Supplemental Financial Statement Data (Narrative) (Details) - $ / shares	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
Supplemental Financial Statement Data [Abstract]
Dividends paid per share (usd per share)	$ 1.36	$ 1.24	$ 1.14
Common Stock, Dividends, Per Share, Declared	$ 1.39	$ 1.27	$ 1.17