Income Taxes	9 Months Ended
Income Taxes	Sep. 25, 2020
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 7. INCOME TAXES Our effective tax rate for the three and nine months ended September 25, 2020 was 20.9% and 29.0%, respectively, as compared to 23.2% and 23.3% for the three and nine months ended September 27, 2019, respectively. The year-over-year decrease in the effective tax rate for the three months ended September 25, 2020 as compared to the comparable period in the prior year was primarily due to the favorable impact of a higher mix of income in jurisdictions with lower tax rates than the U.S. federal statutory rate of 21%. The year-over-year increase in the effective tax rate for the nine months ended September 25, 2020 as compared to the comparable period in the prior year was primarily due to a non-deductible goodwill impairment recognized in Q1. This was partially offset by favorable impacts of a higher mix of income in jurisdictions with lower tax rates than the U.S. federal statutory rate of 21% and increases in favorable impacts of certain federal and international tax benefits. Our effective tax rate for both periods in 2020 and 2019 differs from the U.S. federal statutory rate of 21% due primarily to the impact of the Tax Cuts and Jobs Act (“TCJA”), certain U.S. federal permanent differences, the impact of credits and deductions provided by law, and current year earnings outside the United States that are indefinitely reinvested and taxed at rates lower than the U.S. federal statutory rate. Specific to the nine months ended September 25, 2020, our effective tax rate also differs from the U.S. federal statutory rate of 21% due to a non-deductible goodwill impairment in Q1.

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.