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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)
In Millions, except Share data, unless otherwise specified
Total
Parent [Member]
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Noncontrolling Interest [Member]
Beginning balances at Mar. 03, 2012 $ 4,366us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 3,745us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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$ 34us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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= us-gaap_CommonStockMember
$ 0us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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$ 3,621us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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= us-gaap_RetainedEarningsMember
$ 90us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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= us-gaap_AccumulatedOtherComprehensiveIncomeMember
$ 621us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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= us-gaap_NoncontrollingInterestMember
Beginning balances (in shares) at Mar. 03, 2012     341,000,000us-gaap_SharesIssued
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Increase (decrease) in shareholders' equity              
Adjustment for fiscal year-end change (Note 2) 6bby_FiscalYearChangeAdjustmentEquity (3)bby_FiscalYearChangeAdjustmentEquity
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0bby_FiscalYearChangeAdjustmentEquity
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= us-gaap_CommonStockMember
0bby_FiscalYearChangeAdjustmentEquity
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= us-gaap_AdditionalPaidInCapitalMember
(14)bby_FiscalYearChangeAdjustmentEquity
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= us-gaap_RetainedEarningsMember
11bby_FiscalYearChangeAdjustmentEquity
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= us-gaap_AccumulatedOtherComprehensiveIncomeMember
9bby_FiscalYearChangeAdjustmentEquity
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Net earnings (loss) (420)us-gaap_ProfitLoss (441)us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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= us-gaap_AdditionalPaidInCapitalMember
(441)us-gaap_ProfitLoss
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= us-gaap_RetainedEarningsMember
0us-gaap_ProfitLoss
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= us-gaap_AccumulatedOtherComprehensiveIncomeMember
21us-gaap_ProfitLoss
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= us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss), net of tax:              
Foreign currency translation adjustments 15us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax 9us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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0us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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0us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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0us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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= us-gaap_RetainedEarningsMember
9us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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= us-gaap_AccumulatedOtherComprehensiveIncomeMember
6us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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= us-gaap_NoncontrollingInterestMember
Foreign currency translation adjustments 15us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax            
Unrealized gain (loss) on available-for-sale investments 2us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax 2us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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2us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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Reclassification of foreign currency translations adjustments into earnings due to sale of business 0us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax            
Dividend distribution (3)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders 0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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(3)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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= us-gaap_NoncontrollingInterestMember
Tax loss from stock options canceled or exercised, restricted stock vesting and employee stock purchase plan (44)us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation (44)us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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(44)us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Issuance of common stock under employee stock purchase plan 24us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan 24us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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24us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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= us-gaap_RetainedEarningsMember
0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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= us-gaap_AccumulatedOtherComprehensiveIncomeMember
0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Issuance of common stock under employee stock purchase plan (in shares)     1,000,000us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
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Stock-based compensation 112us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 112us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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112us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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Restricted stock vested and stock options exercised 1us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised 1us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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1us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
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= us-gaap_NoncontrollingInterestMember
Stock options exercised (in shares)     2,000,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
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Common stock dividends, $0.72 per share during the period ended January 31, 2015, $0.68 per share during the period ended February 1, 2014, $0.66 per share during the period ended February 2, 2013, respectively (222)us-gaap_DividendsCommonStock (222)us-gaap_DividendsCommonStock
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0us-gaap_DividendsCommonStock
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0us-gaap_DividendsCommonStock
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(222)us-gaap_DividendsCommonStock
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0us-gaap_DividendsCommonStock
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0us-gaap_DividendsCommonStock
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Repurchase of common stock (122)us-gaap_StockRepurchasedDuringPeriodValue (122)us-gaap_StockRepurchasedDuringPeriodValue
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0us-gaap_StockRepurchasedDuringPeriodValue
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(39)us-gaap_StockRepurchasedDuringPeriodValue
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(83)us-gaap_StockRepurchasedDuringPeriodValue
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0us-gaap_StockRepurchasedDuringPeriodValue
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0us-gaap_StockRepurchasedDuringPeriodValue
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Repurchase of common stock (in shares)     (6,000,000)us-gaap_StockRepurchasedDuringPeriodShares
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Ending balances at Feb. 02, 2013 3,715us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 3,061us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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34us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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54us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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2,861us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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112us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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654us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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= us-gaap_NoncontrollingInterestMember
Ending balances (in shares) at Feb. 02, 2013     338,000,000us-gaap_SharesIssued
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= us-gaap_CommonStockMember
       
Increase (decrease) in shareholders' equity              
Net earnings (loss) 523us-gaap_ProfitLoss 532us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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532us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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(9)us-gaap_ProfitLoss
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Other comprehensive income (loss), net of tax:              
Foreign currency translation adjustments (136)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax (136)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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Foreign currency translation adjustments (147)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax (136)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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(136)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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(11)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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Unrealized gain (loss) on available-for-sale investments 6us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax 7us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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7us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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(1)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
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Reclassification of foreign currency translations adjustments into earnings due to sale of business 654us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax 508us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax
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0us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax
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Reclassification of (gains) losses on available-for-sale investments into earnings 2us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax 1us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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Dividend distribution (1)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders 0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
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Issuance of common stock under employee stock purchase plan 13us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan 13us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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Issuance of common stock under employee stock purchase plan (in shares)     1,000,000us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
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Stock-based compensation 97us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 97us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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97us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
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Common stock dividends, $0.72 per share during the period ended January 31, 2015, $0.68 per share during the period ended February 1, 2014, $0.66 per share during the period ended February 2, 2013, respectively (234)us-gaap_DividendsCommonStock (234)us-gaap_DividendsCommonStock
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0us-gaap_DividendsCommonStock
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/ us-gaap_StatementEquityComponentsAxis
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35us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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492us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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Ending balances (in shares) at Feb. 01, 2014     347,000,000us-gaap_SharesIssued
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Increase (decrease) in shareholders' equity              
Net earnings (loss) 1,235us-gaap_ProfitLoss 1,233us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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0us-gaap_ProfitLoss
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2us-gaap_ProfitLoss
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Other comprehensive income (loss), net of tax:              
Foreign currency translation adjustments (103)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax (103)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
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0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
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0us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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0us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
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Stock options exercised (in shares) 1,679,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised   5,000,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
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$ 35us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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$ 382us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
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Ending balances (in shares) at Jan. 31, 2015     352,000,000us-gaap_SharesIssued
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