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

12 Months Ended

Dec. 31, 2017

Financial assets at fair value through profit or loss, category [member]

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

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

	2017		2016
	£m		£m
Liabilities held at fair value through profit or loss		7,815		9,425
Trading liabilities:
Liabilities in respect of securities sold under repurchase agreements		41,378		42,067
Other deposits		381		530
Short positions in securities		1,303		2,482
		43,062		45,079
Trading and other financial liabilities at fair value through profit or loss		50,877		54,504