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Acquisitions Acquisitions (Narrative) (Details) - USD ($)
 12 Months Ended
Nov. 30, 2020
Nov. 30, 2019
Nov. 30, 2018
Business Acquisition [Line Items]      
Useful life 10 years    
Goodwill $ 4,986,300,000 $ 4,505,200,000  
Intangible asset amortization expense 20,200,000 20,300,000 $ 20,600,000
Payments of contingent consideration 0 0 2,500,000
Reckitt Benckiser's Food Division [Member]      
Business Acquisition [Line Items]      
Working capital adjustments   4,200,000  
Business Combination, Integration Related Costs     22,200,000
Payments to acquire businesses, net of cash acquired   $ 4,210,000,000  
Business Acquisition, Transaction Costs     300,000
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed     $ 22,500,000
Shanghai [Member]      
Business Acquisition [Line Items]      
Ownership interest     10.00%
Purchase of minority interest     $ 12,700,000
Buyout of minority interest     $ 12,400,000
Cholula [Member]      
Business Acquisition [Line Items]      
Net sales $ 96,000,000    
Useful life 15 years    
Payments to acquire businesses, net of cash acquired $ 803,000,000.0    
Goodwill, Acquired During Period 410,500,000    
Indefinite-lived Intangible Assets Acquired 380,000,000.0    
Finite-lived Intangible Assets Acquired 21,000,000.0    
Business Acquisition, Goodwill, Expected Tax Deductible Amount 285,000,000    
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory 4,900,000    
Business Acquisition, Transaction Costs 11,200,000    
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed 35,000,000    
FONA [Member]      
Business Acquisition [Line Items]      
Payments to acquire businesses, net of cash acquired 710,000,000    
Business Acquisition, Transaction Costs $ 1,200,000