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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net income	$ 855.2	$ 772.0
Reconciliation to cash provided by operating activities
Depreciation and amortization	628.1	593.5
Deferred income taxes and investment tax credits, net	34.4	444.4
Contributions and payments related to pension and OPEB plans	(13.8)	(115.4)
Equity income in transmission affiliates, net of distributions	(4.5)	(18.5)
Change in –
Accounts receivable and unbilled revenues	312.1	310.5
Materials, supplies, and inventories	(69.0)	(84.1)
Other current assets	112.7	56.8
Accounts payable	(71.2)	(111.2)
Other current liabilities	42.5	23.4
Other, net	181.7	(125.7)
Net cash provided by operating activities	2,008.2	1,745.7
Investing Activities
Capital expenditures	(1,490.5)	(1,309.2)
Acquisition of Bishop Hill III, net of restricted cash acquired of $4.5	(143.5)	0.0
Acquisition of Forward Wind Energy Center	(77.1)	0.0
Acquisition of Bluewater	0.0	(226.0)
Capital contributions to transmission affiliates	(43.7)	(63.3)
Proceeds from the sale of assets and businesses	10.9	22.7
Proceeds from the sale of investments held in rabbi trust	16.6	8.6
Other, net	7.3	1.4
Net cash used in investing activities	(1,720.0)	(1,565.8)
Financing Activities
Exercise of stock options	13.9	25.6
Purchase of common stock	(42.0)	(60.6)
Dividends paid on common stock	(523.0)	(492.4)
Issuance of long-term debt	600.0	210.0
Retirement of long-term debt	(694.4)	(26.9)
Change in short-term debt	343.7	133.3
Other, net	(4.8)	(3.1)
Net cash used in financing activities	(306.6)	(214.1)
Net change in cash, cash equivalents, and restricted cash	(18.4)	(34.2)
Cash, cash equivalents, and restricted cash at beginning of period	58.6	72.7
Cash, cash equivalents, and restricted cash at end of period	$ 40.2	$ 38.5

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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