Components of Company's Net Periodic Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
U.S. Plan
Defined Benefit plan Net periodic benefit cost
Service Cost	$ 8.2	$ 7.5	$ 24.6	$ 22.7
Interest Cost	11.1	10.5	33.3	31.6
Expected Return on Plan Assets	(24.4)	(23.1)	(73.3)	(69.2)
Amortization
Net Actuarial (Gain) Loss	(0.1)	10.3	(0.3)	30.9
Prior Service Cost	5.4	(0.1)	16.1	(0.3)
Net Periodic Pension Expense (Benefit)	0.2	5.1	0.4	15.7
Non U.S. Plans
Defined Benefit plan Net periodic benefit cost
Interest Cost	1.8	1.6	5.3	4.9
Expected Return on Plan Assets	(1.8)	(1.5)	(5.3)	(4.6)
Amortization
Net Actuarial (Gain) Loss	(0.4)	0.2	(1.2)	0.7
Net Periodic Pension Expense (Benefit)	(0.4)	0.3	(1.2)	1.0
Supplemental Plan
Defined Benefit plan Net periodic benefit cost
Service Cost	0.8	0.4	2.3	1.2
Interest Cost	1.2	1.1	3.6	3.3
Amortization
Net Actuarial (Gain) Loss	0.2	1.7	0.4	5.1
Prior Service Cost	1.5	0.2	4.4	0.4
Net Periodic Pension Expense (Benefit)	3.7	3.4	10.7	10.0
Other Postretirement Plan
Defined Benefit plan Net periodic benefit cost
Service Cost			0.1	0.1
Interest Cost	0.4	0.3	1.1	0.9
Amortization
Net Actuarial (Gain) Loss		(0.3)		(0.9)
Prior Service Cost	(0.1)	(0.7)	(0.4)	(2.2)
Net Periodic Pension Expense (Benefit)	$ 0.3	$ (0.7)	$ 0.8	$ (2.1)