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v3.10.0.1

Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Current assets: |  |  |
Cash and cash equivalents |  | $ 20.9 | $ 27.9
Accounts receivable, less allowance for doubtful accounts |  | 350.4 | 482.8
Production fuel, at weighted average cost |  | 61.4 | 72.3
Gas stored underground, at weighted average cost |  | 49.0 | 44.5
Materials and supplies, at weighted average cost |  | 101.4 | 105.6
Regulatory assets |  | 79.8 | 84.3
Prepaid gross receipts tax |  | 42.2 | 41.3
Other |  | 80.0 | 46.4
Total current assets |  | 785.1 | 905.1
Property, plant and equipment, net |  | 12,462.4 | 11,234.5
Investments: |  |  |
ATC Holdings |  | 293.6 | 274.2
Other |  | 137.7 | 121.9
Total investments |  | 431.3 | 396.1
Other assets: |  |  |
Regulatory assets |  | 1,657.5 | 1,582.4
Deferred charges and other |  | 89.7 | 69.7
Total other assets |  | 1,747.2 | 1,652.1
Total assets |  | 15,426.0 | 14,187.8
Current liabilities: |  |  |
Current maturities of long-term debt |  | 256.5 | 855.7
Commercial paper |  | 441.2 | 320.2
Other short-term borrowings |  | 0.0 | 95.0
Accounts payable |  | 543.3 | 477.3
Regulatory liabilities |  | 142.7 | 140.0
Other |  | 260.4 | 260.8
Total current liabilities |  | 1,644.1 | 2,149.0
Long-term debt, net (excluding current portion) | [1] | 5,246.3 | 4,010.6
Other liabilities: |  |  |
Deferred tax liabilities |  | 1,603.1 | 1,478.4
Regulatory liabilities |  | 1,350.5 | 1,357.2
Pension and other benefit obligations |  | 509.1 | 504.0
Other |  | 287.2 | 306.4
Total other liabilities |  | 3,749.9 | 3,646.0
Commitments and contingencies (Note 17) |  |  |
Common equity: |  |  |
Common stock |  | 2.4 | 2.3
Additional paid-in capital |  | 2,045.5 | 1,845.5
Retained earnings |  | 2,545.9 | 2,346.0
Accumulated other comprehensive income (loss) |  | 1.7 | (0.5)
Shares in deferred compensation trust - 384,580 and 463,365 shares at a weighted average cost of $25.60 and $23.91 per share |  | (9.8) | (11.1)
Total common equity |  | 4,585.7 | 4,182.2
Cumulative preferred stock of Interstate Power and Light Company |  | 200.0 | 200.0
Total equity |  | 4,785.7 | 4,382.2
Total liabilities and equity |  | 15,426.0 | 14,187.8
IPL [Member] |  |  |
Current assets: |  |  |
Cash and cash equivalents |  | 9.7 | 3.6
Accounts receivable, less allowance for doubtful accounts |  | 153.5 | 264.9
Production fuel, at weighted average cost |  | 44.8 | 52.4
Gas stored underground, at weighted average cost |  | 26.1 | 20.3
Materials and supplies, at weighted average cost |  | 55.4 | 60.6
Regulatory assets |  | 39.2 | 41.9
Other |  | 43.1 | 32.3
Total current assets |  | 371.8 | 476.0
Property, plant and equipment, net |  | 6,781.5 | 5,926.2
Other assets: |  |  |
Regulatory assets |  | 1,239.8 | 1,189.7
Deferred charges and other |  | 18.3 | 14.1
Total other assets |  | 1,258.1 | 1,203.8
Total assets |  | 8,411.4 | 7,606.0
Current liabilities: |  |  |
Current maturities of long-term debt |  | 0.0 | 350.0
Commercial paper |  | 50.4 | 0.0
Accounts payable |  | 304.9 | 220.3
Accounts payable to associated companies |  | 28.8 | 50.1
Regulatory liabilities |  | 90.0 | 69.7
Accrued taxes |  | 45.8 | 47.1
Accrued interest |  | 31.2 | 32.1
Other |  | 56.0 | 58.4
Total current liabilities |  | 607.1 | 827.7
Long-term debt, net (excluding current portion) | [1] | 2,552.3 | 2,056.0
Other liabilities: |  |  |
Deferred tax liabilities |  | 957.3 | 910.7
Regulatory liabilities |  | 664.9 | 685.7
Pension and other benefit obligations |  | 178.4 | 173.8
Other |  | 220.7 | 242.4
Total other liabilities |  | 2,021.3 | 2,012.6
Commitments and contingencies (Note 17) |  |  |
Common equity: |  |  |
Common stock |  | 33.4 | 33.4
Additional paid-in capital |  | 2,222.8 | 1,797.8
Retained earnings |  | 774.5 | 678.5
Total common equity |  | 3,030.7 | 2,509.7
Cumulative preferred stock of Interstate Power and Light Company |  | 200.0 | 200.0
Total equity |  | 3,230.7 | 2,709.7
Total liabilities and equity |  | 8,411.4 | 7,606.0
WPL [Member] |  |  |
Current assets: |  |  |
Cash and cash equivalents |  | 8.7 | 23.1
Accounts receivable, less allowance for doubtful accounts |  | 190.1 | 212.2
Production fuel, at weighted average cost |  | 16.6 | 19.9
Gas stored underground, at weighted average cost |  | 22.9 | 24.2
Materials and supplies, at weighted average cost |  | 42.9 | 42.1
Regulatory assets |  | 40.6 | 42.4
Prepaid gross receipts tax |  | 42.2 | 41.3
Other |  | 20.6 | 13.4
Total current assets |  | 384.6 | 418.6
Property, plant and equipment, net |  | 5,287.3 | 4,917.9
Other assets: |  |  |
Regulatory assets |  | 417.7 | 392.7
Deferred charges and other |  | 62.9 | 27.3
Total other assets |  | 480.6 | 420.0
Total assets |  | 6,152.5 | 5,756.5
Current liabilities: |  |  |
Current maturities of long-term debt |  | 250.0 | 0.0
Commercial paper |  | 105.5 | 25.0
Accounts payable |  | 180.9 | 201.7
Accounts payable to associated companies |  | 31.8 | 22.2
Regulatory liabilities |  | 52.7 | 70.3
Accrued interest |  | 25.5 | 25.6
Other |  | 48.2 | 51.4
Total current liabilities |  | 694.6 | 396.2
Long-term debt, net (excluding current portion) | [1] | 1,584.9 | 1,833.4
Other liabilities: |  |  |
Deferred tax liabilities |  | 582.0 | 522.4
Regulatory liabilities |  | 685.6 | 671.5
Capital lease obligations - Sheboygan Falls Energy Facility |  | 60.0 | 70.2
Pension and other benefit obligations |  | 217.7 | 213.7
Other |  | 178.2 | 167.6
Total other liabilities |  | 1,723.5 | 1,645.4
Commitments and contingencies (Note 17) |  |  |
Common equity: |  |  |
Common stock |  | 66.2 | 66.2
Additional paid-in capital |  | 1,309.0 | 1,109.0
Retained earnings |  | 774.3 | 706.3
Total common equity |  | 2,149.5 | 1,881.5
Total equity |  | 2,149.5 | 1,881.5
Total liabilities and equity |  | $ 6,152.5 | $ 5,756.5
[1] | There were no significant sinking fund requirements related to the outstanding long-term debt.

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