v3.25.2
Document and Entity Information
Sep. 17, 2025
Document And Entity Information [Line Items]  
Entity Registrant Name GENERAL MILLS INC
Amendment Flag false
Entity Central Index Key 0000040704
Document Type 8-K
Document Period End Date Sep. 17, 2025
Entity Incorporation State Country Code DE
Entity File Number 001-01185
Entity Tax Identification Number 41-0274440
Entity Address, Address Line One Number One General Mills Boulevard
Entity Address, City or Town Minneapolis
Entity Address, State or Province MN
Entity Address, Postal Zip Code 55426
City Area Code (763)
Local Phone Number 764-7600
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock, $.10 par value
Trading Symbol GIS
Security Exchange Name NYSE
M 0.125 Notes Due 20257 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 0.125% Notes due 2025
Trading Symbol GIS 25A
Security Exchange Name NYSE
M 0.450 Notes Due 20261 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 0.450% Notes due 2026
Trading Symbol GIS 26
Security Exchange Name NYSE
M 1.500 Notes Due 20272 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.500% Notes due 2027
Trading Symbol GIS 27
Security Exchange Name NYSE
M 3.907 Notes Due 20293 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.907% Notes due 2029
Trading Symbol GIS 29
Security Exchange Name NYSE
M 3.560 Notes Due 20304 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.560% Notes due 2030
Trading Symbol GIS 30A
Security Exchange Name NYSE
M 3.600 Notes Due 20325 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.600% Notes due 2032
Trading Symbol GIS 32
Security Exchange Name NYSE
M 3.850 Notes Due 20346 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.850% Notes due 2034
Trading Symbol GIS 34
Security Exchange Name NYSE