v3.26.1
Schedule H, Line 4i – Schedule of Assets (Held At End of Year) (Details) - EBP 002
12 Months Ended
Dec. 31, 2025
USD ($)
shares
EBP, Schedule of Asset Held for Investment [Line Items]  
Plan number 002
Entity tax identification number 55-0805038
EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution $ 409,874
Participant loan, interest rate 4.25%
TOTAL ASSETS HELD AT END OF YEAR $ 3,533,594,172
Total pooled funds  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 3,256,692,931
Total security-backed (synthetic) guaranteed investment contracts  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 152,477,585
Total stable value fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 158,426,731
Minimum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Participant loan, interest rate 4.25%
Investment, Identifier [Axis]: BEST BUY CO., INC. STOCK FUND | Best Buy Co., Inc. Common Stock  
EBP, Schedule of Asset Held for Investment [Line Items]  
Total Shares (if applicable) (in shares) | shares 1,839,469
Current Value $ 78,478,924
Investment, Identifier [Axis]: CASH AND CASH EQUIVALENTS | SSGA Government Money Market Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 4,054,675
Investment, Identifier [Axis]: Collective Investment Trust | Short Term Investment Fund II  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 5,949,146
Investment, Identifier [Axis]: POOLED FUNDS | Active U.S. Small/Mid Cap Equity Fund - Allspring Discovery CIT E1  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 35,531,037
Investment, Identifier [Axis]: POOLED FUNDS | MFS International Equity Fund - Class 3A  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 154,312,316
Investment, Identifier [Axis]: POOLED FUNDS | Prudential Core Plus Bond Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 189,693,594
Investment, Identifier [Axis]: POOLED FUNDS | State Street Global All Cap Equity Ex U.S. Index Fund - Class II  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 265,168,511
Investment, Identifier [Axis]: POOLED FUNDS | State Street Russell Small/Mid Cap Index Fund - Class II  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 305,209,217
Investment, Identifier [Axis]: POOLED FUNDS | State Street S&P 500 Index Fund - Class II  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 971,073,477
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2025 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 40,128,437
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2030 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 75,452,588
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2035 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 122,721,822
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2040 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 151,402,710
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2045 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 209,395,775
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2050 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 286,621,857
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2055 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 177,658,008
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2060 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 106,191,810
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2065 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 27,752,596
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement 2070 SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 765,922
Investment, Identifier [Axis]: POOLED FUNDS | State Street Target Retirement SL Fund - Class V  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 64,853,581
Investment, Identifier [Axis]: POOLED FUNDS | State Street U.S. Bond Index SL Series Fund - Class XIV  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 72,759,673
Investment, Identifier [Axis]: REGISTERED INVESTMENT COMPANIES | Active U.S. Small/Mid Cap Equity Fund - DFA U.S. Targeted Value I  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 35,531,037
Investment, Identifier [Axis]: STABLE VALUE FUND | Galliard Intermediate Core Fund A  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 46,464,835
Investment, Identifier [Axis]: STABLE VALUE FUND | Galliard Intermediate Core Fund L  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 45,961,320
Investment, Identifier [Axis]: STABLE VALUE FUND | Galliard Short Core Fund F  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 57,936,226
Investment, Identifier [Axis]: STABLE VALUE FUND | Wrapper contracts  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 2,115,204