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Equity (Tables)
12 Months Ended
Feb. 15, 2018
Text block1 [abstract]  
Summary of Equity Share Capital

Equity share capital

 

     Number
of shares
millions
     Nominal
value
$m
     Share
premium
$m
     Equity
share
capital
$m
 

Allotted, called up and fully paid

           

At 1 January 2015 (ordinary shares of 15265/329p each)

     248        61        117        178  

Exchange adjustments

     —          (3      (6      (9

At 31 December 2015 (ordinary shares of 15265/329p each)

     248        58        111        169  

Share capital consolidation

     (42      —          —          —    

Exchange adjustments

     —          (10      (18      (28

At 31 December 2016 (ordinary shares of 18318/329p each)

     206        48        93        141  

Share capital consolidation

     (9      —          —          —    

Exchange adjustments

     —          5        8        13  
  

 

 

    

 

 

    

 

 

    

 

 

 

At 31 December 2017 (ordinary shares of 1917/21p each)

     197        53        101        154