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Other investments (Tables)
12 Months Ended
Dec. 31, 2024
Financial Instruments [Abstract]  
Schedule of other investments
$ million
2024
2023
Current
Non-current
Current
Non-current
Equity investmentsa
1,095
1,177
Contingent consideration
55
136
754
939
Other
110
61
89
73
165
1,292
843
2,189
aThe majority of equity investments are unlisted.