v3.26.1
Leases - Movement in right-of-use assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Disclosure of quantitative information about right-of-use assets [line items]    
Beginning balance $ 655 $ 686
Exchange differences (10) 23
Additions 190 156
Reclassification within property, plant and equipment   (79)
Reclassification to assets held for sale (16) (5)
Depreciation (151) (126)
Ending balance 668 655
Land and buildings    
Disclosure of quantitative information about right-of-use assets [line items]    
Beginning balance 454 444
Exchange differences (3) 12
Additions 143 73
Reclassification within property, plant and equipment   0
Reclassification to assets held for sale (9) (1)
Depreciation (88) (74)
Ending balance 497 454
Plant and equipment    
Disclosure of quantitative information about right-of-use assets [line items]    
Beginning balance 201 242
Exchange differences (7) 11
Additions 47 83
Reclassification within property, plant and equipment   (79)
Reclassification to assets held for sale (7) (4)
Depreciation (63) (52)
Ending balance $ 171 $ 201