Other Accrued Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Accrued Liabilities [Line Items]
Payrolls and commissions	$ 109.3	$ 103.9
Accrued vacations	60.8us-gaap_AccruedVacationCurrent	67.2us-gaap_AccruedVacationCurrent
Income taxes	58.3us-gaap_AccruedIncomeTaxesCurrent	40.9us-gaap_AccruedIncomeTaxesCurrent
Taxes other than income taxes	53.8	62.4
Postretirement	22.6	25.1
Accrued interest	4.9us-gaap_InterestPayableCurrent	4.9us-gaap_InterestPayableCurrent
Other	75.4us-gaap_OtherAccruedLiabilitiesCurrent	71.3us-gaap_OtherAccruedLiabilitiesCurrent
Total other accrued liabilities	$ 385.1us-gaap_OtherLiabilitiesCurrent	$ 375.7us-gaap_OtherLiabilitiesCurrent

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying value as of the balance sheet date of obligations incurred and payable for unused vacation time owed to employees based on the entity's vacation benefit given to its employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

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For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

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