Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended	6 Months Ended
Aug. 31, 2023	Aug. 31, 2022	Nov. 30, 2023	Nov. 30, 2022
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 2.92	$ 2.19	$ 2.93	$ 2.39

Aggregate dividends declared during the period for each share of preferred stock outstanding.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration