Cover page - USD ($) $ in Millions	12 Months Ended
Feb. 02, 2025	Mar. 21, 2025	Jul. 26, 2024
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Feb. 02, 2025
Current Fiscal Year End Date	--02-02
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Entity File Number	001-33608
Entity Registrant Name	lululemon athletica inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-3842867
Entity Address, Address Line One	1818 Cornwall Avenue
Entity Address, City or Town	Vancouver
Entity Address, State or Province	BC
Entity Address, Postal Zip Code	V6J 1C7
City Area Code	604
Local Phone Number	732-6124
Title of 12(b) Security	Common Stock, par value $0.005 per share
Trading Symbol	LULU
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 26,721
Entity Common Stock, Shares Outstanding		115,521,231
Documents Incorporated by Reference	Portions of the Proxy Statement for the 2025 Annual Meeting of Stockholders have been incorporated by reference into Part III of this Annual Report on Form 10-K.
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Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Entity Central Index Key	0001397187

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