Corporate Investments And Funds Held For Clients - Schedule Of Investment Of Funds Held For Clients (Details) - USD ($) $ in Millions		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Marketable Securities [Line Items]
Restricted cash and cash equivalents held to satisfy client funds obligations	[1]	$ 21,346.7	$ 10,568.0	$ 5,145.1
Total funds held for clients		49,569.2	34,905.8
Current
Marketable Securities [Line Items]
Debt securities, available-for-sale, restricted		4,263.1	3,743.3
Long-term
Marketable Securities [Line Items]
Debt securities, available-for-sale, restricted		$ 23,959.4	$ 20,594.5

[1] See Note 4 for a reconciliation of restricted cash and restricted cash equivalents in funds held for clients on the Consolidated Balance Sheets.