v3.26.3
Earnings Per Share - Schedule of Basic and Diluted EPS (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Aug. 30, 2026
Aug. 24, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Net earnings attributable to General Mills $ 397.0 $ 1,204.2
Average number of common shares – basic EPS (in shares) 537.4 541.3
Average number of common shares - diluted EPS (in shares) 537.9 542.5
Earnings per share – basic (usd per share) $ 0.74 $ 2.22
Earnings per share – diluted (usd per share) $ 0.74 $ 2.22
Stock options    
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Incremental share effect (in shares) 0.0 0.2
Restricted stock units and performance share units    
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Incremental share effect (in shares) 0.5 1.0