STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities
Net income	$ 54.1	$ 33.1
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	53.8	48.5
Demand side management program amortization	0.0	0.4
Deferred income taxes	11.0	0.8
Allowance for equity funds used during construction	(10.3)	(3.4)
Other, net	0.3	0.2
Changes in operating assets and liabilities:
Accounts receivable	(1.3)	(11.4)
Accrued unbilled revenues	0.2	12.1
Inventories	(6.8)	6.0
Prepayments and other	(5.4)	1.4
Accounts payable	(9.3)	(12.0)
Net regulatory assets and liabilities	(1.2)	27.0
Other current liabilities	(16.7)	(4.9)
Pension and other employee benefit obligations	(15.9)	(7.9)
Net cash provided by operating activities	52.5	89.9
Investing activities
Utility capital/construction expenditures	(179.6)	(145.5)
Allowance for equity funds used during construction	10.3	3.4
Investments in utility money pool arrangement	0.0	46.0
Repayments from utility money pool arrangement	0.0	111.0
Net cash used in investing activities	(179.6)	(80.5)
Financing activities
Proceeds from short-term borrowings, net	95.0	10.0
Borrowings under utility money pool arrangement	100.0	1.0
Repayments under utility money pool arrangement	(62.0)	(1.0)
Capital contributions from parent	5.8	0.4
Repayment of long-term debt	(0.1)	0.0
Dividends paid to parent	(55.1)	(26.8)
Net cash provided by (used in) financing activities	83.6	(16.4)
Net change in cash and cash equivalents	(43.5)	(7.0)
Cash and cash equivalents at beginning of period	44.0	10.9
Cash and cash equivalents at end of period	0.5	3.9
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(18.9)	(21.2)
Cash paid for income taxes, net	(4.9)	(4.0)
Supplemental disclosure of non-cash investing and financing transactions:
Property, plant and equipment additions in accounts payable	68.5	36.7
Inventory transfers to plant, property and equipment	6.4	4.8
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 548.3	$ 0.0