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Insurance
 12 Months Ended
Dec. 31, 2023
Insurance [Abstract]  
Insurance
21. Insurance
 
            
   2023
$m
           
   2022
$m
  
At 1 January
      
 
32
 
     
 
25
 
Insurance expenses
      
 
21
 
     
 
9
 
Claims and other amounts paid
      
 
(15
) 
     
 
(2
) 
Impact of discounting and other changes
      
 
(1
) 
     
 
–
 
At 31 December
      
 
37
 
     
 
32
 
Analysed as:
      
 
 
 
     
 
 
 
Current
      
 
12
 
     
 
9
 
Non-current
      
 
25
 
     
 
23
 
 
      
 
37
 
     
 
32
 
Incurred but not reported claims (‘IBNR’)
a
     
 
20
 
     
 
25
 
Reported but not settled claims
      
 
17
 
     
 
7
 
 
      
 
37
 
     
 
32
 
 
a
 
Includes unallocated loss expenses.
Of the total reserves, $19m (2022: $21m) relates to international general liability and $14m (2022: $7m) relates to workers’ compensation. The utilisation of IBNR reserves is dependent on the timing of claims being reported and ultimately being settled; based on historical experience this is expected to be approximately five years (2022: five years). The maximum liabilities of the last five policy years is $49m (2022: $42m). Actual claims have not significantly differed to estimates in the last five years.
 
            
   2023
$m
           
   2022
$m
  
Revenue from insurance activities
      
 
21
 
     
 
15
 
Insurance expenses (inclusive of overhead costs)
      
 
(23
) 
     
 
(11
) 
Insurance result
      
 
(2
) 
     
 
4