Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities:
Net income	$ 156.2	$ 143.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	132.5	126.4
Deferred financing cost amortization	5.5	4.9
Stock compensation	5.4	4.3
Deferred income taxes	36.6	9.2
Employee benefit plans	5.6	5.9
Other adjustments, net	(4.0)	(6.7)
Change in certain operating assets and liabilities:
Materials, supplies and fuel	29.0	73.0
Accounts receivable and other current assets	117.1	266.8
Accounts payable and other current liabilities	(77.4)	(201.4)
Regulatory assets	69.8	186.7
Other operating activities, net	(12.3)	(7.9)
Net cash provided by operating activities	464.0	605.1
Investing activities:
Property, plant and equipment additions	(342.4)	(261.7)
Other investing activities	1.7	16.3
Net cash (used in) investing activities	(340.7)	(245.4)
Financing activities:
Dividends paid on common stock	(89.3)	(83.1)
Common stock issued	73.0	54.7
Net borrowings (payments) of Revolving Credit Facility and CP Program	0.0	(535.6)
Long-term debt - issuance	450.0	350.0
Distributions to non-controlling interests	(10.0)	(9.0)
Other financing activities	(8.3)	(5.1)
Net cash provided by (used in) financing activities	415.4	(228.1)
Net change in cash, restricted cash and cash equivalents	538.7	131.6
Cash, restricted cash and cash equivalents beginning of period	93.0	27.0
Cash, restricted cash and cash equivalents end of period	631.7	158.6
Supplemental cash flow information:
Interest (net of amounts capitalized)	(89.5)	(75.5)
Income taxes, net of transferred tax credits (Note 11)	14.7	0.0
Accrued property, plant and equipment purchases at June 30,	$ 73.0	$ 50.1