Employee Benefits (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	$ 4.4	$ 8.1
Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan		6
Contribution to other postretirement plans	1.3	2.6
Non-Qualified U.S. Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to the plans	1.0	2.0
Minimum [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	17	17
Minimum [Member] | Qualified U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	15	15
Maximum [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	20	20
Maximum [Member] | Qualified U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to the plan	$ 20	$ 20