Restructuring - Schedule of Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended
	May 02, 2026	May 03, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (9)	$ 109
Fiscal 2026 Labor and Store Optimization Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(8)	0
Best Buy Health Optimization and China Sourcing Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(1)	111
Fiscal 2024 Restructuring Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ (2)

- Definition

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