Goodwill and Intangible Assets - Schedule of Definite-Lived Intangible Assets (Details) - USD ($) $ in Millions	Nov. 01, 2025	Feb. 01, 2025	Nov. 02, 2024
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying ‎Amount	$ 482	$ 516	$ 516
Accumulated ‎Amortization	$ 475	425	420
Weighted average useful life remaining ‎	10 months 24 days
Best Buy Health Optimization and China Sourcing Initiative
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying ‎Amount	$ 34
Accumulated ‎Amortization	16
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying ‎Amount	339	360	360
Accumulated ‎Amortization	339	285	283
Customer relationships | Best Buy Health
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated ‎Amortization	53
Tradenames
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying ‎Amount	87	92	92
Accumulated ‎Amortization	$ 80	79	77
Weighted average useful life remaining ‎	10 months 24 days
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying ‎Amount	$ 56	64	64
Accumulated ‎Amortization	$ 56	$ 61	$ 60