Business Segments And Geographic Areas (Revenue from External Customers by Products and Services) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Segment Reporting Information [Line Items]
Total net sales	$ 6,723.7	$ 6,662.2	$ 6,350.5
Consumer Segment | Spices & seasoning
Segment Reporting Information [Line Items]
Total net sales	1,651.0	1,578.3	1,538.7
Consumer Segment | Recipe mixes
Segment Reporting Information [Line Items]
Total net sales	437.7	430.5	428.0
Consumer Segment | Condiments & sauces
Segment Reporting Information [Line Items]
Total net sales	936.6	921.0	858.2
Consumer Segment | Regional leaders
Segment Reporting Information [Line Items]
Total net sales	823.2	877.5	933.0
Flavor Solutions Segment | Flavors
Segment Reporting Information [Line Items]
Total net sales	1,618.6	1,585.7	1,420.6
Flavor Solutions Segment | Branded foodservice
Segment Reporting Information [Line Items]
Total net sales	615.1	598.4	552.9
Flavor Solutions Segment | Custom condiments
Segment Reporting Information [Line Items]
Total net sales	336.8	317.1	280.8
Flavor Solutions Segment | Coatings, bulk spices & herbs
Segment Reporting Information [Line Items]
Total net sales	$ 304.7	$ 353.7	$ 338.3