Business Segments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 1,401.1	$ 1,301.9	$ 2,613.1	$ 2,533.4
Operating income	257.4	208.1	451.6	405.0
Less: Special charges	2.9	7.1	3.9	9.2
Operating income excluding special charges	260.3	215.2	455.5	414.2
Income from unconsolidated operations	10.2	9.5	20.6	19.6
Consumer
Segment Reporting Information [Line Items]
Revenues	962.6	764.1	1,662.1	1,509.0
Operating income	229.1	132.9	348.1	266.7
Less: Special charges	2.5	4.9	3.1	6.4
Operating income excluding special charges	231.6	137.8	351.2	273.1
Income from unconsolidated operations	8.4	7.5	16.2	15.4
Flavor Solutions
Segment Reporting Information [Line Items]
Revenues	438.5	537.8	951.0	1,024.4
Operating income	28.3	75.2	103.5	138.3
Less: Special charges	0.4	2.2	0.8	2.8
Operating income excluding special charges	28.7	77.4	104.3	141.1
Income from unconsolidated operations	1.8	2.0	4.4	4.2
Americas [Member]
Segment Reporting Information [Line Items]
Revenues	1,025.4	896.1	1,845.0	1,703.1
Europe Middle East And Africa [Member]
Segment Reporting Information [Line Items]
Revenues	243.7	249.4	494.0	492.2
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenues	$ 132.0	$ 156.4	$ 274.1	$ 338.1