Income Tax Expense	6 Months Ended
Income Tax Expense	Jun. 28, 2014
Income Tax Expense
Income Tax Expense	Note 12. Income Tax Expense Income tax expense equated to an effective income tax rate of 31.0% and 30.7% in the second quarter and the first half of 2014, respectively, compared with the U.S. federal statutory income tax rate of 35.0%. In the second quarter and first half of 2014, the difference between the statutory and the effective income tax rate was primarily due to benefits from income attributable to international operations in countries with lower tax rates. Income tax expense equated to an effective income tax rate of 30.1% and 25.2% in the second quarter and first half of 2013, respectively, compared with the U.S. federal statutory income tax rate of 35.0%. In the second quarter of 2013, the difference between the statutory and the effective income tax rate was primarily due to benefits from income attributable to international operations in countries with lower tax rates. In the first half of 2013, the difference between the statutory and the effective 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 five 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, which primarily impacted the first quarter of 2013.

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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