UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.340	$ 0.305	$ 0.985	$ 0.885
Dividends declared per preferred share (in dollars per share)			$ 0.10	$ 0.10