Investments Low Income Housing Tax Credits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Low Income Housing Tax Credits [Abstract]
Affordable Housing Tax Credits	$ 1.9	$ 5.1	$ 6.0	$ 15.9
Amortization of Affordable Housing Tax Credit Investments	(1.4)	(4.0)	(4.4)	(11.4)
Tax Benefits from Low Income Housing Investments	$ 0.5	$ 1.1	$ 1.6	$ 4.5