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Intangible assets - pre-publication (Tables)
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Summary of Intangible Assets Pre-publication
 
All figures in £ millions
  
2019
 
  
2018
 
Cost
  
  
At beginning of year
  
 
2,096
 
  
 
1,854
 
Exchange differences
  
 
(66
) 
  
 
70
 
Additions
  
 
306
 
  
 
328
 
Disposals
  
 
(82
) 
  
 
(158
) 
Transfer from property, plant and equipment
  
 
9
 
  
 
2
 
Transfer from intangible assets
  
 
12
 
  
 
—  
 
  
 
 
   
 
 
 
At end of year
  
 
2,275
 
  
 
2,096
 
  
 
 
   
 
 
 
Amortisation
  
  
At beginning of year
  
 
(1,279
) 
  
 
(1,113
) 
Exchange differences
  
 
53
 
  
 
(53
) 
Charge for the year
  
 
(261
) 
  
 
(271
) 
Disposals
  
 
82
 
  
 
158
 
  
 
 
   
 
 
 
At end of year
  
 
(1,405
) 
  
 
(1,279
) 
  
 
 
   
 
 
 
Carrying amounts at end of year
  
 
870
 
  
 
817