Business Segments And Geographic Areas (Revenue from External Customers by Products and Services) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Segment Reporting Information [Line Items]
Total net sales	$ 6,662.2	$ 6,350.5	$ 6,317.9
Consumer Segment | Spices & seasoning
Segment Reporting Information [Line Items]
Total net sales	1,578.3	1,538.7	1,680.8
Consumer Segment | Recipe mixes
Segment Reporting Information [Line Items]
Total net sales	430.5	428.0	433.2
Consumer Segment | Condiments & sauces
Segment Reporting Information [Line Items]
Total net sales	921.0	858.2	800.1
Consumer Segment | Regional leaders
Segment Reporting Information [Line Items]
Total net sales	877.5	933.0	1,023.4
Flavor Solutions Segment | Flavors
Segment Reporting Information [Line Items]
Total net sales	1,585.7	1,420.6	1,262.7
Flavor Solutions Segment | Branded foodservice
Segment Reporting Information [Line Items]
Total net sales	598.4	552.9	490.8
Flavor Solutions Segment | Custom condiments
Segment Reporting Information [Line Items]
Total net sales	317.1	280.8	297.0
Flavor Solutions Segment | Coatings, bulk spices & herbs
Segment Reporting Information [Line Items]
Total net sales	$ 353.7	$ 338.3	$ 329.9