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Consolidated Balance Sheet (USD $) In Millions | Sep. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Current Assets [Abstract] |  |
Cash and Cash Equivalents | $ 135.1 | $ 44.9
Short-Term Investments | 0 | 6.7
Accounts Receivable (Less Allowance of $0.9 and $0.9) | 75.8 | 99.5
Inventories | 69.1 | 60.0
Prepayments and Other | 22.8 | 28.6
Total Current Assets | 302.8 | 239.7
Property, Plant and Equipment - Net | 1,902.1 | 1,805.6
Regulatory Assets | 286.9 | 310.2
Investment in ATC | 97.9 | 93.3
Other Investments | 129.5 | 126.0
Other Non-Current Assets | 35.2 | 34.3
Total Assets | 2,754.4 | 2,609.1
Current Liabilities [Abstract] |  |
Accounts Payable | 44.1 | 75.4
Accrued Taxes | 20.3 | 22.0
Accrued Interest | 13.0 | 13.4
Long-Term Debt Due Within One Year | 12.8 | 13.4
Notes Payable | 5.6 | 1.0
Other | 26.2 | 33.7
Total Current Liabilities | 122.0 | 158.9
Long-Term Debt | 844.4 | 771.6
Deferred Income Taxes | 373.0 | 325.2
Regulatory Liabilities | 44.6 | 43.6
Defined Benefit Pension and Other Postretirement Benefit Plans | 217.1 | 231.4
Other Non-Current Liabilities | 101.9 | 93.4
Total Liabilities | 1,703.0 | 1,624.1
Commitments and Contingencies (Note 14) |  |
ALLETE's Equity [Abstract] |  |
Common Stock Without Par Value, 80 Shares Authorized, 36.8 and 35.8 Shares Outstanding | 676.7 | 636.1
Unearned ESOP Shares | (30.3) | (36.8)
Accumulated Other Comprehensive Loss | (22.7) | (23.2)
Retained Earnings | 427.7 | 399.9
Total ALLETE Equity | 1,051.4 | 976.0
Non-Controlling Interest in Subsidiaries | 0 | 9.0
Total Equity | 1,051.4 | 985.0
Total Liabilities and Equity | $ 2,754.4 | $ 2,609.1

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