Williams-Sonoma, Inc. 401(k) Plan and Other Associate Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 01, 2026	Feb. 02, 2025	Jan. 28, 2024
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%
Contributions to the profit sharing plan	$ 10.7	$ 14.2	$ 13.6
Required vesting percentage	1
Deferred compensation liabilities included in other long-term obligations	$ 54.6	49.4
Cash surrender value of the life insurance policies	$ 64.0	$ 53.6

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Amount of cost for defined contribution plan.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

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