Employee Benefits - Net Periodic Pension Expense (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Weighted-Average Assumptions:
Expected Long-Term Rate of Return on Assets						7.25%
Supplemental Plan
Defined Benefit plan Net periodic benefit cost
Service Cost						$ 4.7	$ 4.8	$ 5.6
Interest Cost						5.0	5.3	3.9
Expected Return on Plan Assets						0.0	0.0	0.0
Amortization:
Net Actuarial Loss						5.1	5.3	7.4
Prior Service (Credit) Cost						0.0	0.0	0.0
Net Periodic Pension Expense						14.8	15.4	16.9
Settlement Expense						0.0	0.0	0.0
Total Pension Expense						$ 14.8	$ 15.4	$ 16.9
Weighted-Average Assumptions:
Discount Rates						4.95%	5.15%	2.80%
Rate of Increase in Compensation Level						5.56%	5.56%	4.97%
U.S. | Pension Plans
Defined Benefit plan Net periodic benefit cost
Service Cost						$ 53.6	$ 46.0	$ 48.0
Interest Cost						55.6	53.9	46.3
Expected Return on Plan Assets						(115.7)	(100.9)	(85.7)
Amortization:
Net Actuarial Loss						7.8	1.5	11.4
Prior Service (Credit) Cost						0.0	0.0	(0.1)
Net Periodic Pension Expense						1.3	0.5	19.9
Settlement Expense						0.0	0.0	44.1
Total Pension Expense						$ 1.3	$ 0.5	$ 64.0
Weighted-Average Assumptions:
Discount Rates			3.03%	4.81%	5.49%	5.03%	5.22%	5.22%
Rate of Increase in Compensation Level						5.56%	5.56%	4.97%
Expected Long-Term Rate of Return on Assets	6.50%	6.00%	5.25%			7.25%	7.25%
Non U.S. Plans | Pension Plans
Defined Benefit plan Net periodic benefit cost
Service Cost						$ 1.9	$ 1.6	$ 1.7
Interest Cost						4.5	4.8	2.5
Expected Return on Plan Assets						(6.7)	(6.7)	(3.2)
Amortization:
Net Actuarial Loss						0.1	(0.4)	0.6
Prior Service (Credit) Cost						(0.1)	0.0	0.0
Net Periodic Pension Expense						(0.3)	(0.7)	1.6
Settlement Expense						0.2	0.0	0.8
Total Pension Expense						$ (0.1)	$ (0.7)	$ 2.4
Weighted-Average Assumptions:
Discount Rates						3.12%	3.76%	1.34%
Rate of Increase in Compensation Level						1.75%	1.75%	1.50%
Expected Long-Term Rate of Return on Assets						3.90%	3.99%	1.79%