Derivative financial instruments (Tables)

6 Months Ended

Jun. 30, 2025

Derivative Financial Instruments [Abstract]

Schedule of derivative financial instruments

	At 30 June 2025			At 31 December 2024
	Fair value of assets £m	Fair value of liabilities £m		Fair value of assets £m	Fair value of liabilities £m
Trading and other
Exchange rate contracts	9,911		9,537	10,247	9,172
Interest rate contracts	12,710		9,555	13,436	11,644
Credit derivatives	92		185	87	172
Equity and other contracts	199		299	247	333
	22,912		19,576	24,017	21,321
Hedging
Derivatives designated as fair value hedges	7		300	8	337
Derivatives designated as cash flow hedges	24		3	40	18
	31		303	48	355
Total recognised derivative assets/liabilities	22,943		19,879	24,065	21,676