v3.26.1
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year $ 76,457 [1] $ 71,629  
Additions [2] 12,757 11,500  
Remeasurements of index-linked freight contracts [3] 340 (210)  
Depreciation for the year (6,060) (5,429)  
Net impairments for the year (2,406) (171)  
Disposals (11) (20)  
Divestment of subsidiaries and operations (318) (43)  
Transfers and other movements (720) (864)  
At the end of the financial year 80,046 [1] 76,457 [1] $ 71,629
Property, plant and equipment 80,046 [1] 76,457 [1] 71,629
Property, plant and equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net impairments for the year (2,399) [4] (106) [4] (3,833)
Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 151,586    
At the end of the financial year 162,920 151,586  
Property, plant and equipment 162,920 151,586  
Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (75,129)    
At the end of the financial year (82,874) (75,129)  
Property, plant and equipment (82,874) (75,129)  
Land and buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 7,411 [1] 7,565  
Additions [2] 87 28  
Remeasurements of index-linked freight contracts [3] 0 0  
Depreciation for the year (581) (578)  
Net impairments for the year [4] 0 (7)  
Disposals (5) (1)  
Divestment of subsidiaries and operations (5) 0  
Transfers and other movements 926 404  
At the end of the financial year 7,833 [1] 7,411 [1] 7,565
Property, plant and equipment 7,833 [1] 7,411 [1] 7,565
Land and buildings [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 15,617    
At the end of the financial year 16,607 15,617  
Property, plant and equipment 16,607 15,617  
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (8,206)    
At the end of the financial year (8,774) (8,206)  
Property, plant and equipment (8,774) (8,206)  
Plant and equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 36,553 [1] 34,504  
Additions [2] 2,265 1,653  
Remeasurements of index-linked freight contracts [3] 340 (210)  
Depreciation for the year (5,130) (4,441)  
Net impairments for the year [4] (99) (76)  
Disposals (4) (19)  
Divestment of subsidiaries and operations (144) (1)  
Transfers and other movements 6,285 5,143  
At the end of the financial year 40,066 [1] 36,553 [1] 34,504
Property, plant and equipment 40,066 [1] 36,553 [1] 34,504
Plant and equipment [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 93,385    
At the end of the financial year 101,437 93,385  
Property, plant and equipment 101,437 93,385  
Plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (56,832)    
At the end of the financial year (61,371) (56,832)  
Property, plant and equipment (61,371) (56,832)  
Other mineral assets [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 12,237 [1] 12,227  
Additions [2] 1,129 1,066  
Remeasurements of index-linked freight contracts [3] 0 0  
Depreciation for the year (349) (410)  
Net impairments for the year [4] 0 (23)  
Disposals 0 0  
Divestment of subsidiaries and operations (162) (42)  
Transfers and other movements (562) (581)  
At the end of the financial year 12,293 [1] 12,237 [1] 12,227
Property, plant and equipment 12,293 [1] 12,237 [1] 12,227
Other mineral assets [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 20,359    
At the end of the financial year 20,756 20,359  
Property, plant and equipment 20,756 20,359  
Other mineral assets [member] | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (8,122)    
At the end of the financial year (8,463) (8,122)  
Property, plant and equipment (8,463) (8,122)  
Assets under construction [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 20,046 [1] 17,097  
Additions [2] 9,215 8,703  
Remeasurements of index-linked freight contracts [3] 0 0  
Depreciation for the year 0 0  
Net impairments for the year [4] (2,300) 0  
Disposals (2) 0  
Divestment of subsidiaries and operations (7) 0  
Transfers and other movements (7,318) (5,754)  
At the end of the financial year 19,634 [1] 20,046 [1] 17,097
Property, plant and equipment 19,634 [1] 20,046 [1] 17,097
Assets under construction [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 22,002    
At the end of the financial year 23,890 22,002  
Property, plant and equipment 23,890 22,002  
Assets under construction [member] | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (1,956)    
At the end of the financial year (4,256) (1,956)  
Property, plant and equipment (4,256) (1,956)  
Exploration and evaluation [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 210 [1] 236  
Additions [2] 61 50  
Remeasurements of index-linked freight contracts [3] 0 0  
Depreciation for the year 0 0  
Net impairments for the year [4] 0 0  
Disposals 0 0  
Divestment of subsidiaries and operations 0 0  
Transfers and other movements (51) (76)  
At the end of the financial year 220 [1] 210 [1] 236
Property, plant and equipment 220 [1] 210 [1] $ 236
Exploration and evaluation [member] | Cost [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year 223    
At the end of the financial year 230 223  
Property, plant and equipment 230 223  
Exploration and evaluation [member] | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
At the beginning of the financial year (13)    
At the end of the financial year (10) (13)  
Property, plant and equipment $ (10) $ (13)  
[1] Includes the carrying value of the Group’s right-of-use assets relating to land and buildings and plant and equipment of US$3,030 million (2025: US$2,653 million). Refer to note 22 'Leases' for the movement of the right-of-use assets.
[2] Includes change in estimates and net foreign exchange gains/(losses) related to the closure and rehabilitation provisions for operating sites. Refer to note 15 'Closure and rehabilitation provisions'.
[3] Relates to remeasurements of index-linked freight contracts including continuous voyage charters (CVCs). Refer to note 22 'Leases'.
[4] Refer to note 13 'Impairment of non-current assets' for information on impairments.