BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 2.4	$ 2.7
Accounts receivable and unbilled revenues, net of reserves of $11.1 and $18.3, respectively	226.6	190.8
Accounts receivable from related parties	26.1	27.6
Materials, supplies, and inventories	112.9	92.7
Prepaid taxes	40.0	39.0
Derivative assets	22.2	3.1
Other	12.3	9.1
Current assets	442.5	365.0
Long-term assets
Property, plant, and equipment, net of accumulated depreciation and amortization of $1,808.4 and $1,750.7, respectively	5,098.6	4,885.9
Regulatory assets	347.9	449.4
Goodwill	36.4	36.4
Pension and OPEB assets	260.7	159.2
Other	49.6	38.0
Long-term assets	5,793.2	5,568.9
Total assets	6,235.7	5,933.9
Current liabilities
Short-term debt	331.0	210.5
Current portion of long-term debt	0.0	400.0
Accounts payable	130.8	129.6
Accounts payable to related parties	42.6	48.8
Other	81.4	81.0
Current liabilities	585.8	869.9
Long-term liabilities
Long-term debt	1,690.6	1,244.8
Deferred income taxes	782.2	682.7
Deferred ITCs	74.8	41.3
Regulatory liabilities	735.5	772.6
Environmental remediation liabilities	95.0	88.3
Other	128.8	117.6
Long-term liabilities	3,506.9	2,947.3
Commitments and contingencies (Note 21)
Common shareholder's equity
Common stock – $4 par value; 32,000,000 shares authorized; 23,896,962 shares issued and outstanding	95.6	95.6
Additional paid in capital	1,491.5	1,436.4
Retained earnings	555.9	584.7
Common shareholder's equity	2,143.0	2,116.7
Total liabilities and equity	$ 6,235.7	$ 5,933.9