TRADING AND OTHER FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS (Tables)

12 Months Ended

Dec. 31, 2017

Financial assets at fair value through profit or loss, classified as held for trading, category [member]

TRADING AND OTHER FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS (Tables) [Line Items]

Disclosure of Trading and Other Financial Assets at Fair Value Through Profit or Loss [text block]

These assets are comprised as follows:

	2017						2016
	Trading assets £m		Other financial assets at fair value through profit or loss £m		Total £m		Trading assets £m		Other financial assets at fair value through profit or loss £m		Total £m
Loans and advances to customers		29,976		–		29,976		30,473		–		30,473
Loans and advances to banks		1,614		–		1,614		2,606		–		2,606
Debt securities:
Government securities		9,833		12,187		22,020		11,828		14,904		26,732
Other public sector securities		–		1,527		1,527		–		1,325		1,325
Bank and building society certificates of deposit		–		222		222		–		244		244
Asset-backed securities:
Mortgage-backed securities		189		211		400		47		660		707
Other asset-backed securities		95		926		1,021		69		1,469		1,538
Corporate and other debt securities		523		19,467		19,990		224		19,608		19,832
		10,640		34,540		45,180		12,168		38,210		50,378
Equity shares		6		86,084		86,090		6		67,691		67,697
Treasury and other bills		–		18		18		–		20		20
Total		42,236		120,642		162,878		45,253		105,921		151,174