v3.26.1
QUARTERLY DATA (UNAUDITED) - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
May 31, 2026
Nov. 23, 2025
May 25, 2025
May 31, 2026
May 25, 2025
May 26, 2024
Business Combination [Line Items]            
Goodwill impairment       $ 1,500.0   $ 117.1
Impairment of intangible assets $ 250.0 $ 52.9   302.9   103.1
Total restructuring, transformation, and impairment charges       2,990.2 $ 87.5 259.0
After-tax loss from joint ventures 17.6     76.5 (57.6) (84.8)
Repurchase of Class A limited membership interests in General Mills Cereals, LLC     $ 252.8 0.0 10.5 0.0
Business combination, integration-related cost, expense     6.7      
Original Capital Account Balance            
Business Combination [Line Items]            
Repurchase of Class A limited membership interests in General Mills Cereals, LLC     242.3      
Capital Account Appreciation            
Business Combination [Line Items]            
Repurchase of Class A limited membership interests in General Mills Cereals, LLC     10.5      
Charges associated with restructuring and transformation actions previously announced            
Business Combination [Line Items]            
Restructuring, impairment, and other exit costs 20.0          
Total restructuring, transformation, and impairment charges 12.2     60.1 17.4 $ 20.2
Global transformation initiative            
Business Combination [Line Items]            
Total restructuring, transformation, and impairment charges     70.1   $ 70.1  
Network Optimization Actions            
Business Combination [Line Items]            
Total restructuring, transformation, and impairment charges     17.4      
Brazil Business            
Business Combination [Line Items]            
Disposal group, including discontinued operation, transaction cost 14.8          
North American Yogurt Businesses            
Business Combination [Line Items]            
Disposal group, including discontinued operation, transaction cost     $ 16.2      
Disposal Group, Held-for-Sale, Not Discontinued Operations | Brazil Business            
Business Combination [Line Items]            
Non-cash pre-tax loss $ 1,031.8     1,031.8    
North America Pet            
Business Combination [Line Items]            
Goodwill impairment       1,500.0    
Impairment of intangible assets       $ 250.0