Pension and Other Postretirement Benefits - Narrative (Details) - Pension Plans - USD ($) $ in Millions	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contributions	$ 58.5	$ 4.9
Expected contributions for next fiscal year	$ 6.0

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Balance Type:	debit
Period Type:	duration