Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Provision for income taxes from continuing operations, percent	22.50%	22.70%	22.50%
Undistributed earnings of foreign subsidiaries	$ 53.0
Deferred tax assets, operating loss carryforwards	34.1	$ 46.3
Valuation allowance	18.9	13.4
Income taxes paid	856.8	973.7	$ 677.1
Unrecognized tax benefits	98.1	99.9	62.3	$ 54.2
Unrecognized tax benefits that would impact effective tax rate	68.1	68.5	49.9
Unrecognized tax benefits, interest on income taxes expense	3.5	10.8	$ 1.6
Unrecognized tax benefits, income tax penalties expense		0.3
Unrecognized tax benefits, interest on income taxes accrued	21.9	19.2
Unrecognized tax benefits, income tax penalties accrued	0.3
Tax settlements future impact potential on earnings maximum	2.0
Max expected cash payment on tax settlements	15.0
Other Assets
Long-term deferred tax assets	157.4	48.3
Foreign Tax Authority
Deferred tax assets, operating loss carryforwards	55.1
Deferred tax assets, operating loss carryforwards, subject to expiration	1.5
Operating loss carry forwards not subject to expiration	53.6
Domestic Tax Authority
Operating loss carryforwards	23.8
State and Local Jurisdiction
Operating loss carryforwards	204.2
Income Taxes Payable
Unrecognized tax benefits, interest on income taxes accrued	$ 4.5	$ 3.9