Pensions and Other Postretirement Benefits Net Periodic Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 48.8	$ 42.7	$ 36.5
Interest Cost	84.4	77.6	71.1
Expected Return on Plan Assets	(88.8)	(87.6)	(70.5)
Amortization of Net Actuarial Loss	45.9	31.9	29.8
Amortization of Prior Service Credit	(0.4)	(0.5)	(0.5)
Total	89.9	64.1	66.4
Pension Benefits, Non U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	4.2	4.8	4.9
Interest Cost	8.5	8.8	9.5
Expected Return on Plan Assets	(11.1)	(12.2)	(10.7)
Amortization of Net Actuarial Loss	0.5	0	2.4
Amortization of Prior Service Credit	0	0	0
Total	2.1	1.4	6.1
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	1.6	1.9	2.6
Interest Cost	9.6	10.0	10.8
Expected Return on Plan Assets	(0.7)	(0.7)	(0.6)
Amortization of Net Actuarial Loss	0	0	0
Amortization of Prior Service Credit	(2.6)	(2.6)	(2.6)
Total	$ 7.9	$ 8.6	$ 10.2