Employee Benefits - Employee Benefit Plan Status (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Plan Assets at Fair Value	$ 1,200.8	$ 1,176.8
Supplemental Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	94.1	97.4
Projected Benefit Obligation	109.2	113.6	$ 147.7
Plan Assets at Fair Value	0.0	0.0
Funded Status at end of year	$ (109.2)	$ (113.6)
Weighted-Average Assumptions:
Discount Rates	4.95%	5.15%
Rate of Increase in Compensation Level	5.56%	5.56%
U.S. | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	$ 1,015.6	$ 963.3
Projected Benefit Obligation	1,151.7	1,077.7	1,401.3
Plan Assets at Fair Value	1,200.8	1,176.8	1,708.9
Funded Status at end of year	$ 49.1	$ 99.1
Weighted-Average Assumptions:
Discount Rates	5.03%	5.22%
Rate of Increase in Compensation Level	5.56%	5.56%
Expected Long-Term Rate of Return on Assets	7.25%	7.25%
Non U.S. Plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	$ 143.7	$ 126.2
Projected Benefit Obligation	148.6	129.0	210.1
Plan Assets at Fair Value	148.7	134.5	$ 198.7
Funded Status at end of year	$ 0.1	$ 5.5
Weighted-Average Assumptions:
Discount Rates	3.12%	3.76%
Rate of Increase in Compensation Level	1.75%	1.75%
Expected Long-Term Rate of Return on Assets	3.90%	3.99%