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Property, plant and equipment (Tables)
 12 Months Ended
Jun. 30, 2023
Text block [abstract]  
Summary of Property, Plant and Equipment
    
Land and
buildings
    
Plant and
equipment
    
Other

mineral

assets
    
Assets under
construction
    
Exploration
and
evaluation
    
Total
  
    
US$M
    
US$M
    
US$M
    
US$M
    
US$M
    
US$M
  
Net book value – 30 June 2023
             
At the beginning of the financial year
   
 
8,079
 
  
 
35,500
 
  
 
8,494
 
  
 
9,031
 
  
 
191
 
  
 
61,295
 
Additions
1
     
194
      
1,024
      
842
      
6,332
      
56
      
8,448
  
Acquisition of subsidiaries and operations
2
     
88
      
2,256
      
4,612
      
720
      
–
      
7,676
  
Remeasurements of index-linked freight contracts
3
     
–
      
53
      
–
      
–
      
–
      
53
  
Depreciation for the year
     
(586
)
 		    
(4,156
)
 		    
(225
)
 		    
–
      
–
      
(4,967
)
 
Impairments for the year
4
     
–
      
(73
)
 		    
–
      
–
      
–
      
(73
)
 
Disposals
     
(2
)
 		    
(6
)
 		    
–
      
–
      
–
      
(8
)
 
Transfers and other movements
     
367
      
2,056
      
(419
)
 		    
(2,602
)
 		    
(8
)
 		    
(606
)
 
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
At the end of the financial year
5
     
8,140
      
36,654
      
13,304
      
13,481
      
239
      
71,818
  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
– Cost
     
15,258
      
85,394
      
19,420
      
14,245
      
1,029
      
135,346
  
– Accumulated depreciation and impairments
     
(7,118
)
 		    
(48,740
)
 		    
(6,116
)
 		    
(764
)
 		    
(790
)
 		    
(63,528
)
 
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
Net book value – 30 June 2022
             
At the beginning of the financial year
      8,072       44,682       8,941       10,432       1,686       73,813  
Additions
1
      41       1,935       792       5,872       137       8,777  
Remeasurements of index-linked freight contracts
3
      –       (369 )      –       –       –       (369 ) 
Depreciation for the year
      (663 )      (5,564 )      (276 )      –       –       (6,503 ) 
Impairments for the year
4
      (14 )      (499 )      (2 )      –       –       (515 ) 
Disposals
      (3 )      (22 )      –       –       –       (25 ) 
Divestment and demerger of subsidiaries and operations
6
      (448 )      (8,007 )      (545 )      (3,549 )      (842 )      (13,391 ) 
Transfers and other movements
      1,094       3,344       (416 )      (3,724 )      (790 )      (492 ) 
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
At the end of the financial year
5
      8,079       35,500       8,494       9,031       191       61,295  
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
– Cost
      14,823       81,218       14,353       9,755       981       121,130  
– Accumulated depreciation and impairments
      (6,744 )      (45,718 )      (5,859 )      (724 )      (790 )      (59,835 ) 
  
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
  
 
 
1
 
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’.
 
2
 
Relates to the acquisition of OZL on 2 May 2023. Refer to note 29 ‘Business combinations’ for more information.
 
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.
 
5
 
Includes the carrying value of the Group’s
right-of-use
assets relating to land and buildings and plant and equipment of US$2,809 million (2022: US$2,361 million). Refer to note 22 ‘Leases’ for the movement of the
right-of-use
assets.
 
6
 
BMC and Petroleum were disposed in May 2022 and June 2022 respectively. Refer to notes 3 ‘Exceptional items’ and 28 ‘Discontinued operations’ for more information.
Summary of Principal Depreciation Methods and Rates Applied to Major Asset Categories The table below summarises the principal depreciation methods and rates applied to major asset categories by the Group.
 
  
Category
   
Buildings
   
Plant and
equipment
   
Mineral rights
   
Capitalised exploration,
evaluation and
development
expenditure
  
 
 
Typical depreciation methodology
    SL    SL    UoP    UoP  
 
Depreciation rate
   
25-50
years		   
3-30
years		    Based on the rate of depletion of reserves    Based on the rate of depletion of reserves