Effective Tax Rate Reconciliation (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Rate Reconciliation [Line Items]
Statutory rate	35.00%	35.00%	35.00%
Tax that would result from use of the federal statutory rate	$ 189.9	$ 173.1	$ 146.4
State and local income tax, net of federal effect	19.0	12.1	15.2
Varying tax rates of foreign affiliates	(1.8)	(2.5)	(1.5)
Benefit from domestic manufacturing deduction	(11.6)	(8.3)	(8.5)
Resolution of tax contingencies	(3.2)	(3.7)	(4.1)
Valuation Allowances	0.6	14.3	0
Other	(0.2)	0	0.1
Recorded tax expense	$ 192.7	$ 185.0	$ 147.6
Effective tax rate	35.50%	37.40%	35.30%