Business Segments (Detail) - USD ($)	3 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Segment Reporting Information [Line Items]
Revenues	$ 1,873,900,000	$ 1,605,500,000
Cost of goods sold	1,165,000,000	1,001,500,000
Selling, general and administrative expense	456,300,000	378,800,000
Income from unconsolidated operations	19,200,000	18,500,000
Less: Special charges	40,100,000	0
Operating income	227,500,000	225,200,000
Income from unconsolidated operations	886,000,000.0	18,500,000
Operating Segments
Segment Reporting Information [Line Items]
Revenues	1,873,900,000	1,605,500,000
Cost of goods sold excluding special charges	1,150,000,000
Cost of goods sold	1,165,000,000	1,001,500,000
Selling, general and administrative expense	456,300,000	378,800,000
Operating income excluding special charges	267,600,000
Income from unconsolidated operations	19,200,000	18,500,000
Operating income	227,500,000	225,200,000
Income from unconsolidated operations excluding gain on remeasurement of previously held equity interest	19,200,000
Gain on remeasurement of previously held equity interest	866,800,000
Income from unconsolidated operations	886,000,000.0
Cost Of Products And Service Sold, Excluding Special Charges	1,150,000,000
Cost Of Goods Sold, Special Charges	15,000,000.0	0
Operating income excluding special charges	267,600,000
Special Charges, Including Restructuring	40,100,000
Consumer
Segment Reporting Information [Line Items]
Less: Special charges	32,700,000	0
Consumer | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1,145,000,000	919,200,000
Cost of goods sold excluding special charges	638,800,000
Cost of goods sold	652,300,000	513,800,000
Selling, general and administrative expense	326,600,000	258,700,000
Income from unconsolidated operations	15,800,000	15,900,000
Operating income	146,900,000	146,700,000
Income from unconsolidated operations excluding gain on remeasurement of previously held equity interest	15,800,000
Gain on remeasurement of previously held equity interest	780,100,000
Income from unconsolidated operations	795,900,000
Cost Of Products And Service Sold, Excluding Special Charges	638,800,000
Cost Of Goods Sold, Special Charges	13,500,000
Operating income excluding special charges	179,600,000
Special Charges, Including Restructuring	32,700,000
Flavor Solutions
Segment Reporting Information [Line Items]
Less: Special charges	7,400,000	0
Flavor Solutions | Operating Segments
Segment Reporting Information [Line Items]
Revenues	728,900,000	686,300,000
Cost of goods sold excluding special charges	511,200,000
Cost of goods sold	512,700,000	487,700,000
Selling, general and administrative expense	129,700,000	120,100,000
Income from unconsolidated operations	3,400,000	2,600,000
Operating income	80,600,000	78,500,000
Income from unconsolidated operations excluding gain on remeasurement of previously held equity interest	3,400,000
Gain on remeasurement of previously held equity interest	86,700,000
Income from unconsolidated operations	90,100,000
Cost Of Products And Service Sold, Excluding Special Charges	511,200,000
Cost Of Goods Sold, Special Charges	1,500,000
Operating income excluding special charges	88,000,000.0
Special Charges, Including Restructuring	7,400,000
Americas
Segment Reporting Information [Line Items]
Revenues	1,339,600,000	1,118,300,000
EMEA
Segment Reporting Information [Line Items]
Revenues	335,700,000	299,500,000
APAC
Segment Reporting Information [Line Items]
Revenues	$ 198,600,000	$ 187,700,000