Revenue Recognition Net Contract Assets (Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Contract with Customer, Liability, Revenue Recognized	$ 3.6	$ 7.2
Contract with Customer, Liability, Current	10.2	5.5
Contract with Customer, Liability, Current, Net, Change in Timeframe, Performance Obligation Satisfied Revenue Recognized	(4.7)
Contract with Customer, Liability, Noncurrent	5.5	5.6
Contract with Customer, Liability, Noncurrent, Net, Change in Timeframe, Performance Obligation Satisfied Revenue Recognized	0.1
Contract with Customer, Asset (Liability), Net	(15.7)	$ (11.1)
Contract with Customer, Asset (Liability), Change in Timeframe, Performance Obligation Satisfied Revenue Recognized	$ (4.6)