Consolidated Statement Of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Non-Controlling Interests [Member]	Nonvoting Common Stock Common Stock
Balance, Shares at Nov. 30, 2017		10.0				121.0
Balance, Value at Nov. 30, 2017	$ 2,570.9	$ 1,672.9	$ 1,166.5	$ (279.5)	$ 11.0
Comprehensive income:
Net income	422.6		422.6
Net income attributable to non-controlling interest	0.9				0.9
Other comprehensive income (loss), net of tax	76.4			76.1	0.3
Currency translation adjustments	62.0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	4.3	$ 4.3
Shares purchased and retired, Shares		(0.1)				(0.1)
Shares purchased and retired, Value	(21.5)	$ (3.8)	(17.7)
Equal exchange, shares		(0.3)				0.3
Balance, Shares at Feb. 28, 2018		9.9				121.3
Balance, Value at Feb. 28, 2018	3,072.4	$ 1,692.2	1,592.3	(224.3)	12.2
Comprehensive income:
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	20.9		20.9	(20.9)
Stock Issued During Period, Shares, New Issues		0.3				0.1
Stock Issued During Period, Value, New Issues	18.8	$ 18.8
Balance, Shares at Nov. 30, 2018		9.6				122.5
Balance, Value at Nov. 30, 2018	3,182.2	$ 1,770.6	1,760.2	(359.9)	11.3
Comprehensive income:
Net income	148.0		148.0
Net income attributable to non-controlling interest	0.5				0.5
Other comprehensive income (loss), net of tax	32.4			32.5	(0.1)
Currency translation adjustments	36.7
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	6.7	$ 6.7
Shares purchased and retired, Shares		0.0				(0.2)
Shares purchased and retired, Value	(34.2)	$ (3.9)	(30.3)
Equal exchange, shares		(0.1)				0.1
Balance, Shares at Feb. 28, 2019		9.6				122.4
Balance, Value at Feb. 28, 2019	3,342.7	$ 1,780.5	$ 1,877.9	$ (327.4)	$ 11.7
Comprehensive income:
Stock Issued During Period, Shares, New Issues		0.1				0.0
Stock Issued During Period, Value, New Issues	$ 7.1	$ 7.1