Employee Benefits - Change in Projected Benefit Obligation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Actuarial Loss (Gain)	$ (365.5)	$ (31.5)
Supplemental Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning Balance	147.7	162.3
Service Cost	5.6	5.3	$ 4.6
Interest Cost	3.9	3.7	4.8
Employee Contributions	0.0	0.0
Plan Amendment	0.0	0.0
Actuarial Loss (Gain)	(20.0)	(2.0)
Settlements	0.0	0.0
Benefits Paid	(23.6)	(21.6)
Foreign Exchange Rate Changes	0.0	0.0
Ending Balance	113.6	147.7	162.3
U.S. | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning Balance	1,401.3	1,470.6
Service Cost	48.0	52.3	47.4
Interest Cost	46.3	40.4	43.3
Employee Contributions	0.0	0.0
Plan Amendment	0.0	0.0
Actuarial Loss (Gain)	(281.2)	(19.1)
Settlements	(125.0)	(132.1)
Benefits Paid	(11.7)	(10.8)
Foreign Exchange Rate Changes	0.0	0.0
Ending Balance	1,077.7	1,401.3	1,470.6
Non U.S. Plans | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning Balance	210.1	236.1
Service Cost	1.7	2.2	1.9
Interest Cost	2.5	2.2	2.9
Employee Contributions	0.7	0.6
Plan Amendment	(0.3)	(1.4)
Actuarial Loss (Gain)	(64.3)	(10.4)
Settlements	(0.9)	(9.4)
Benefits Paid	(4.6)	(5.5)
Foreign Exchange Rate Changes	(15.9)	(4.3)
Ending Balance	$ 129.0	$ 210.1	$ 236.1