274.5 $ 6,084.6