Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Reconciliation of Plan Asset Measured Using Level 3 Inputs (Detail) (USD $) In Millions, unless otherwise specified							12 Months Ended
	Dec. 31, 2012 U.S. pension plans [Member]	Dec. 31, 2011 U.S. pension plans [Member]	Dec. 31, 2010 U.S. pension plans [Member]	Dec. 31, 2012 Non-U.S. pension plans [Member]	Dec. 31, 2011 Non-U.S. pension plans [Member]	Dec. 31, 2010 Non-U.S. pension plans [Member]	Dec. 31, 2012 Level 3 [Member] U.S. pension plans [Member]	Dec. 31, 2012 Level 3 [Member] Non-U.S. pension plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets at beginning of period	$ 177.6	$ 171.2	$ 40.8	$ 805.6	$ 719.6	$ 218.3	$ 5.7	$ 46.3
Gains on assets sold during year							1.0
Gains (losses) on assets still held at end of year							(0.2)	5.3
Purchases, sales, issuance and settlements							(0.2)	1.3
Transfers into Level 3, net								30.5
Fair value of plan assets at end of period	$ 177.6	$ 171.2	$ 40.8	$ 805.6	$ 719.6	$ 218.3	$ 6.3	$ 83.4