Accounting Policies (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)	Oct. 23, 2022 USD ($)
Goodwill
Number of reporting units | item		7
Gross Balance
Balance at the beginning of the period		$ 777.9	$ 769.5
Acquired During the Period			8.4
Foreign Currency Translation and Other		8.3	10.1
Balance at the end of the period	$ 777.9		777.9
Accumulated Impairment Losses
Balance at the beginning of the period		(167.1)	(167.1)
Balance at the end of the period	(167.1)	(167.1)	(167.1)
Goodwill impairment charges		0.0	0.0
Goodwill	600.7	592.4	600.7	$ 581.2
Business combination
Net Goodwill	600.7	592.4	600.7	$ 581.2
Water quality
Gross Balance
Balance at the end of the period		0.0
Americas
Gross Balance
Balance at the beginning of the period		490.9	482.5
Acquired During the Period	8.4		8.4
Foreign Currency Translation and Other		0.6
Balance at the end of the period	490.9		490.9
Accumulated Impairment Losses
Balance at the beginning of the period		(24.5)	(24.5)
Balance at the end of the period	(24.5)	(24.5)	(24.5)
Goodwill	466.4	465.8	466.4
Business combination
Net Goodwill	$ 466.4	$ 465.8	$ 466.4