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Income Taxes | 6 Months Ended
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Jun. 30, 2013
Income Tax Disclosure [Abstract] |
Income Taxes | 11. Income Taxes The Company is under continuous exam ination by the Internal Revenue Service (IRS) and tax authorities in other countries and states in which the Company has si gnificant business operations. The tax years under examination and open for exa mination vary by jurisdiction. The IRS has completed its field examination of the Company's federal tax returns for years through 200 7; however, r efund claims for certain years continue to be reviewed by the IRS. In addition, t he Company is currently under examinati on by the IRS for the years 2008 through 2011. The Company believes it is reasonably possible that its unrecognized tax benefits could decrease within the next 12 months by as much as $629 m illion principally as a result of poten tial resolutions of prior year s' tax items with various taxi ng authorities. The prior year s' tax items include unrecognized tax benefits relating to the deductibility of certain expenses or losses and the attribution of taxable income to a particular jurisdiction or jurisdictions. Of the $629 m illion of unrecognize d tax ben efits, approximately $517 million relates to amounts that if recognized would be recorded to shareholders' equity and would not impact the effective tax rate. With resp ect to the remaining $112 million, it is not possible to quantify the impact that the decrease could have on the effective tax rate and net income due to the inherent complexities and the number of tax years open for examination in multiple jurisdictions. Resolution of the prior year s' items that comprise this remaining amount could have an impact on the effective tax rate and on net income, either favorably (principally as a result of settlements that are less than the liability for unrecognized tax benefits) or unfavorably (if such settlements exceed the liability for unrecognized tax benefits). The effective tax rate was 29.6 percent and 31.2 percent for the three and six months ended June 30, 2013, respectively, and 28.7 percent and 28.9 percent for the three and six months ended June 30, 2012, respectively. The tax rate for the three and six months ended June 30, 2013 reflects the resolution of certain prior years' tax items, while the tax rate for the three and six months ended June 30, 2012 reflects the realization o f certain foreign tax credits. T he tax rates for all periods reflect the level of pretax income in relation to a generally consistent level of recurring permanent tax benefits and geographic mix of business.

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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 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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