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Impairment charges net of reversals - (Tables)
 12 Months Ended
Dec. 31, 2024
Disclosure of impairment loss and reversal of impairment loss [abstract]  
Summary of impairment charges net of reversals 4 Impairment charges net of reversals continued
2024
2023
2022
Note
Pre-tax
amount
US$m
Taxation
US$m
Non-
controlling
interest
US$m
Net
amount
US$m
Pre-tax
amount
US$m
Pre-tax
amount
US$m
Aluminium - Alumina refineries
(461)
(42)
–
(503)
(1,175)
–
Aluminium - Tiwai Point
41
37
–
78
–
–
Aluminium - MRN
(23)
–
–
(23)
–
–
Aluminium – Pacific Aluminium
–
–
–
–
–
(202)
Minerals - Diavik
(118)
32
–
(86)
–
–
Other operations - Simandou
–
–
–
–
239
–
Other operations - Roughrider
–
–
–
–
–
150
Total impairment charges net of reversals
(561)
27
–
(534)
(936)
(52)
Allocated as:
Intangible assets
12
–
231
150
Property, plant and equipment
13
(538)
(1,167)
–
Investment in equity accounted units (EAUs)
–
–
(202)
Share of profit after tax in EAUs
(23)
–
–
Total impairment charges net of reversals
(561)
(936)
(52)
Comprising:
Net impairment (charges)/reversals of
consolidated balances
(538)
(936)
150
Impairment (charges) related to EAUs (pre-tax)
(35)
–
(202)
Total impairment charges net of reversals
(573)
(936)
(52)
Taxation (including related to EAUs)
39
499
–
Non-controlling interests
–
(215)
–
Total impairment charges net of reversals in the
income statement
(534)
(652)
(52)