Amount Of Gain Loss Reclassified From Accumulated Other Comprehensive Income Amount Net Of Tax

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Liability for common stock.

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Payment due to exercise of common stock.

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Percentage Of Reduction In Amount Earned On Free Cash Flow Performance

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Performance Stock Unit Award Earned Payment Period

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Performance Stock Unit Award Period

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Stock Incentive Plan Description

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- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Date the declared dividend will be paid, in CCYY-MM-DD format.

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Date the dividend to be paid was declared, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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-Glossary Financing Activities

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Number of non-vested options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stockholders' Equity - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended		3 Months Ended
	Mar. 21, 2014	Feb. 18, 2014	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividends declared, date		Feb. 18, 2014
Dividends declared per common share		$ 0.13
Dividends declared, payable date		Mar. 21, 2014
Dividends payable, date of record		Mar. 07, 2014
Dividends paid	$ 28.0		$ 28.4	$ 25.4
Share-based compensation expense			14.5	7.6
Unrecognized pension items			144.4		146.2
Reclassification of unrecognized pension items, net of taxes from accumulated other comprehensive income			2
Stock Appreciation Rights Expense [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outstanding SARs			0.8
Remaining unvested SARs			0.3
Weighted average remaining vesting life			1 year
Stock Appreciation Rights Expense [Member] \| Other Current Liabilities [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Liability for SARs			11
Stock Appreciation Rights Expense [Member] \| Other Non-current Liabilities [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Liability for SARs			9
Stock Appreciation Rights Expense [Member] \| General and Administrative Expense [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			1	18
Payments due to exercise SARs			14	17
Liability for SARs			20
Stock Appreciation Rights Expense [Member] \| Restructuring Charges [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			1
Payments due to exercise SARs			0
Stock Appreciation Rights Expense [Member] \| Restructuring Charges [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense			1	1
Performance Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
PSU awards performance period			3 years
Percentage of reduction in amount earned based on free cash flow performance			25.00%
Stock incentive plan description			To further balance the incentives, the amount earned based on free cash flow performance will be reduced by 25% if our relative TSR (as defined in the award) for the performance period is below a certain percentile of an approved peer group of companies.
PSUs earned payment period			2 years
Share-based compensation expense			$ 2.0