Consolidated Statements of Stockholders' Equity (Parentheticals) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Pension and OPEB adjustments, tax	$ 1.8	$ 1.6	$ 5.6
Change in fair value of derivatives, tax	$ 0.5	$ 2.8	$ 0.9
Dividends declared, per share (in dollars per share)	$ 1.10	$ 1.02	$ 0.94

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

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