Williams-Sonoma, Inc. 401(k) Plan and Other Employee Benefits (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jul. 31, 2022	Jan. 29, 2023	Jan. 30, 2022	Jan. 31, 2021
Compensation Related Costs [Abstract]
Defined contribution retirement plan, maximum percentage of salary deferral contributions by employee		75.00%
Employer matching contribution		50.00%
Defined contribution retirement plan, maximum percentage of salary deferral contributions subject to match by employer		6.00%
Years of service required to be eligible for company matching contributions		1 year
Matching contribution, vesting percentage per year during first five years of employment		20.00%
Vesting percentage	100.00%
Service period (in years)	1 year
Contributions to the profit sharing plan		$ 11.4	$ 11.3	$ 10.0
Deferred compensation liabilities included in other long-term obligations		38.8	42.3
Cash surrender value of the life insurance policies		$ 38.4	$ 46.3