Restructuring - Summary of Liabilities Recognized Related to Restructuring Plan (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2021
2021 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	$ 38.6
Expenses	18.2
Cash payments	(14.7)
Foreign currency exchange rate changes	0.6
Ending Balance	42.7
Expense incurred since the start of the Restructuring Plan	150.0
Expense estimated to be recognized for the Restructuring Plan	220.0	$ 220.0
2021 Restructuring Plan [Member] | Employee Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	10.5
Expenses	2.4
Cash payments	(2.7)
Foreign currency exchange rate changes	0.1
Ending Balance	10.3
Expense incurred since the start of the Restructuring Plan	55.5
Expense estimated to be recognized for the Restructuring Plan	70.0
2021 Restructuring Plan [Member] | Contract Termination [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	25.0
Expenses	14.3
Cash payments	(10.4)
Foreign currency exchange rate changes	0.5
Ending Balance	29.4
Expense incurred since the start of the Restructuring Plan	66.1
Expense estimated to be recognized for the Restructuring Plan	100.0
2021 Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	3.1
Expenses	1.5
Cash payments	(1.6)
Foreign currency exchange rate changes
Ending Balance	3.0
Expense incurred since the start of the Restructuring Plan	28.4
Expense estimated to be recognized for the Restructuring Plan	50.0
2019 Restructuring Plan [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	44.3
Expenses	6.1
Cash payments	(10.6)
Foreign currency exchange rate changes	0.1
Ending Balance	39.9
Expense incurred since the start of the Restructuring Plan	284.0
Expense estimated to be recognized for the Restructuring Plan	375.0
2019 Restructuring Plan [Member] | Employee Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	28.9
Cash payments	(2.4)
Ending Balance	26.5
Expense incurred since the start of the Restructuring Plan	108.3
Expense estimated to be recognized for the Restructuring Plan	160.0
2019 Restructuring Plan [Member] | Contract Termination [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	9.0
Cash payments	(1.0)
Ending Balance	8.0
Expense incurred since the start of the Restructuring Plan	35.0
Expense estimated to be recognized for the Restructuring Plan	35.0
2019 Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Beginning Balance	6.4
Expenses	6.1
Cash payments	(7.2)
Foreign currency exchange rate changes	0.1
Ending Balance	5.4
Expense incurred since the start of the Restructuring Plan	140.7
Expense estimated to be recognized for the Restructuring Plan	$ 180.0