Other (Income)/Expense, Net (Tables)

6 Months Ended

Dec. 31, 2025

Other Income and Expenses [Abstract]

Schedule of Other (Income)/Expense, Net

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2025		2024		2025		2024
Interest income on corporate funds	$	(96.8)	$	(83.9)	$	(198.3)	$	(175.5)
Realized (gains)/losses on available-for-sale securities, net	0.3		0.6		(1.2)		0.8
Gain on sale of assets	—		—		—		(2.4)
Non-service components of pension income, net (see Note 12)	(7.1)		(7.8)		(14.2)		(15.7)
Net (gain)/loss on ADP Ventures' investments	(2.2)		—		(2.2)		—
Other (income)/loss, net	$	(105.8)	$	(91.1)	$	(215.9)	$	(192.8)