Goodwill and Other Intangibles (Other Intangible Assets and Capitalized Software) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Other Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 186.1	$ 206.4
Less: Accumulated Amortization	112.2	114.8
Net Book Value	73.9	91.6
Computer Software
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,434.1	2,982.1
Less: Accumulated Amortization	1,614.8	1,299.5
Net Book Value	$ 1,819.3	$ 1,682.6