Cover

Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Jan. 29, 2023	Mar. 15, 2023	Jul. 29, 2022
Document Information [Line Items]
Document Type	10-K/A
Document Annual Report	true
Document Period End Date	Jan. 29, 2023
Current Fiscal Year End Date	--02-02
Document Transition Report	false
Entity File Number	001-38936
Entity Registrant Name	CHEWY, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	90-1020167
Entity Address, Address Line One	7700 West Sunrise Boulevard
Entity Address, City or Town	Plantation
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33322
City Area Code	786
Local Phone Number	320-7111
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	CHWY
Security Exchange Name	NYSE
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
Entity Shell Company	false
Entity Public Float			$ 3.6
Entity Central Index Key	0001766502
Amendment Flag	true
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2023
Amendment Description	Chewy, Inc. (“Chewy,” the “Company,” “we,” “our,” or “us”) is filing this Amendment No. 1 on Form 10-K/A (this “Amendment”) to amend the Company’s Annual Report on Form 10-K for the fiscal year ended January 29, 2023, originally filed with the Securities and Exchange Commission (the “SEC”) on March 22, 2023 (the “2022 10-K”), to include the information required by Items 10 through 14 of Part III of Form 10-K. This information was previously omitted from the 2022 10-K in reliance on General Instruction G(3) to Form 10-K, which permits the information in the above referenced items to be incorporated in the Form 10-K by reference from the Company’s definitive proxy statement (the “Proxy Statement”) if it is filed no later than 120 days after the Company’s fiscal year-end. We are filing this Amendment to provide the information required in Part III of Form 10-K because the Proxy Statement containing such information was inadvertently not filed by the Company within 120 days after the end of the fiscal year covered by the 2022 10-K. This Amendment (i) amends and restates in their entirety Items 10, 11, 12, 13 and 14 of Part III of the 2022 10-K and (ii) deletes the reference on the cover of the 2022 10-K to the incorporation by reference of portions of our Proxy Statement into Part III of the 2022 10-K. Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), this Amendment also contains certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, which are attached hereto. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4, and 5 of the certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 have been omitted and we are also not filing currently dated certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Terms used but not defined herein are as defined in our 2022 10-K. Except as described above, no other changes have been made to the 2022 10-K, and this Amendment does not modify, amend or update in any way any of the financial or other information contained in the 2022 10-K. This Amendment does not reflect events occurring after the date of the filing of our 2022 10-K and, except as expressly set forth herein, speaks as of the date of the filing of our 2022 10-K. Accordingly, this Amendment should be read in conjunction with our 2022 10-K and with our filings with the SEC subsequent to the filing of our 2022 10-K.
Document Financial Statement Error Correction [Flag]	false
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		115,757,139
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		311,188,356

Audit Information	12 Months Ended
Audit Information	Jan. 29, 2023
Audit Information [Abstract]
Auditor Firm ID	34
Auditor Name	Deloitte & Touche LLP
Auditor Location	Tempe, Arizona