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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 29, 2024
Cover [Abstract]    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Dec. 31, 2023  
Current Fiscal Year End Date --12-31  
Document Transition Report false  
Entity File Number 001-41805  
Entity Registrant Name MAPLEBEAR INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 46-0723335  
Entity Address, Address Line One 50 Beale Street  
Entity Address, Address Line Two Suite 600  
Entity Address, City or Town San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94105  
City Area Code 888  
Local Phone Number 246-7822  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol CART  
Security Exchange Name NASDAQ  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
ICFR Auditor Attestation Flag false  
Document Financial Statement Error Correction [Flag] false  
Entity Shell Company false  
Entity Public Float $ 4.2  
Entity Common Stock, Shares Outstanding   266,498,832
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement for the 2024 Annual Meeting of Stockholders are incorporated herein by reference into Part III of this Annual Report on Form 10-K to the extent stated herein. Such definitive Proxy Statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended December 31, 2023.
  
Amendment Flag false  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus FY  
Entity Central Index Key 0001579091