Income Taxes (Schedule Of Components Of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current
Federal	$ 0.4	$ (0.1)	$ 0.2
State	7.3	6.0	11.7
Total Current	7.7	5.9	11.9
Deferred
Federal	181.0	99.2	(0.4)
State	(23.0)	13.8	(27.4)
Total Deferred	158.0	113.0	(27.8)
Deferred Investment Credits	(1.1)	(1.1)	(1.2)
Income Taxes	$ 164.6	$ 117.8	$ (17.1)

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

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