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Document and Entity Information (USD $)
12 Months Ended
Feb. 02, 2014
Mar. 31, 2014
Aug. 04, 2013
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Feb. 02, 2014    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Trading Symbol WSM    
Entity Registrant Name WILLIAMS SONOMA INC    
Entity Central Index Key 0000719955    
Current Fiscal Year End Date --02-02    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   94,125,832  
Entity Public Float     $ 5,757,966,000