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Summary Of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Nov. 30, 2020	Aug. 31, 2020	May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2018	Dec. 01, 2019
Summary Of Significant Accounting Policies [Line Items]
Sales allowances	$ 183.3				$ 137.2				$ 183.3	$ 137.2
Operating Lease, Right-of-Use Asset	136.8								$ 136.8
Useful life									10 years
Capitalized software	116.0				76.4				$ 116.0	76.4
Research and development expense									68.6	67.3	$ 69.4
Marketing and Advertising Expense									230.3	214.6	218.7
Advertising expense									174.8	150.8	147.2
Revenues	1,557.9	$ 1,430.3	$ 1,401.1	$ 1,212.0	1,484.8	$ 1,329.2	$ 1,301.9	$ 1,231.5	5,601.3	5,347.4	5,302.8
Cost of Goods and Services Sold									3,300.9	3,202.1	3,209.5
Selling, general and administrative expense									1,281.6	1,166.8	1,163.4
Operating income	274.9	273.0	257.4	194.2	299.2	253.5	208.1	196.9	999.5	957.7	891.1
Other income, net									17.6	26.7	24.8
Operating Lease, Liability	140.8								140.8
Gross profit	660.7	$ 590.3	$ 579.5	$ 469.9	630.0	$ 539.9	$ 508.5	$ 466.9	$ 2,300.4	2,145.3	2,093.3
Minimum [Member] | Headquarters building [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)									20 years
Minimum [Member] | Machinery, Equipment And Computer Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)									3 years
Minimum [Member] | Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life									3 years
Maximum [Member] | Headquarters building [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)									50 years
Maximum [Member] | Machinery, Equipment And Computer Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives (in years)									12 years
Maximum [Member] | Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life									13 years
Accounting Standards Update 2017-07 [Member]
Summary Of Significant Accounting Policies [Line Items]
Other income, net									$ 10.0	17.7	12.2
Accounting Standards Update 2016-02 [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating Lease, Right-of-Use Asset												$ 136.5
Operating Lease, Liability												$ 140.0
Construction in Progress [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized software	$ 86.7				$ 44.9				86.7	44.9
Americas [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues									3,974.9	3,711.3	3,627.5
EMEA [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues									1,046.7	986.1	1,021.1
Asia Pacific [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues									$ 579.7	$ 650.0	$ 654.2

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