STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net income	$ 42.7	$ 54.1
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	59.7	53.8
Deferred income taxes	0.5	11.0
Allowance for equity funds used during construction	(5.9)	(10.3)
Gain (loss) on hedging and derivative transactions	(1.4)	0.0
Changes in operating assets and liabilities:
Accounts receivable	(2.4)	(1.3)
Increase (Decrease) in Accrued Unbilled Revenues	(11.7)	(0.2)
Inventories	(6.6)	(6.8)
Prepayments and other	(5.1)	(5.4)
Accounts payable	(1.4)	(9.3)
Net regulatory assets and liabilities	18.2	(1.2)
Other current liabilities	(14.9)	(16.7)
Pension and other employee benefit obligations	(15.0)	(15.9)
Other Operating Activities, Cash Flow Statement	1.1	0.3
Net cash provided by operating activities	81.2	52.5
Investing activities
Utility capital/construction expenditures	(192.5)	(179.6)
Investments in utility money pool arrangement	4.0	0.0
Repayments from utility money pool arrangement	4.0	0.0
Net cash used in investing activities	(192.5)	(179.6)
Financing activities
Proceeds from short-term borrowings, net	40.0	95.0
Borrowings under utility money pool arrangement	239.0	100.0
Repayments under utility money pool arrangement	(139.0)	(62.0)
Capital contributions from parent	31.4	5.8
Dividends paid to parent	(74.3)	(55.1)
Other, net	(0.4)	(0.1)
Net cash provided by financing activities	96.7	83.6
Net change in cash, cash equivalents and restricted cash	(14.6)	(43.5)
Cash, cash equivalents and restricted cash at beginning of period	16.2	44.0
Cash, cash equivalents and restricted cash at end of period	1.6	0.5
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(17.5)	(18.9)
Cash paid for income taxes, net	(2.1)	(4.9)
Supplemental disclosure of non-cash investing and financing transactions:
Property, plant and equipment additions in accounts payable	56.5	68.5
Inventory transfer additions in PPE	5.7	6.4
Operating lease right-of-use assets	0.0	548.3
Allowance for equity funds used during construction	$ 5.9	$ 10.3