Schedule - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for Doubtful Accounts [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 75.1	$ 78.4	$ 60.1
Additions Charged (Credited) to Expense	29.3	5.1	22.5
Deductions / Other Additions to Reserve	(7.1)	(5.1)	(7.6)
Effects of Foreign Currency	(4.1)	(3.3)	3.4
Balance at End of Period	93.2	75.1	78.4
Deferred Tax Asset Valuation Allowances [Member]
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	464.6	463.2	460.1
Additions Charged (Credited) to Expense	(3.9)	(3.1)	3.0
Deductions / Other Additions to Reserve	(7.9)	3.7	2.0
Effects of Foreign Currency	(3.4)	0.8	(1.9)
Balance at End of Period	$ 449.4	$ 464.6	$ 463.2