Segment Information (Summary Of Percentage Of License Revenue By Product Segment) (Details)	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009
Revenue from External Customers by Products and Services [Line Items]
Total license revenue	100.00%	100.00%	100.00%
SOA And Core Infrastructure [Member]
Revenue from External Customers by Products and Services [Line Items]
Total license revenue	56.00%	62.00%	62.00%
Business Optimization [Member]
Revenue from External Customers by Products and Services [Line Items]
Total license revenue	33.00%	27.00%	25.00%
Process Automation And Collaboration [Member]
Revenue from External Customers by Products and Services [Line Items]
Total license revenue	11.00%	11.00%	13.00%