Income Taxes	9 Months Ended
Sep. 29, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rates for the three-month and nine-month periods ended September 29, 2018 were 11.2% and 18.6%, respectively. The variances from the 2018 federal statutory rate of 21% for the three and nine months ended September 29, 2018 were attributable to the effect of lower tax rates in foreign jurisdictions and the generation of tax credits. These benefits were partially offset by increases related to foreign earnings subject to U.S. taxation, the U.S. impact of the Enterprise acquisition and certain discrete items. The discrete items included the favorable impacts of share-based compensation, adjustments to the one-time transition tax related to the Tax Cuts and Jobs Act enacted in December 2017 (“U.S. Tax Reform” or “the Act”) offset by audit settlements with the U.S. Internal Revenue Service for fiscal years 2013, 2014, and 2015 and an increase in uncertain tax positions resulting from interpretative guidance issued during the second quarter of 2018. In the prior year, the effective tax rates for the three and nine-month periods ended September 30, 2017 were (71.4)% and (30.0)%, respectively. The variances from the 2017 federal statutory rate of 35% for the three and nine months ended September 30, 2017 were attributable to pre-tax losses in the U.S., lower tax rates in foreign jurisdictions, the generation of tax credits, and the impact of certain discrete items, which were partially offset by the U.S. impact of the Enterprise acquisition and state deferred tax expense due to changes in our business operations. The discrete items included the favorable impacts of share-based compensation as well as benefits associated with an intercompany sale of intellectual property and a rate decrease in Singapore. The Company earns a significant amount of its operating income outside of the U.S. The Company’s policy considers its U.S. investment in directly-owned foreign affiliates to be indefinitely reinvested. Under the Act, future remittance of dividends from foreign subsidiaries to the U.S. parent will generally no longer be subject to U.S. tax when repatriated, but may be subject to withholding taxes of the payor affiliate country. Additionally, gains and losses on taxable dispositions of U.S.-owned foreign affiliates continue to be subject to U.S. tax. Pre-tax earnings outside the United States are primarily generated in the United Kingdom, Singapore, and Luxembourg, with statutory rates of 19%, 17%, and 27%, respectively. During 2017, the Company received approval from the Singapore Economic Development Board for a tax rate of 10% with the Company’s commitment to make increased investments in Singapore. The Singapore incentivized rate expires on December 31, 2018. Quarterly, Management evaluates all jurisdictions based on historical pre-tax earnings and taxable income to determine the need for valuation allowances. Based on this analysis, a valuation allowance has been recorded for any jurisdictions where, in the Company’s judgment, tax benefits will not be realized. As part of the purchase price allocation of the stock acquisition of Xplore in the current period, the Company recorded $2 million in deferred tax assets associated with the difference between fair market value of the net assets acquired and carry-over tax basis. See Note 5 Business Acquisition. Uncertain Tax Positions During the third quarter of 2018, the Company settled the U.S. income tax audits for fiscal years 2013, 2014, and 2015. The settlement resulted in an incremental $2 million income tax expense including the reversal of $12 million in previously recorded unrecognized tax benefits. During the nine months ended September 29, 2018, the Company recorded a $14 million charge related to increases in income tax uncertainties for prior year tax positions, including interest and penalties. The Company is currently undergoing a UK income tax audit for fiscal years 2012 and 2014. Fiscal years 2004 through 2017 remain open to examination by multiple foreign and U.S. state taxing jurisdictions. The Company continues to believe its tax positions are supportable, however, the Company anticipates that $22 million of uncertain tax benefits may be disallowed within the next twelve months and has reflected this liability as current within the Company’s Consolidated Balance Sheets. Due to uncertainties in any tax audit or litigation outcome, the Company’s estimates of the ultimate settlement of uncertain tax positions may change and the actual tax benefits may differ significantly from the estimates. Impact of U.S. Tax Reform Enacted on December 22, 2017, the Act reduced the U.S. federal corporate tax rate from 35% to 21%, and requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. Based on current operations, we estimate that the Company is subject to the Global Intangible Low-Taxed Income and the Deduction for Foreign-Derived Intangible Income provisions of the Act. We estimate that the new limitations which defer U.S. interest deductions in excess of 30% of Adjusted Taxable Income are not applicable. Additionally, the Company is no longer able to deduct performance-based compensation for its covered employees which exceeds the limitation under Internal Revenue Code Section 162(m). These impacts are included in the calculation of our annual estimated effective tax rate. The Company has updated its calculation of the one-time transition tax to a total liability of $34 million and recorded a $3 million benefit in the nine-month period ended September 29, 2018. The Company utilized a total of $27 million of available net operating losses, research and developments credits, alternative minimum tax credits, and foreign tax credits resulting in a liability of $7 million. At September 29, 2018, in addition to the one-time transition tax, we continue to analyze the final impacts related to performance-based compensation for covered employees as well as accounting for the state income tax effects of enactment of the Act. The Company remeasured U.S. deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. However, the remeasurement of deferred taxes requires further analysis regarding the state tax impacts.

Income Taxes

The Company’s effective tax rates for the three-month and nine-month periods ended September 29, 2018 were 11.2% and 18.6%, respectively. The variances from the 2018 federal statutory rate of 21% for the three and nine months ended September 29, 2018 were attributable to the effect of lower tax rates in foreign jurisdictions and the generation of tax credits. These benefits were partially offset by increases related to foreign earnings subject to U.S. taxation, the U.S. impact of the Enterprise acquisition and certain discrete items. The discrete items included the favorable impacts of share-based compensation, adjustments to the one-time transition tax related to the Tax Cuts and Jobs Act enacted in December 2017 (“U.S. Tax Reform” or “the Act”) offset by audit settlements with the U.S. Internal Revenue Service for fiscal years 2013, 2014, and 2015 and an increase in uncertain tax positions resulting from interpretative guidance issued during the second quarter of 2018.

In the prior year, the effective tax rates for the three and nine-month periods ended September 30, 2017 were (71.4)% and (30.0)%, respectively. The variances from the 2017 federal statutory rate of 35% for the three and nine months ended September 30, 2017 were attributable to pre-tax losses in the U.S., lower tax rates in foreign jurisdictions, the generation of tax credits, and the impact of certain discrete items, which were partially offset by the U.S. impact of the Enterprise acquisition and state deferred tax expense due to changes in our business operations. The discrete items included the favorable impacts of share-based compensation as well as benefits associated with an intercompany sale of intellectual property and a rate decrease in Singapore.

The Company earns a significant amount of its operating income outside of the U.S. The Company’s policy considers its U.S. investment in directly-owned foreign affiliates to be indefinitely reinvested. Under the Act, future remittance of dividends from foreign subsidiaries to the U.S. parent will generally no longer be subject to U.S. tax when repatriated, but may be subject to withholding taxes of the payor affiliate country. Additionally, gains and losses on taxable dispositions of U.S.-owned foreign affiliates continue to be subject to U.S. tax.

Pre-tax earnings outside the United States are primarily generated in the United Kingdom, Singapore, and Luxembourg, with statutory rates of 19%, 17%, and 27%, respectively. During 2017, the Company received approval from the Singapore Economic Development Board for a tax rate of 10% with the Company’s commitment to make increased investments in Singapore. The Singapore incentivized rate expires on December 31, 2018.

Quarterly, Management evaluates all jurisdictions based on historical pre-tax earnings and taxable income to determine the need for valuation allowances. Based on this analysis, a valuation allowance has been recorded for any jurisdictions where, in the Company’s judgment, tax benefits will not be realized.

As part of the purchase price allocation of the stock acquisition of Xplore in the current period, the Company recorded $2 million in deferred tax assets associated with the difference between fair market value of the net assets acquired and carry-over tax basis. See Note 5 Business Acquisition.

Uncertain Tax Positions

During the third quarter of 2018, the Company settled the U.S. income tax audits for fiscal years 2013, 2014, and 2015. The settlement resulted in an incremental $2 million income tax expense including the reversal of $12 million in previously recorded unrecognized tax benefits. During the nine months ended September 29, 2018, the Company recorded a $14 million charge related to increases in income tax uncertainties for prior year tax positions, including interest and penalties. The Company is currently undergoing a UK income tax audit for fiscal years 2012 and 2014. Fiscal years 2004 through 2017 remain open to examination by multiple foreign and U.S. state taxing jurisdictions. The Company continues to believe its tax positions are supportable, however, the Company anticipates that $22 million of uncertain tax benefits may be disallowed within the next twelve months and has reflected this liability as current within the Company’s Consolidated Balance Sheets. Due to uncertainties in any tax audit or litigation outcome, the Company’s estimates of the ultimate settlement of uncertain tax positions may change and the actual tax benefits may differ significantly from the estimates.

Impact of U.S. Tax Reform

Enacted on December 22, 2017, the Act reduced the U.S. federal corporate tax rate from 35% to 21%, and requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. Based on current operations, we estimate that the Company is subject to the Global Intangible Low-Taxed Income and the Deduction for Foreign-Derived Intangible Income provisions of the Act. We estimate that the new limitations which defer U.S. interest deductions in excess of 30% of Adjusted Taxable Income are not applicable. Additionally, the Company is no longer able to deduct performance-based compensation for its covered employees which exceeds the limitation under Internal Revenue Code Section 162(m). These impacts are included in the calculation of our annual estimated effective tax rate.

The Company has updated its calculation of the one-time transition tax to a total liability of $34 million and recorded a $3 million benefit in the nine-month period ended September 29, 2018. The Company utilized a total of $27 million of available net operating losses, research and developments credits, alternative minimum tax credits, and foreign tax credits resulting in a liability of $7 million.

At September 29, 2018, in addition to the one-time transition tax, we continue to analyze the final impacts related to performance-based compensation for covered employees as well as accounting for the state income tax effects of enactment of the Act. The Company remeasured U.S. deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%. However, the remeasurement of deferred taxes requires further analysis regarding the state tax impacts.