Commitments and Contingencies - Multiemployer Pension and Defined Contribution Plans Narrative (Details) - Building Service 32BJ - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Pension Plans
Multiemployer Plans [Line Items]
Plan contributions	$ 317.9	$ 305.7	$ 290.1
Health Plans
Multiemployer Plans [Line Items]
Plan contributions	$ 1,900.0	$ 1,600.0	$ 1,500.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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