XML 395 R149.htm IDEA: XBRL DOCUMENT v3.24.2.u1
Net borrowings - Bonds issued and repaid (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2022
Schedule of bonds issued and repaid [line items]      
Repaid $ (1,667) $ (1,650) [1] $ (2,060) [1]
Bonds issued and repaid 558 887 911
€ denominated      
Schedule of bonds issued and repaid [line items]      
Issued 535 548 1,800
Repaid (1,167) 0 (1,060)
£ denominated      
Schedule of bonds issued and repaid [line items]      
Issued 0 0 1,171
$ denominated      
Schedule of bonds issued and repaid [line items]      
Issued 1,690 1,989 0
Repaid $ (500) $ (1,650) $ (1,000)
[1] (1) See pages 238-240 for an explanation under Accounting information and policies.