Income Taxes	6 Months Ended
Jun. 27, 2014
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes The Company and its subsidiaries file income tax returns in the U.S. Federal jurisdiction and various state and foreign jurisdictions. As of June 27, 2014, the statutes of limitations for the Company’s U.S. Federal income tax returns for the years ended December 31, 2010 through 2012 were open. The U.S. Internal Revenue Service (IRS) commenced audits of the Company’s U.S. Federal income tax returns for 2011 and 2010. The Company cannot predict the outcome of the audits at this time. The effective tax rate for the first half period ended June 27, 2014 increased to 30.8% from 29.6% for the first half ended June 28, 2013. The increase was primarily due to a tax benefit in the first half period ended June 28, 2013 of $15 million related to the retroactive reinstatement in January 2013 of the U.S. Federal research and experimentation tax credit for 2012 and 2013, which did not recur in the first half period ended June 27, 2014. As of June 27, 2014, the Company anticipates that unrecognized tax benefits will decrease by approximately $20 million over the next 12 months due to the potential resolution of unrecognized tax benefits involving several jurisdictions and tax periods. The actual amount of the decrease over the next 12 months could vary significantly depending on the ultimate timing and nature of any settlement. Non-current income taxes payable include accrued potential interest of $13 million ($8 million after income taxes) at June 27, 2014 and $11 million ($7 million after income taxes) at December 31, 2013, and potential penalties of $7 million at June 27, 2014 and $8 million at December 31, 2013.

Income Taxes

6 Months Ended

Jun. 27, 2014

11. Income Taxes

The Company and its subsidiaries file income tax returns in the U.S. Federal jurisdiction and various state and foreign jurisdictions. As of June 27, 2014, the statutes of limitations for the Company’s U.S. Federal income tax returns for the years ended December 31, 2010 through 2012 were open. The U.S. Internal Revenue Service (IRS) commenced audits of the Company’s U.S. Federal income tax returns for 2011 and 2010. The Company cannot predict the outcome of the audits at this time.

The effective tax rate for the first half period ended June 27, 2014 increased to 30.8% from 29.6% for the first half ended June 28, 2013. The increase was primarily due to a tax benefit in the first half period ended June 28, 2013 of $15 million related to the retroactive reinstatement in January 2013 of the U.S. Federal research and experimentation tax credit for 2012 and 2013, which did not recur in the first half period ended June 27, 2014.

As of June 27, 2014, the Company anticipates that unrecognized tax benefits will decrease by approximately $20 million over the next 12 months due to the potential resolution of unrecognized tax benefits involving several jurisdictions and tax periods. The actual amount of the decrease over the next 12 months could vary significantly depending on the ultimate timing and nature of any settlement.

Non-current income taxes payable include accrued potential interest of $13 million ($8 million after income taxes) at June 27, 2014 and $11 million ($7 million after income taxes) at December 31, 2013, and potential penalties of $7 million at June 27, 2014 and $8 million at December 31, 2013.