XML 57 R43.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Restructuring Charges Composition of Restructuring Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 29, 2017 | Jul. 30, 2016 | Jul. 29, 2017 | Jul. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 2 | $ 0 | $ 2 | $ 29
Restructuring Program Renew Blue Phase 2 [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | (2) | 0 | 25
Restructuring and Related Cost, Cost Incurred to Date | 26 |  | 26 |
Restructuring Program Renew Blue Phase 2 [Member] | Domestic [Member] | Property and equipment write-downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 0 | 7
Restructuring and Related Cost, Cost Incurred to Date | 8 |  | 8 |
Restructuring Program Renew Blue Phase 2 [Member] | Domestic [Member] | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | (2) | 0 | 18
Restructuring and Related Cost, Cost Incurred to Date | 18 |  | 18 |
Restructuring Program Canadian Brand Consolidation [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (1) | 2 | (1) | 1
Restructuring and Related Cost, Cost Incurred to Date | 202 |  | 202 |
Restructuring Program Canadian Brand Consolidation [Member] | International Segment [Member] | Inventory write-downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 0 | 0
Restructuring and Related Cost, Cost Incurred to Date | 3 |  | 3 |
Restructuring Program Canadian Brand Consolidation [Member] | International Segment [Member] | Property and equipment write-downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 0 | 0
Restructuring and Related Cost, Cost Incurred to Date | 30 |  | 30 |
Restructuring Program Canadian Brand Consolidation [Member] | International Segment [Member] | Tradename impairment |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 0 | 0
Restructuring and Related Cost, Cost Incurred to Date | 40 |  | 40 |
Restructuring Program Canadian Brand Consolidation [Member] | International Segment [Member] | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 0 | 0
Restructuring and Related Cost, Cost Incurred to Date | 25 |  | 25 |
Restructuring Program Canadian Brand Consolidation [Member] | International Segment [Member] | Facility closure and other costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (1) | $ 2 | (1) | $ 1
Restructuring and Related Cost, Cost Incurred to Date | $ 104 |  | $ 104 |

X
- Definition Amount of costs incurred to date for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringAndRelatedCostCostIncurredToDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringPlanAxis=bby_RestructuringProgramRenewBluePhase2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bby_DomesticSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=bby_PropertyAndEquipmentWriteDownsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=bby_RestructuringProgramCanadianBrandConsolidationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bby_InternationalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=bby_InventoryWriteDownsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=bby_ImpairmentofIntangibleAssetsRelatedtoRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_FacilityClosingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |