Business Segments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2025	May 31, 2024
Segment Reporting Information [Line Items]
Revenues	$ 1,659.5	$ 1,643.2	$ 3,265.0	$ 3,245.9
Operating income excluding special charges	258.6	235.9	483.8	473.6
Income from unconsolidated operations	19.7	16.8	37.1	38.1
Less: Special charges	12.8	1.8	12.8	6.0
Operating income	245.8	234.1	471.0	467.6
Consumer
Segment Reporting Information [Line Items]
Revenues	930.6	904.5	1,849.8	1,826.0
Operating income excluding special charges	163.6	149.3	310.3	325.6
Income from unconsolidated operations	17.6	16.1	33.7	37.6
Less: Special charges	7.8	1.5	7.8	3.3
Operating income	155.8	147.8	302.5	322.3
Flavor Solutions
Segment Reporting Information [Line Items]
Revenues	728.9	738.7	1,415.2	1,419.9
Operating income excluding special charges	95.0	86.6	173.5	148.0
Income from unconsolidated operations	2.1	0.7	3.4	0.5
Less: Special charges	5.0	0.3	5.0	2.7
Operating income	90.0	86.3	168.5	145.3
Americas
Segment Reporting Information [Line Items]
Revenues	1,176.3	1,166.4	2,294.6	2,283.5
EMEA
Segment Reporting Information [Line Items]
Revenues	308.6	307.3	608.1	614.0
APAC
Segment Reporting Information [Line Items]
Revenues	$ 174.6	$ 169.5	$ 362.3	$ 348.4