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v3.25.1

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Feb. 01, 2025 | Feb. 03, 2024 | Jan. 28, 2023
Consolidated Statements of Cash Flows [Abstract] |  |  |
Payment for purchased tax credits | $ 267.0 | $ 103.0 | $ 2.0

X
- Definition Payment for purchased tax credits. + References No definition available. + Details
Name: | bby_PaymentForPurchasedTaxCredits
Namespace Prefix: | bby_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration