v3.26.1
Net Debt - Summary of Cash and Cash Equivalents, Net of Overdrafts (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Cash and cash equivalents if different from statement of financial position [abstract]        
Total cash and cash equivalents $ 18,532 $ 11,894 $ 12,501  
Bank overdrafts and short-term borrowings 0 (1) (3)  
Total cash and cash equivalents, net of overdrafts $ 18,532 $ 11,893 $ 12,498 $ 12,423