Earnings Per Share and Stock Issuances - Common Stock Activity (Details) - shares shares in Millions	3 Months Ended	9 Months Ended
Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018
Stock Options And Restricted Stock Units
Employee Stock Purchase Plan [Line Items]
Shares issued, net of shares withheld for taxes, under stock options, RSUs, LTPP and employee stock purchase plans	0.5	0.5	1.3	1.0
Share Repurchase Program
Employee Stock Purchase Plan [Line Items]
Shares repurchased under the stock repurchase program	0.1	0.1	0.5	0.4

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	na
Period Type:	duration