XML 293 R20.htm IDEA: XBRL DOCUMENT v3.22.0.1
Earnings/(loss) per ordinary share
 12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Earnings/(loss) per ordinary share
10. Earnings/(loss) per ordinary share
 
         
          2021
         
         2020
         
         2019
  
Basic earnings/(loss) per ordinary share
       
 
 
 
       
 
 
 
       
 
 
 
Profit/(loss) available for equity holders ($m)
       
 
266
 
       
 
(260
) 
       
 
385
 
Basic weighted average number of ordinary shares (millions)
       
 
183
 
       
 
182
 
       
 
183
 
Basic earnings/(loss) per ordinary share (cents)
       
 
145.4
 
       
 
(142.9
) 
       
 
210.4
 
             
Diluted earnings/(loss) per ordinary share
       
 
 
 
       
 
 
 
       
 
 
 
Profit/(loss) available for equity holders ($m)
       
 
266
 
       
 
(260
) 
       
 
385
 
Diluted weighted average number of ordinary shares (millions)
       
 
184
 
       
 
182
 
       
 
184
 
Diluted earnings/(loss) per ordinary share (cents)
       
 
144.6
 
       
 
(142.9
) 
       
 
209.2
 
             
Diluted weighted average number of ordinary shares is calculated as:
       
 
 
 
       
 
 
 
       
 
 
 
Basic weighted average number of ordinary shares (millions)
       
 
183
 
       
 
182
 
       
 
183
 
Dilutive potential ordinary shares (millions)
       
 
1
 
       
 
–
 
       
 
1
 
 
       
 
184
 
       
 
182
 
       
 
184
 
The effect of the notional exercise of outstanding ordinary share awards was anti-dilutive in 2020 and therefore was not included in the diluted earnings per share calculation.