Performance Period For Measuring Fair Value Of Outstanding Awards.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Expected To Vest Outstanding Number

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend

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- Definition

Number of shares initially available for awards under this Stock Option plan.

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- Definition

Share Based Compensation Arrangements By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term.

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No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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-Glossary Financing Activities

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cash paid related to share-based compensation liabilities.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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- Definition

As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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Long-Term Incentive Employee Compensation - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 04, 2014	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares initially available for awards under this Stock Option plan	4.6
Share available for future grant under stock option	39.9
Share-based compensation, vesting period	3 years
Intrinsic value of options exercised	$ 22,500,000	$ 26,300,000	$ 24,700,000
Cash received from the exercise of stock options	15,100,000	34,800,000	58,000,000
Tax benefit realized from stock option exercises and restricted stock lapses	15,100,000	13,400,000	11,000,000
Excess Tax benefit from stock activity	10,400,000	8,700,000	6,400,000
Total number of stock option expected to vest	1.8
Weighted average price of stock options expected to vest	$ 23.94
Aggregate intrinsic value of stock options expected to vest	30,700,000
Weighted average remaining contractual life stock option expected to vest	6 years 8 months 6 days
Dividend yield	1.00%	1.50%	1.60%
Share Price	$ 40.46us-gaap_SharePrice			$ 43.52us-gaap_SharePrice
Options Outstanding Number	1.9	2.7	4.3		8.0
Performance period for measuring fair value of outstanding awards	3 years
Equity Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options and restricted stock	18,500,000
Unrecognized compensation cost weighted average amortization period (years)	1 year 10 months 24 days
Liability Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options and restricted stock	2,300,000
Unrecognized compensation cost weighted average amortization period (years)	1 year 9 months 15 days
Options granted between 2004 and 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	3 years
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares expected to vest	0.7
PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares expected to vest	0.3
TSR Plan Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend	$ 0.44
Cash payments to settle awards		0	0
Estimated equity award liability	$ 5,400,000
ROIC Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	1.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend	$ 0.44
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual period	7 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual period	10 years