Discontinued Operations and Assets and Liabilities Held for Sale (Assets and Liabilities Held For Sale) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Held for sale cash and cash equivalents	$ 0.0	$ 0.7	$ 0.0
Held-for-sale
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract]
Inventories	0.0	2.6
Property, Plant & Equipment (net)	2.8	9.2
Held for sale cash and cash equivalents	0.0	0.7
Other assets	0.0	1.4
Held for sale assets	2.8	13.9
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract]
Accounts payable	0.0	0.5
Other liabilities	0.0	1.8
Held for sale liabilities	$ 0.0	$ 2.3