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Consolidated Balance Sheets - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 12.5 $ 86.6
Restricted cash and equivalents 7.1 6.4
Accounts receivable, net 205.4 350.3
Materials, supplies and fuel 155.4 160.9
Income tax receivable, net 19.9 18.5
Regulatory assets, current 156.1 175.7
Other current assets 43.1 28.2
Total current assets 599.5 826.6
Property, plant and equipment 9,383.0 8,917.2
Less accumulated depreciation (1,913.4) (1,797.9)
Total property, plant and equipment, net 7,469.6 7,119.3
Other assets:    
Goodwill 1,299.5 1,299.5
Intangible assets, net 7.9 8.4
Regulatory assets, non-current 276.1 304.4
Other assets, non-current 66.1 62.2
Total other assets, non-current 1,649.6 1,674.5
TOTAL ASSETS 9,718.7 9,620.4
Current liabilities:    
Accounts payable 136.3 186.4
Accrued liabilities 291.7 293.3
Derivative liabilities, current 4.5 6.5
Regulatory liabilities, current 86.2 98.9
Notes payable 17.5 0.0
Current maturities of long-term debt 0.0 600.0
Total current liabilities 536.2 1,185.1
Long-term debt, net of current maturities 4,248.8 3,801.2
Deferred credits and other liabilities:    
Deferred income tax liabilities, net 603.3 548.0
Regulatory liabilities, non-current 470.8 467.7
Benefit plan liabilities 122.9 123.9
Other deferred credits and other liabilities 204.5 188.7
Total deferred credits and other liabilities 1,401.5 1,328.3
Commitments, contingencies and guarantees (Note 3)
Equity:    
Common stock $1 par value; 100,000,000 shares authorized; issued 71,676,746 and 68,265,042 shares, respectively 71.7 68.3
Additional paid-in capital 2,193.9 2,007.7
Retained earnings 1,197.5 1,158.2
Treasury stock, at cost - 101,471 and 68,073 shares, respectively (5.9) (4.1)
Accumulated other comprehensive income (loss) (10.6) (14.8)
Total stockholders’ equity 3,446.6 3,215.3
Non-controlling interest 85.6 90.5
Total equity 3,532.2 3,305.8
TOTAL LIABILITIES AND TOTAL EQUITY $ 9,718.7 $ 9,620.4