INCOME AND OTHER TAXES	9 Months Ended
Oct. 28, 2016
Income Tax Disclosure [Abstract]
INCOME AND OTHER TAXES	INCOME AND OTHER TAXES For the three and nine months ended October 28, 2016, the Company's effective income tax rates for continuing operations were 29.0% and 21.1% on pre-tax losses from continuing operations of $2.3 billion and $2.9 billion, respectively. For the three and nine months ended October 30, 2015, the Company's effective income tax rates were 6.0% and 8.1% on pre-tax losses from continuing operations of $0.3 billion and $1.1 billion, respectively. The change in the Company's effective income tax rate was primarily attributable to tax benefits from charges associated with the EMC merger transaction, including purchase accounting adjustments, interest charges, and stock-based compensation expense. These benefits were partially offset by a higher mix of operating income in higher-tax jurisdictions. See Note 1 and Note 3 of the Notes to the Unaudited Condensed Consolidated Financial Statements for more information on the EMC merger transaction. The income tax rate for future quarters of Fiscal 2017 will be impacted by the actual mix of jurisdictions in which income is generated. The differences between the estimated effective income tax rates and the U.S. federal statutory rate of 35% principally result from the Company's geographical distribution of income and differences between the book and tax treatment of certain items. A portion of the Company's operations is subject to a reduced tax rate or is free of tax under various tax holidays. A significant portion of these income tax benefits is related to a tax holiday that will expire on December 31, 2016. The Company has negotiated new terms for the affected subsidiary, which provides for a reduced income tax rate and will be effective for a two-year bridge period expiring in January 2019. The Company's other tax holidays will expire in whole or in part during Fiscal 2019 through Fiscal 2023. Many of these tax holidays and reduced tax rates may be extended when certain conditions are met or may be terminated early if certain conditions are not met. With the EMC merger transaction, the Company acquired $6.2 billion of net deferred tax liabilities, which are included in other non-current assets and other non-current liabilities in the Condensed Consolidated Statements of Financial Position. The Company has not provided deferred taxes on undistributed earnings and other basis differences of EMC’s foreign subsidiaries as it is the Company's intention for these to remain permanently reinvested. Subsequent to October 28, 2016, the Company effectively settled its Internal Revenue Service ("IRS") audit for fiscal years 2004 through 2006. See Note 22 of the Notes to the Unaudited Condensed Consolidated Financial Statements for more information about the settlement. The Company’s U.S. federal income tax returns for fiscal years 2007 through 2009 are currently under examination by the IRS, which issued a Revenue Agent's Report ("RAR") related to those years during the nine months ended October 28, 2016. The IRS has proposed adjustments relating to certain tax positions taken on the tax returns with which the Company disagrees and will contest through the IRS administrative appeals procedures. Prior to the merger, EMC received an RAR for its tax years 2009 and 2010. The Company disagrees with certain proposed adjustments in this RAR and is currently contesting through the IRS administrative appeals process. The Company is also currently under income tax audits in various state and foreign jurisdictions. The Company is undergoing negotiations, and in some cases contested proceedings, relating to tax matters with the taxing authorities in these jurisdictions. The Company believes that it has provided adequate reserves related to all matters contained in tax periods open to examination. Although the Company believes it has made adequate provisions for the uncertainties surrounding these audits, should the Company experience unfavorable outcomes, such outcomes could have a material impact on its results of operations, financial position, and cash flows. With respect to major U.S. state and foreign taxing jurisdictions, the Company is generally not subject to tax examinations for years prior to fiscal year 2000. Judgment is required in evaluating the Company's uncertain tax positions and determining the Company's provision for income taxes. The Company's net unrecognized tax benefits, included in accrued and other, and other non-current liabilities in the Condensed Consolidated Statements of Financial Position was $3.8 billion and $3.1 billion as of October 28, 2016 and January 29, 2016, respectively. Included in the balance as of October 28, 2016 is $547 million of unrecognized tax benefits acquired as a part of the EMC merger transaction. Other than the IRS settlement described above, the Company does not anticipate a significant change to the total amount of unrecognized tax benefits within the next twelve months. The Company takes certain non-income tax positions in the jurisdictions in which it operates and has received certain non-income tax assessments from various jurisdictions. The Company believes that a material loss in these matters is not probable and that it is not reasonably possible that a material loss exceeding amounts already accrued has been incurred. The Company believes its positions in these non-income tax litigation matters are supportable and that it ultimately will prevail. In the normal course of business, the Company's positions and conclusions related to its non-income taxes could be challenged and assessments may be made. To the extent new information is obtained and the Company's views on its positions, probable outcomes of assessments, or litigation change, changes in estimates to the Company's accrued liabilities would be recorded in the period in which such a determination is made. In the resolution process for income tax and non-income tax audits, the Company may be required to provide collateral guarantees or indemnification to regulators and tax authorities until the matter is resolved.

INCOME AND OTHER TAXES

For the three and nine months ended October 28, 2016, the Company's effective income tax rates for continuing operations were 29.0% and 21.1% on pre-tax losses from continuing operations of $2.3 billion and $2.9 billion, respectively. For the three and nine months ended October 30, 2015, the Company's effective income tax rates were 6.0% and 8.1% on pre-tax losses from continuing operations of $0.3 billion and $1.1 billion, respectively. The change in the Company's effective income tax rate was primarily attributable to tax benefits from charges associated with the EMC merger transaction, including purchase accounting adjustments, interest charges, and stock-based compensation expense. These benefits were partially offset by a higher mix of operating income in higher-tax jurisdictions. See Note 1 and Note 3 of the Notes to the Unaudited Condensed Consolidated Financial Statements for more information on the EMC merger transaction. The income tax rate for future quarters of Fiscal 2017 will be impacted by the actual mix of jurisdictions in which income is generated.

The differences between the estimated effective income tax rates and the U.S. federal statutory rate of 35% principally result from the Company's geographical distribution of income and differences between the book and tax treatment of certain items. A portion of the Company's operations is subject to a reduced tax rate or is free of tax under various tax holidays. A significant portion of these income tax benefits is related to a tax holiday that will expire on December 31, 2016. The Company has negotiated new terms for the affected subsidiary, which provides for a reduced income tax rate and will be effective for a two-year bridge period expiring in January 2019. The Company's other tax holidays will expire in whole or in part during Fiscal 2019 through Fiscal 2023. Many of these tax holidays and reduced tax rates may be extended when certain conditions are met or may be terminated early if certain conditions are not met.

With the EMC merger transaction, the Company acquired $6.2 billion of net deferred tax liabilities, which are included in other non-current assets and other non-current liabilities in the Condensed Consolidated Statements of Financial Position. The Company has not provided deferred taxes on undistributed earnings and other basis differences of EMC’s foreign subsidiaries as it is the Company's intention for these to remain permanently reinvested.

Subsequent to October 28, 2016, the Company effectively settled its Internal Revenue Service ("IRS") audit for fiscal years 2004 through 2006. See Note 22 of the Notes to the Unaudited Condensed Consolidated Financial Statements for more information about the settlement. The Company’s U.S. federal income tax returns for fiscal years 2007 through 2009 are currently under examination by the IRS, which issued a Revenue Agent's Report ("RAR") related to those years during the nine months ended October 28, 2016. The IRS has proposed adjustments relating to certain tax positions taken on the tax returns with which the Company disagrees and will contest through the IRS administrative appeals procedures. Prior to the merger, EMC received an RAR for its tax years 2009 and 2010. The Company disagrees with certain proposed adjustments in this RAR and is currently contesting through the IRS administrative appeals process.

The Company is also currently under income tax audits in various state and foreign jurisdictions. The Company is undergoing negotiations, and in some cases contested proceedings, relating to tax matters with the taxing authorities in these jurisdictions. The Company believes that it has provided adequate reserves related to all matters contained in tax periods open to examination. Although the Company believes it has made adequate provisions for the uncertainties surrounding these audits, should the Company experience unfavorable outcomes, such outcomes could have a material impact on its results of operations, financial position, and cash flows. With respect to major U.S. state and foreign taxing jurisdictions, the Company is generally not subject to tax examinations for years prior to fiscal year 2000.

Judgment is required in evaluating the Company's uncertain tax positions and determining the Company's provision for income taxes. The Company's net unrecognized tax benefits, included in accrued and other, and other non-current liabilities in the Condensed Consolidated Statements of Financial Position was $3.8 billion and $3.1 billion as of October 28, 2016 and January 29, 2016, respectively. Included in the balance as of October 28, 2016 is $547 million of unrecognized tax benefits acquired as a part of the EMC merger transaction. Other than the IRS settlement described above, the Company does not anticipate a significant change to the total amount of unrecognized tax benefits within the next twelve months.

The Company takes certain non-income tax positions in the jurisdictions in which it operates and has received certain non-income tax assessments from various jurisdictions. The Company believes that a material loss in these matters is not probable and that it is not reasonably possible that a material loss exceeding amounts already accrued has been incurred. The Company believes its positions in these non-income tax litigation matters are supportable and that it ultimately will prevail. In the normal course of business, the Company's positions and conclusions related to its non-income taxes could be challenged and assessments may be made. To the extent new information is obtained and the Company's views on its positions, probable outcomes of assessments, or litigation change, changes in estimates to the Company's accrued liabilities would be recorded in the period in which such a determination is made. In the resolution process for income tax and non-income tax audits, the Company may be required to provide collateral guarantees or indemnification to regulators and tax authorities until the matter is resolved.