Summary of Restructuring Reserve Activity (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	$ 84.1
Additions, net	37.4
Usage	(29.3)
Currency	1.6
Reserve, Ending Balance	93.8
2012 Actions
Restructuring Cost and Reserve [Line Items]
Additions, net	37.3
Usage	(8.1)
Currency	0.8
Reserve, Ending Balance	30.0
2012 Actions | Severance and related costs
Restructuring Cost and Reserve [Line Items]
Additions, net	33.5
Usage	(7.1)
Currency	0.7
Reserve, Ending Balance	27.1
2012 Actions | Facility closures
Restructuring Cost and Reserve [Line Items]
Additions, net	3.8
Usage	(1.0)
Currency	0.1
Reserve, Ending Balance	2.9
Pre-2012 Actions
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	84.1
Additions, net	0.1
Usage	(21.2)
Currency	0.8
Reserve, Ending Balance	63.8
Pre-2012 Actions | Severance and related costs
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	82.4
Additions, net	0.1
Usage	(19.6)
Currency	0.7
Reserve, Ending Balance	63.6
Pre-2012 Actions | Facility closures
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	1.7
Usage	(1.6)
Currency	0.1
Reserve, Ending Balance	$ 0.2