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Provisions (Tables)
12 Months Ended
Dec. 31, 2024
Provisions [abstract]  
Summary of Information About Provisions

 
  
  Restoration
1
US$m
 
 
  Employee
benefits
US$m
 
  
Other
US$m
 
  
Total
  US$m
 
 
 
 
 
 
Year ended 31 December 2024
  
 
  
  
At 1 January 2024
  
 
7,154
 
 
 
522
 
  
 
281
 
  
 
7,957
 
Acquisitions through business combination and asset acquisitions
2
  
 
16
 
 
 
104
 
  
 
48
 
  
 
168
 
Change in provision
  
 
(936
 
 
28
 
  
 
37
 
  
 
(871
Unwinding of present value discount
  
 
292
 
 
 
-
 
  
 
1
 
  
 
293
 
Carrying amount at 31 December 2024
  
 
6,526
 
 
 
654
 
  
 
367
 
  
 
7,547
 
Current
  
 
753
 
 
 
402
 
  
 
167
 
  
 
1,322
 
Non-current
  
 
5,773
 
 
 
252
 
  
 
200
 
  
 
6,225
 
 
 
 
 
 
Net carrying amount
  
 
6,526
 
 
 
654
 
  
 
367
 
  
 
7,547
 
Year ended 31 December 2023
  
 
  
  
At 1 January 2023
  
 
6,253
 
 
 
517
 
  
 
409
 
  
 
7,179
 
Change in provision
  
 
664
 
 
 
5
 
  
 
(128)
 
  
 
541
 
Unwinding of present value discount
  
 
237
 
 
 
-
 
  
 
-
 
  
 
237
 
 
 
 
 
 
Carrying amount at 31 December 2023
  
 
7,154
 
 
 
522
 
  
 
281
 
  
 
7,957
 
 
 
 
 
 
Current
  
 
1,011
 
 
 
351
 
  
 
144
 
  
 
1,506
 
Non-current
  
 
6,143
 
 
 
171
 
  
 
137
 
  
 
6,451
 
 
 
 
 
 
Net carrying amount
  
 
7,154
 
 
 
522
 
  
 
281
 
  
 
7,957
 
 
1.
2
024 change in provision is due to provisions used of
$887 
million, changes in macroeconomic factors
increasing the provisions by
$647 million, offset by changes in estimates of $598
 million. Changes in estimates are due to
new activities, revisions to cost and removal scope assumptions
 and
rate changes supported by most recent estimates
and
benchmarks. 
2.
Refer to Note B.5 for details of business combination and Note B.7 for details of asset acquisitions.