Employee Benefit Plans Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan | UNITED STATES
Defined Benefit Plans and Other Postretirement Benefit Plans
Service Cost	$ 9.2	$ 9.2	$ 7.7
Interest Cost	82.9	87.9	67.2
Expected Return on Plan Assets	(91.3)	(92.0)	(105.9)
Amortization of Net Actuarial Loss (Gain)	14.6	15.2	16.3
Amortization of Prior Service Cost (Credit)	0.1	0.0	0.0
Total Net Periodic Benefit Cost (Credit)	15.5	20.3	(14.7)
Pension Plan | Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans
Service Cost	0.0	0.0	0.0
Interest Cost	7.6	7.7	5.0
Expected Return on Plan Assets	(8.4)	(8.5)	(10.9)
Amortization of Net Actuarial Loss (Gain)	2.9	2.5	0.4
Amortization of Prior Service Cost (Credit)	0.0	0.0	0.0
Total Net Periodic Benefit Cost (Credit)	2.1	1.7	(5.5)
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Service Cost	0.0	0.0	0.0
Interest Cost	4.0	4.5	3.0
Expected Return on Plan Assets	(0.4)	(0.5)	(0.5)
Amortization of Net Actuarial Loss (Gain)	(1.1)	(10.5)	(1.0)
Amortization of Prior Service Cost (Credit)	(0.2)	(0.2)	(0.2)
Total Net Periodic Benefit Cost (Credit)	$ 2.3	$ (6.7)	$ 1.3