Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 754.4	$ 835.4
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	694.3	669.5
Amortization of nuclear fuel	47.7	35.7
Amortization of deferred refueling outage	18.8	18.8
Amortization of corporate-owned life insurance	18.3	18.5
Non-cash compensation	15.2	11.4
Net deferred income taxes and credits	54.6	98.6
Allowance for equity funds used during construction	(18.3)	(20.8)
Payments for asset retirement obligations	(9.4)	(10.0)
Equity in earnings of equity method investees, net of income taxes	(5.5)	(6.1)
Income from corporate-owned life insurance	(1.2)	(13.7)
Other	0.9	(4.5)
Changes in working capital items:
Accounts receivable	(127.8)	(39.6)
Accounts receivable pledged as collateral	(76.0)	(35.0)
Fuel inventory and supplies	(48.0)	(40.0)
Prepaid expenses and other current assets	16.1	(167.9)
Accounts payable	(142.6)	(206.8)
Accrued taxes	204.8	169.5
Other current liabilities	(43.2)	(14.1)
Changes in other assets	92.8	(308.7)
Changes in other liabilities	31.8	45.8
Cash Flows from Operating Activities	1,477.7	1,036.0
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,614.6)	(1,394.7)
Purchase of securities - trusts	(28.5)	(108.4)
Sale of securities - trusts	22.3	95.3
Investment in corporate-owned life insurance	(15.5)	(13.5)
Proceeds from investment in corporate-owned life insurance	3.4	76.3
Other investing activities	7.8	(4.1)
Cash Flows used in Investing Activities	(1,625.1)	(1,349.1)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	62.9	301.6
Proceeds from term loan facility	500.0	0.0
Collateralized short-term borrowings, net	76.0	35.0
Issuance of common stock	0.0	112.5
Proceeds from long-term debt	246.9	497.3
Retirements of long-term debt	(387.5)	(351.1)
Retirements of long-term debt of variable interest entities	0.0	(18.8)
Borrowings against cash surrender value of corporate-owned life insurance	52.4	53.1
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(1.2)	(62.1)
Cash dividends paid	(394.1)	(366.7)
Other financing activities	(9.5)	(7.3)
Cash Flows from Financing Activities	145.9	193.5
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(1.5)	(119.6)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	26.2	144.9
End of period	$ 24.7	$ 25.3