Goodwill and Other Identifiable Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 3,252.6
Purchase Accounting Adjustments	0.5
Foreign currency translation/other	12.4
Ending Balance	3,265.5
Consumer Solutions
Goodwill [Roll Forward]
Beginning Balance	1,398.1
Purchase Accounting Adjustments	0.5
Foreign currency translation/other	1.5
Ending Balance	1,400.1
Industrial & Flow Technologies
Goodwill [Roll Forward]
Beginning Balance	747.6
Purchase Accounting Adjustments	0.0
Foreign currency translation/other	10.9
Ending Balance	758.5
Pool
Goodwill [Roll Forward]
Beginning Balance	1,106.9
Purchase Accounting Adjustments	0.0
Foreign currency translation/other	0.0
Ending Balance	$ 1,106.9