Other Liabilities - Components of Current and Other Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Other current liabilities:
Accrued salaries, wages and related costs	$ 264.8	$ 269.2
Accrued operating expenses	320.1	229.2
Income taxes payable	23.8	60.8
Accrued customer volume rebates	167.4	180.1
Accrued interest	63.4	65.6
Accrued employee benefit liability	9.7	9.8
Total	849.2	814.7
Other liabilities:
Accrued employee benefit liability	292.6	226.2
Other postretirement liability	77.3	68.9
Other various liabilities	276.1	271.9
Total	$ 646.0	$ 567.0