Accounting Policies - Adjustments for Adoption in Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Feb. 28, 2018	Aug. 31, 2019	Aug. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales	$ 1,329.2	$ 1,318.2		$ 3,862.6	$ 3,834.9
Cost of goods sold	789.3	795.7		2,347.3	2,346.6
Gross profit	(539.9)	(522.5)		(1,515.3)	(1,488.3)
Selling, general and administrative expense	(278.7)	(283.7)		(839.9)	(852.7)
Operating income	253.5	229.9		658.5	599.6
Other income, net	$ 6.9	4.8		$ 19.3	13.5
Revenue Recognition (1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of goods sold			$ 4.2
Gross profit			4.2
Selling, general and administrative expense			$ 4.2
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales		1,345.3			3,909.7
Cost of goods sold		750.4			2,219.6
Gross profit		(594.9)			(1,690.1)
Selling, general and administrative expense		(353.0)			(1,045.7)
Operating income		233.0			608.4
Other income, net		1.7			4.7
Adjustment | Revenue Recognition (1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales		(27.1)			(74.8)
Cost of goods sold		44.7			125.2
Gross profit		71.8			200.0
Selling, general and administrative expense		71.8			200.0
Operating income		0.0			0.0
Other income, net		0.0			0.0
Adjustment | Pension
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales		0.0			0.0
Cost of goods sold		0.6			1.8
Gross profit		0.6			1.8
Selling, general and administrative expense		(2.5)			(7.0)
Operating income		(3.1)			(8.8)
Other income, net		$ 3.1			$ 8.8