Other Current and Non-Current Liabilities - Components of Other Current and Other Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other current liabilities:
Accrued salaries, wages and related costs	$ 326.7	$ 300.6
Accrued operating expenses	295.3	303.3
Income taxes payable	38.1	35.6
Accrued customer volume rebates	185.4	176.5
Accrued interest	46.0	67.4
Accrued employee benefit liability	8.6	7.0
Total	900.1	890.4	[1]
Other non-current liabilities:
Accrued employee benefit liability	347.5	262.0
Other postretirement liability	77.4	70.1
Other various liabilities	279.1	315.8
Total	$ 704.0	$ 647.9	[1]

[1] Certain amounts have been revised to reflect the retrospective application of the Company’s change in inventory costing method for certain U.S. inventories to the FIFO method from the LIFO method. Refer to Note 2, “Summary of Significant Accounting Policies - Inventories,” of the notes to consolidated financial statements for further details surrounding this accounting policy change.