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Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our effective tax rate was 20 percent for the three-month period ended March 31, 2018. Our tax rate was lower than our 2018 statutory tax rate of 21 percent due primarily to a seven percent decrease from an income tax benefit on stock- based compensation, partially offset by a four percent increase from U.S. and foreign taxes on foreign earnings and a two percent increase from state and local taxes, net of U.S. Federal tax benefit. Our effective tax rate was 30 percent for the three-month period ended March 31, 2017. Our tax rate was lower than our 2017 statutory tax rate of 35 percent due primarily to a three percent decrease from an income tax benefit on stock-based compensation and a two percent decrease from a state income tax benefit on uncertain tax positions resulting from the expiration of applicable statutes of limitation.

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- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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