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	719.4		719.4
Net income attributable to non-controlling interest	3.6				3.6
Other comprehensive income (loss), net of tax	(58.0)			(53.7)	(4.3)
Currency translation adjustments	(77.1)
Dividends	(136.7)		(136.7)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	21.6	$ 21.6
Shares purchased and retired, Shares		(0.2)				(0.2)
Shares purchased and retired, Value	(59.4)	$ (13.0)	(46.4)
Equal exchange, shares		(0.9)				0.9
Balance, Shares at Aug. 31, 2018		9.9				121.8
Balance, Value at Aug. 31, 2018	3,112.0	$ 1,732.1	1,723.7	(354.1)	10.3
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		1.0				0.1
Stock Issued During Period, Value, New Issues	50.6	$ 50.6
Balance, Shares at May. 31, 2018		10.0				121.3
Balance, Value at May. 31, 2018	3,040.3	$ 1,705.3	1,631.6	(308.4)	11.8
Comprehensive income:
Net income	173.5		173.5
Net income attributable to non-controlling interest	1.6				1.6
Other comprehensive income (loss), net of tax	(48.8)			(45.7)	(3.1)
Currency translation adjustments	(50.7)
Dividends	(68.4)		(68.4)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	5.5	$ 5.5
Shares purchased and retired, Shares		(0.1)				0.0
Shares purchased and retired, Value	(18.8)	$ (5.8)	(13.0)
Equal exchange, shares		(0.5)				0.5
Balance, Shares at Aug. 31, 2018		9.9				121.8
Balance, Value at Aug. 31, 2018	3,112.0	$ 1,732.1	1,723.7	(354.1)	10.3
Comprehensive income:
Stock Issued During Period, Shares, New Issues		0.5				0.0
Stock Issued During Period, Value, New Issues	27.1	$ 27.1
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	489.3		489.3
Net income attributable to non-controlling interest	1.5				1.5
Other comprehensive income (loss), net of tax	(69.3)			(68.4)	(0.9)
Currency translation adjustments	(66.8)
Dividends	(151.1)		(151.1)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	30.6	$ 30.6
Shares purchased and retired, Shares		(0.2)				(0.4)
Shares purchased and retired, Value	(91.9)	$ (13.3)	(78.6)
Equal exchange, shares		(1.5)				1.5
Balance, Shares at Aug. 31, 2019		9.3				123.6
Balance, Value at Aug. 31, 2019	3,480.6	$ 1,877.2	2,019.8	(428.3)	11.9
Comprehensive income:
Stock Issued During Period, Shares, New Issues		1.4				0.0
Stock Issued During Period, Value, New Issues	89.3	$ 89.3
Balance, Shares at May. 31, 2019		9.5				123.0
Balance, Value at May. 31, 2019	3,382.6	$ 1,835.0	1,918.6	(382.7)	11.7
Comprehensive income:
Net income	191.9		191.9
Net income attributable to non-controlling interest	0.3				0.3
Other comprehensive income (loss), net of tax	(45.7)			(45.6)	(0.1)
Currency translation adjustments	(44.9)
Dividends	(75.6)		(75.6)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	7.8	$ 7.8
Shares purchased and retired, Shares		(0.1)				0.0
Shares purchased and retired, Value	(18.3)	$ (3.2)	(15.1)
Equal exchange, shares		(0.6)				0.6
Balance, Shares at Aug. 31, 2019		9.3				123.6
Balance, Value at Aug. 31, 2019	3,480.6	$ 1,877.2	$ 2,019.8	$ (428.3)	$ 11.9
Comprehensive income:
Stock Issued During Period, Shares, New Issues		0.5				0.0
Stock Issued During Period, Value, New Issues	$ 37.6	$ 37.6