Consolidated Statements of Changes in Equity (Parentheticals) - $ / shares	12 Months Ended
May 31, 2025	May 31, 2024
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 9.27	$ 11.75

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

No definition available.

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