Income Tax Expense	9 Months Ended
Income Tax Expense	Sep. 28, 2013
Income Tax Expense
Income Tax Expense	Note 11. Income Tax Expense Income tax expense equated to an effective income tax rate of 32.4% and 27.5% for the three and nine months ended September 28, 2013, respectively, compared with the U.S. federal statutory income tax rate of 35%. In the first nine months of 2013, the difference between the effective income tax rate and the statutory income tax rate was primarily due to benefits from income attributable to international operations in countries with lower tax rates and a favorable impact of four percentage points, resulting from the retroactive reinstatement and extension of the Federal Research and Development Tax Credit as part of the American Taxpayer Relief Act of 2012 enacted on January 2, 2013. The difference between the effective income tax rate and the federal statutory income tax rate for the three months ended September 28, 2013 was not significant. For the three and nine months ended September 29, 2012, the difference between the effective income tax rate and the federal statutory income tax rate was not significant.

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.

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