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Property, plant and equipment (Tables)
 12 Months Ended
Jun. 30, 2020
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 2020
       
At the beginning of the financial year
  
 
7,885
 
 
 
38,174
 
 
 
9,211
 
 
 
11,149
 
 
 
1,622
 
 
 
68,041
 
Impact of adopting IFRS 16
(1)
  
 
754
 
 
 
1,400
 
 
 
–
 
 
 
–
 
 
 
–
 
 
 
2,154
 
Additions
(2)
  
 
115
 
 
 
1,719
 
 
 
684
 
 
 
6,100
 
 
 
218
 
 
 
8,836
 
Remeasurements of index-linked freight contracts
 (3)
  
 
–
 
 
 
733
 
 
 
–
 
 
 
–
 
 
 
–
 
 
 
733
 
Depreciation for the year
  
 
(630
) 
 
 
(5,104
) 
 
 
(294
) 
 
 
–
 
 
 
–
 
 
 
(6,028
) 
Impairments, net of reversals
  
 
(17
) 
 
 
(189
) 
 
 
(288
) 
 
 
–
 
 
 
–
 
 
 
(494
) 
Disposals
  
 
(12
) 
 
 
(22
) 
 
 
–
 
 
 
–
 
 
 
(65
) 
 
 
(99
) 
Transfers and other movements
  
 
292
 
 
 
2,718
 
 
 
(661
) 
 
 
(3,475
) 
 
 
345
 
 
 
(781
) 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
At the end of the financial year
(4)
  
 
8,387
 
 
 
39,429
 
 
 
8,652
 
 
 
13,774
 
 
 
2,120
 
 
 
72,362
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
– Cost
  
 
13,932
 
 
 
97,230
 
 
 
13,736
 
 
 
13,774
 
 
 
2,899
 
 
 
141,571
 
– Accumulated depreciation and impairments
  
 
(5,545
) 
 
 
(57,801
) 
 
 
(5,084
) 
 
 
–
 
 
 
(779
) 
 
 
(69,209
) 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
Net book value – 30 June 2019
       
At the beginning of the financial year
   8,152   40,885   8,974   7,554   1,617   67,182 
Additions
(2)
   5   515   1,023   5,799   418   7,760 
Depreciation for the year
   (585)   (4,885)   (277)   –   –   (5,747) 
Impairments, net of reversals
   (9)   (234)   –   –   (7)   (250) 
Disposals
   (2)   (40)   (5)   –   –   (47) 
Transferred to assets held for sale
   –   –   –   (331)   –   (331) 
Exchange variations taken to reserve
   –   (1)   –   –   –   (1) 
Transfers and other movements
   324   1,934   (504)   (1,873)   (406)   (525) 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
At the end of the financial year
 (4)
   7,885   38,174   9,211   11,149   1,622   68,041 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
– Cost
   12,825   92,090   13,681   11,149   2,404   132,149 
– Accumulated depreciation and impairments
   (4,940)   (53,916)   (4,470)   –   (782)   (64,108) 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
 
 
(1)
 
Refer to note 38 ‘New and amended accounting standards and interpretations’.
 
(2)
 
Includes change in estimates and net foreign exchange gains/(losses) related to the closure and rehabilitation provisions for operating sites. Refer to note 14 ‘Closure and rehabilitation provisions’.
 
(3)
 
Relates to remeasurements of index-linked freight contracts including continuous voyage charters (CVCs). Refer to note 20 ‘Leases’.
 
(4)
 
Includes the carrying value of the Group’s
right-of-use
assets relating to land and buildings and plant and equipment of US$3,047 million (2019: US$492 million relating to finance leases). Refer to note 20 ‘Leases’ for the movement of the
right-of-use
assets during FY2020.
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 and
petroleum interests
  
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