Income Taxes	3 Months Ended
Apr. 26, 2015
Notes to financial statements [Abstract]
Income Taxes	Income Taxes We recognized income tax expense of $38 million and $26 million for the three months ended April 26, 2015 and April 27, 2014, respectively. Income tax expense as a percentage of income before taxes, or our effective tax rate, was 22.0% and 16.4% for the three months ended April 26, 2015 and April 27, 2014, respectively. The increase in our effective tax rate in the first quarter of fiscal year 2016 as compared to the same period in the prior fiscal year was primarily related to an increase in the amount of earnings subject to US tax and permanent tax differences related to stock-based compensation in the prior year's first three months. Our effective tax rate on income before tax for the first three months of fiscal year 2016 of 22.0% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax rate. Further, our effective tax rate for the first three months of fiscal year 2016 of 22.0% differs from our annual projected effective tax rate for the first three months of fiscal year 2016 of 24.0% due to discrete events that occurred in the first three months of fiscal year 2016 primarily attributable to the tax benefits recognized upon the expiration of statutes of limitations in certain non-U.S. jurisdictions. Our effective tax rate on income before tax for the first three months of fiscal year 2015 of 16.4% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax. For the three months ended April 26, 2015, there have been no material changes to our tax years that remain subject to examination by major tax jurisdictions. Additionally, there have been no other material changes to our unrecognized tax benefits and any related interest or penalties since the fiscal year ended January 25, 2015, other than the recognition of tax benefits upon the expiration of statute of limitation in certain non-U.S. jurisdictions in the three months ended April 26, 2015. While we believe that we have adequately provided for all uncertain tax positions, or tax positions where it is believed not more-likely-than-not that the position will be sustained upon examination, amounts asserted by tax authorities could be greater or less than our accrued position. Accordingly, our provisions on federal, state and foreign tax related matters to be recorded in the future may change as revised estimates are made or the underlying matters are settled or otherwise resolved with the respective tax authorities. As of April 26, 2015, we do not believe that our estimates, as otherwise provided for, on such tax positions will significantly increase or decrease within the next twelve months.

Income Taxes

We recognized income tax expense of $38 million and $26 million for the three months ended April 26, 2015 and April 27, 2014, respectively. Income tax expense as a percentage of income before taxes, or our effective tax rate, was 22.0% and 16.4% for the three months ended April 26, 2015 and April 27, 2014, respectively.

The increase in our effective tax rate in the first quarter of fiscal year 2016 as compared to the same period in the prior fiscal year was primarily related to an increase in the amount of earnings subject to US tax and permanent tax differences related to stock-based compensation in the prior year's first three months.

Our effective tax rate on income before tax for the first three months of fiscal year 2016 of 22.0% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax rate. Further, our effective tax rate for the first three months of fiscal year 2016 of 22.0% differs from our annual projected effective tax rate for the first three months of fiscal year 2016 of 24.0% due to discrete events that occurred in the first three months of fiscal year 2016 primarily attributable to the tax benefits recognized upon the expiration of statutes of limitations in certain non-U.S. jurisdictions.

Our effective tax rate on income before tax for the first three months of fiscal year 2015 of 16.4% was lower than the United States federal statutory rate of 35% due primarily to income earned in jurisdictions where the tax rate is lower than the United States federal statutory tax.

For the three months ended April 26, 2015, there have been no material changes to our tax years that remain subject to examination by major tax jurisdictions. Additionally, there have been no other material changes to our unrecognized tax benefits and any related interest or penalties since the fiscal year ended January 25, 2015, other than the recognition of tax benefits upon the expiration of statute of limitation in certain non-U.S. jurisdictions in the three months ended April 26, 2015.

While we believe that we have adequately provided for all uncertain tax positions, or tax positions where it is believed not more-likely-than-not that the position will be sustained upon examination, amounts asserted by tax authorities could be greater or less than our accrued position. Accordingly, our provisions on federal, state and foreign tax related matters to be recorded in the future may change as revised estimates are made or the underlying matters are settled or otherwise resolved with the respective tax authorities. As of April 26, 2015, we do not believe that our estimates, as otherwise provided for, on such tax positions will significantly increase or decrease within the next twelve months.