Stock-Based Compensation-Summary of Stock Option Activity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
Aug. 31, 2012	Aug. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period, Number of Shares	6.6	7.4
Granted, Number of Shares	0.8	0.9
Exercised, Number of Shares	1.7	1.4
Outstanding at beginning of period, Number of Shares	5.7	6.9
Excercisable at end of the period, Number of Shares	3.4	4.5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period, Weighted-Average Exercise Price	$ 34.98	$ 32.01
Granted, Weighted-Average Exercise Price	$ 54.24	$ 47.40
Exercised, Weighted-Average Exercise Price	$ 30.41	$ 29.28
Outstanding at beginning of period, Weighted-Average Exercise Price	$ 39.31	$ 34.77
Exercisable at end of the period, Weighted-Average Exercise Price	$ 34.78	$ 32.10

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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