CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net income	$ 33.6	$ 24.0
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	38.9	34.3
Deferred income taxes	(9.5)	(0.2)
Allowance for equity funds used during construction	(1.1)	(0.6)
Changes in operating assets and liabilities:
Accounts receivable	(6.8)	(12.6)
Accrued unbilled revenues	10.5	10.6
Inventories	3.1	4.7
Other current assets	4.6	10.7
Accounts payable	(12.9)	(8.8)
Net regulatory assets and liabilities	4.3	3.7
Other current liabilities	(2.7)	6.1
Pension and other employee benefit obligations	(6.8)	(7.4)
Other, net	0.5	0.1
Net cash provided by operating activities	55.7	64.6
Investing activities
Utility capital/construction expenditures	(63.3)	(50.4)
Other, net	0.0	(0.1)
Net cash used in investing activities	(63.3)	(50.5)
Financing activities
Proceeds from (repayments of) short-term borrowings, net	11.0	(2.0)
Repayments of long-term debt	0.0	(0.1)
Capital contributions from parent	12.0	14.9
Dividends paid to parent	(14.8)	(27.4)
Other, net	(0.1)	0.0
Net cash provided by (used in) financing activities	8.1	(14.6)
Net change in cash, cash equivalents and restricted cash	0.5	(0.5)
Cash, cash equivalents and restricted cash at beginning of period	1.3	2.2
Cash, cash equivalents and restricted cash at end of period	1.8	1.7
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(10.5)	(10.4)
Cash (paid) received for income taxes, net	(1.7)	6.5
Supplemental disclosure of non-cash investing transactions:
Accrued property, plant and equipment additions	16.4	9.0
Inventory transfer additions in property, plant and equipment	0.6	0.7
Allowance for equity funds used during construction in property, plant and equipment	$ 1.1	$ 0.6