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OTHER ASSETS (Tables)
12 Months Ended
Dec. 31, 2017
Disclosure of other assets [text block] [Abstract]  
Schedule of Other Assets [Text Block]
   2017   2016 
   £m   £m 
Assets arising from reinsurance contracts held (notes 31 and 33)   602    714 
Deferred acquisition and origination costs   104    81 
Settlement balances   720    700 
Corporate pension asset   7,786    6,645 
Investments in joint ventures and associates   65    59 
Other assets and prepayments   4,260    4,556 
Total other assets   13,537    12,755