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Income Taxes
3 Months Ended
Mar. 21, 2015
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes
 
Quarter ended
 
2015
 
2014
Income tax provision
$
111


$
139

Effective tax rate
23.4
%
 
25.9
%


Our effective tax rate was lower than the U.S. federal statutory rate of 35% primarily due to the majority of our income being earned outside the U.S. where tax rates are generally lower than the U.S. rate.

Our first quarter effective tax rate was lower than the prior year primarily due to a reduction in the cost of repatriating expected current year foreign earnings, partially offset by lapping the favorable impact of tax law changes in certain jurisdictions in the prior year.