Business Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Segment Reporting Information [Line Items]
Revenues	$ 1,724.9	$ 1,679.8	$ 4,989.9	$ 4,925.7
Operating income excluding special charges	293.6	288.4	777.4	762.0
Income from unconsolidated operations	16.9	17.9	54.0	56.0
Less: Special charges	4.9	1.9	17.7	7.9
Operating income	288.7	286.5	759.7	754.1
Consumer
Segment Reporting Information [Line Items]
Revenues	973.2	937.4	2,823.0	2,763.4
Operating income excluding special charges	193.8	186.8	504.1	512.4
Income from unconsolidated operations	16.7	17.1	50.4	54.7
Less: Special charges	3.1	0.5	10.9	3.8
Operating income	190.7	186.3	493.2	508.6
Flavor Solutions
Segment Reporting Information [Line Items]
Revenues	751.7	742.4	2,166.9	2,162.3
Operating income excluding special charges	99.8	101.6	273.3	249.6
Income from unconsolidated operations	0.2	0.8	3.6	1.3
Less: Special charges	1.8	1.4	6.8	4.1
Operating income	98.0	100.2	266.5	245.5
Americas
Segment Reporting Information [Line Items]
Revenues	1,228.2	1,209.3	3,522.8	3,492.7
EMEA
Segment Reporting Information [Line Items]
Revenues	315.8	295.4	923.9	909.4
APAC
Segment Reporting Information [Line Items]
Revenues	$ 180.9	$ 175.1	$ 543.2	$ 523.6