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GOODWILL (Tables)
12 Months Ended
Dec. 31, 2019
Disclosure of goodwill [text block] [Abstract]  
Disclosure of reconciliation of changes in goodwill [text block]
   2019
£m
   2018
£m
 
At 1 January   2,310    2,310 
Acquisition of businesses (note 23)   14     
At 31 December   2,324    2,310 
Cost1   2,664    2,664 
Accumulated impairment losses   (340)   (354)
At 31 December   2,324    2,310 
1 For acquisitions made prior to 1 January 2004, the date of transition to IFRS, cost is included net of amounts amortised up to 31 December 2003.