v3.26.1
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Parenthetical) (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about property, plant and equipment [line items]      
Right-of-use assets $ 3,030 $ 2,653 $ 2,708
Land and buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Right-of-use assets 451 439 490
Plant and equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Right-of-use assets $ 2,579 $ 2,214 $ 2,218