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Restructuring (Composition of Restructuring Charges) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
May 03, 2025 | May 04, 2024
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | $ 109 | $ 15
Best Buy Health Optimization and China Sourcing Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 111 |
2024 Resource Optimization Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | (2) | 16
2023 Resource Optimization Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges |  | (1)
Asset Impairments [Member] | Best Buy Health Optimization and China Sourcing Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 73 |
Termination Benefits [Member] | Best Buy Health Optimization and China Sourcing Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 38 |
Termination Benefits [Member] | 2024 Resource Optimization Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | (2) | 16
Cumulative Amount | 172 |
Domestic Segment [Member] | Termination Benefits [Member] | 2024 Resource Optimization Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | (2) | 17
Cumulative Amount | 164 |
International Segment [Member] | Termination Benefits [Member] | 2024 Resource Optimization Initiative [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges |  | $ (1)
Cumulative Amount | $ 8 |

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