Basis of Presentation	9 Months Ended
Nov. 02, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Unless the context otherwise requires, the use of the terms “Best Buy,” “we,” “us,” and “our” in these Notes to Condensed Consolidated Financial Statements refers to Best Buy Co., Inc. and its consolidated subsidiaries. In the opinion of management, the accompanying condensed consolidated financial statements contain all adjustments necessary for a fair presentation as prescribed by accounting principles generally accepted in the United States (“GAAP”). All adjustments were comprised of normal recurring adjustments, except as noted in these Notes to Condensed Consolidated Financial Statements. Sale of Best Buy Europe During the first quarter of fiscal 2014, we entered into a definitive agreement with Carphone Warehouse Group plc ("CPW") to sell our 50% ownership interest in Best Buy Europe to CPW. On June 26, 2013, the sale was completed. As a result, beginning in the first quarter of fiscal 2014, the results of Best Buy Europe for all periods have been presented as discontinued operations. See Note 2, Discontinued Operations, for further information. On June 21, 2013, we filed a Current Report on Form 8-K (the “June 21^st Form 8-K”) to recast certain financial information included in our Transition Report on Form 10-K for the transition period from March 4, 2012, to February 2, 2013, to reflect the results of Best Buy Europe as discontinued operations. Description of Business Historically, we have realized more of our revenue and a large portion of our earnings in the fiscal fourth quarter, which includes the majority of the holiday shopping season in the U.S., Canada and Mexico, than in any other fiscal quarter. Due to the seasonal nature of our business, interim results are not necessarily indicative of results for the entire fiscal year. The interim financial statements and the related notes in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and related notes included in our Transition Report on Form 10-K for the fiscal year ended February 2, 2013, and the recast financial information included in the June 21^st Form 8-K. The first nine months of fiscal 2014 and fiscal 2013 included 39 weeks and 40 weeks, respectively. Beginning in the first quarter of fiscal 2013, we changed our fiscal year-end from the Saturday nearest the end of February to the Saturday nearest the end of January. As a result of this change, our fiscal year 2013 was an 11-month transition period ending on February 2, 2013. The results for the nine months ended November 3, 2012 include our fiscal month ended March 3, 2012, for operations that are not reported on a lag (primarily our Domestic segment and Canadian operations), which were also included in our results for the fiscal year ended March 3, 2012, included in our fiscal 2012 Form 10-K. See Note 2, Fiscal Year-end Change, in the Notes to Consolidated Financial Statements included in our Transition Report on Form 10-K for the fiscal year ended February 2, 2013, and the recast financial information included in the June 21^st Form 8-K, for additional information regarding our fiscal year-end change. In order to align our fiscal reporting periods and comply with statutory filing requirements in certain foreign jurisdictions, we consolidate the financial results of our China and Mexico operations on a one-month lag. Our policy is to accelerate recording the effect of events occurring in the lag period that significantly affect our consolidated financial statements. No such events were identified for this period. In preparing the accompanying condensed consolidated financial statements, we evaluated the period from November 3, 2013, through the date the financial statements were issued, for material subsequent events requiring recognition or disclosure. No such events were identified for this period.

Basis of Presentation

Unless the context otherwise requires, the use of the terms “Best Buy,” “we,” “us,” and “our” in these Notes to Condensed Consolidated Financial Statements refers to Best Buy Co., Inc. and its consolidated subsidiaries.

In the opinion of management, the accompanying condensed consolidated financial statements contain all adjustments necessary for a fair presentation as prescribed by accounting principles generally accepted in the United States (“GAAP”). All adjustments were comprised of normal recurring adjustments, except as noted in these Notes to Condensed Consolidated Financial Statements.

Sale of Best Buy Europe

During the first quarter of fiscal 2014, we entered into a definitive agreement with Carphone Warehouse Group plc ("CPW") to sell our 50% ownership interest in Best Buy Europe to CPW. On June 26, 2013, the sale was completed. As a result, beginning in the first quarter of fiscal 2014, the results of Best Buy Europe for all periods have been presented as discontinued operations. See Note 2, Discontinued Operations, for further information.

On June 21, 2013, we filed a Current Report on Form 8-K (the “June 21^st Form 8-K”) to recast certain financial information included in our Transition Report on Form 10-K for the transition period from March 4, 2012, to February 2, 2013, to reflect the results of Best Buy Europe as discontinued operations.

Description of Business

Historically, we have realized more of our revenue and a large portion of our earnings in the fiscal fourth quarter, which includes the majority of the holiday shopping season in the U.S., Canada and Mexico, than in any other fiscal quarter. Due to the seasonal nature of our business, interim results are not necessarily indicative of results for the entire fiscal year. The interim financial statements and the related notes in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and related notes included in our Transition Report on Form 10-K for the fiscal year ended February 2, 2013, and the recast financial information included in the June 21^st Form 8-K. The first nine months of fiscal 2014 and fiscal 2013 included 39 weeks and 40 weeks, respectively.

Beginning in the first quarter of fiscal 2013, we changed our fiscal year-end from the Saturday nearest the end of February to the Saturday nearest the end of January. As a result of this change, our fiscal year 2013 was an 11-month transition period ending on February 2, 2013. The results for the nine months ended November 3, 2012 include our fiscal month ended March 3, 2012, for operations that are not reported on a lag (primarily our Domestic segment and Canadian operations), which were also included in our results for the fiscal year ended March 3, 2012, included in our fiscal 2012 Form 10-K. See Note 2, Fiscal Year-end Change, in the Notes to Consolidated Financial Statements included in our Transition Report on Form 10-K for the fiscal year ended February 2, 2013, and the recast financial information included in the June 21^st Form 8-K, for additional information regarding our fiscal year-end change.

In order to align our fiscal reporting periods and comply with statutory filing requirements in certain foreign jurisdictions, we consolidate the financial results of our China and Mexico operations on a one-month lag. Our policy is to accelerate recording the effect of events occurring in the lag period that significantly affect our consolidated financial statements. No such events were identified for this period.

In preparing the accompanying condensed consolidated financial statements, we evaluated the period from November 3, 2013, through the date the financial statements were issued, for material subsequent events requiring recognition or disclosure. No such events were identified for this period.