v3.26.1
Statements of Consolidated Cash Flows (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Reconciliation of cash, cash equivalents, restricted cash, and restricted cash equivalents to the Consolidated Balance Sheets        
Cash and cash equivalents $ 3,228.4 $ 3,347.8 $ 2,680.6  
Restricted cash and restricted cash equivalents included in funds held for clients 9,369.5 [1] 1,706.8 5,518.6 [1]  
Total cash, cash equivalents, restricted cash, and restricted cash equivalents $ 12,597.9 $ 5,054.6 $ 8,199.2 $ 10,086.0
[1] See Note 7 for a reconciliation of restricted cash and restricted cash equivalents in funds held for clients on the Consolidated Balance Sheets.