Barclays Bank (ATMP) 6-K 29 Jul 20 2020 Q2 Current report (foreign) Financial data

Cover

Cover	6 Months Ended
	Jun. 30, 2020
Cover [Abstract]
Document Type	6-K
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Document Period End Date	Jun. 30, 2020
Entity Registrant Name	BARCLAYS BANK PLC
Entity Central Index Key	0000312070
Current Fiscal Year End Date	--12-31

Condensed consolidated Income S

Condensed consolidated Income Statement (unaudited) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Income statement
Interest and similar income		£ 3,173	£ 3,938
Interest and similar expense		(1,502)	(2,117)
Net interest income		1,671	1,821
Fee and commission income		3,818	3,790
Fee and commission expenses		(939)	(961)
Net fee and commission income		2,879	2,829
Net trading income		4,225	2,093
Net investment income		(146)	337
Other income		8	42
Total income	[1]	8,637	7,122
Credit impairment charges		(2,674)	(510)
Net operating income		5,963	6,612
Staff costs		(2,191)	(2,354)
Infrastructure, administration and general expenses		(2,357)	(2,488)
Litigation and conduct		(19)	(68)
Operating expenses		(4,567)	(4,910)
Share of post-tax results of associates and joint ventures		126	10
Profit on disposal of subsidiaries, associates and joint ventures		1	13
Profit/(loss) before tax		1,523	1,725
Tax charge		(230)	(260)
Profit after tax		1,293	1,465
Attributable to:
Equity holders of the parent		960	1,171
Other equity instrument holders		333	294
Profit after tax		£ 1,293	£ 1,465
[1]	T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated

Condensed consolidated statemen

Condensed consolidated statement of comprehensive income (unaudited) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Statement of comprehensive income [abstract]
Profit after tax		£ 1,293	£ 1,465
Other comprehensive income/(loss) that may be recycled to profit or loss from continuing operations:
Currency translation reserve	[1]	1,386	232
Fair value through other comprehensive income reserve	[1]	137	359
Cash flow hedging reserve	[1]	1,065	612
Other	[1]	(6)	0
Other comprehensive income/(loss) that may be recycled to profit or loss from continuing operations	[1]	2,582	1,203
Other comprehensive income/(loss) not recycled to profit or loss from continuing operations:
Retirement benefit remeasurements	[1]	645	(140)
Own credit	[1]	496	44
Other comprehensive loss not recycled to profit or loss from continuing operations		1,141	(96)
Other comprehensive income/(loss) for the period		3,723	1,107
Total comprehensive income for the period		£ 5,016	£ 2,572
[1]	Reported net of tax

Condensed consolidated balance

Condensed consolidated balance sheet (unaudited) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and balances at central banks	£ 155,792	£ 125,940
Cash collateral and settlement balances	130,873	79,486
Loans and advances at amortised cost	150,203	141,636
Reverse repurchase agreements and other similar secured lending	19,811	1,731
Trading portfolio assets	109,461	113,337
Financial assets at fair value through the income statement	155,540	129,470
Derivative financial instruments	307,650	229,641
Financial assets at fair value through other comprehensive income	55,161	45,406
Investments in associates and joint ventures	30	295
Goodwill and intangible assets	1,250	1,212
Property, plant and equipment	1,654	1,631
Current tax assets	984	898
Deferred tax assets	2,639	2,460
Retirement benefit assets	2,848	2,108
Other assets	2,062	1,421
Total Assets	1,095,958	876,672
Liabilities
Deposits at amortised cost	245,737	213,881
Cash collateral and settlement balances	113,341	67,682
Repurchase agreements and other similar secured borrowing	4,033	2,032
Debt securities in issue	50,496	33,536
Subordinated liabilities	36,965	33,425		£ 35,327
Trading portfolio liabilities	50,378	35,212
Financial liabilities designated at fair value	222,142	204,446
Derivative financial instruments	307,989	228,940
Current tax liabilities	310	320
Deferred tax liabilities	1,084	80
Retirement benefit liabilities	319	313
Other liabilities	5,385	5,239
Provisions	1,085	951
Total liabilities	1,039,264	826,057
Equity
Called up share capital and share premium	2,348	2,348
Other equity instruments	8,323	8,323
Other reserves	6,319	3,235
Retained earnings	39,704	36,709
Total equity	56,694	50,615	£ 52,610	£ 47,711
Total liabilities and equity	£ 1,095,958	£ 876,672

Condensed consolidated statem_2

Condensed consolidated statement of changes in equity (unaudited) - GBP (£)		Total		Total equity excluding non-controlling interests [member]	Called up share capital and share premium [member]	Other equity instruments [member]	Other reserves [member]	Retained earnings [member]	Non-controlling interests [member]
Beginning Balance, equity at Dec. 31, 2018		£ 47,711,000,000		£ 47,709,000,000	£ 2,348,000,000	£ 7,595,000,000	£ 3,361,000,000	£ 34,405,000,000	£ 2,000,000
Profit after tax		1,465,000,000		1,465,000,000	0	294,000,000	0	1,171,000,000	0
Currency translation movements		232,000,000	[1]	232,000,000	0	0	232,000,000	0	0
Fair value through other comprehensive income reserve		359,000,000		359,000,000	0	0	359,000,000	0	0
Cash flow hedges		612,000,000	[1]	612,000,000	0	0	612,000,000	0	0
Retirement benefit remeasurements		(140,000,000)	[1]	(140,000,000)	0	0	0	(140,000,000)	0
Own credit		44,000,000	[1]	44,000,000	0	0	44,000,000	0	0
Other	[1]	0
Total comprehensive income for the period		2,572,000,000		2,572,000,000	0	294,000,000	1,247,000,000	1,031,000,000	0
Issue and/or exchange of other equity instruments		1,796,000,000		1,796,000,000	0	1,807,000,000	0	(11,000,000)	0
Other equity instruments coupons paid		(294,000,000)		(294,000,000)	0	(294,000,000)	0	0	0
Equity settled share schemes		198,000,000		198,000,000	0	0	0	198,000,000	0
Vesting of Barclays PLC shares under equity settled share schemes		(340,000,000)		(340,000,000)	0	0	0	(340,000,000)	0
Dividends paid				0
Dividends paid - preference shares				(27,000,000)
Dividends paid		(27,000,000)		(27,000,000)	0	0	0	(27,000,000)	0
Capital contribution from Barclays PLC		995,000,000		995,000,000	0	0	0	995,000,000	0
Other movements		(1,000,000)		1,000,000	0	0	0	1,000,000	(2,000,000)
Ending Balance, equity at Jun. 30, 2019		52,610,000,000		£ 52,610,000,000	2,348,000,000	9,402,000,000	4,608,000,000	36,252,000,000	£ 0
Profit after tax		1,315,000,000			0	366,000,000	0	949
Currency translation movements		(776,000,000)			0	0	(776,000,000)	0
Fair value through other comprehensive income reserve		(200,000,000)			0	0	(200,000,000)	0
Cash flow hedges		(101,000,000)			0	0	(101,000,000)	0
Retirement benefit remeasurements		(54,000,000)			0	0	0	(54)
Own credit		(296,000,000)			0	0	(296,000,000)	0
Other		16,000,000			0	0	0	16,000,000
Total comprehensive income for the period		(96,000,000)			0	366,000,000	(1,373,000,000)	911,000,000
Issue and/or exchange of other equity instruments		(1,474,000,000)			0	(1,079,000,000)	0	(395,000,000)
Other equity instruments coupons paid		(366,000,000)			0	(366,000,000)	0	0
Equity settled share schemes		194,000,000			0	0	0	194,000,000
Vesting of Barclays PLC shares under equity settled share schemes		(9,000,000)			0	0	0	(9,000,000)
Dividends paid		(233,000,000)			0	0	0	(233,000,000)
Dividends paid - preference shares		(14,000,000)			0	0	0	(14,000,000)
Other movements		3,000,000			0	0	0	3,000,000
Ending Balance, equity at Dec. 31, 2019		50,615,000,000			2,348,000,000	8,323,000,000	3,235,000,000	36,709,000,000
Profit after tax		1,293,000,000			0	333,000,000	0	960,000,000
Currency translation movements		1,386,000,000	[1]		0	0	1,386,000,000	0
Fair value through other comprehensive income reserve		137,000,000			0	0	137,000,000	0
Cash flow hedges		1,065,000,000	[1]		0	0	1,065,000,000	0
Retirement benefit remeasurements		645,000,000	[1]		0	0	0	645,000,000
Own credit		496,000,000	[1]		0	0	496,000,000	0
Other		(6,000,000)	[1]		0	0	0	(6,000,000)
Total comprehensive income for the period		5,016,000,000			0	333,000,000	3,084,000,000	1,599,000,000
Other equity instruments coupons paid		(333,000,000)			0	(333,000,000)	0	0
Equity settled share schemes		475,000,000			0	0	0	475,000,000
Vesting of Barclays PLC shares under equity settled share schemes		(289,000,000)			0	0	0	(289,000,000)
Dividends paid		(263,000,000)			0	0	0	(263,000,000)
Dividends paid - preference shares		(28,000,000)			0	0	0	(28,000,000)
Dividends paid		(291,000,000)
Capital contribution from Barclays PLC		1,500,000,000			0	0	0	1,500,000,000
Other movements		1,000,000			0	0	0	1,000,000
Ending Balance, equity at Jun. 30, 2020		£ 56,694,000,000			£ 2,348,000,000	£ 8,323,000,000	£ 6,319,000,000	£ 39,704,000,000
[1]	Reported net of tax

Condensed consolidated cash flo

Condensed consolidated cash flow statement (unaudited) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Reconciliation of profit before tax to net cash flows from operating activities:
Profit (loss) before tax	£ 1,523	£ 1,725
Adjustments for non-cash items	301	314
Net increase in loans and advances at amortised cost	(11,096)	(6,368)
Net increase in deposits at amortised cost	32,357	15,553
Net increase in debt securities in issue	16,960	3,188
Changes in other operating assets and liabilities	4,825	(16,727)
Corporate income tax paid	(270)	(260)
Net cash from operating activities	44,600	(2,575)
Net cash from investing activities	(7,022)	(9,094)
Net cash from financing activities	653	2,552
Effect of exchange rates on cash and cash equivalents	7,813	652
Net increase/(decrease )in cash and cash equivalents	46,044	(8,465)
Cash and cash equivalents at beginning of the period	156,016	167,357
Cash and cash equivalents at end of the period	£ 202,060	£ 158,892

Basis of preparation

Basis of preparation	6 Months Ended
	Jun. 30, 2020
1. Basis of preparation
Basis of preparation	1 . Basis of preparation These condensed consolidated interim financial statements for the six months ended 30 June 2020 have been prepared in accordance with the Disclosure and Transparency Rules (DTR) of the Financial Conduct Authority UK (FCA) and with IAS 34, Interim Financial Reporting, as published by the International Accounting Standards Board (IASB) and adopted by the EU. The condensed consolidated interim financial statements should be read in conjunction with the annual financial statem ents for the year ended 31 December 2019, which have been prepared in accordance with IFRSs as published by the IASB and as adopted by the EU. The accounting policies and methods of computation used in these condensed consolidated interim financial state ments are the same as those used in the Barclays Bank PLC Annual Report 2019. 1. Going concern The financial statements are prepared on a going concern basis, as the Directors are satisfied that the Barclays Bank Group and parent company have the reso urces to continue in business for the foreseeable future. In making this assessment, the Directors have considered a wide range of information relating to present and future conditions, including future projection s of profitability, capital requirements an d capital resources. 2. Other disclosures The Credit risk disclosures on pages 8 to 15 form part of these interim financial statements.

Segmental reporting

Segmental reporting	6 Months Ended
	Jun. 30, 2020
2. Segmental Reporting
Segmental Reporting	2 . Segmental reporting Analysis of results by business Corporate and Investment Bank Consumer, Cards and Payments Head Office Barclays Bank Group Half year ended 30.06.20 £m £m £m £m Total income 6,973 1,742 (78) 8,637 Credit impairment charges (1,320) (1,299) (55) (2,674) Net operating income/(expenses) 5,653 443 (133) 5,963 Operating expenses (3,458) (1,053) (37) (4,548) Litigation and conduct (4) (8) (7) (19) Total operating expenses (3,462) (1,061) (44) (4,567) Other net income/(expenses) 1 12 115 - 127 Profit/(loss) before tax 2,203 (503) (177) 1,523 As at 30.06.20 £bn £bn £bn £bn Total assets 1,017.1 66.0 12.9 1,096.0 Corporate and Investment Bank Consumer, Cards and Payments Head Office Barclays Bank Group Half year ended 30.06.19 £m £m £m £m Total income 5,149 2,193 (220) 7,122 Credit impairment charges (96) (396) (18) (510) Net operating income/(expenses) 5,053 1,797 (238) 6,612 Operating expenses (3,589) (1,207) (45) (4,841) Litigation and conduct (26) (4) (39) (69) Total operating expenses (3,615) (1,211) (84) (4,910) Other net income/(expenses) 1 15 16 (8) 23 Profit/(loss) before tax 1,453 602 (330) 1,725 As at 31.12.19 £bn £bn £bn £bn Total assets 799.6 65.7 11.4 876.7 1 Other net income/(expenses) represents the share of post-tax results of associates and joint ventures, profit (or loss) on disposal of subsidiaries, associates and joint ventures and gains on acquisitions . Split of income by geographic region 1 Half year ended Half year ended 30.06.20 30.06.19 £m £m UK 2,835 2,089 Europe 1,240 783 Americas 3,872 3,680 Africa and Middle East 23 41 Asia 667 529 Total 8,637 7,122 T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated .

Net fee and commission income

Net fee and commission income	6 Months Ended
	Jun. 30, 2020
3. Net fee and commission income
Net fee and commission income	3 . Net fee and commission income Fee and commission income is disaggregated below and includes a total for fees in scope of IFRS 15, Revenue from Contracts with Customers: Corporate and Investment Bank Consumer, Cards and Payments Head Office Total Half year ended 30.06.20 £m £m £m £m Fee type Transactional 177 968 - 1,145 Advisory 260 46 - 306 Brokerage and execution 654 31 - 685 Underwriting and syndication 1,468 - - 1,468 Other 35 100 19 154 Total revenue from contracts with customers 2,594 1,145 19 3,758 Other non-contract fee income 57 3 - 60 Fee and commission income 2,651 1,148 19 3,818 Fee and commission expense (441) (497) (1) (939) Net fee and commission income 2,210 651 18 2,879 Corporate and Investment Bank Consumer, Cards and Payments Head Office Total Half year ended 30.06.19 £m £m £m £m Fee type Transactional 185 1,168 - 1,353 Advisory 364 41 - 405 Brokerage and execution 512 24 - 536 Underwriting and syndication 1,240 - - 1,240 Other 62 124 16 202 Total revenue from contracts with customers 2,363 1,357 16 3,736 Other non-contract fee income 54 - - 54 Fee and commission income 2,417 1,357 16 3,790 Fee and commission expense (350) (611) - (961) Net fee and commission income 2,067 746 16 2,829 Transactional fees are service charges on deposit accounts, cash management services and transactional processing fees. This includes interchange and merchant fee income generated from credit and bank card usage. Advisory fees are generated from asset management services and advisory services related to mergers, acquisitions and financial restructuring. Brokerage and execution fees are earned for executing client transactions with exchanges and over-the-counter markets and assisting clients in clearing transactions. Underwriting and syndication fees are earned for the distribution of client equity or debt securities, and the arrangement and administration of a loan syndication. This includes commitment fees to provide loan financing.

Tax

Tax	6 Months Ended
	Jun. 30, 2020
4. Tax
Tax	4 . Tax The tax charge for H120 was £ 230 m (H119: £ 260 m), representing an effective tax rate of 15.1 % (H119: 15.1 %). As at As at 30.06.20 31.12.19 Deferred tax assets and liabilities £m £m USA 2,168 2,052 Other territories 471 408 Deferred tax assets 2,639 2,460 Deferred tax liabilities - UK (1,084) (80) Analysis of deferred tax assets Temporary differences 2,184 1,937 Tax losses 455 523 Deferred tax assets 2,639 2,460

Dividends on ordinary shares

Dividends on ordinary shares	6 Months Ended
	Jun. 30, 2020
5. Dividends on ordinary shares
Dividends on ordinary shares	5 . Dividends on o rdinary s hares Half year ended 30.06.20 Half year ended 30.06.19 Dividends paid during the period £m £m Ordinary shares 263 - Preference shares 28 27 Total 291 27 A dividend of £263m was paid on 25 March 2020 by Barclays Bank PLC to its parent Barclays PLC. This was prior to the announcement made by the PRA on 31 March 2020 that capital be preserved for use in serving Barclays customers and clients through the extraordinary c hallenges presented by the COVID -19 pandemic. As part of a response to this announcement, Barclays PLC took steps to provide additional capital to Barclays Bank PLC as part of the £ 1.5 bn of capital contributions made during H120.

Fair value of financial instrum

Fair value of financial instruments	6 Months Ended
	Jun. 30, 2020
6. Fair value of financial instruments
Fair value of financial instruments	6 . Fair v alue of financial i nstruments This section should be read in conjunction with Note 16, Fair value of financial instruments of the Barclays Bank PLC Annual Report 2019 and Note 1 , Basis of preparation on page 25 , which provides more detail about accounting policies adopted, valuation methodologies used in calculating fair value and the valuation control framework which governs oversight of valuations. There have been no changes in the a ccounting policies adopted or the valuation methodologies used. Valuation The following table shows Barclays Bank Group’s assets and liabilities that are held at fair value disaggregated by valuation technique (fair value hierarchy) and balance sheet classification: Valuation technique using Quoted market prices Observable inputs Significant unobservable inputs (Level 1) (Level 2) (Level 3) Total As at 30.06.20 £m £m £m £m Trading portfolio assets 49,106 57,277 3,078 109,461 Financial assets at fair value through the income statement 1,824 148,894 4,822 155,540 Derivative financial instruments 8,761 291,142 7,747 307,650 Financial assets at fair value through other comprehensive income 13,172 41,642 347 55,161 Investment property - - 10 10 Total assets 72,863 538,955 16,004 627,822 Trading portfolio liabilities (31,333) (19,045) - (50,378) Financial liabilities designated at fair value (123) (221,664) (355) (222,142) Derivative financial instruments (8,445) (290,612) (8,932) (307,989) Total liabilities (39,901) (531,321) (9,287) (580,509) As at 31.12.19 Trading portfolio assets 59,968 51,105 2,264 113,337 Financial assets at fair value through the income statement 10,300 115,008 4,162 129,470 Derivative financial instruments 5,439 221,048 3,154 229,641 Financial assets at fair value through other comprehensive income 11,577 33,400 429 45,406 Investment property - - 13 13 Total assets 87,284 420,561 10,022 517,867 Trading portfolio liabilities (19,645) (15,567) - (35,212) Financial liabilities designated at fair value (82) (204,021) (343) (204,446) Derivative financial instruments (5,305) (219,646) (3,989) (228,940) Total liabilities (25,032) (439,234) (4,332) (468,598) The following table shows Barclays Bank Group’s Level 3 assets and liabilities that are held at fair value disaggregated by product type: As at 30.06.20 As at 31.12.19 Assets Liabilities Assets Liabilities £m £m £m £m Interest rate derivatives 4,152 (3,772) 605 (812) Foreign exchange derivatives 655 (588) 291 (298) Credit derivatives 193 (456) 539 (342) Equity derivatives 2,730 (4,099) 1,710 (2,528) Commodity derivatives 17 (17) 9 (9) Corporate debt 516 - 521 - Reverse repurchase and repurchase agreements - (176) - (167) Non-asset backed loans 4,827 - 3,280 - Asset backed securities 740 - 756 - Equity cash products 1,145 - 1,228 - Private equity investments 126 - 112 - Other 1 903 (179) 971 (176) Total 16,004 (9,287) 10,022 (4,332) 1 Other includes commercial real estate loans, fund and fund-linked products, asset backed loans, issued debt, commercial paper, government sponsored debt and investment property. Assets and liabilities reclassified between Level 1 and Level 2 During the period, there were no material transfers between Level 1 and Level 2 (period ended December 2019: no material transfers between Level 1 and Level 2). Level 3 movement analysis The following table summarises the movements in the balances of Level 3 assets and liabilities during the period. The table shows gains and losses and includes amounts for all financial assets and liabilities that are held at fair value transferred to and from Level 3 during the period. Transfers have been reflected as if they had taken place at the beginning of the year. Asset and liability moves between Level 2 and Level 3 are primarily due to i) an increase or decrease in o bservable market activity related to an input or ii) a change in the significance of the unobservable input, with assets and liabilities classified as Level 3 if an unobservable input is deemed significant. Level 3 movement analysis Purchases Sales Issues Settle- ments Total gains and losses in the period recognised in the income statement Total gains or losses recognised in OCI Transfers As at 30.06.20 As at 01.01.20 Trading income Other income In Out £m £m £m £m £m £m £m £m £m £m £m Corporate debt 120 25 - - - (26) - - 4 (17) 106 Non-asset backed loans 974 1,927 (740) - (4) (111) - - 97 (320) 1,823 Asset backed securities 656 249 (224) - (76) (12) - - 41 (11) 623 Equity cash products 392 2 (4) - - (67) - - 28 (4) 347 Other 122 47 - - - 2 - - 8 - 179 Trading portfolio assets 2,264 2,250 (968) - (80) (214) - - 178 (352) 3,078 Non-asset backed loans 1,964 1,050 (270) - (112) 110 - - - - 2,742 Equity cash products 835 14 - - - (22) (29) - - - 798 Private equity investments 113 1 (2) - - 2 4 - 20 (12) 126 Other 1,250 1,865 (2,017) - (13) (8) 55 - 24 - 1,156 Financial assets at fair value through the income statement 4,162 2,930 (2,289) - (125) 82 30 - 44 (12) 4,822 Non-asset backed loans 343 79 - - (157) - - (3) - - 262 Asset backed securities 86 - (1) - - 1 - (1) - - 85 Financial assets at fair value through other comprehensive income 429 79 (1) - (157) 1 - (4) - - 347 Investment property 13 - (1) - - - (2) - 2 (2) 10 Trading portfolio liabilities - - - - - - - - - - - Issued debt (146) - - (3) - - - - (22) 14 (157) Other (197) - - - - (12) (1) - - 12 (198) Financial liabilities designated at fair value (343) - - (3) - (12) (1) - (22) 26 (355) Interest rate derivatives (206) 17 - - 10 268 1 - 300 (10) 380 Foreign exchange derivatives (7) - - - (12) 89 - - 5 (8) 67 Credit derivatives 198 (258) 11 - (376) 151 1 - 2 8 (263) Equity derivatives (820) (447) (1) - 17 (90) - - (5) (23) (1,369) Commodity derivatives - - - - - - - - - - - Net derivative financial instruments 1 (835) (688) 10 - (361) 418 2 - 302 (33) (1,185) Total 5,690 4,571 (3,249) (3) (723) 275 29 (4) 504 (373) 6,717 Derivative financial instruments are represented on a net basis. On a gross basis, derivative financial assets were £ 7,747 m and derivative financial liabilities were £ 8,932 m. Level 3 movement analysis Purchases Sales Issues Settle- ments Total gains and losses in the period recognised in the income statement Transfers As at 30.06.19 As at 01.01.19 Trading income Other income In Out £m £m £m £m £m £m £m £m £m £m Government and government sponsored debt 14 2 - - - - - - (14) 2 Corporate debt 388 70 (24) - (31) 14 - 32 (74) 375 Non-asset backed loans 2,263 1,235 (1,260) - (19) 12 - 19 (90) 2,160 Asset backed securities 664 81 (127) - - 5 - 16 (29) 610 Equity cash products 136 48 (13) - - (2) - 116 (20) 265 Other 148 - - - (1) (10) - - (1) 136 Trading portfolio assets 3,613 1,436 (1,424) - (51) 19 - 183 (228) 3,548 Non-asset backed loans 1,836 2 - - (132) 70 - - (1) 1,775 Equity cash products 559 9 - - (10) 4 178 - - 740 Private equity investments 191 4 (3) - (1) - (6) - - 185 Other 2,064 2,334 (2,619) - (2) 17 9 24 (840) 987 Financial assets at fair value through the income statement 4,650 2,349 (2,622) - (145) 91 181 24 (841) 3,687 Non-asset backed loans 353 48 - - (55) - - - (218) 128 Asset backed securities - 40 - - - - - - - 40 Equity cash products 2 - - - - - - - - 2 Financial assets at fair value through other comprehensive income 355 88 - - (55) - - - (218) 170 Investment property 9 - - - - - (1) - - 8 Trading portfolio liabilities (3) - - - - 2 - (5) - (6) - Certificates of deposit, commercial paper and other money market instruments (10) - - - 1 - (1) (11) - (21) Issued debt (251) - - (16) 1 5 - (3) 1 (263) Financial liabilities designated at fair value (261) - - (16) 2 5 (1) (14) 1 (284) Interest rate derivatives 22 (3) - - 76 116 - (107) 145 249 Foreign exchange derivatives 7 - - - (12) (41) - (51) 17 (80) Credit derivatives 1,050 (63) 4 - (3) 86 - 2 3 1,079 Equity derivatives (607) (122) (5) - 23 89 - (16) 292 (346) Commodity derivatives - - - - - - - - - - Net derivative financial instruments 1 472 (188) (1) - 84 250 - (172) 457 902 Total 8,835 3,685 (4,047) (16) (165) 367 179 16 (829) 8,025 Derivative financial instruments are presented on a net basis. On a gross basis, derivative financial assets were £ 5,701 m and derivative financial liabilities were £ 4,799 m. Unrealised g ains and losses on Level 3 financial assets and liabilities The following table discloses the unrealised gains a nd losses recognised in the period arising on Level 3 financial assets and liabilities held at the pe riod end. Half year ended 30.06.20 Half year ended 30.06.19 Income statement Other compre-hensive income Total Income statement Other compre-hensive income Total Trading income Other income Trading income Other income £m £m £m £m £m £m £m £m Trading portfolio assets (177) - - (177) 21 - - 21 Financial assets at fair value through the income statement 126 (24) - 102 75 178 - 253 Financial assets at fair value through other comprehensive income - - (2) (2) - - - - Investment properties - (2) - (2) - (1) - (1) Trading portfolio liabilities - - - - 2 - - 2 Financial liabilities designated at fair value (16) (1) - (17) 6 - - 6 Net derivative financial instruments 248 - - 248 212 - - 212 Total 181 (27) (2) 152 316 177 - 493 Valuation techniques and sensitivity analysis Sensitivity analysis is performed on products with significant unobservable inputs (Level 3) to generate a range of reasonably possible alternative valuations. The sensitivity methodologies applied take account of the nature of valuation techniques used, as well as the availability and reliability of observable proxy and historical data and the impact of using alternative models. Sensitivity analysis of valuations using unobservable inputs As at 30.06.20 As at 31.12.19 Favourable changes Unfavourable changes Favourable changes Unfavourable changes Income statement Equity Income Statement Equity Income statement Equity Income Statement Equity £m £m £m £m £m £m £m £m Interest rate derivatives 138 - (256) - 44 - (127) - Foreign exchange derivatives 7 - (11) - 5 - (7) - Credit derivatives 127 - (109) - 73 - (47) - Equity derivatives 151 - (158) - 114 - (119) - Commodity derivatives - - - - - - - - Corporate debt 23 - (23) 11 - (16) - Non-asset backed loans 159 4 (322) (4) 125 8 (228) (8) Equity cash products 164 - (206) - 123 - (175) - Private equity investments 18 - (19) - 16 - (25) - Other 1 2 - (2) - 1 - (1) - Total 789 4 (1,106) (4) 512 8 (745) (8) Other includes commercial real estate loans, fund and fund-linked products , asset backed loans, issued debt, commercial paper, government sponsored debt and investment propert y. The effect of stressing unobservable inputs to a range of reasonably possible alternatives, alongside considering the impact of using alternative models, would be to increase fair values by up to £ 793 m ( December 2019: £ 5 20 m) or to decrease fair values by up to £ 1,110 m ( December 2019: £ 753 m) with substantially all the potential effect impacting profit and loss rather than reserves. Significant unobservable inputs The valuation techniques and significant unobservable inputs for assets and liabilities recognised at fair value and classified as Level 3 are consistent with Note 16, F air value of financial instruments in the Barclays Bank PLC Annual Report 2019 . The description of the significant unobservable inputs and the sensitivity of fair value measurement of the instruments categorised as Level 3 assets or liabilities to increases in significant unobse rvable inputs is also found in N ote 1 6, F air value of financial instruments of the Barclays Bank PLC Annual Report 2019 . Fair value adjustments Key balance sheet valuation adjustments are quantified below: As at As at 30.06.20 31.12.19 £m £m Exit price adjustments derived from market bid-offer spreads (564) (420) Uncollateralised derivative funding (181) (57) Derivative credit valuation adjustments (378) (135) Derivative debit valuation adjustments 148 155  Exit price adjustments derived from market bid-offer spreads increased by £ 144 m to £ 564 m as a result of movements in market bid offer spreads.  Uncollateralised derivative funding increased by £ 124 m to £ 181 m as a result of widening input funding spreads and an update to methodology.  Derivative credit valuation adjustments increased by £ 243 m to £ 378 m as a result of widening input counterparty credit spreads.  Derivative debit valuation adjustments decreased by £ 7 m to £ 148 m as a result of widening input Barc lays Bank PLC credit spreads and an update to methodology. Portfolio exemption Barclays Bank Group uses the portfolio exemption in IFRS 13 , Fair Value Measurement to measure the fair value of groups of financial assets and liabilities. Instruments are measured using the price that would be received to sell a net long position (i.e. an asset) for a particular risk exposure or to transfer a net short position (i.e. a liability) for a particular risk exposure in an orderly transaction between market participants a t the balance sheet date under current market conditions. Accordingly, the B arclays B ank Group measures the fair value of the group of financial assets and liabilities consistently with how market participants would price the net risk exposure at the measu rement date. Unrecognised gains as a result of the use of valuation models using unobservable inputs The amount that has yet to be recognised in income that relates to the difference between the transaction price (the fair value at initial recognition) an d the amount that would have arisen had valuation models using unobservable inputs been used on initial recognition, less amounts subsequently recognised, is £ 101 m (December 2019 : £ 100 m) for financial instruments measured at fair value and £ 31 m (December 2 019 : £ 31 m) for financial instruments carried at amortised cost. The re are additions of £ 11 m (December 2019 : £ 40 m) and amortisation and releases of £ 10 m (December 2019 : £ 67 m) for financial instruments measured at fair value and additions of £ 1 m (December 20 19 : £ 2 m) and amortisation and releases of £ 1 m (December 2019 : £ 2 m) for financial instruments carried at amortised cost . Third party credit enhancements Structured and brokered certificates of deposit issued by Barclays Bank Group are insured up to $250,000 per depositor by the Federal Deposit Insurance Corporation (FDIC) in the United States . The FDIC is funded by premiums that the Barclays Bank Group and other banks pay for deposit insurance coverage. The carrying value of these issued certificates of deposit that are designated under the IFRS 9 fair value option includes this third party credit enhancement. The on-balance sheet value of these brokered certificates of deposit amounted to £ 3,162 m (December 2019: £ 3,218 m). Comparison of carrying amounts and fair values for assets and liabilities not held at fair value Valuation methodologies employed in calculating the fair value of financial assets and liabilities measured at amortised cost are consistent with the Barclays Bank PLC Annual Report on Form 20-F 2019 disclosure. The following table summarises the fair value of financial assets and liabilities measured at amortised cost on the Barclays Bank Group’s balance sheet: As at 30.06.20 As at 31.12.19 Carrying amount Fair value Carrying amount Fair value Financial assets £m £m £m £m Loans and advances at amortised cost 150,203 149,511 141,636 141,251 Reverse repurchase agreements and other similar secured lending 19,811 19,811 1,731 1,731 Financial liabilities Deposits at amortised cost (245,737) (245,758) (213,881) (213,897) Repurchase agreements and other similar secured borrowing (4,033) (4,033) (2,032) (2,032) Debt securities in issue (50,496) (50,568) (33,536) (33,529) Subordinated liabilities (36,965) (37,675) (33,425) (34,861)

Subordinated liabilities

Subordinated liabilities	6 Months Ended
	Jun. 30, 2020
7. Subordinated liabilities
Subordinated liabilities	7. Subordinated liabilities Half year ended Year ended 30.06.20 31.12.19 £m £m Opening balance as at 1 January 33,425 35,327 Issuances 3,162 6,785 Redemptions (2,814) (7,804) Other 3,192 (883) Closing balance 36,965 33,425 Issuances of £ 3,162 m comprises £ 3,082 m intra-group loans from Barclays PLC as well as £ 80 m USD Floating Rate Notes issued externally by a Barclays Bank PLC subsidiary. Redemptions of £ 2 ,814 m comprises £ 2,518 m intra-group loans from Barclays PLC as well as £ 266 m USD Floating Rate Notes and £ 30 m USD Fixed Rate Notes issued externally by Barclays Bank PLC subsidiaries. Other movements predominantly include foreign exchange and fair value hedge adjustments.

Provisions

Provisions	6 Months Ended
	Jun. 30, 2020
8. Provisions
Provisions	8. Provisions As at As at 30.06.20 31.12.19 £m £m Customer redress 27 71 Legal, competition and regulatory matters 250 374 Redundancy and restructuring 34 63 Undrawn contractually committed facilities and guarantees 593 252 Onerous contracts 9 20 Sundry provisions 172 171 Total 1,085 951

Retirement benefits

Retirement benefits	6 Months Ended
	Jun. 30, 2020
9. Retirement benefits
Retirement benefits	9 . Retirement b enefit s As at 30 June 2020, Barclays Bank Group’s IAS 19 pension surplus across all schemes was £ 2.5 bn (December 2019: £ 1.8 bn). The UK Retirement Fund (UKRF), which is the Group’s main scheme, had an IAS 19 pension surplus of £ 2.8 bn (December 2019: £ 2.1 bn). The movement for the UKRF was driv en by higher than assumed asset returns and lower than expected long-term price inflation, partially offset by a decrease in the discount rate. UKRF funding valuations The last triennial act uarial valuation of the UKRF had an effective date of 30 September 2019 and was completed in February 2020. This valuation showed a funding deficit of £ 2.3 bn and a funding level of 94.0 %. A revised deficit recovery plan was agreed with deficit reduction co ntributions required from Barclays Bank PLC of £ 500 m in 2019, £ 500 m in 2020, £ 700 m in 2021, £ 294 m in 2022 and £ 286 m in 2023. The deficit reduction contributions are in addition to the regular contributions to meet the Group’s share of the cost of benefits accruing over each year. On 12 June 2020, Barclays Bank PLC paid the £ 500 m deficit reduction contribution agreed for 2020 and at the same time the UKRF subscribed for non-transferrable listed senior fixed rate notes for £ 750 m, backed by UK gilts (the Seni or Notes). These Senior Notes entitle the UKRF to semi-annual coupon payments for five years, and full repayment in cash in three equal tranches in 2023, 2024, and at final maturity in 2025. The Senior Notes were issued by Heron Issuer Number 2 Limited (He ron 2), an entity that is consolidated within the Barclays Bank Group under IFRS 10. As a result of the investment in Senior Notes, the regulatory capital impact of the £500m deficit reduction contribution paid on 12 June 2020 takes effect in 2023, 2024 and 2025 on matu rity of the notes. The £ 250 m additional investment by the UKRF in the Senior Notes has a positive capital impact in 2020 which is reduced equally in 2023, 2024 and 2025 on the maturity of the notes. Heron 2 acquired a total of £ 750 m of gilts from B arclays B ank PLC for cash to support payments on the Senior Notes. The next triennial actuarial valuation of the UKRF is due to be completed in 2023 with an effective date of 30 September 2022.

Called up share capital

Called up share capital	6 Months Ended
	Jun. 30, 2020
10. Called up share capital
Called up share capital	10 . Called up share capital Ordinary shares A s a t 30 June 20 20 the issued ordinary share capital of Barclays Bank PLC comprised 2,342 m ( December 2019 : 2,342 m) ordinary shares of £ 1 each. Preference share s A s a t 30 June 2020 the issued preference share capital of Barclays Bank PLC of £ 6 m (December 201 9 : £ 6 m) comprise d 1,000 Sterling Preference Shares of £ 1 each ( December 201 9 : 1,000 ); 31,856 Euro Preference Shares of € 100 each ( December 201 9 : 31,856 ); and 58,133 U S Dollar Preference shares of $ 100 each ( December 201 9 : 58,13 3 ). There were no issuance s or redemption s of ordinary or preference s hares in the six months to 30 June 2020 .

Other equity instruments

Other equity instruments	6 Months Ended
	Jun. 30, 2020
11. Other equity instruments
Other equity instruments	11 . Other equity instruments Other equity instruments of £ 8,323 m ( December 201 9 : £ 8,323 m) are AT1 securities issued to Barclays PLC . Barclays PLC uses funds from the market issuance to purchase AT1 s ec urities from Barclays Bank PLC . There have been no issuances or redemptions in the period. The AT1 securities are perpetual securities with no fixed maturity and are structured to qualify as AT1 instruments under prevailing capital rules applicable as at the relevant issue date . AT1 securi ties are undated and are redeemab le, at the option of Barclays Bank PLC, in whole at the initial call date, or on any fifth anniversary after the initial call date. In addition, the AT1 securities are re deemable , at the option of Barclays Bank PLC, i n whole in the event of certain changes in the tax or regulatory treatment o f the securities. Any redemptions require the prior consent of the PRA.

Other reserves

Other reserves	6 Months Ended
	Jun. 30, 2020
12. Other reserves
Other reserves	12. Other reserves As at As at 30.06.20 31.12.19 £m £m Currency translation reserve 4,769 3,383 Fair value through other comprehensive income reserve (2) (139) Cash flow hedging reserve 1,453 388 Own credit reserve 123 (373) Other reserves (24) (24) Total 6,319 3,235 Currency t ranslation r eserve The currency translation reserve represents the cumulative gains and losses on the retranslation of Barclays Bank Group’s net investment in foreign operations, net of the effects of hedging. As at 30 June 2020 , there was a credit balance of £ 4,769 m (December 2019 : £ 3,383 m credit) in the currency tr anslation reserve. The £ 1,386 m credit movement principally reflected the strengthening of period end USD exchange rate against GBP . Fair value through other comprehensive income reserve The fair value through other comprehensive income reserve represents the unrealised change in the fair value through other comprehensive income investments since initial recognition. As at 30 June 2020, there was a debit balance of £ 2 m (December 2019: £ 139 m debit) in the fair value through other comprehensive income reserve. The gain of £ 137 m is principally driven by a £ 277 m gain from the increase in fair value of bonds due to decreasing bond yields . This is partially offset by £ 114 m of net gains transferred to the income statement and a tax charge of £ 42 m . Cash f low h edg ing r eserve The cash flow hedging reserve represents the cumulative gains and losses on effective cash flow hedging instruments that will be recycled to the income statement when the hedged transactions affect profit or loss. As at 30 June 2020 , there was a credit balance of £ 1,4 53 m (December 2019: £ 388 m cred it) in the c ash flow hedgi ng reserve. The increase of £ 1, 065 m principally reflect s a £ 1,5 87 m in crease in the fair value of interest rate swaps held for hedging purpose as major interes t ra te forward curves decreased . This is partially offset by £ 1 17 m of g ains transferred to the income statement and a t ax charge of £ 408 m Own credit r eserve The own credit reserve reflects the cumulative own credit gains and losses on financial liabilities at fair value. Amou nts in the own credit reserve are not recycled to profit or loss in future periods. As at 30 June 2020, there was a credit balance of £ 123 m (December 2019: £ 373 m debit) in the own credit reserve. The movement of £ 496 m principally reflect s a £ 845 m gain from the widening of Barclays funding spreads. This is partially offset by other activity of £ 209 m and a tax charge of £ 14 4 m . Other reserves As at 30 June 2020 , there was a debit balance of £ 24 m (December 2019 : £ 24 m debit) in other reserves relating to redeemed ordinary and preference shares issued by Barclays Bank Group.

Contingent liabilities and comm

Contingent liabilities and commitments	6 Months Ended
	Jun. 30, 2020
13. Contingent liabilities and commitments
Contingent liabilities and commitments	13 . Contingent liabilities and commitments As at As at 30.06.20 31.12.19 Contingent liabilities £m £m Guarantees and letters of credit pledged as collateral security 15,825 17,006 Performance guarantees, acceptances and endorsements 6,589 6,771 Total 22,414 23,777 Commitments Documentary credits and other short-term trade related transactions 1,162 1,291 Standby facilities, credit lines and other commitments 264,376 268,736 Total 265,538 270,027 In addition to the above, Note 14 , Legal, competition and regulatory matters details out further contingent liabilities where it is not practicable to disclose an estimate of the potential financial effect on Barclays Bank Group.

Legal, competition and regulato

Legal, competition and regulatory matters	6 Months Ended
	Jun. 30, 2020
14. Legal, competition and regulatory matters
Legal, competition and regulatory matters	14 . Legal, competition and regulatory matters Barclays Bank Group face legal, competition and regulatory challenges, many of which are beyond our control. The extent of the impact of these matters cannot always be predicted but may materially impact our operations, financial results, condition and prospects. Matters arising from a set of similar circumstances can give rise to either a contingent liability or a provision, or both, depending on the relevant facts and circumstances. The recognition of provisions in relation to such matters involves critical accounting estimates and judgments in accordance with the relevant accounting policies as described in Note 8 , Provisions. We have not disclosed an esti mate of the potential financial impact or effect on the Barclays Bank Group of contingent liabilities where it is not currently practicable to do so. Various matters detailed in this note seek damages of an unspecified amount. While certain matters specify the damages claimed, such claimed amounts do not necessarily reflect the Barclays Bank Group’s potential financial exposure in respect of those matters. Investigations into c ertain advisory services a greements and other matters and civil action FCA proceedings In 2008, Barclays Bank PLC and Qatar Holdings LLC entered into two advisory service agreements (the Agreements). The Financial Conduct Authority (FCA) conducted an investigation into whether the Agreements may have related to Barclays PLC’ s capital raisings in June and November 2008 (the Capital Raisings) and therefore should have been disclosed in the announcements or public documents relating to the Capital Raisings. In 2013, the FCA issued warning notices (the Notices) finding that Barcl ays PLC and Barclays Bank PLC acted recklessly and in breach of certain disclosure-related listing rules, and that Barclays PLC was also in breach of Listing Principle 3. The financial penalty provided in the Notices is £50m. Barclays PLC and Barclays Bank PLC continue to contest the findings. Following the conclusion of the Serious Fraud Office (SFO) proceedings against certain former Barclays executives resulting in their acquittals, the FCA proceedings, which were stayed, have resumed. All charges brough t by the SFO against Barclays PLC and Barclays Bank PLC in relation to the Agreements were dismissed in 2018. Civil action PCP Capital Partners LLP and PCP International Finance Limited (PCP) are seeking damages of approximately £1.6bn from Barclays Bank PLC for fraudulent misrepresentation and deceit, arising from alleged statements made by Barclays Bank PLC to PCP in relation to the terms on which securities were to be issued to potential investors, allegedly including PCP, in the November 2008 capital raising. Barclays Bank PLC is defending the claim and trial commenced in June 2020. Investigations into LIBOR and other b enchmarks and related civil actions Regulators and law enforcement agencies, including certain competition authorities, from a number of governments have conducted investigations relating to Barclays Bank PLC’s involvement in allegedly manipulating certain financial benchmarks, such as LIBOR. The SFO has closed its investigation with no action to be taken against the Barclays Group. Var ious individuals and corporates in a range of jurisdictions have threatened or brought civil actions against the Barclays Group and other banks in relation to the alleged manipulation of LIBOR and/or other benchmarks. Certain actions remain pending. USD L IBOR civil actions The majority of the USD LIBOR cases, which have been filed in various US jurisdictions, have been consolidated for pre-trial purposes in the US District Court in the Southern District of New York (SDNY). The complaints are substantially similar and allege, among other things, that Barclays PLC, Barclays Bank PLC, Barclays Capital Inc. (BCI) and other financial institutions individually and collectively violated provisions of the US Sherman Antitrust Act (Antitrust Act), the US Commodity E xchange Act (CEA), the US Racketeer Influenced and Corrupt Organizations Act (RICO), the Securities Exchange Act of 1934 and various state laws by manipulating USD LIBOR rates. Putative class actions and individual actions seek unspecified damages with the exception of three lawsuits, in which the plaintiffs are seeking a combined total of approximately $900m in actual damages and additional punitive damages against all defendants, including Barclays Bank PLC. Some of the lawsuits also seek trebling of d amages under the Antitrust Act and RICO. Barclays has previously settled certain claims. Two of the class action settlements where Barclays has paid $20m and $7.1m, respectively, remain subject to final court approval and/or the right of class members to o pt out of the settlement to file their own claims. Sterling LIBOR civil actions In 2016, two putative class actions filed in the SDNY against Barclays Bank PLC, BCI and other Sterling LIBOR panel banks alleging, among other things, that the defendants man ipulated the Sterling LIBOR rate in violation of the Antitrust Act, CEA and RICO, were consolidated . The defendants’ motion to dismiss the claims was granted in December 2018. The plaintiffs have appealed the dismissal. Japanese Yen LIBOR civil actions In 2012, a putative class action was filed in the SDNY against Barclays Bank PLC and other Japanese Yen LIBOR panel banks by a lead plaintiff involved in exchange-traded derivatives and members of the Japanese Bankers Association’s Euroyen Tokyo Interbank Of fered Rate (Euroyen TIBOR) panel. The complaint alleges, among other things, manipulation of the Euroyen TIBOR and Yen LIBOR rates and breaches of the CEA and the Antitrust Act. In 2014, the court dismissed the plaintiff’s antitrust claims in full, but the plaintiff’s CEA claims remain pending. In 2015, a second putative class action, making similar allegations to the above class action, was filed in the SDNY against Barclays PLC, Barclays Bank PLC and BCI. In 2017, this action was dismissed in full and the plaintiffs appealed the dismissal. The appellate court reversed the dismissal and the matter has been remanded to the lower court. SIBOR/SOR civil action In 2016, a putative class action was filed in the SDNY against Barclays PLC, Barclays Bank PLC, BCI and other defendants, alleging manipulat ion of the Singapore Interbank Offered Rate (SIBOR) and Singapore Swap Offer Rate (SOR). In October 2018, the court dismissed all claims against Barclays PLC, Barclays Bank PLC and BCI. The plaintiffs have appealed the dismissal. ICE LIBOR civil actions In 2019, several putative class actions have been filed in the SDNY against Barclays PLC, Barclays Bank PLC, BCI, other financial institution defendants and Intercontinental Exchange Inc. and certain of its affiliates (ICE), asserting antitrust claims that defendants manipulated USD LIBOR through defendants’ submissions to ICE. These actions have been consolidated . The defendants’ motion to dismiss was granted in March 2020. The plaintiffs have appealed the dismissal. Non-US benchmarks civil actions Legal proceedings (which include the claims referred to below in ‘Local authority civil actions concerning LIBOR’) have been brought or threatened against Barclays Bank PLC (and, in certain cases, Barclays Bank UK PLC) in the UK in connection with alleged manipu lation of LIBOR, EURIBOR and other benchmarks . Proceedings have also been brought in a number of other jurisdictions in Europe and Israel. Additional proceedings in other jurisdictions may be brought in the future. F oreign E xchange i nvestigations and related civil actions In 2015, the Barclays Group reached settlements totalling approximately $2.38bn with various US federal and state authorities and the FCA in relation to investigations into certain sales and trading practices in the Foreign Exch ange market. Under the related plea agreement with the US Department of Justice (DoJ), which received final court approval in January 2017, the Barclays Group agreed to a term of probation of three years, which expired in January 2020. The Barclays Group a lso continues to provide relevant information to certain authorities. The European Commission is one of a number of authorities still conducting an investigation into certain trading practices in Foreign Exchange markets. The European Commission announce d two settlements in May 2019 and the Barclays Group paid penalties totalling approximately €210m. In June 2019, the Swiss Competition Commission announced two settlements and the Barclays Group paid penalties totalling approximately CHF 27m. The financial impact of the ongoing matters is not expected to be material to the Barclays Bank Group’s operating results, cash flows or financial position. A number of individuals and corporates in a range of jurisdictions have also threatened or brought civil action s against the Barclays Group and other banks in relation to alleged manipulation of Foreign Exchange markets, and may do so in the future. Certain actions remain pending. FX opt out civil action In 2018, Barclays Bank PLC and BCI settled a consolidated action filed in the SDNY, alleging manipulation of Foreign Exchange markets (Consolidated FX Action), for a total amount of $384m. Also in 2018, a group of plaintiffs who opted out of the Consolidated FX Action filed a complaint in the SDNY against Barclay s PLC, Barclays Bank PLC, BCI and other defendants. Some of the plaintiff’s claims were dismissed in May 2020. Retail basis civil action In 2015, a putative class action was filed against several international banks, including Barclays PLC and BCI, on be half of a proposed class of individuals who exchanged currencies on a retail basis at bank branches (Retail Basis Claims). The SDNY has ruled that the Retail Basis Claims are not covered by the settlement agreement in the Consolidated FX Action. The Court subsequently dismissed all Retail Basis Claims against the Barclays Group and all other defendants. The plaintiffs have filed an amended complaint. State law FX civil action In 2017, the SDNY dismissed consolidated putative class actions brought under federal and various state laws on behalf of proposed classes of (i) stockholders of Exchange Traded Funds and others who purportedly were indirect investors in FX instruments, and (ii) investors who traded FX instruments through FX dealers or brokers not a lleged to have manipulated Foreign Exchange Rates. Barclays Bank PLC and BCI have settled the claim, which is subject to court approval. Non-US FX civil actions In addition to the actions described above, legal proceedings have been brought or are threate ned against Barclays PLC, Barclays Bank PLC, BCI and Barclays Execution Services Limited (BX) in connection with alleged manipulation of Foreign Exchange in the UK, a number of other jurisdictions in Europe, Israel and Australia and additional proceedings may be brought in the future. Metals investigations and related civil actions Barclays Bank PLC previously provided information to the DoJ , the US Commodity Futures Trading Commission and other authorities in connection with investigations into metals and metals-based financial instruments. A number of US civil complaints, each on behalf of a proposed class of plaintiffs, have been consoli dated and transferred to the SDNY . The complaints allege that Barclays Bank PLC and other members of The London Gold Market Fixing Ltd. manipulated the prices of gold and gold derivative contracts in violation of US antitrust and other federal laws. This c onsolidated putative class action remains pending. A separate US civil complaint by a proposed class of plaintiffs against a number of banks, including Barclays Bank PLC, BCI and BX, alleging manipulation of the price of silver in violation of the CEA, the Antitrust Act and state antitrust and consumer protection laws, has been dismissed as against the Barclays entities. The plaintiffs have the option to seek the court’s permission to appeal. Civil actions have also been filed in Canadian courts against Ba rclays PLC, Barclays Bank PLC, Barclays Capital Canada Inc. and BCI on behalf of proposed classes of plaintiffs alleging manipulation of gold and silver prices. US residential mortgage related civil actions There are various pending civil actions relating to US Residential Mortgage-Backed Securities (RMBS), including four actions arising from unresolved repurchase requests submitted by Trustees for certain RMBS, alleging breaches of various loan-level representations and warranties (R&Ws) made by B arclays Bank PLC and/or a subsidiary acquired in 2007 (the Acquired Subsidiary). The unresolved repurchase requests received as at 31 December 2019 had an original unpaid principal balance of approximately $2.1bn. The Trustees have also alleged that the re levant R&Ws may have been breached with respect to a greater (but unspecified) amount of loans than previously stated in the unresolved repurchase requests. These repurchase actions are ongoing. In one repurchase action, the New York Court of Appeals hel d that claims related to certain R&Ws are time-barred. Barclays Bank PLC has reached a settlement to resolve two of the repurchase actions, which is subject to final court approval. T he financial impact of the settlement is not expected to be material to t he Barclays Bank Group’s operating results, cash flows or financial position. The remaining two repurchase actions are pending. Government and agency securities civil actions and related matters Certain governmental authorities are conducting investigatio ns into activities relating to the trading of certain government and agency securities in various markets. The Barclays Group provided information in cooperation with such investigations. Civil actions have also been filed on the basis of similar allegatio ns, as described below. Treasury auction securities civil actions Consolidated putative class action complaints filed in US federal court against Barclays Bank PLC, BCI and other financial institutions under the Antitrust Act and state common law allege that the defendants (i) conspired to manipulate the US Treasury securities market and/or (ii) conspired to prevent the creation of certain platforms by boycotting or threatening to boycott such trading platforms. The defendants have filed a motion to dismiss. In addition, certain plaintiffs have filed a related, direct action against BCI and certain other financial institutions, alleging that defendants conspired to fix and manipulate the US Treasury securities market in violat ion of the Antitrust Act , the CEA and state common law. Supranational, Sovereign and Agency bonds civil actions Civil antitrust actions have been filed in the SDNY and Federal Court of Canada in Toronto against Barclays Bank PLC, BCI, BX, Barclays Capital Securities Limited and, with respect to the civil action filed in Canada only, Barclays Capital Canada, Inc. and other financial institutions alleging that the defendants conspired to fix prices and restrain competition in the market for US dollar-denomin ated Supranational, Sovereign and Agency bonds. In one of the actions filed in the SDNY, the court granted the defendants’ motion to dismiss the plaintiffs’ complaint, which the plaintiffs have appealed. The plaintiffs have voluntarily dismissed the othe r SDNY action. Variable Rate Demand Obligations civil actions Civil actions have been filed against Barclays Bank PLC and BCI and other financial institutions alleging the defendants conspired or colluded to artificially inflate interest rates set for Variable Rate Demand Obligations (VRDOs). VRDOs are municipal bonds with interest rates that re set on a periodic basis, most commonly weekly. Two actions in state court have been filed by private plaintiffs on behalf of the states of Illinois and California . Two putative class action complaints, which have been consolidated , have been filed in the S DNY. Government bond civil actions In a putative class action filed in the SDNY in 2019, plaintiffs alleged that BCI and certain other bond dealers conspired to fix the prices of US government sponsored entity bonds in violation of US antitrust law. BCI a greed to a settlement of $87m, which received final court approval in June 2020. Separately, various entities in Louisiana, including the Louisiana Attorney General and the City of Baton Rouge, have filed complaints against Barclays Bank PLC and other fina ncial institutions making similar allegations as the class action plaintiffs . In 2018, a separate putative class action against various financial institutions including Barclays PLC, Barclays Bank PLC, BCI, Barclays Bank Mexico, S.A., and certain other su bsidiaries of the Barclays Bank Group was consolidated in the SDNY. The plaintiffs asserted antitrust and state law claims arising out of an alleged conspiracy to fix the prices of Mexican Government bonds. Barclays PLC has settled the claim for $5.7m, which is subject to court approval. BDC Finance L.L.C. In 2008, BDC Finance L.L.C. (BDC) filed a complaint in the NY Supreme Court, demanding damages of $298m, alleging that Barclays Bank PLC had breached a contract in connection with a portfolio of total return swaps governed by an ISDA Master Agreement (collectively, the Agreement). Following a trial on certain liability issues, the court ruled in December 2018 that Barclays Bank PLC was not a defaulting party, which was affirmed on appeal. Barclays Bank PLC’s counter claim against BDC remains pending. In 2011, BDC’s investment advisor, BDCM Fund Adviser, L.L.C. and its parent company, Black Diamond Capital Holdings, L.L.C. also sued Barclays Bank PLC and BCI in Connecticut State Court for unspecified damages allegedly resulting from Barclays Bank PLC’s conduct relating to the Agreement, asserting claims for violation of the Connecticut Unfair Trade Practices Act and tortious interference with business and prospective business relations. This case is currently stayed . Civil a ctions in r espect of the US Anti-Terrorism Act There are a number of civil actions, on behalf of more than 4,000 plaintiffs, filed in US federal courts in the US District Court in the Eastern District of New York ( EDNY) and SDNY against Barclays Bank PLC and a number of other banks. The complaints generally allege that Barclays Bank PLC and those banks engaged in a conspiracy to facilitate US dollar-denominated transactions for the Government of Iran and various Iranian banks, which in turn funded acts of terrorism that injured or killed plaintiffs or plaintiffs’ family members. The plaintiffs seek to recover damages for pain, suffering and mental anguish under the provisions of the US Anti-Terrorism Act, which allow for the trebling of any proven damages. The court granted the defendants’ motion to dismiss three actions in the EDNY. Plaintiffs have appealed in one action. The court also granted the defendants’ motion to dismiss another action in the SDNY. The remaining actions are stayed pending decisions in these cases. Interest rate swap and credit default swap US civil actions Barclays PLC, Barclays Bank PLC and BCI, together with other financial institutions that act as market makers for interest rate swaps (IRS) are named as defendants in several antitrust class actions which were consolidated in the SDNY in 2016. The complaints allege the defendants conspired to prevent the development of exchanges for IRS and demand unspecified money damages. In 2018, trueEX LLC filed an antitrust class action in the SDNY against a number of financial institutions including Barclays PLC, Barclays Bank PLC and BCI based on similar allegations with respect to trueEX LLC’s development of an IRS platform. In 2017, Tera Group Inc. filed a separate civil antit rust action in the SDNY claiming that certain conduct alleged in the IRS cases also caused the plaintiff to suffer harm with respect to the Credit Default Swaps market. In November 2018 and July 2019, respectively, the court dismissed certain claims in bot h cases for unjust enrichment and tortious interference but denied motions to dismiss the federal and state antitrust claims, which remain pending. Odd-lot corporate bonds antitrust class action In 2020, BCI, together with other financial institutions, were named as defendants in a putative class action. The complaint alleges a conspiracy to boycott developing electronic trading platforms for odd-lots and price fixing. Plaintiffs demand unspecified money damages. Investigation into collections and reco veries relating to unsecured lending Since February 2018, the FCA has been investigating whether the Barclays Group implemented effective systems and controls with respect to collections and recoveries and whether it paid due consideration to the interest s of customers in default and arrears. The FCA investigation is at an advanced stage. HM Revenue & Customs (HMRC) assessments concerning UK Value Added Tax In 2018, HMRC issued notices that have the effect of removing certain overseas subsidiaries that h ave operations in the UK from Barclays’ UK VAT group, in which group supplies between members are generally free from VAT. The notices have retrospective effect and correspond to assessments of £181m (inclusive of interest), of which Barclays would expect to attribute an amount of approximately £128m to Barclays Bank UK PLC and £53m to Barclays Bank PLC. HMRC’s decision has been appealed to the First Tier Tribunal (Tax Chamber). Local authority civil actions concerning LIBOR Following settlement by Barclays Bank PLC of various governmental investigations concerning certain benchmark interest rate submissions referred to above in ‘Investigations into LIBOR and other benchmarks and related civil actions’, in the UK, certain local authorities have broug ht claims against Barclays Bank PLC (and, in certain cases, Barclays Bank UK PLC) asserting that they entered into loans in reliance on misrepresentations made by Barclays Bank PLC in respect of its conduct in relation to LIBOR. Barclays has applied to str ike out the claims. General The Barclays Bank Group is engaged in various other legal, competition and regulatory matters in the UK, the US and a number of other overseas jurisdictions. It is subject to legal proceedings brought by and against the Barclay s Bank Group which arise in the ordinary course of business from time to time, including (but not limited to) disputes in relation to contracts, securities, debt collection, consumer credit, fraud, trusts, client assets, competition, data management and pr otection, money laundering, financial crime, employment, environmental and other statutory and common law issues. The Barclays Bank Group is also subject to enquiries and examinations, requests for information, audits, investigations and legal and other p roceedings by regulators, governmental and other public bodies in connection with (but not limited to) consumer protection measures, compliance with legislation and regulation, wholesale trading activity and other areas of banking and business activities i n which the Barclays Bank Group is or has been engaged. The Barclays Bank Group is cooperating with the relevant authorities and keeping all relevant agencies briefed as appropriate in relation to these matters and others described in this note on an ongoi ng basis. At the present time , Barclays Bank PLC does not expect the ultimate resolution of any of these other matters to have a material adverse effect on its financial position. However, in light of the uncertainties involved in such matters and the mat ters specifically described in this note, there can be no assurance that the outcome of a particular matter or matters (including formerly active matters or those matters arising after the date of this note) will not be material to Barclays Bank PLC’s resu lts, operations or cash flow for a particular period, depending on, among other things, the amount of the loss resulting from the matter(s) and the amount of profit otherwise reported for the reporting period.

Related party transactions

Related party transactions	6 Months Ended
	Jun. 30, 2020
15. Related party transactions
Related party transactions	15 . Related party transactions Related party transactions in the half year ended 30 June 2020 were similar in nature to those disclosed in the Barclays Bank PLC Annual Report on Form 20-F 2019 . Amounts included in the Barclays Bank Group’s financial statements with other Barclays Group companies are as follows: Half year ended 30.06.20 Half year ended 30.06.19 Parent Fellow subsidiaries Parent Fellow subsidiaries £m £m £m £m Total income (346) 31 (275) 32 Operating expenses (34) (1,443) (46) (1,546) As at 30.06.20 As at 31.12.19 Parent Fellow subsidiaries Parent Fellow subsidiaries £m £m £m £m Total assets 5,793 1,952 2,097 2,165 Total liabilities 27,262 2,531 24,876 1,600 Except for the above, no related party transactions that have taken place in the half year ended 30 June 2020 have materially affected the financial position or performance of the Barclays Bank Group during this period.

Barclays Bank PLC parent conden

Barclays Bank PLC parent condensed balance sheet	6 Months Ended
	Jun. 30, 2020
16. Barclays Bank PLC parent condensed balance sheet
Barclays Bank PLC parent condensed balance sheet	16 . Barclays Bank PLC parent condensed balance s heet As at As at 30.06.20 31.12.19 Assets £m £m Cash and balances at central banks 128,461 112,287 Cash collateral and settlement balances 115,391 75,822 Loans and advances at amortised cost 186,606 161,663 Reverse repurchase agreements and other similar secured lending 22,926 4,939 Trading portfolio assets 73,646 79,079 Financial assets at fair value through the income statement 187,575 162,500 Derivative financial instruments 304,807 229,338 Financial assets at fair value through other comprehensive income 53,475 43,760 Investment in associates and joint ventures 16 119 Investment in subsidiaries 16,653 16,105 Goodwill and intangible assets 114 115 Property, plant and equipment 419 426 Current tax assets 1,045 946 Deferred tax assets 1,203 1,115 Retirement benefit assets 2,797 2,062 Other assets 1,234 845 Total assets 1,096,368 891,121 Liabilities Deposits at amortised cost 268,286 240,631 Cash collateral and settlement balances 94,744 59,448 Repurchase agreements and other similar secured borrowing 9,778 9,185 Debt securities in issue 34,926 19,883 Subordinated liabilities 36,937 33,205 Trading portfolio liabilities 53,953 45,130 Financial liabilities designated at fair value 234,510 207,765 Derivative financial instruments 306,288 225,607 Current tax liabilities 287 221 Deferred tax liabilities 1,083 80 Retirement benefit liabilities 105 104 Other liabilities 3,297 2,807 Provisions 885 630 Total liabilities 1,045,079 844,696 Equity Called up share capital and share premium 2,348 2,348 Other equity instruments 11,089 11,089 Other reserves 2,763 678 Retained earnings 35,089 32,310 Total equity 51,289 46,425 Total liabilities and equity 1,096,368 891,121 In H120, Barclays Bank PLC sold its investments in Barclaycard International Payments Limited, Entercard Group AB, Carnegie Holdings Limited and Barclays Mercantile Business Finance Limited t o Barclays Principal Investments Limited, a fellow group company, at their fair values of £ 102 m, £ 292 m, £ 188 m and £ 154 m respectively. Barclays Bank PLC recorded profit on disposal of £ 56 m, £ 192 m, £ 133 m and £ 23 m in respect of these transactions. The Barclays Bank Group recorded profit on disposal of £ 4 5 m, £ 13 m, £ 57 m and £ 1 1 m. Barclays Bank PLC considers the carrying value of its investment in subsidiaries to be fully rec overable .

Other disclosures - Credit Risk

Other disclosures - Credit Risk	6 Months Ended
	Jun. 30, 2020
Other disclosures - Credit Risk
Other disclosures - Credit Risk	Loans an d advances at amortised cost by product The table below presents a breakdown of loans and advances at amortised cost and the impairment allowance with s tage allocation by asse t classification . Impairment allowance under IFRS 9 considers both the drawn and the undrawn counterparty exposure. For retail portfolios, the total impairment allowance is allocated to the drawn exposure to the extent that the allowance does not exceed the exposure, as ECL is not reported separately. Any excess is reported o n the liability side of the balance sheet as a provision. For wholesale portfolios, the impairment allowance on the undrawn exposure is reported on the liability side of the balance sheet as a provision. Stage 2 As at 30.06.20 Stage 1 Not past due <=30 days past due >30 days past due Total Stage 3 Total 1 Gross exposure £m £m £m £m £m £m £m Home loans 9,670 638 62 179 879 1,142 11,691 Credit cards, unsecured loans and other retail lending 20,659 6,077 206 348 6,631 2,036 29,326 Wholesale loans 75,699 33,288 2,961 634 36,883 2,161 114,743 Total 106,028 40,003 3,229 1,161 44,393 5,339 155,760 Impairment allowance Home loans 12 28 11 15 54 350 416 Credit cards, unsecured loans and other retail lending 456 1,096 86 158 1,340 1,511 3,307 Wholesale loans 206 654 92 24 770 858 1,834 Total 674 1,778 189 197 2,164 2,719 5,557 Net exposure Home loans 9,658 610 51 164 825 792 11,275 Credit cards, unsecured loans and other retail lending 20,203 4,981 120 190 5,291 525 26,019 Wholesale loans 75,493 32,634 2,869 610 36,113 1,303 112,909 Total 105,354 38,225 3,040 964 42,229 2,620 150,203 Coverage ratio % % % % % % % Home loans 0.1 4.4 17.7 8.4 6.1 30.6 3.6 Credit cards, unsecured loans and other retail lending 2.2 18.0 41.7 45.4 20.2 74.2 11.3 Wholesale loans 0.3 2.0 3.1 3.8 2.1 39.7 1.6 Total 0.6 4.4 5.9 17.0 4.9 50.9 3.6 As at 31.12.19 Gross exposure £m £m £m £m £m £m £m Home loans 9,604 544 48 82 674 1,056 11,334 Credit cards, unsecured loans and other retail lending 29,541 3,806 304 340 4,450 2,129 36,120 Wholesale loans 89,200 6,489 354 672 7,515 1,163 97,878 Total 128,345 10,839 706 1,094 12,639 4,348 145,332 Impairment allowance Home loans 16 24 9 7 40 292 348 Credit cards, unsecured loans and other retail lending 362 523 99 162 784 1,471 2,617 Wholesale loans 114 219 8 7 234 383 731 Total 492 766 116 176 1,058 2,146 3,696 Net exposure Home loans 9,588 520 39 75 634 764 10,986 Credit cards, unsecured loans and other retail lending 29,179 3,283 205 178 3,666 658 33,503 Wholesale loans 89,086 6,270 346 665 7,281 780 97,147 Total 127,853 10,073 590 918 11,581 2,202 141,636 Coverage ratio % % % % % % % Home loans 0.2 4.4 18.8 8.5 5.9 27.7 3.1 Credit cards, unsecured loans and other retail lending 1.2 13.7 32.6 47.6 17.6 69.1 7.2 Wholesale loans 0.1 3.4 2.3 1.0 3.1 32.9 0.7 Total 0.4 7.1 16.4 16.1 8.4 49.4 2.5 1 Other financial assets subject to impairment ex cluded in the table above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income, accrued income and sundry debtors. These have a total gross exposure of £ 187.1 bn (December 2019: £ 125.5 bn) and impairment allowance of £ 168 m (December 2019: £ 22 m). This compri ses £ 33 m (December 2019: £ 10 m) ECL on £ 181.7 bn (December 2019: £ 124.7 bn) Stage 1 assets, £ 20 m ( December 201 9 : £ 2 m) on £ 5.3 bn (December 2019: £ 0.8 bn) Stage 2 fair value through other comprehensive income assets and £ 115 m (December 2019: £ 10 m) on £ 115 m (December 2019: £ 10 m) Stage 3 other assets. Loan commitments and financial guarantee contracts have total ECL of £ 593 m (December 2019: £ 252 m). Movement in gross exposures and impairment allowance including provisions for loan commitments and financial guarantees The following tables present a reconciliation of the opening to the closing balance of the exposure and impairment allowance. Explanation of the terms: 12-month ECL, lifetime ECL and credit-impaired are included in the Barclays Bank PLC Annual Report 2019 on page 149 . Barclays Bank Group does not hold any material purchased or originated credit-impaired assets as at period end. Transfers between stages in the tables have been reflected as if they had taken place at the beginning of the year. The movements are measured over a 6-month period. Loans and advances at amortised cost Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Home loans As at 1 January 2020 9,604 16 674 40 1,056 292 11,334 348 Transfers from Stage 1 to Stage 2 (394) (1) 394 1 - - - - Transfers from Stage 2 to Stage 1 114 3 (114) (3) - - - - Transfers to Stage 3 (64) - (67) (6) 131 6 - - Transfers from Stage 3 17 - 31 1 (48) (1) - - Business activity in the year 410 - - - - - 410 - Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 334 (6) 28 22 39 61 401 77 Final repayments (351) - (67) (1) (29) (1) (447) (2) Disposals - - - - - - - - Write-offs 1 - - - - (7) (7) (7) (7) As at 30 June 2020 2 9,670 12 879 54 1,142 350 11,691 416 Credit cards, unsecured loans and other retail lending As at 1 January 2020 29,541 362 4,450 784 2,129 1,471 36,120 2,617 Transfers from Stage 1 to Stage 2 (3,520) (78) 3,520 78 - - - - Transfers from Stage 2 to Stage 1 948 134 (948) (134) - - - - Transfers to Stage 3 (153) (10) (397) (171) 550 181 - - Transfers from Stage 3 21 4 50 5 (71) (9) - - Business activity in the year 2,416 23 66 11 5 1 2,487 35 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes (3,447) 55 259 824 160 513 (3,028) 1,392 Final repayments (1,472) (10) (94) (12) (63) (4) (1,629) (26) Transfers to Barclays Group 3 (2,182) (16) (92) (25) (47) (41) (2,321) (82) Disposals 4 (1,493) (8) (183) (20) (71) (45) (1,747) (73) Write-offs 1 - - - - (556) (556) (556) (556) As at 30 June 2020 2 20,659 456 6,631 1,340 2,036 1,511 29,326 3,307 1 In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642m ( H1 201 9 : £ 580 m). 2 Other financial assets subject to impairment excluded in the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £187.1 bn (De cember 201 9 : £1 25.5 bn) and impairment allow ance of £168m (December 2019: £22 m). This comprises £ 33m ECL (December 2019: £10m) on £181.7 bn Stage 1 assets (December 201 9 : £1 24.7bn), £20 m (December 201 9: £2m) on £5.3 bn Stage 2 fair value through other compreh ensive income assets, cash collateral and settle ment assets (December 2019: £0.8bn) and £115 m (Dece mber 2019: £10m) on £115 m Stage 3 other assets (December 201 9: £10m) . 3 Transfe rs to Barclays Group reported within Credit cards, unsecured loans and other retail lending portfolio includes the transfer of the Barclays Partner Finance retail portfolio to Barclays Principal Investments Limited during the period . 4 Disposals reported within Credit cards, unsecured loans and other retail lending portfolio includ e sale of the motor financing business from the Barclays Partner Finance business. Loans and advances at amortised cost Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Wholesale loans As at 1 January 2020 89,200 114 7,515 234 1,163 383 97,878 731 Transfers from Stage 1 to Stage 2 (24,051) (55) 24,051 55 - - - - Transfers from Stage 2 to Stage 1 1,589 12 (1,589) (12) - - - - Transfers to Stage 3 (688) (2) (507) (39) 1,195 41 - - Transfers from Stage 3 139 - 109 1 (248) (1) - - Business activity in the year 19,309 19 4,128 212 42 12 23,479 243 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10,474 136 4,791 334 349 539 15,614 1,009 Final repayments (20,273) (18) (1,606) (15) (260) (36) (22,139) (69) Disposals - - (9) - - - (9) - Write-offs 1 - - - - (80) (80) (80) (80) As at 30 June 2020 2 75,699 206 36,883 770 2,161 858 114,743 1,834 Reconciliation of ECL movement to impairment charge/(release) for the period £m Home loans 75 Credit cards, unsecured loans and other retail lending 1,319 Wholesale loans 1,183 ECL movement excluding assets derecognised due to disposals and write-offs 2,577 Recoveries and reimbursements 3 (280) Exchange and other adjustments 4 (103) Impairment charge on loan commitments and other financial guarantees 331 Impairment charge on other financial assets 2 149 As at 30 June 2020 2,674 1 In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642 m ( H1 201 9 : £ 580 m). 2 Other financial assets subject to impairment excluded from the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £ 187.1 bn ( December 201 9 : £ 1 25.5 bn) and impairment allow ance of £ 168 m (December 2019: £ 22 m). This comprises £ 33 m ECL (December 2019: £ 10 m) on £ 181.7 bn Stage 1 assets (December 201 9 : £ 1 24.7 bn), £ 20 m (December 201 9: £ 2 m) on £ 5.3 bn Stage 2 fair value through other compr ehensive income assets, cash collateral and settle ment assets (December 2019: £ 0.8 bn) and £ 115 m (Dece mber 2019: £ 10 m) on £ 115 m Stage 3 other assets (December 201 9: £ 10 m ). 3 Recoveries and reimbursements includes a net gain in relation to reimbursements from guarantee contracts held with third parties of £ 279 m and post write off recoveries of £ 1 m. 4 Includes foreign exchange and interest and fees in suspense . Loan commitments and financial guarantees Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Home loans As at 1 January 2020 34 - - - - - 34 - Net transfers between stages - - - - - - - - Business activity in the year 136 - - - - - 136 - Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10 - - - - - 10 - Limit management (19) - - - - - (19) - As at 30 June 2020 161 - - - - - 161 - Credit cards, unsecured loans and other retail lending As at 1 January 2020 78,257 22 2,053 15 67 14 80,377 51 Net transfers between stages (2,633) 2 2,394 (1) 239 (1) - - Business activity in the year 3,641 1 57 - 1 1 3,699 2 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 5,735 16 (74) 27 (273) 7 5,388 50 Limit management (5,165) - (261) - (4) (3) (5,430) (3) As at 30 June 2020 79,835 41 4,169 41 30 18 84,034 100 Wholesale loans As at 1 January 2020 183,001 63 12,053 97 636 41 195,690 201 Net transfers between stages (38,412) (22) 37,380 15 1,032 7 - - Business activity in the year 24,878 7 3,389 30 107 - 28,374 37 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10,996 13 794 285 (232) (18) 11,558 280 Limit management (36,233) (7) (2,764) (18) (239) - (39,236) (25) As at 30 June 2020 144,230 54 50,852 409 1,304 30 196,386 493 Measurement uncertainty The Barclays Bank Group uses a five-scenario model to calculate ECL. Absent the conditions surrounding the COVID-19 pandemic, a Baseline scenario is typically generated based on an external consensus forecast assembled from key sources, including HM Treasury (short and medium-term forecasts), Bloomberg (based on median of economic forecasts) and the Urban Land Institute (for US House Prices). In addition, two adverse scenarios (Downside 1 and Downside 2) and two favourable scenar ios (Upside 1 and Upside 2) are derived, with associated probability weightings. The adverse scenarios are typically calibrated to a similar severity to internal stress tests, whilst also considering IFRS 9 specific sensitivities and non-linearity. Downsid e 2 is typically benchmarked to the Bank of England’s annual cyclical scenarios and to the most severe scenario from Moody’s inventory, but is not designed to be the same. The favourable scenarios are generally calibrated to be symmetric to the adverse sce narios, subject to a ceiling calibrated to relevant recent favourable benchmark scenarios. The scenarios include eight economic variables (GDP, unemployment, House Price Index (HPI) and base rates in both the UK and US markets), and expanded variables usin g statistical models based on historical correlations. The upside and downside shocks are designed to evolve over a five-year stress horizon, with all five scenarios converging to a steady state after approximately eight years . To calculate ECL a probabili ty weight is assigned to each scenario. Following the onset of the COVID-19 pandemic, the Barclays Bank Group generated a Baseline scenario in March 2020 that reflected the most recent economic forecasts available in the market (combined with internal assu mptions) and estimated impacts from significant support measures taken by Barclays, central banks and governments across the Barclays Bank Group’s key markets. This scenario assumed a strong contraction in GDP and a sharp rise in unemployment in 2020 acros s both the UK and US, and required a recalibration of probability weights. This scenario was superseded by a further revised Baseline scenario generated in June 2020 , based broadly on the latest economic forecasts which recognise some the impacts from the various support measures still in place across the Barclays Bank Group’s key markets. Upside and downside scenarios were also regenerated in June 2020 (together with the revised Baseline scenario, the “COVID-19 Scenarios”) . The downside scenarios reflect sl ower economic growth than the Baseline with social distancing measures continuing to drag GDP. Economic growth begins to recover later in 2020 in Downside 1 but only in 2021 in the Downside 2 scenario. The upside scenarios reflect a faster rebound in econo mic growth than the Baseline with a sharp decrease in infection rates and an almost fully reopened economy. Scenario weights were also revised in June 2020 with greater weight being applied to the tail scenarios (Upside 2 and Downside 2). This reflects the significant range of uncertainty in the economic environment compared to previous quarters given the conditions surrounding the COVID-19 pandemic. The economic environment remains uncertain and future impairment charges may be subject to further volatilit y (including from changes to macroeconomic variable forecasts) depending on the longevity of the COVID-19 pandemic and related containment measures, as well as the longer term effectiveness of central bank, government and other support measures. The tables on next page show the key macroeconomic variables used in the COVID-19 Baseline scenario and the probability weights applied to each respective scenario. Baseline average macroeconomic variables used in the calculation of ECL 2020 2021 2022 Expected Worst Point As at 30.06.20 % % % % UK GDP 1 (8.7) 6.1 2.9 (51.4) UK unemployment 2 6.6 6.5 4.4 8.0 UK HPI 3 0.6 2.0 - (1.5) UK bank rate 0.2 0.1 0.1 0.1 US GDP 1 (4.2) 4.4 (0.3) (30.4) US unemployment 4 9.3 7.6 5.5 13.4 US HPI 5 1.1 1.8 (0.8) (1.9) US federal funds rate 0.5 0.3 0.3 0.3 1 Avera ge Real GDP seasonally adjusted change in year; e xpected worst point using Seasonally Adjusted Annual Rate, SAAR . 2 Average UK unemployment rate 16-year+ . 3 Change in average yearly UK HPI = Halifax All Houses, All Buyers index, relative to prior year end; worst point is based on cumulative drawdown in year relative to prior year end. 4 Average US civilian unemployment rate 16-year+. 5 Change in average yearly US HPI = FHFA house price index, relative to prior year end; worst point is based on cumulative dr awdown in year relative to prior year end. Scenario probability weighting Upside 2 Upside 1 Baseline Downside 1 Downside 2 % % % % % As at 30.06.20 Scenario probability weighting 20.3 22.4 25.4 17.5 14.4 As at 31.12.19 Scenario probability weighting 10.1 23.1 40.8 22.7 3.3 Macroeconomic variables (specific bases) 1 Upside 2 Upside 1 Baseline Downside 1 Downside 2 As at 30.06.20 % % % % % UK GDP 2 32.7 26.4 5.4 1.6 1.2 UK unemployment 3 3.5 3.6 4.9 9.6 10.9 UK HPI 4 45.3 27.2 2.3 (15.0) (33.4) UK bank rate 3 0.1 0.1 0.2 0.3 0.2 US GDP 2 19.1 13.5 3.3 2.0 (3.1) US unemployment 3 4.1 4.4 6.3 15.4 18.7 US HPI 4 32.3 20.9 2.3 (8.8) (19.7) US federal funds rate 3 0.3 0.3 0.3 0.4 0.4 As at 31.12.19 UK GDP 2 4.2 2.9 1.6 0.2 (4.7) UK unemployment 3 3.4 3.8 4.2 5.7 8.7 UK HPI 4 46.0 32.0 3.1 (8.2) (32.4) UK bank rate 3 0.5 0.5 0.7 2.8 4.0 US GDP 2 4.2 3.3 1.9 0.4 (3.4) US unemployment 3 3.0 3.5 3.9 5.3 8.5 US HPI 4 37.1 23.3 3.0 0.5 (19.8) US federal funds rate 3 1.5 1.5 1.7 3.0 3.5 As at 30.06.19 UK GDP 2 4.5 3.1 1.7 0.3 (4.1) UK unemployment 3 3.4 3.9 4.3 5.7 8.8 UK HPI 4 46.4 32.6 3.2 (0.5) (32.1) UK bank rate 3 0.8 0.8 1.0 2.5 4.0 US GDP 2 4.8 3.7 2.1 0.4 (3.3) US unemployment 3 3.0 3.4 3.7 5.2 8.4 US HPI 4 36.9 30.2 4.1 - (17.4) US federal funds rate 3 2.3 2.3 2.7 3.0 3.5 1 UK GDP = Real GDP growth seasonally adjusted; UK unemployment = UK unemployment rate 16-year+; UK HPI = Halifax All Houses, All Buyers Index; US GDP = Real GDP growth seasonally adjusted; US unemployment = US civilian unemployment rate 16-year+; US HPI = FHFA house price index. Forecast period based on 20 quarters from Q3 2020. 2 Upside scenario is the highest annual average growth rate based on seasonally adjusted quarterly annualised rate; 5-year average in Baseline; downside is the lowest annual a verage g rowth rate based on seasonally adjusted quarterly annualised rate. 3 L owest yearly average in Upside scenarios; 5-year average in Baseline; highest yearly average in Downside scenarios. 4 Cumulative growth (trough to peak) in Upside scenarios; 5-year average i n Baseline; cumulative fall (peak-to-trough) in Downside scenarios. Macroeconomic variables (5-year averages) 1 Upside 2 Upside 1 Baseline Downside 1 Downside 2 As at 30.06.20 % % % % % UK GDP 8.9 7.2 5.4 5.2 2.8 UK unemployment 4.0 4.3 4.9 6.2 7.2 UK HPI 7.8 5.0 2.3 (1.4) (5.5) UK bank rate 0.4 0.3 0.2 0.1 0.1 US GDP 5.9 4.4 3.3 2.7 1.8 US unemployment 4.4 5.1 6.3 8.4 10.9 US HPI 5.8 3.9 2.3 (0.5) (3.1) US federal funds rate 0.6 0.5 0.3 0.3 0.3 As at 31.12.19 UK GDP 3.2 2.4 1.6 0.8 (0.7) UK unemployment 3.5 3.9 4.2 5.4 7.7 UK HPI 7.9 5.7 3.1 (1.1) (6.5) UK bank rate 0.5 0.5 0.7 2.5 3.7 US GDP 3.5 2.8 1.9 1.0 (0.5) US unemployment 3.1 3.6 3.9 5.0 7.5 US HPI 6.5 4.3 3.0 1.3 (3.7) US federal funds rate 1.6 1.7 1.7 2.9 3.4 As at 30.06.19 UK GDP 3.4 2.6 1.7 0.9 (0.6) UK unemployment 3.7 4.0 4.3 5.1 7.9 UK HPI 7.9 5.8 3.2 0.9 (6.4) UK bank rate 0.8 0.8 1.0 2.3 3.7 US GDP 3.7 3.0 2.1 1.1 (0.5) US unemployment 3.1 3.5 3.7 4.7 7.4 US HPI 6.5 5.4 4.1 2.4 (2.6) US federal funds rate 2.3 2.3 2.7 3.0 3.4 UK GDP = Real GDP growth seasonally adjusted; UK unemployment = UK unemployment rate 16-year+; UK HPI = Halifax All Houses, All Buyers Index; US GDP = Real GDP growth seasonally adjusted; US unemployment = US civilian unemployment rate 16-year+; US HPI = FHFA house price index .

Segmental reporting (Tables)

Segmental reporting (Tables)	6 Months Ended
	Jun. 30, 2020
2. Segmental Reporting
Analysis of results by business	Analysis of results by business Corporate and Investment Bank Consumer, Cards and Payments Head Office Barclays Bank Group Half year ended 30.06.20 £m £m £m £m Total income 6,973 1,742 (78) 8,637 Credit impairment charges (1,320) (1,299) (55) (2,674) Net operating income/(expenses) 5,653 443 (133) 5,963 Operating expenses (3,458) (1,053) (37) (4,548) Litigation and conduct (4) (8) (7) (19) Total operating expenses (3,462) (1,061) (44) (4,567) Other net income/(expenses) 1 12 115 - 127 Profit/(loss) before tax 2,203 (503) (177) 1,523 As at 30.06.20 £bn £bn £bn £bn Total assets 1,017.1 66.0 12.9 1,096.0 Corporate and Investment Bank Consumer, Cards and Payments Head Office Barclays Bank Group Half year ended 30.06.19 £m £m £m £m Total income 5,149 2,193 (220) 7,122 Credit impairment charges (96) (396) (18) (510) Net operating income/(expenses) 5,053 1,797 (238) 6,612 Operating expenses (3,589) (1,207) (45) (4,841) Litigation and conduct (26) (4) (39) (69) Total operating expenses (3,615) (1,211) (84) (4,910) Other net income/(expenses) 1 15 16 (8) 23 Profit/(loss) before tax 1,453 602 (330) 1,725 As at 31.12.19 £bn £bn £bn £bn Total assets 799.6 65.7 11.4 876.7 1 Other net income/(expenses) represents the share of post-tax results of associates and joint ventures, profit (or loss) on disposal of subsidiaries, associates and joint ventures and gains on acquisitions .
Split of income by geographic region	Split of income by geographic region 1 Half year ended Half year ended 30.06.20 30.06.19 £m £m UK 2,835 2,089 Europe 1,240 783 Americas 3,872 3,680 Africa and Middle East 23 41 Asia 667 529 Total 8,637 7,122 T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated .

Net fee and commission income (

Net fee and commission income (Tables)	6 Months Ended
	Jun. 30, 2020
3. Net fee and commission income
Total fees in scope of IFRS 15 Revenues from Contracts with Customers	Fee and commission income is disaggregated below and includes a total for fees in scope of IFRS 15, Revenue from Contracts with Customers: Corporate and Investment Bank Consumer, Cards and Payments Head Office Total Half year ended 30.06.20 £m £m £m £m Fee type Transactional 177 968 - 1,145 Advisory 260 46 - 306 Brokerage and execution 654 31 - 685 Underwriting and syndication 1,468 - - 1,468 Other 35 100 19 154 Total revenue from contracts with customers 2,594 1,145 19 3,758 Other non-contract fee income 57 3 - 60 Fee and commission income 2,651 1,148 19 3,818 Fee and commission expense (441) (497) (1) (939) Net fee and commission income 2,210 651 18 2,879 Corporate and Investment Bank Consumer, Cards and Payments Head Office Total Half year ended 30.06.19 £m £m £m £m Fee type Transactional 185 1,168 - 1,353 Advisory 364 41 - 405 Brokerage and execution 512 24 - 536 Underwriting and syndication 1,240 - - 1,240 Other 62 124 16 202 Total revenue from contracts with customers 2,363 1,357 16 3,736 Other non-contract fee income 54 - - 54 Fee and commission income 2,417 1,357 16 3,790 Fee and commission expense (350) (611) - (961) Net fee and commission income 2,067 746 16 2,829

Tax (Tables)

Tax (Tables)	6 Months Ended
	Jun. 30, 2020
4. Tax
Deferred tax assets and liabilities	As at As at 30.06.20 31.12.19 Deferred tax assets and liabilities £m £m USA 2,168 2,052 Other territories 471 408 Deferred tax assets 2,639 2,460 Deferred tax liabilities - UK (1,084) (80) Analysis of deferred tax assets Temporary differences 2,184 1,937 Tax losses 455 523 Deferred tax assets 2,639 2,460

Dividends on ordinary shares (T

Dividends on ordinary shares (Tables)	6 Months Ended
	Jun. 30, 2020
5. Dividends on ordinary shares
Dividends on ordinary shares	Half year ended 30.06.20 Half year ended 30.06.19 Dividends paid during the period £m £m Ordinary shares 263 - Preference shares 28 27 Total 291 27

Fair value of financial instr_2

Fair value of financial instruments (Tables)	6 Months Ended
	Jun. 30, 2020
6. Fair value of financial instruments
Assets and liabilities held at fair value disaggregated by valuation technique (fair value hierarchy)	The following table shows Barclays Bank Group’s assets and liabilities that are held at fair value disaggregated by valuation technique (fair value hierarchy) and balance sheet classification: Valuation technique using Quoted market prices Observable inputs Significant unobservable inputs (Level 1) (Level 2) (Level 3) Total As at 30.06.20 £m £m £m £m Trading portfolio assets 49,106 57,277 3,078 109,461 Financial assets at fair value through the income statement 1,824 148,894 4,822 155,540 Derivative financial instruments 8,761 291,142 7,747 307,650 Financial assets at fair value through other comprehensive income 13,172 41,642 347 55,161 Investment property - - 10 10 Total assets 72,863 538,955 16,004 627,822 Trading portfolio liabilities (31,333) (19,045) - (50,378) Financial liabilities designated at fair value (123) (221,664) (355) (222,142) Derivative financial instruments (8,445) (290,612) (8,932) (307,989) Total liabilities (39,901) (531,321) (9,287) (580,509) As at 31.12.19 Trading portfolio assets 59,968 51,105 2,264 113,337 Financial assets at fair value through the income statement 10,300 115,008 4,162 129,470 Derivative financial instruments 5,439 221,048 3,154 229,641 Financial assets at fair value through other comprehensive income 11,577 33,400 429 45,406 Investment property - - 13 13 Total assets 87,284 420,561 10,022 517,867 Trading portfolio liabilities (19,645) (15,567) - (35,212) Financial liabilities designated at fair value (82) (204,021) (343) (204,446) Derivative financial instruments (5,305) (219,646) (3,989) (228,940) Total liabilities (25,032) (439,234) (4,332) (468,598) The following table shows Barclays Bank Group’s Level 3 assets and liabilities that are held at fair value disaggregated by product type: As at 30.06.20 As at 31.12.19 Assets Liabilities Assets Liabilities £m £m £m £m Interest rate derivatives 4,152 (3,772) 605 (812) Foreign exchange derivatives 655 (588) 291 (298) Credit derivatives 193 (456) 539 (342) Equity derivatives 2,730 (4,099) 1,710 (2,528) Commodity derivatives 17 (17) 9 (9) Corporate debt 516 - 521 - Reverse repurchase and repurchase agreements - (176) - (167) Non-asset backed loans 4,827 - 3,280 - Asset backed securities 740 - 756 - Equity cash products 1,145 - 1,228 - Private equity investments 126 - 112 - Other 1 903 (179) 971 (176) Total 16,004 (9,287) 10,022 (4,332) 1 Other includes commercial real estate loans, fund and fund-linked products, asset backed loans, issued debt, commercial paper, government sponsored debt and investment property.
Analysis of movements in Level 3 assets and liabilities	Level 3 movement analysis The following table summarises the movements in the balances of Level 3 assets and liabilities during the period. The table shows gains and losses and includes amounts for all financial assets and liabilities that are held at fair value transferred to and from Level 3 during the period. Transfers have been reflected as if they had taken place at the beginning of the year. Asset and liability moves between Level 2 and Level 3 are primarily due to i) an increase or decrease in o bservable market activity related to an input or ii) a change in the significance of the unobservable input, with assets and liabilities classified as Level 3 if an unobservable input is deemed significant. Level 3 movement analysis Purchases Sales Issues Settle- ments Total gains and losses in the period recognised in the income statement Total gains or losses recognised in OCI Transfers As at 30.06.20 As at 01.01.20 Trading income Other income In Out £m £m £m £m £m £m £m £m £m £m £m Corporate debt 120 25 - - - (26) - - 4 (17) 106 Non-asset backed loans 974 1,927 (740) - (4) (111) - - 97 (320) 1,823 Asset backed securities 656 249 (224) - (76) (12) - - 41 (11) 623 Equity cash products 392 2 (4) - - (67) - - 28 (4) 347 Other 122 47 - - - 2 - - 8 - 179 Trading portfolio assets 2,264 2,250 (968) - (80) (214) - - 178 (352) 3,078 Non-asset backed loans 1,964 1,050 (270) - (112) 110 - - - - 2,742 Equity cash products 835 14 - - - (22) (29) - - - 798 Private equity investments 113 1 (2) - - 2 4 - 20 (12) 126 Other 1,250 1,865 (2,017) - (13) (8) 55 - 24 - 1,156 Financial assets at fair value through the income statement 4,162 2,930 (2,289) - (125) 82 30 - 44 (12) 4,822 Non-asset backed loans 343 79 - - (157) - - (3) - - 262 Asset backed securities 86 - (1) - - 1 - (1) - - 85 Financial assets at fair value through other comprehensive income 429 79 (1) - (157) 1 - (4) - - 347 Investment property 13 - (1) - - - (2) - 2 (2) 10 Trading portfolio liabilities - - - - - - - - - - - Issued debt (146) - - (3) - - - - (22) 14 (157) Other (197) - - - - (12) (1) - - 12 (198) Financial liabilities designated at fair value (343) - - (3) - (12) (1) - (22) 26 (355) Interest rate derivatives (206) 17 - - 10 268 1 - 300 (10) 380 Foreign exchange derivatives (7) - - - (12) 89 - - 5 (8) 67 Credit derivatives 198 (258) 11 - (376) 151 1 - 2 8 (263) Equity derivatives (820) (447) (1) - 17 (90) - - (5) (23) (1,369) Commodity derivatives - - - - - - - - - - - Net derivative financial instruments 1 (835) (688) 10 - (361) 418 2 - 302 (33) (1,185) Total 5,690 4,571 (3,249) (3) (723) 275 29 (4) 504 (373) 6,717 Derivative financial instruments are represented on a net basis. On a gross basis, derivative financial assets were £ 7,747 m and derivative financial liabilities were £ 8,932 m. Level 3 movement analysis Purchases Sales Issues Settle- ments Total gains and losses in the period recognised in the income statement Transfers As at 30.06.19 As at 01.01.19 Trading income Other income In Out £m £m £m £m £m £m £m £m £m £m Government and government sponsored debt 14 2 - - - - - - (14) 2 Corporate debt 388 70 (24) - (31) 14 - 32 (74) 375 Non-asset backed loans 2,263 1,235 (1,260) - (19) 12 - 19 (90) 2,160 Asset backed securities 664 81 (127) - - 5 - 16 (29) 610 Equity cash products 136 48 (13) - - (2) - 116 (20) 265 Other 148 - - - (1) (10) - - (1) 136 Trading portfolio assets 3,613 1,436 (1,424) - (51) 19 - 183 (228) 3,548 Non-asset backed loans 1,836 2 - - (132) 70 - - (1) 1,775 Equity cash products 559 9 - - (10) 4 178 - - 740 Private equity investments 191 4 (3) - (1) - (6) - - 185 Other 2,064 2,334 (2,619) - (2) 17 9 24 (840) 987 Financial assets at fair value through the income statement 4,650 2,349 (2,622) - (145) 91 181 24 (841) 3,687 Non-asset backed loans 353 48 - - (55) - - - (218) 128 Asset backed securities - 40 - - - - - - - 40 Equity cash products 2 - - - - - - - - 2 Financial assets at fair value through other comprehensive income 355 88 - - (55) - - - (218) 170 Investment property 9 - - - - - (1) - - 8 Trading portfolio liabilities (3) - - - - 2 - (5) - (6) - Certificates of deposit, commercial paper and other money market instruments (10) - - - 1 - (1) (11) - (21) Issued debt (251) - - (16) 1 5 - (3) 1 (263) Financial liabilities designated at fair value (261) - - (16) 2 5 (1) (14) 1 (284) Interest rate derivatives 22 (3) - - 76 116 - (107) 145 249 Foreign exchange derivatives 7 - - - (12) (41) - (51) 17 (80) Credit derivatives 1,050 (63) 4 - (3) 86 - 2 3 1,079 Equity derivatives (607) (122) (5) - 23 89 - (16) 292 (346) Commodity derivatives - - - - - - - - - - Net derivative financial instruments 1 472 (188) (1) - 84 250 - (172) 457 902 Total 8,835 3,685 (4,047) (16) (165) 367 179 16 (829) 8,025 Derivative financial instruments are presented on a net basis. On a gross basis, derivative financial assets were £ 5,701 m and derivative financial liabilities were £ 4,799 m.
Unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	Unrealised g ains and losses on Level 3 financial assets and liabilities The following table discloses the unrealised gains a nd losses recognised in the period arising on Level 3 financial assets and liabilities held at the pe riod end. Half year ended 30.06.20 Half year ended 30.06.19 Income statement Other compre-hensive income Total Income statement Other compre-hensive income Total Trading income Other income Trading income Other income £m £m £m £m £m £m £m £m Trading portfolio assets (177) - - (177) 21 - - 21 Financial assets at fair value through the income statement 126 (24) - 102 75 178 - 253 Financial assets at fair value through other comprehensive income - - (2) (2) - - - - Investment properties - (2) - (2) - (1) - (1) Trading portfolio liabilities - - - - 2 - - 2 Financial liabilities designated at fair value (16) (1) - (17) 6 - - 6 Net derivative financial instruments 248 - - 248 212 - - 212 Total 181 (27) (2) 152 316 177 - 493
Sensitivity analysis of valuations using unobservable inputs	Valuation techniques and sensitivity analysis Sensitivity analysis is performed on products with significant unobservable inputs (Level 3) to generate a range of reasonably possible alternative valuations. The sensitivity methodologies applied take account of the nature of valuation techniques used, as well as the availability and reliability of observable proxy and historical data and the impact of using alternative models. Sensitivity analysis of valuations using unobservable inputs As at 30.06.20 As at 31.12.19 Favourable changes Unfavourable changes Favourable changes Unfavourable changes Income statement Equity Income Statement Equity Income statement Equity Income Statement Equity £m £m £m £m £m £m £m £m Interest rate derivatives 138 - (256) - 44 - (127) - Foreign exchange derivatives 7 - (11) - 5 - (7) - Credit derivatives 127 - (109) - 73 - (47) - Equity derivatives 151 - (158) - 114 - (119) - Commodity derivatives - - - - - - - - Corporate debt 23 - (23) 11 - (16) - Non-asset backed loans 159 4 (322) (4) 125 8 (228) (8) Equity cash products 164 - (206) - 123 - (175) - Private equity investments 18 - (19) - 16 - (25) - Other 1 2 - (2) - 1 - (1) - Total 789 4 (1,106) (4) 512 8 (745) (8) Other includes commercial real estate loans, fund and fund-linked products , asset backed loans, issued debt, commercial paper, government sponsored debt and investment propert y.
Fair value adjustments	Fair value adjustments Key balance sheet valuation adjustments are quantified below: As at As at 30.06.20 31.12.19 £m £m Exit price adjustments derived from market bid-offer spreads (564) (420) Uncollateralised derivative funding (181) (57) Derivative credit valuation adjustments (378) (135) Derivative debit valuation adjustments 148 155
Comparison of carrying amounts and fair values for assets and liabilities not held at fair value	Comparison of carrying amounts and fair values for assets and liabilities not held at fair value Valuation methodologies employed in calculating the fair value of financial assets and liabilities measured at amortised cost are consistent with the Barclays Bank PLC Annual Report on Form 20-F 2019 disclosure. The following table summarises the fair value of financial assets and liabilities measured at amortised cost on the Barclays Bank Group’s balance sheet: As at 30.06.20 As at 31.12.19 Carrying amount Fair value Carrying amount Fair value Financial assets £m £m £m £m Loans and advances at amortised cost 150,203 149,511 141,636 141,251 Reverse repurchase agreements and other similar secured lending 19,811 19,811 1,731 1,731 Financial liabilities Deposits at amortised cost (245,737) (245,758) (213,881) (213,897) Repurchase agreements and other similar secured borrowing (4,033) (4,033) (2,032) (2,032) Debt securities in issue (50,496) (50,568) (33,536) (33,529) Subordinated liabilities (36,965) (37,675) (33,425) (34,861)

Subordinated Liabilities (Table

Subordinated Liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
7. Subordinated liabilities
Subordinated liabilities	7. Subordinated liabilities Half year ended Year ended 30.06.20 31.12.19 £m £m Opening balance as at 1 January 33,425 35,327 Issuances 3,162 6,785 Redemptions (2,814) (7,804) Other 3,192 (883) Closing balance 36,965 33,425

Provisions (Tables)

Provisions (Tables)	6 Months Ended
	Jun. 30, 2020
8. Provisions
Provisions	8. Provisions As at As at 30.06.20 31.12.19 £m £m Customer redress 27 71 Legal, competition and regulatory matters 250 374 Redundancy and restructuring 34 63 Undrawn contractually committed facilities and guarantees 593 252 Onerous contracts 9 20 Sundry provisions 172 171 Total 1,085 951

Other reserves (Tables)

Other reserves (Tables)	6 Months Ended
	Jun. 30, 2020
12. Other reserves
Other reserves	12. Other reserves As at As at 30.06.20 31.12.19 £m £m Currency translation reserve 4,769 3,383 Fair value through other comprehensive income reserve (2) (139) Cash flow hedging reserve 1,453 388 Own credit reserve 123 (373) Other reserves (24) (24) Total 6,319 3,235

Contingent liabilities and co_2

Contingent liabilities and commitments (Tables)	6 Months Ended
	Jun. 30, 2020
13. Contingent liabilities and commitments
Contingent liabilities and commitments	As at As at 30.06.20 31.12.19 Contingent liabilities £m £m Guarantees and letters of credit pledged as collateral security 15,825 17,006 Performance guarantees, acceptances and endorsements 6,589 6,771 Total 22,414 23,777 Commitments Documentary credits and other short-term trade related transactions 1,162 1,291 Standby facilities, credit lines and other commitments 264,376 268,736 Total 265,538 270,027

Related party transactions (Tab

Related party transactions (Tables)	6 Months Ended
	Jun. 30, 2020
15. Related party transactions
Barclays Bank Group's financial statements with other Barclays Group companies	Amounts included in the Barclays Bank Group’s financial statements with other Barclays Group companies are as follows: Half year ended 30.06.20 Half year ended 30.06.19 Parent Fellow subsidiaries Parent Fellow subsidiaries £m £m £m £m Total income (346) 31 (275) 32 Operating expenses (34) (1,443) (46) (1,546) As at 30.06.20 As at 31.12.19 Parent Fellow subsidiaries Parent Fellow subsidiaries £m £m £m £m Total assets 5,793 1,952 2,097 2,165 Total liabilities 27,262 2,531 24,876 1,600

Barclays Bank PLC parent cond_2

Barclays Bank PLC parent condensed balance sheet (Tables)	6 Months Ended
	Jun. 30, 2020
Barclays Bank PLC [member]
Condensed Balance Sheet Statements, Captions [Line Items]
Barclays Bank PLC condensed balance sheet	As at As at 30.06.20 31.12.19 Assets £m £m Cash and balances at central banks 128,461 112,287 Cash collateral and settlement balances 115,391 75,822 Loans and advances at amortised cost 186,606 161,663 Reverse repurchase agreements and other similar secured lending 22,926 4,939 Trading portfolio assets 73,646 79,079 Financial assets at fair value through the income statement 187,575 162,500 Derivative financial instruments 304,807 229,338 Financial assets at fair value through other comprehensive income 53,475 43,760 Investment in associates and joint ventures 16 119 Investment in subsidiaries 16,653 16,105 Goodwill and intangible assets 114 115 Property, plant and equipment 419 426 Current tax assets 1,045 946 Deferred tax assets 1,203 1,115 Retirement benefit assets 2,797 2,062 Other assets 1,234 845 Total assets 1,096,368 891,121 Liabilities Deposits at amortised cost 268,286 240,631 Cash collateral and settlement balances 94,744 59,448 Repurchase agreements and other similar secured borrowing 9,778 9,185 Debt securities in issue 34,926 19,883 Subordinated liabilities 36,937 33,205 Trading portfolio liabilities 53,953 45,130 Financial liabilities designated at fair value 234,510 207,765 Derivative financial instruments 306,288 225,607 Current tax liabilities 287 221 Deferred tax liabilities 1,083 80 Retirement benefit liabilities 105 104 Other liabilities 3,297 2,807 Provisions 885 630 Total liabilities 1,045,079 844,696 Equity Called up share capital and share premium 2,348 2,348 Other equity instruments 11,089 11,089 Other reserves 2,763 678 Retained earnings 35,089 32,310 Total equity 51,289 46,425 Total liabilities and equity 1,096,368 891,121

Other disclosures - Credit Ri_2

Other disclosures - Credit Risk (Tables)	6 Months Ended
	Jun. 30, 2020
Other disclosures - Credit Risk
Loans and advances at amortised cost by stage and product	Loans an d advances at amortised cost by product The table below presents a breakdown of loans and advances at amortised cost and the impairment allowance with s tage allocation by asse t classification . Stage 2 As at 30.06.20 Stage 1 Not past due <=30 days past due >30 days past due Total Stage 3 Total 1 Gross exposure £m £m £m £m £m £m £m Home loans 9,670 638 62 179 879 1,142 11,691 Credit cards, unsecured loans and other retail lending 20,659 6,077 206 348 6,631 2,036 29,326 Wholesale loans 75,699 33,288 2,961 634 36,883 2,161 114,743 Total 106,028 40,003 3,229 1,161 44,393 5,339 155,760 Impairment allowance Home loans 12 28 11 15 54 350 416 Credit cards, unsecured loans and other retail lending 456 1,096 86 158 1,340 1,511 3,307 Wholesale loans 206 654 92 24 770 858 1,834 Total 674 1,778 189 197 2,164 2,719 5,557 Net exposure Home loans 9,658 610 51 164 825 792 11,275 Credit cards, unsecured loans and other retail lending 20,203 4,981 120 190 5,291 525 26,019 Wholesale loans 75,493 32,634 2,869 610 36,113 1,303 112,909 Total 105,354 38,225 3,040 964 42,229 2,620 150,203 Coverage ratio % % % % % % % Home loans 0.1 4.4 17.7 8.4 6.1 30.6 3.6 Credit cards, unsecured loans and other retail lending 2.2 18.0 41.7 45.4 20.2 74.2 11.3 Wholesale loans 0.3 2.0 3.1 3.8 2.1 39.7 1.6 Total 0.6 4.4 5.9 17.0 4.9 50.9 3.6 As at 31.12.19 Gross exposure £m £m £m £m £m £m £m Home loans 9,604 544 48 82 674 1,056 11,334 Credit cards, unsecured loans and other retail lending 29,541 3,806 304 340 4,450 2,129 36,120 Wholesale loans 89,200 6,489 354 672 7,515 1,163 97,878 Total 128,345 10,839 706 1,094 12,639 4,348 145,332 Impairment allowance Home loans 16 24 9 7 40 292 348 Credit cards, unsecured loans and other retail lending 362 523 99 162 784 1,471 2,617 Wholesale loans 114 219 8 7 234 383 731 Total 492 766 116 176 1,058 2,146 3,696 Net exposure Home loans 9,588 520 39 75 634 764 10,986 Credit cards, unsecured loans and other retail lending 29,179 3,283 205 178 3,666 658 33,503 Wholesale loans 89,086 6,270 346 665 7,281 780 97,147 Total 127,853 10,073 590 918 11,581 2,202 141,636 Coverage ratio % % % % % % % Home loans 0.2 4.4 18.8 8.5 5.9 27.7 3.1 Credit cards, unsecured loans and other retail lending 1.2 13.7 32.6 47.6 17.6 69.1 7.2 Wholesale loans 0.1 3.4 2.3 1.0 3.1 32.9 0.7 Total 0.4 7.1 16.4 16.1 8.4 49.4 2.5 1 Other financial assets subject to impairment ex cluded in the table above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income, accrued income and sundry debtors. These have a total gross exposure of £ 187.1 bn (December 2019: £ 125.5 bn) and impairment allowance of £ 168 m (December 2019: £ 22 m). This compri ses £ 33 m (December 2019: £ 10 m) ECL on £ 181.7 bn (December 2019: £ 124.7 bn) Stage 1 assets, £ 20 m ( December 201 9 : £ 2 m) on £ 5.3 bn (December 2019: £ 0.8 bn) Stage 2 fair value through other comprehensive income assets and £ 115 m (December 2019: £ 10 m) on £ 115 m (December 2019: £ 10 m) Stage 3 other assets. Loan commitments and financial guarantee contracts have total ECL of £ 593 m (December 2019: £ 252 m).
Movement in gross exposure and impairment allowance including provisions for loan commitments and financial guarantees	Movement in gross exposures and impairment allowance including provisions for loan commitments and financial guarantees The following tables present a reconciliation of the opening to the closing balance of the exposure and impairment allowance. Explanation of the terms: 12-month ECL, lifetime ECL and credit-impaired are included in the Barclays Bank PLC Annual Report 2019 on page 149 . Barclays Bank Group does not hold any material purchased or originated credit-impaired assets as at period end. Transfers between stages in the tables have been reflected as if they had taken place at the beginning of the year. The movements are measured over a 6-month period. Loans and advances at amortised cost Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Home loans As at 1 January 2020 9,604 16 674 40 1,056 292 11,334 348 Transfers from Stage 1 to Stage 2 (394) (1) 394 1 - - - - Transfers from Stage 2 to Stage 1 114 3 (114) (3) - - - - Transfers to Stage 3 (64) - (67) (6) 131 6 - - Transfers from Stage 3 17 - 31 1 (48) (1) - - Business activity in the year 410 - - - - - 410 - Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 334 (6) 28 22 39 61 401 77 Final repayments (351) - (67) (1) (29) (1) (447) (2) Disposals - - - - - - - - Write-offs 1 - - - - (7) (7) (7) (7) As at 30 June 2020 2 9,670 12 879 54 1,142 350 11,691 416 Credit cards, unsecured loans and other retail lending As at 1 January 2020 29,541 362 4,450 784 2,129 1,471 36,120 2,617 Transfers from Stage 1 to Stage 2 (3,520) (78) 3,520 78 - - - - Transfers from Stage 2 to Stage 1 948 134 (948) (134) - - - - Transfers to Stage 3 (153) (10) (397) (171) 550 181 - - Transfers from Stage 3 21 4 50 5 (71) (9) - - Business activity in the year 2,416 23 66 11 5 1 2,487 35 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes (3,447) 55 259 824 160 513 (3,028) 1,392 Final repayments (1,472) (10) (94) (12) (63) (4) (1,629) (26) Transfers to Barclays Group 3 (2,182) (16) (92) (25) (47) (41) (2,321) (82) Disposals 4 (1,493) (8) (183) (20) (71) (45) (1,747) (73) Write-offs 1 - - - - (556) (556) (556) (556) As at 30 June 2020 2 20,659 456 6,631 1,340 2,036 1,511 29,326 3,307 1 In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642m ( H1 201 9 : £ 580 m). 2 Other financial assets subject to impairment excluded in the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £187.1 bn (De cember 201 9 : £1 25.5 bn) and impairment allow ance of £168m (December 2019: £22 m). This comprises £ 33m ECL (December 2019: £10m) on £181.7 bn Stage 1 assets (December 201 9 : £1 24.7bn), £20 m (December 201 9: £2m) on £5.3 bn Stage 2 fair value through other compreh ensive income assets, cash collateral and settle ment assets (December 2019: £0.8bn) and £115 m (Dece mber 2019: £10m) on £115 m Stage 3 other assets (December 201 9: £10m) . 3 Transfe rs to Barclays Group reported within Credit cards, unsecured loans and other retail lending portfolio includes the transfer of the Barclays Partner Finance retail portfolio to Barclays Principal Investments Limited during the period . 4 Disposals reported within Credit cards, unsecured loans and other retail lending portfolio includ e sale of the motor financing business from the Barclays Partner Finance business. Loans and advances at amortised cost Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Wholesale loans As at 1 January 2020 89,200 114 7,515 234 1,163 383 97,878 731 Transfers from Stage 1 to Stage 2 (24,051) (55) 24,051 55 - - - - Transfers from Stage 2 to Stage 1 1,589 12 (1,589) (12) - - - - Transfers to Stage 3 (688) (2) (507) (39) 1,195 41 - - Transfers from Stage 3 139 - 109 1 (248) (1) - - Business activity in the year 19,309 19 4,128 212 42 12 23,479 243 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10,474 136 4,791 334 349 539 15,614 1,009 Final repayments (20,273) (18) (1,606) (15) (260) (36) (22,139) (69) Disposals - - (9) - - - (9) - Write-offs 1 - - - - (80) (80) (80) (80) As at 30 June 2020 2 75,699 206 36,883 770 2,161 858 114,743 1,834 Reconciliation of ECL movement to impairment charge/(release) for the period £m Home loans 75 Credit cards, unsecured loans and other retail lending 1,319 Wholesale loans 1,183 ECL movement excluding assets derecognised due to disposals and write-offs 2,577 Recoveries and reimbursements 3 (280) Exchange and other adjustments 4 (103) Impairment charge on loan commitments and other financial guarantees 331 Impairment charge on other financial assets 2 149 As at 30 June 2020 2,674 1 In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642 m ( H1 201 9 : £ 580 m). 2 Other financial assets subject to impairment excluded from the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £ 187.1 bn ( December 201 9 : £ 1 25.5 bn) and impairment allow ance of £ 168 m (December 2019: £ 22 m). This comprises £ 33 m ECL (December 2019: £ 10 m) on £ 181.7 bn Stage 1 assets (December 201 9 : £ 1 24.7 bn), £ 20 m (December 201 9: £ 2 m) on £ 5.3 bn Stage 2 fair value through other compr ehensive income assets, cash collateral and settle ment assets (December 2019: £ 0.8 bn) and £ 115 m (Dece mber 2019: £ 10 m) on £ 115 m Stage 3 other assets (December 201 9: £ 10 m ). 3 Recoveries and reimbursements includes a net gain in relation to reimbursements from guarantee contracts held with third parties of £ 279 m and post write off recoveries of £ 1 m. 4 Includes foreign exchange and interest and fees in suspense . Loan commitments and financial guarantees Stage 1 Stage 2 Stage 3 Total Gross exposure ECL Gross exposure ECL Gross exposure ECL Gross exposure ECL £m £m £m £m £m £m £m £m Home loans As at 1 January 2020 34 - - - - - 34 - Net transfers between stages - - - - - - - - Business activity in the year 136 - - - - - 136 - Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10 - - - - - 10 - Limit management (19) - - - - - (19) - As at 30 June 2020 161 - - - - - 161 - Credit cards, unsecured loans and other retail lending As at 1 January 2020 78,257 22 2,053 15 67 14 80,377 51 Net transfers between stages (2,633) 2 2,394 (1) 239 (1) - - Business activity in the year 3,641 1 57 - 1 1 3,699 2 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 5,735 16 (74) 27 (273) 7 5,388 50 Limit management (5,165) - (261) - (4) (3) (5,430) (3) As at 30 June 2020 79,835 41 4,169 41 30 18 84,034 100 Wholesale loans As at 1 January 2020 183,001 63 12,053 97 636 41 195,690 201 Net transfers between stages (38,412) (22) 37,380 15 1,032 7 - - Business activity in the year 24,878 7 3,389 30 107 - 28,374 37 Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes 10,996 13 794 285 (232) (18) 11,558 280 Limit management (36,233) (7) (2,764) (18) (239) - (39,236) (25) As at 30 June 2020 144,230 54 50,852 409 1,304 30 196,386 493
Baseline average macroeconomic variables used in the calculation of ECL and the respective scenario probability weighting	Baseline average macroeconomic variables used in the calculation of ECL 2020 2021 2022 Expected Worst Point As at 30.06.20 % % % % UK GDP 1 (8.7) 6.1 2.9 (51.4) UK unemployment 2 6.6 6.5 4.4 8.0 UK HPI 3 0.6 2.0 - (1.5) UK bank rate 0.2 0.1 0.1 0.1 US GDP 1 (4.2) 4.4 (0.3) (30.4) US unemployment 4 9.3 7.6 5.5 13.4 US HPI 5 1.1 1.8 (0.8) (1.9) US federal funds rate 0.5 0.3 0.3 0.3 1 Avera ge Real GDP seasonally adjusted change in year; e xpected worst point using Seasonally Adjusted Annual Rate, SAAR . 2 Average UK unemployment rate 16-year+ . 3 Change in average yearly UK HPI = Halifax All Houses, All Buyers index, relative to prior year end; worst point is based on cumulative drawdown in year relative to prior year end. 4 Average US civilian unemployment rate 16-year+. 5 Change in average yearly US HPI = FHFA house price index, relative to prior year end; worst point is based on cumulative dr awdown in year relative to prior year end. Scenario probability weighting Upside 2 Upside 1 Baseline Downside 1 Downside 2 % % % % % As at 30.06.20 Scenario probability weighting 20.3 22.4 25.4 17.5 14.4 As at 31.12.19 Scenario probability weighting 10.1 23.1 40.8 22.7 3.3 Macroeconomic variables (specific bases) 1 Upside 2 Upside 1 Baseline Downside 1 Downside 2 As at 30.06.20 % % % % % UK GDP 2 32.7 26.4 5.4 1.6 1.2 UK unemployment 3 3.5 3.6 4.9 9.6 10.9 UK HPI 4 45.3 27.2 2.3 (15.0) (33.4) UK bank rate 3 0.1 0.1 0.2 0.3 0.2 US GDP 2 19.1 13.5 3.3 2.0 (3.1) US unemployment 3 4.1 4.4 6.3 15.4 18.7 US HPI 4 32.3 20.9 2.3 (8.8) (19.7) US federal funds rate 3 0.3 0.3 0.3 0.4 0.4 As at 31.12.19 UK GDP 2 4.2 2.9 1.6 0.2 (4.7) UK unemployment 3 3.4 3.8 4.2 5.7 8.7 UK HPI 4 46.0 32.0 3.1 (8.2) (32.4) UK bank rate 3 0.5 0.5 0.7 2.8 4.0 US GDP 2 4.2 3.3 1.9 0.4 (3.4) US unemployment 3 3.0 3.5 3.9 5.3 8.5 US HPI 4 37.1 23.3 3.0 0.5 (19.8) US federal funds rate 3 1.5 1.5 1.7 3.0 3.5 As at 30.06.19 UK GDP 2 4.5 3.1 1.7 0.3 (4.1) UK unemployment 3 3.4 3.9 4.3 5.7 8.8 UK HPI 4 46.4 32.6 3.2 (0.5) (32.1) UK bank rate 3 0.8 0.8 1.0 2.5 4.0 US GDP 2 4.8 3.7 2.1 0.4 (3.3) US unemployment 3 3.0 3.4 3.7 5.2 8.4 US HPI 4 36.9 30.2 4.1 - (17.4) US federal funds rate 3 2.3 2.3 2.7 3.0 3.5 1 UK GDP = Real GDP growth seasonally adjusted; UK unemployment = UK unemployment rate 16-year+; UK HPI = Halifax All Houses, All Buyers Index; US GDP = Real GDP growth seasonally adjusted; US unemployment = US civilian unemployment rate 16-year+; US HPI = FHFA house price index. Forecast period based on 20 quarters from Q3 2020. 2 Upside scenario is the highest annual average growth rate based on seasonally adjusted quarterly annualised rate; 5-year average in Baseline; downside is the lowest annual a verage g rowth rate based on seasonally adjusted quarterly annualised rate. 3 L owest yearly average in Upside scenarios; 5-year average in Baseline; highest yearly average in Downside scenarios. 4 Cumulative growth (trough to peak) in Upside scenarios; 5-year average i n Baseline; cumulative fall (peak-to-trough) in Downside scenarios. Macroeconomic variables (5-year averages) 1 Upside 2 Upside 1 Baseline Downside 1 Downside 2 As at 30.06.20 % % % % % UK GDP 8.9 7.2 5.4 5.2 2.8 UK unemployment 4.0 4.3 4.9 6.2 7.2 UK HPI 7.8 5.0 2.3 (1.4) (5.5) UK bank rate 0.4 0.3 0.2 0.1 0.1 US GDP 5.9 4.4 3.3 2.7 1.8 US unemployment 4.4 5.1 6.3 8.4 10.9 US HPI 5.8 3.9 2.3 (0.5) (3.1) US federal funds rate 0.6 0.5 0.3 0.3 0.3 As at 31.12.19 UK GDP 3.2 2.4 1.6 0.8 (0.7) UK unemployment 3.5 3.9 4.2 5.4 7.7 UK HPI 7.9 5.7 3.1 (1.1) (6.5) UK bank rate 0.5 0.5 0.7 2.5 3.7 US GDP 3.5 2.8 1.9 1.0 (0.5) US unemployment 3.1 3.6 3.9 5.0 7.5 US HPI 6.5 4.3 3.0 1.3 (3.7) US federal funds rate 1.6 1.7 1.7 2.9 3.4 As at 30.06.19 UK GDP 3.4 2.6 1.7 0.9 (0.6) UK unemployment 3.7 4.0 4.3 5.1 7.9 UK HPI 7.9 5.8 3.2 0.9 (6.4) UK bank rate 0.8 0.8 1.0 2.3 3.7 US GDP 3.7 3.0 2.1 1.1 (0.5) US unemployment 3.1 3.5 3.7 4.7 7.4 US HPI 6.5 5.4 4.1 2.4 (2.6) US federal funds rate 2.3 2.3 2.7 3.0 3.4 UK GDP = Real GDP growth seasonally adjusted; UK unemployment = UK unemployment rate 16-year+; UK HPI = Halifax All Houses, All Buyers Index; US GDP = Real GDP growth seasonally adjusted; US unemployment = US civilian unemployment rate 16-year+; US HPI = FHFA house price index . For GDP and HPI, numbers represent average of seasonally adjusted quarterly annualised rates. Forecast period based on 20 quarters from Q3 2020”.

Segmental reporting (Narrative)

Segmental reporting (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020
2. Segmental Reporting
Description of basis for attributing revenues from external customers to individual countries	The geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated.

Segmental reporting - Analysis

Segmental reporting - Analysis of results by business (Details) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disclosure of operating segments [line items]
Total income	[1]	£ 8,637	£ 7,122
Credit impairment charges		(2,674)	(510)
Net operating income/(expenses)		5,963	6,612
Operating expenses		(4,548)	(4,841)
Litigation and conduct		(19)	(69)
Operating expenses		(4,567)	(4,910)
Other net income/(expenses)	[2]	127	23
Profit/(loss) before tax		1,523	1,725
Total assets		1,095,958		£ 876,672
Operating segments [member] | Corporate and Investment bank [member]
Disclosure of operating segments [line items]
Total income		6,973	5,149
Credit impairment charges		(1,320)	(96)
Net operating income/(expenses)		5,653	5,053
Operating expenses		(3,458)	(3,589)
Litigation and conduct		(4)	(26)
Operating expenses		(3,462)	(3,615)
Other net income/(expenses)	[2]	12	15
Profit/(loss) before tax		2,203	1,453
Total assets		1,017,100		799,600
Operating segments [member] | Consumer Payments and Private Bank [member]
Disclosure of operating segments [line items]
Total income		1,742	2,193
Credit impairment charges		(1,299)	(396)
Net operating income/(expenses)		443	1,797
Operating expenses		(1,053)	(1,207)
Litigation and conduct		(8)	(4)
Operating expenses		(1,061)	(1,211)
Other net income/(expenses)	[2]	115	16
Profit/(loss) before tax		(503)	602
Total assets		66,000		65,700
Head Office [member]
Disclosure of operating segments [line items]
Total income		(78)	(220)
Credit impairment charges		(55)	(18)
Net operating income/(expenses)		(133)	(238)
Operating expenses		(37)	(45)
Litigation and conduct		(7)	(39)
Operating expenses		(44)	(84)
Other net income/(expenses)	[2]	0	(8)
Profit/(loss) before tax		(177)	£ (330)
Total assets		£ 12,900		£ 11,400
[1]	T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated
[2]	Other net income/(expenses) represents the share of post-tax results of associates and joint ventures, profit (or loss) on disposal of subsidiaries, associates and joint ventures and gains on acquisitions

Segmental reporting - Split of

Segmental reporting - Split of income by geographic region (Details) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Disclosure of operating segments [line items]
Total income	[1]	£ 8,637	£ 7,122
UK [member]
Disclosure of operating segments [line items]
Total income	[1]	2,835	2,089
Europe [member]
Disclosure of operating segments [line items]
Total income	[1]	1,240	783
Americas [member]
Disclosure of operating segments [line items]
Total income	[1]	3,872	3,680
Africa and middle east [member]
Disclosure of operating segments [line items]
Total income	[1]	23	41
Asia [member]
Disclosure of operating segments [line items]
Total income	[1]	£ 667	£ 529
[1]	T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated

Net fee and commission income_2

Net fee and commission income (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Fee and commission income [abstract]
Revenue from contracts with customers	£ 3,758	£ 3,736
Other non-contract fee income	60	54
Fee and commission income	3,818	3,790
Fee and commission expenses	(939)	(961)
Net fee and commission income	2,879	2,829
Transactional member]
Fee and commission income [abstract]
Revenue from contracts with customers	1,145	1,353
Advisory [member]
Fee and commission income [abstract]
Revenue from contracts with customers	306	405
Brokerage and execution [member]
Fee and commission income [abstract]
Revenue from contracts with customers	685	536
Underwriting and syndication [member]
Fee and commission income [abstract]
Revenue from contracts with customers	1,468	1,240
Other [member]
Fee and commission income [abstract]
Revenue from contracts with customers	154	202
Operating segments [member] | Corporate and Investment bank [member]
Fee and commission income [abstract]
Revenue from contracts with customers	2,594	2,363
Other non-contract fee income	57	54
Fee and commission income	2,651	2,417
Fee and commission expenses	(441)	(350)
Net fee and commission income	2,210	2,067
Operating segments [member] | Corporate and Investment bank [member] | Transactional member]
Fee and commission income [abstract]
Revenue from contracts with customers	177	185
Operating segments [member] | Corporate and Investment bank [member] | Advisory [member]
Fee and commission income [abstract]
Revenue from contracts with customers	260	364
Operating segments [member] | Corporate and Investment bank [member] | Brokerage and execution [member]
Fee and commission income [abstract]
Revenue from contracts with customers	654	512
Operating segments [member] | Corporate and Investment bank [member] | Underwriting and syndication [member]
Fee and commission income [abstract]
Revenue from contracts with customers	1,468	1,240
Operating segments [member] | Corporate and Investment bank [member] | Other [member]
Fee and commission income [abstract]
Revenue from contracts with customers	35	62
Operating segments [member] | Consumer Payments and Private Bank [member]
Fee and commission income [abstract]
Revenue from contracts with customers	1,145	1,357
Other non-contract fee income	3	0
Fee and commission income	1,148	1,357
Fee and commission expenses	(497)	(611)
Net fee and commission income	651	746
Operating segments [member] | Consumer Payments and Private Bank [member] | Transactional member]
Fee and commission income [abstract]
Revenue from contracts with customers	968	1,168
Operating segments [member] | Consumer Payments and Private Bank [member] | Advisory [member]
Fee and commission income [abstract]
Revenue from contracts with customers	46	41
Operating segments [member] | Consumer Payments and Private Bank [member] | Brokerage and execution [member]
Fee and commission income [abstract]
Revenue from contracts with customers	31	24
Operating segments [member] | Consumer Payments and Private Bank [member] | Underwriting and syndication [member]
Fee and commission income [abstract]
Revenue from contracts with customers	0	0
Operating segments [member] | Consumer Payments and Private Bank [member] | Other [member]
Fee and commission income [abstract]
Revenue from contracts with customers	100	124
Head Office [member]
Fee and commission income [abstract]
Revenue from contracts with customers	19	16
Other non-contract fee income	0	0
Fee and commission income	19	16
Fee and commission expenses	(1)	0
Net fee and commission income	18	16
Head Office [member] | Transactional member]
Fee and commission income [abstract]
Revenue from contracts with customers	0	0
Head Office [member] | Advisory [member]
Fee and commission income [abstract]
Revenue from contracts with customers	0	0
Head Office [member] | Brokerage and execution [member]
Fee and commission income [abstract]
Revenue from contracts with customers	0	0
Head Office [member] | Underwriting and syndication [member]
Fee and commission income [abstract]
Revenue from contracts with customers	0	0
Head Office [member] | Other [member]
Fee and commission income [abstract]
Revenue from contracts with customers	£ 19	£ 16

Net fee and commission income_3

Net fee and commission income (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020
Transactional member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Description of methods used to recognise revenue from contracts with customers	Transactional fees are service charges on deposit accounts, cash management services and transactional processing fees. This includes interchange and merchant fee income generated from credit and bank card usage.
Advisory [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Description of methods used to recognise revenue from contracts with customers	Advisory fees are generated from asset management services and advisory services related to mergers, acquisitions and financial restructuring.
Brokerage and execution [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Description of methods used to recognise revenue from contracts with customers	Brokerage and execution fees are earned for executing client transactions with exchanges and over-the-counter markets and assisting clients in clearing transactions.
Underwriting and syndication [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Description of methods used to recognise revenue from contracts with customers	Underwriting and syndication fees are earned for the distribution of client equity or debt securities, and the arrangement and administration of a loan syndication. This includes commitment fees to provide loan financing.

Tax (Narrative) (Details)

Tax (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
4. Tax
Tax charge	£ 230	£ 260
Average effective tax rate	15.10%	15.10%

Tax - Deferred tax assets and l

Tax - Deferred tax assets and liabilities (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Analysis of net deferred tax
Deferred tax assets	£ 2,639	£ 2,460
Deferred tax liabilities	(1,084)	(80)
Temporary differences [member]
Analysis of net deferred tax
Deferred tax assets	2,184	1,937
Tax losses [member]
Analysis of net deferred tax
Deferred tax assets	455	523
US
Analysis of net deferred tax
Deferred tax assets	2,168	2,052
Other territories [member]
Analysis of net deferred tax
Deferred tax assets	£ 471	£ 408

Dividends on ordinary shares (D

Dividends on ordinary shares (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Dividends paid, ordinary shares	£ 263	£ 233
Dividends paid, preference shares	28	£ 14
Total	291		£ 27
Capital contribution from Barclays PLC	£ 1,500		995
Equity attributable to owners of parent [member]
Dividends paid, ordinary shares			0
Dividends paid, preference shares			27
Total			27
Capital contribution from Barclays PLC			£ 995

Fair value of financial instr_3

Fair value of financial instruments - Assets and liabilities held at fair value disaggregated by valuation technique (fair value hierarchy) and balance sheet classification (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Trading portfolio assets	£ 109,461	£ 113,337
Financial assets at fair value through the income statement	155,540	129,470
Derivative financial instruments	307,650	229,641
Financial assets at fair value through other comprehensive income	55,161	45,406
Trading portfolio liabilities	(50,378)	(35,212)
Financial liabilities designated at fair value	(222,142)	(204,446)
Derivative financial liabilities	(307,989)	(228,940)
At fair value [member]
Disclosure of detailed information about financial instruments [line items]
Trading portfolio assets	109,461	113,337
Financial assets at fair value through the income statement	155,540	129,470
Derivative financial instruments	307,650	229,641
Financial assets at fair value through other comprehensive income	55,161	45,406
Investment property	10	13
Total assets	627,822	517,867
Trading portfolio liabilities	(50,378)	(35,212)
Financial liabilities designated at fair value	(222,142)	(204,446)
Derivative financial liabilities	(307,989)	(228,940)
Total liabilities	(580,509)	(468,598)
Quoted market prices (Level 1) [member] | At fair value [member]
Disclosure of detailed information about financial instruments [line items]
Trading portfolio assets	49,106	59,968
Financial assets at fair value through the income statement	1,824	10,300
Derivative financial instruments	8,761	5,439
Financial assets at fair value through other comprehensive income	13,172	11,577
Investment property	0	0
Total assets	72,863	87,284
Trading portfolio liabilities	(31,333)	(19,645)
Financial liabilities designated at fair value	(123)	(82)
Derivative financial liabilities	(8,445)	(5,305)
Total liabilities	(39,901)	(25,032)
Observable inputs (Level 2) [member] | At fair value [member]
Disclosure of detailed information about financial instruments [line items]
Trading portfolio assets	57,277	51,105
Financial assets at fair value through the income statement	148,894	115,008
Derivative financial instruments	291,142	221,048
Financial assets at fair value through other comprehensive income	41,642	33,400
Investment property	0	0
Total assets	538,955	420,561
Trading portfolio liabilities	(19,045)	(15,567)
Financial liabilities designated at fair value	(221,664)	(204,021)
Derivative financial liabilities	(290,612)	(219,646)
Total liabilities	(531,321)	(439,234)
Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	16,004	10,022
Total liabilities	(9,287)	(4,332)
Significant unobservable inputs (Level 3) [member] | At fair value [member]
Disclosure of detailed information about financial instruments [line items]
Trading portfolio assets	3,078	2,264
Financial assets at fair value through the income statement	4,822	4,162
Derivative financial instruments	7,747	3,154
Financial assets at fair value through other comprehensive income	347	429
Investment property	10	13
Total assets	16,004	10,022
Trading portfolio liabilities	0	0
Financial liabilities designated at fair value	(355)	(343)
Derivative financial liabilities	(8,932)	(3,989)
Total liabilities	£ (9,287)	£ (4,332)

Fair value of financial instr_4

Fair value of financial instruments - Level 3 assets and liabilities held at fair value disaggregated by product type (Details) - Significant unobservable inputs (Level 3) [member] - GBP (£) £ in Millions		Jun. 30, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		£ 16,004	£ 10,022
Financial liabilities, at fair value		(9,287)	(4,332)
Asset-backed securities [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		740	756
Financial liabilities, at fair value		0	0
Corporate debt [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		516	521
Financial liabilities, at fair value		0	0
Reverse repurchase and repurchase agreements [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		0	0
Financial liabilities, at fair value		(176)	(167)
Non-asset backed loans [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		4,827	3,280
Financial liabilities, at fair value		0	0
Equity cash products [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		1,145	1,228
Financial liabilities, at fair value		0	0
Private equity investments [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		126	112
Financial liabilities, at fair value		0	0
Other [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	[1]	903	971
Financial liabilities, at fair value	[1]	(179)	(176)
Interest rate derivatives [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		4,152	605
Financial liabilities, at fair value		(3,772)	(812)
Foreign exchange derivatives [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		655	291
Financial liabilities, at fair value		(588)	(298)
Credit derivatives [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		193	539
Financial liabilities, at fair value		(456)	(342)
Equity derivatives [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		2,730	1,710
Financial liabilities, at fair value		(4,099)	(2,528)
Commodity derivatives [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value		17	9
Financial liabilities, at fair value		£ (17)	£ (9)
[1]	Other includes commercial real estate loans, fund and fund-linked products, asset backed loans, issued debt, commercial paper, government sponsored debt and investment property.

Fair value of financial instr_5

Fair value of financial instruments - Analysis of movements in Level 3 assets and liabilities (Details) - Significant unobservable inputs (Level 3) [member] - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019
Financial assets [abstract]
Beginning balance, financial assets		£ 10,022
Ending balance, financial assets		16,004
Financial liabilities [abstract]
Beginning balance, financial liabilities		(4,332)
Ending balance, financial liabilities		(9,287)
Net assets (liabilities) [abstract]
Ending balance, Assets (liabilities) net				£ 8,025
Recurring fair value measurement [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		5,690		8,835
Purchases, fair value measurement, assets (liabilities) net		4,571		3,685
Sales, fair value measurement, assets (liabilities) net		(3,249)		(4,047)
Issues, fair value measurement, assets (liabilities) net		(3)		(16)
Settlements, fair value measurement, assets (liabilities) net		(723)		(165)
Total gains or losses recognised in OCI, assets (liabilities)		(4)
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		504		16
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		(373)		(829)
Ending balance, Assets (liabilities) net		6,717		8,025
Recurring fair value measurement [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		275		367
Recurring fair value measurement [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		29		179
Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		(835)	[1]	472	[2]
Purchases, fair value measurement, assets (liabilities) net		(688)	[1]	(188)	[2]
Sales, fair value measurement, assets (liabilities) net		10	[1]	(1)	[2]
Issues, fair value measurement, assets (liabilities) net		0	[1]	0	[2]
Settlements, fair value measurement, assets (liabilities) net		(361)	[1]	84	[2]
Total gains or losses recognised in OCI, assets (liabilities)	[1]	0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		302	[1]	(172)	[2]
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		(33)	[1]	457	[2]
Ending balance, Assets (liabilities) net		(1,185)	[1]	902	[2]
Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		418	[1]	250	[2]
Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		2	[1]	0	[2]
Recurring fair value measurement [member] | Investment property [member]
Financial assets [abstract]
Beginning balance, financial assets		13		9
Purchases, fair value measurement, assets		0		0
Sales, fair value measurement, assets		(1)		0
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		0
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		2		0
Transfers out of Level 3 of fair value hierarchy, assets		(2)		0
Ending balance, financial assets		10		8
Recurring fair value measurement [member] | Investment property [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Recurring fair value measurement [member] | Investment property [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(2)		(1)
Trading portfolio liabilities [member] | Recurring fair value measurement [member]
Financial liabilities [abstract]
Beginning balance, financial liabilities		0		(3)
Purchases, fair value measurement, liabilities		0		0
Sales, fair value measurement, liabilities		0		0
Issues, fair value measurement, liabilities		0		0
Settlements, fair value measurement, liabilities		0		0
Total gains or losses recognised in OCI, liabilities		0
Transfers into Level 3 of fair value hierarchy, liabilities		0		(5)
Transfers out of Level 3 of fair value hierarchy, liabilities		0		0
Ending balance, financial liabilities		0		(6)
Trading portfolio liabilities [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category trading [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		0		2
Trading portfolio liabilities [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category other income [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		0		0
Financial liabilities designated at fair value [member] | Recurring fair value measurement [member]
Financial liabilities [abstract]
Beginning balance, financial liabilities		(343)		(261)
Purchases, fair value measurement, liabilities		0		0
Sales, fair value measurement, liabilities		0		0
Issues, fair value measurement, liabilities		(3)		(16)
Settlements, fair value measurement, liabilities		0		2
Total gains or losses recognised in OCI, liabilities		0
Transfers into Level 3 of fair value hierarchy, liabilities		(22)		(14)
Transfers out of Level 3 of fair value hierarchy, liabilities		26		1
Ending balance, financial liabilities		(355)		(284)
Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category trading [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		(12)		5
Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category other income [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		(1)		(1)
Financial liabilities designated at fair value [member] | Issued debt [member] | Recurring fair value measurement [member]
Financial liabilities [abstract]
Beginning balance, financial liabilities		(146)		(251)
Purchases, fair value measurement, liabilities		0		0
Sales, fair value measurement, liabilities		0		0
Issues, fair value measurement, liabilities		(3)		(16)
Settlements, fair value measurement, liabilities		0		1
Total gains or losses recognised in OCI, liabilities		0
Transfers into Level 3 of fair value hierarchy, liabilities		(22)		(3)
Transfers out of Level 3 of fair value hierarchy, liabilities		14		1
Ending balance, financial liabilities		(157)		(263)
Financial liabilities designated at fair value [member] | Issued debt [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category trading [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		0		5
Financial liabilities designated at fair value [member] | Issued debt [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category other income [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		0		0
Asset-backed loans [member]
Financial assets [abstract]
Beginning balance, financial assets		756
Ending balance, financial assets		740
Financial liabilities [abstract]
Beginning balance, financial liabilities		0
Ending balance, financial liabilities		0
Interest rate derivatives [member]
Financial assets [abstract]
Beginning balance, financial assets		605
Ending balance, financial assets		4,152
Financial liabilities [abstract]
Beginning balance, financial liabilities		(812)
Ending balance, financial liabilities		(3,772)
Interest rate derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		(206)		22
Purchases, fair value measurement, assets (liabilities) net		17		(3)
Sales, fair value measurement, assets (liabilities) net		0		0
Issues, fair value measurement, assets (liabilities) net		0		0
Settlements, fair value measurement, assets (liabilities) net		10		76
Total gains or losses recognised in OCI, assets (liabilities)		0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		300		(107)
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		(10)		145
Ending balance, Assets (liabilities) net		380		249
Interest rate derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		268		116
Interest rate derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		1		0
Foreign exchange derivatives [member]
Financial assets [abstract]
Beginning balance, financial assets		291
Ending balance, financial assets		655
Financial liabilities [abstract]
Beginning balance, financial liabilities		(298)
Ending balance, financial liabilities		(588)
Foreign exchange derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		(7)		7
Purchases, fair value measurement, assets (liabilities) net		0		0
Sales, fair value measurement, assets (liabilities) net		0		0
Issues, fair value measurement, assets (liabilities) net		0		0
Settlements, fair value measurement, assets (liabilities) net		(12)		(12)
Total gains or losses recognised in OCI, assets (liabilities)		0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		5		(51)
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		(8)		17
Ending balance, Assets (liabilities) net		67		(80)
Foreign exchange derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		89		(41)
Foreign exchange derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		0		0
Credit derivatives [member]
Financial assets [abstract]
Beginning balance, financial assets		539
Ending balance, financial assets		193
Financial liabilities [abstract]
Beginning balance, financial liabilities		(342)
Ending balance, financial liabilities		(456)
Credit derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		198		1,050
Purchases, fair value measurement, assets (liabilities) net		(258)		(63)
Sales, fair value measurement, assets (liabilities) net		11		4
Issues, fair value measurement, assets (liabilities) net		0		0
Settlements, fair value measurement, assets (liabilities) net		(376)		(3)
Total gains or losses recognised in OCI, assets (liabilities)		0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		2		2
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		8		3
Ending balance, Assets (liabilities) net		(263)		1,079
Credit derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		151		86
Credit derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		1		0
Equity derivatives [member]
Financial assets [abstract]
Beginning balance, financial assets		1,710
Ending balance, financial assets		2,730
Financial liabilities [abstract]
Beginning balance, financial liabilities		(2,528)
Ending balance, financial liabilities		(4,099)
Equity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		(820)		(607)
Purchases, fair value measurement, assets (liabilities) net		(447)		(122)
Sales, fair value measurement, assets (liabilities) net		(1)		(5)
Issues, fair value measurement, assets (liabilities) net		0		0
Settlements, fair value measurement, assets (liabilities) net		17		23
Total gains or losses recognised in OCI, assets (liabilities)		0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		(5)		(16)
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		(23)		292
Ending balance, Assets (liabilities) net		(1,369)		(346)
Equity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		(90)		89
Equity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		0		0
Commodity derivatives [member]
Financial assets [abstract]
Beginning balance, financial assets		9
Ending balance, financial assets		17
Financial liabilities [abstract]
Beginning balance, financial liabilities		(9)
Ending balance, financial liabilities		(17)
Commodity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member]
Net assets (liabilities) [abstract]
Beginning balance, Assets (liabilities) net		0		0
Purchases, fair value measurement, assets (liabilities) net		0		0
Sales, fair value measurement, assets (liabilities) net		0		0
Issues, fair value measurement, assets (liabilities) net		0		0
Settlements, fair value measurement, assets (liabilities) net		0		0
Total gains or losses recognised in OCI, assets (liabilities)		0
Transfers into Level 3 of fair value hierarchy, assets (liabilities) net		0		0
Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net		0		0
Ending balance, Assets (liabilities) net		0		0
Commodity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category trading income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		0		0
Commodity derivatives [member] | Recurring fair value measurement [member] | Net derivative financial instruments [member] | Net assets (liabilities) at fair value through profit or loss, category other income [Member]
Net assets (liabilities) [abstract]
Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net		0		0
Corporate debt [member]
Financial assets [abstract]
Beginning balance, financial assets		521
Ending balance, financial assets		516
Financial liabilities [abstract]
Beginning balance, financial liabilities		0
Ending balance, financial liabilities		0
Non-asset backed loans [member]
Financial assets [abstract]
Beginning balance, financial assets		3,280
Ending balance, financial assets		4,827
Financial liabilities [abstract]
Beginning balance, financial liabilities		0
Ending balance, financial liabilities		0
Equity cash products [member]
Financial assets [abstract]
Beginning balance, financial assets		1,228
Ending balance, financial assets		1,145
Financial liabilities [abstract]
Beginning balance, financial liabilities		0
Ending balance, financial liabilities		0
Private equity investments [member]
Financial assets [abstract]
Beginning balance, financial assets		112
Ending balance, financial assets		126
Financial liabilities [abstract]
Beginning balance, financial liabilities		0
Ending balance, financial liabilities		0
Other [member]
Financial assets [abstract]
Beginning balance, financial assets	[3]	971
Ending balance, financial assets	[3]	903
Financial liabilities [abstract]
Beginning balance, financial liabilities	[3]	(176)
Ending balance, financial liabilities	[3]	(179)
Other [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member]
Financial liabilities [abstract]
Beginning balance, financial liabilities		(197)
Purchases, fair value measurement, liabilities		0
Sales, fair value measurement, liabilities		0
Issues, fair value measurement, liabilities		0
Settlements, fair value measurement, liabilities		0
Total gains or losses recognised in OCI, liabilities		0
Transfers into Level 3 of fair value hierarchy, liabilities		0
Transfers out of Level 3 of fair value hierarchy, liabilities		12
Ending balance, financial liabilities		(198)
Other [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category trading [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		(12)
Other [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category other income [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities		(1)
Certificates of deposit, commercial paper and other money market instruments [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member]
Financial liabilities [abstract]
Beginning balance, financial liabilities				(10)
Purchases, fair value measurement, liabilities				0
Sales, fair value measurement, liabilities				0
Issues, fair value measurement, liabilities				0
Settlements, fair value measurement, liabilities				1
Transfers into Level 3 of fair value hierarchy, liabilities				(11)
Transfers out of Level 3 of fair value hierarchy, liabilities				0
Ending balance, financial liabilities				(21)
Certificates of deposit, commercial paper and other money market instruments [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category trading [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities				0
Certificates of deposit, commercial paper and other money market instruments [member] | Financial liabilities designated at fair value [member] | Recurring fair value measurement [member] | Financial liabilities at fair value through profit or loss, category other income [member]
Financial liabilities [abstract]
Total gains and losses in the period recognised in the income statement, liabilities				(1)
Trading portfolio assets [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		2,264		3,613
Purchases, fair value measurement, assets		2,250		1,436
Sales, fair value measurement, assets		(968)		(1,424)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(80)		(51)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		178		183
Transfers out of Level 3 of fair value hierarchy, assets		(352)		(228)
Ending balance, financial assets		3,078		3,548
Trading portfolio assets [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(214)		19
Trading portfolio assets [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Trading portfolio assets [member] | Asset-backed loans [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		656		664
Purchases, fair value measurement, assets		249		81
Sales, fair value measurement, assets		(224)		(127)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(76)		0
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		41		16
Transfers out of Level 3 of fair value hierarchy, assets		(11)		(29)
Ending balance, financial assets		623		610
Trading portfolio assets [member] | Asset-backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(12)		5
Trading portfolio assets [member] | Asset-backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Trading portfolio assets [member] | Government and government sponsored debt [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets				14
Purchases, fair value measurement, assets				2
Sales, fair value measurement, assets				0
Issues, fair value measurement, assets				0
Settlements, fair value measurement, assets				0
Transfers into Level 3 of fair value hierarchy, assets				0
Transfers out of Level 3 of fair value hierarchy, assets				(14)
Ending balance, financial assets				2
Trading portfolio assets [member] | Government and government sponsored debt [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Trading portfolio assets [member] | Government and government sponsored debt [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Trading portfolio assets [member] | Corporate debt [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		120		388
Purchases, fair value measurement, assets		25		70
Sales, fair value measurement, assets		0		(24)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		(31)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		4		32
Transfers out of Level 3 of fair value hierarchy, assets		(17)		(74)
Ending balance, financial assets		106		375
Trading portfolio assets [member] | Corporate debt [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(26)		14
Trading portfolio assets [member] | Corporate debt [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Trading portfolio assets [member] | Non-asset backed loans [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		974		2,263
Purchases, fair value measurement, assets		1,927		1,235
Sales, fair value measurement, assets		(740)		(1,260)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(4)		(19)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		97		19
Transfers out of Level 3 of fair value hierarchy, assets		(320)		(90)
Ending balance, financial assets		1,823		2,160
Trading portfolio assets [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(111)		12
Trading portfolio assets [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Trading portfolio assets [member] | Equity cash products [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		392		136
Purchases, fair value measurement, assets		2		48
Sales, fair value measurement, assets		(4)		(13)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		0
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		28		116
Transfers out of Level 3 of fair value hierarchy, assets		(4)		(20)
Ending balance, financial assets		347		265
Trading portfolio assets [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(67)		(2)
Trading portfolio assets [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Trading portfolio assets [member] | Other [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		122		148
Purchases, fair value measurement, assets		47		0
Sales, fair value measurement, assets		0		0
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		(1)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		8		0
Transfers out of Level 3 of fair value hierarchy, assets		0		(1)
Ending balance, financial assets		179		136
Trading portfolio assets [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		2		(10)
Trading portfolio assets [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Financial assets at fair value through income statement [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		4,162		4,650
Purchases, fair value measurement, assets		2,930		2,349
Sales, fair value measurement, assets		(2,289)		(2,622)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(125)		(145)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		44		24
Transfers out of Level 3 of fair value hierarchy, assets		(12)		(841)
Ending balance, financial assets		4,822		3,687
Financial assets at fair value through income statement [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		82		91
Financial assets at fair value through income statement [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		30		181
Financial assets at fair value through income statement [member] | Non-asset backed loans [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		1,964		1,836
Purchases, fair value measurement, assets		1,050		2
Sales, fair value measurement, assets		(270)		0
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(112)		(132)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		0		0
Transfers out of Level 3 of fair value hierarchy, assets		0		(1)
Ending balance, financial assets		2,742		1,775
Financial assets at fair value through income statement [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		110		70
Financial assets at fair value through income statement [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Financial assets at fair value through income statement [member] | Equity cash products [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		835		559
Purchases, fair value measurement, assets		14		9
Sales, fair value measurement, assets		0		0
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		(10)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		0		0
Transfers out of Level 3 of fair value hierarchy, assets		0		0
Ending balance, financial assets		798		740
Financial assets at fair value through income statement [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(22)		4
Financial assets at fair value through income statement [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(29)		178
Financial assets at fair value through income statement [member] | Private equity investments [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		113		191
Purchases, fair value measurement, assets		1		4
Sales, fair value measurement, assets		(2)		(3)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		0		(1)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		20		0
Transfers out of Level 3 of fair value hierarchy, assets		(12)		0
Ending balance, financial assets		126		185
Financial assets at fair value through income statement [member] | Private equity investments [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		2		0
Financial assets at fair value through income statement [member] | Private equity investments [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		4		(6)
Financial assets at fair value through income statement [member] | Other [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		1,250		2,064
Purchases, fair value measurement, assets		1,865		2,334
Sales, fair value measurement, assets		(2,017)		(2,619)
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(13)		(2)
Total gains or losses recognised in OCI, assets		0
Transfers into Level 3 of fair value hierarchy, assets		24		24
Transfers out of Level 3 of fair value hierarchy, assets		0		(840)
Ending balance, financial assets		1,156		987
Financial assets at fair value through income statement [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		(8)		17
Financial assets at fair value through income statement [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		55		9
Financial assets at fair value through other comprehensive income [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		429		355
Purchases, fair value measurement, assets		79		88
Sales, fair value measurement, assets		(1)		0
Issues, fair value measurement, assets		0		0
Settlements, fair value measurement, assets		(157)		(55)
Total gains or losses recognised in OCI, assets		(4)
Transfers into Level 3 of fair value hierarchy, assets		0		0
Transfers out of Level 3 of fair value hierarchy, assets		0		(218)
Ending balance, financial assets		347		170
Financial assets at fair value through other comprehensive income [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		1		0
Financial assets at fair value through other comprehensive income [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0		0
Financial assets at fair value through other comprehensive income [member] | Asset-backed loans [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		86
Purchases, fair value measurement, assets		0
Sales, fair value measurement, assets		(1)
Issues, fair value measurement, assets		0
Settlements, fair value measurement, assets		0
Total gains or losses recognised in OCI, assets		(1)
Transfers into Level 3 of fair value hierarchy, assets		0
Transfers out of Level 3 of fair value hierarchy, assets		0
Ending balance, financial assets		85
Financial assets at fair value through other comprehensive income [member] | Asset-backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		1
Financial assets at fair value through other comprehensive income [member] | Asset-backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0
Financial assets at fair value through other comprehensive income [member] | Non-asset backed loans [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets		343
Purchases, fair value measurement, assets		79
Sales, fair value measurement, assets		0
Issues, fair value measurement, assets		0
Settlements, fair value measurement, assets		(157)
Total gains or losses recognised in OCI, assets		(3)
Transfers into Level 3 of fair value hierarchy, assets		0
Transfers out of Level 3 of fair value hierarchy, assets		0
Ending balance, financial assets		262
Financial assets at fair value through other comprehensive income [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		0
Financial assets at fair value through other comprehensive income [member] | Non-asset backed loans [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets		£ 0
Financial assets at fair value through other comprehensive income [member] | Equity cash products [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets				353
Purchases, fair value measurement, assets				48
Sales, fair value measurement, assets				0
Issues, fair value measurement, assets				0
Settlements, fair value measurement, assets				(55)
Transfers into Level 3 of fair value hierarchy, assets				0
Transfers out of Level 3 of fair value hierarchy, assets				(218)
Ending balance, financial assets				128
Financial assets at fair value through other comprehensive income [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Financial assets at fair value through other comprehensive income [member] | Equity cash products [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Financial assets at fair value through other comprehensive income [member] | Private equity investments [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets				0
Purchases, fair value measurement, assets				40
Sales, fair value measurement, assets				0
Issues, fair value measurement, assets				0
Settlements, fair value measurement, assets				0
Transfers into Level 3 of fair value hierarchy, assets				0
Transfers out of Level 3 of fair value hierarchy, assets				0
Ending balance, financial assets				40
Financial assets at fair value through other comprehensive income [member] | Private equity investments [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Financial assets at fair value through other comprehensive income [member] | Private equity investments [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Financial assets at fair value through other comprehensive income [member] | Other [member] | Recurring fair value measurement [member]
Financial assets [abstract]
Beginning balance, financial assets				2
Purchases, fair value measurement, assets				0
Sales, fair value measurement, assets				0
Issues, fair value measurement, assets				0
Settlements, fair value measurement, assets				0
Transfers into Level 3 of fair value hierarchy, assets				0
Transfers out of Level 3 of fair value hierarchy, assets				0
Ending balance, financial assets				2
Financial assets at fair value through other comprehensive income [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category trading [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				0
Financial assets at fair value through other comprehensive income [member] | Other [member] | Recurring fair value measurement [member] | Financial assets at fair value through profit or loss, category other income [member]
Financial assets [abstract]
Total gains and losses in the period recognised in the income statement, assets				£ 0
[1]	Derivative financial instruments are represented on a net basis. On a gross basis, derivative financial assets were £ 7,747 m and derivative financial liabilities were £ 8,932 m.
[2]	Derivative financial instruments are presented on a net basis. On a gross basis, derivative financial assets were £ 5,701 m and derivative financial liabilities were £ 4,799 m.
[3]	Other includes commercial real estate loans, fund and fund-linked products, asset backed loans, issued debt, commercial paper, government sponsored debt and investment property.

Fair value of financial instr_6

Fair value of financial instruments - Analysis of movements in Level 3 assets and liabilities (Narrative) (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Derivative financial assets	£ 307,650	£ 229,641
Derivative financial liabilities	307,989	228,940
Significant unobservable inputs (Level 3) [member] | Recurring fair value measurement [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial assets	7,747	5,701
Derivative financial liabilities	£ 8,932	£ 4,799

Fair value of financial instr_7

Fair value of financial instruments - Unrealised gains and losses recognised in the period on Level 3 assets and liabilities held at period end (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disclosure of detailed information about financial instruments [line items]
Trading income	£ 4,225	£ 2,093
Other income	8	42
Other comprehensive income	3,723	1,107
Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	181	316
Other income	(27)	177
Other comprehensive income	(2)	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	152	493
Significant unobservable inputs (Level 3) [member] | Investment properties [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	0	0
Other income	(2)	(1)
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	(2)	(1)
Significant unobservable inputs (Level 3) [member] | Net derivative financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	248	212
Other income	0	0
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	248	212
Trading portfolio liabilities [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	0	2
Other income	0	0
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	0	2
Financial liabilities designated at fair value [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	(16)	6
Other income	(1)	0
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	(17)	6
Trading portfolio assets [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	(177)	21
Other income	0	0
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	(177)	21
Financial assets at fair value through income statement [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	126	75
Other income	(24)	178
Other comprehensive income	0	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	102	253
Financial assets at fair value through other comprehensive income, category [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [line items]
Trading income	0	0
Other income	0	0
Other comprehensive income	(2)	0
Total unrealised gains and losses recognised during the period on Level 3 assets and liabilities held at period end	£ (2)	£ 0

Fair value of financial instr_8

Fair value of financial instruments - Sensitivity analysis of valuations using unobservable inputs (Details) - Recurring fair value measurement [member] - Significant unobservable inputs (Level 3) [member] - GBP (£)		Jun. 30, 2020	Dec. 31, 2019
Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		£ 789,000,000	£ 512,000,000
Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		4,000,000	8,000,000
Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(1,106,000,000)	(745,000,000)
Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(4,000,000)	(8,000,000)
Corporate debt [member] | Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		23,000,000	11,000,000
Corporate debt [member] | Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Corporate debt [member] | Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(23,000,000)	(16,000,000)
Corporate debt [member] | Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Non-asset backed loans [member] | Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		159,000,000	125,000,000
Non-asset backed loans [member] | Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		4,000,000	8,000,000
Non-asset backed loans [member] | Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(322,000,000)	(228,000,000)
Non-asset backed loans [member] | Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(4,000,000)	(8,000,000)
Equity cash products [member] | Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		164,000,000	123,000,000
Equity cash products [member] | Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Equity cash products [member] | Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(206,000,000)	(175,000,000)
Equity cash products [member] | Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Private equity investments [member] | Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		18,000,000	16,000,000
Private equity investments [member] | Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Private equity investments [member] | Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(19,000,000)	(25,000,000)
Private equity investments [member] | Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Other [member] | Favourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions	[1]	2,000,000	1,000,000
Other [member] | Favourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions	[1]	0	0
Other [member] | Unfavourable changes [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions	[1]	(2,000,000)	(1,000,000)
Other [member] | Unfavourable changes [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions	[1]	0	0
Interest rate derivatives [member] | Favourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		138,000,000	44,000,000
Interest rate derivatives [member] | Favourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Interest rate derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(256,000,000)	(127,000,000)
Interest rate derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Foreign exchange derivatives [member] | Favourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		7,000,000	5,000,000
Foreign exchange derivatives [member] | Favourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Foreign exchange derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(11,000,000)	(7,000,000)
Foreign exchange derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Credit derivatives [member] | Favourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		127,000,000	73,000,000
Credit derivatives [member] | Favourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Credit derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(109,000,000)	(47,000,000)
Credit derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Equity derivatives [member] | Favourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		151,000,000	114,000,000
Equity derivatives [member] | Favourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Equity derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		(158,000,000)	(119,000,000)
Equity derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Commodity derivatives [member] | Favourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Commodity derivatives [member] | Favourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Commodity derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Income statement [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		0	0
Commodity derivatives [member] | Unfavourable changes [member] | Derivatives [member] | Equity [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis valuation due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions		£ 0	£ 0
[1]	Other includes commercial real estate loans, fund and fund-linked products , asset backed loans, issued debt, commercial paper, government sponsored debt and investment propert y.

Fair value of financial instr_9

Fair value of financial instruments - Fair value adjustments (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Exit price adjustments derived from market bid-offer spreads [member]
Disclosure of detailed information about financial instruments [line items]
Fair value adjustments	£ (564)	£ (420)
Uncollateralised derivative funding [member]
Disclosure of detailed information about financial instruments [line items]
Fair value adjustments	(181)	(57)
Derivative credit valuation adjustments [member]
Disclosure of detailed information about financial instruments [line items]
Fair value adjustments	(378)	(135)
Derivative debit valuation adjustments [member]
Disclosure of detailed information about financial instruments [line items]
Fair value adjustments	£ 148	£ 155

Fair value of financial inst_10

Fair value of financial instruments - Comparison of carrying amounts and fair values for assets and liabilities not held at fair value (Details) - GBP (£)	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial assets [abstract]
Loans and advances at amortised cost	£ 150,203,000,000	£ 141,636,000,000
Reverse repurchase agreements and other similar secured lending	19,811,000,000	1,731,000,000
Financial liabilities [abstract]
Deposits at amortised cost	(245,737,000,000)	(213,881,000,000)
Repurchase agreements and other similar secured borrowing	(4,033,000,000)	(2,032,000,000)
Debt securities in issue	(50,496,000,000)	(33,536,000,000)
Subordinated liabilities	(36,965,000,000)	(33,425,000,000)	£ (35,327,000,000)
Fair value [member]
Financial assets [abstract]
Loans and advances at amortised cost	149,511	141,251,000,000
Reverse repurchase agreements and other similar secured lending	19,811	1,731,000,000
Financial liabilities [abstract]
Deposits at amortised cost	(245,758)	(213,897,000,000)
Repurchase agreements and other similar secured borrowing	(4,033)	(2,032,000,000)
Debt securities in issue	(50,568)	(33,529,000,000)
Subordinated liabilities	(37,675)	(34,861,000,000)
Gross carrying amount [member]
Financial assets [abstract]
Loans and advances at amortised cost	150,203	141,636,000,000
Reverse repurchase agreements and other similar secured lending	19,811	1,731,000,000
Financial liabilities [abstract]
Deposits at amortised cost	(245,737)	(213,881,000,000)
Repurchase agreements and other similar secured borrowing	(4,033)	(2,032,000,000)
Debt securities in issue	(50,496)	(33,536,000,000)
Subordinated liabilities	£ (36,965)	£ (33,425,000,000)

Fair value of financial inst_11

Fair value of financial instruments (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Deposits at amortised cost	£ 245,737	£ 213,881
Brokered certificates of deposit [member]
Disclosure of detailed information about financial instruments [line items]
Description of existence of third-party credit enhancement	Structured and brokered certificates of deposit issued by Barclays Bank Group are insured up to $250,000 per depositor by the Federal Deposit Insurance Corporation (FDIC) in the United States. The FDIC is funded by premiums that the Barclays Bank Group and other banks pay for deposit insurance coverage.
Description of whether third-party credit enhancement is reflected in fair value measurement	The carrying value of these issued certificates of deposit that are designated under the IFRS 9 fair value option includes this third party credit enhancement.
Deposits at amortised cost	£ 3,162	3,218
Significant unobservable inputs (Level 3) [member] | Favourable changes [member]
Disclosure of detailed information about financial instruments [line items]
Increase in fair value measurement due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions, assets (liabilities)	793	520
Decrease in fair value measurement due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions, assets (liabilities)	1,110	753
Exit price adjustments derived from market bid-offer spreads [member]
Disclosure of detailed information about financial instruments [line items]
Increase (decrease) in fair value adjustments of derivatives	(144)
Fair value adjustments	(564)	(420)
Uncollateralised derivative funding [member]
Disclosure of detailed information about financial instruments [line items]
Increase (decrease) in fair value adjustments of derivatives	(124)
Fair value adjustments	(181)	(57)
Derivative credit valuation adjustments [member]
Disclosure of detailed information about financial instruments [line items]
Increase (decrease) in fair value adjustments of derivatives	(243)
Fair value adjustments	(378)	(135)
Derivative debit valuation adjustments [member]
Disclosure of detailed information about financial instruments [line items]
Increase (decrease) in fair value adjustments of derivatives	7
Fair value adjustments	148	155
Financial instruments at fair value, category [member] | Significant unobservable inputs (Level 3) [member] | Recurring fair value measurement [member]
Disclosure of detailed information about financial instruments [line items]
Aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	101	100
Additions, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	11	40
Amortisation and releases, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	10	67
Financial instruments at amortised cost, category [member] | Significant unobservable inputs (Level 3) [member] | Recurring fair value measurement [member]
Disclosure of detailed information about financial instruments [line items]
Aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	31	31
Additions, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	1	2
Amortisation and releases, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss	£ 1	£ 2

Subordinated liabilities (Detai

Subordinated liabilities (Details) - GBP (£) £ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
7. Subordinated liabilities
Opening balance as at 1 January	£ 33,425	£ 35,327
Issuances	3,162	6,785
Redemptions	(2,814)	(7,804)
Other	3,192	(883)
Closing balance	£ 36,965	£ 33,425

Subordinated liabilities (Narra

Subordinated liabilities (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]
Issuances	£ 3,162	£ 6,785
Redemption of subordinated debt	2,814	£ 7,804
Fixed interest rate [member] | Barclays Bank PLC externally issued [member]
Disclosure of detailed information about borrowings [line items]
Redemption of subordinated debt	30
Barclays Bank PLC loans issued intra-group Barclays PLC [member]
Disclosure of detailed information about borrowings [line items]
Issuances	3,082
Redemption of subordinated debt	2,518
USD Floating Rate Notes [member]
Disclosure of detailed information about borrowings [line items]
Issuances	80
Redemption of subordinated debt	£ 266

Provisions - Total Provisions (

Provisions - Total Provisions (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Disclosure of other provisions [line items]
Provisions	£ 1,085	£ 951
Customer redress [member]
Disclosure of other provisions [line items]
Provisions	27	71
Legal, competition and regulatory matters [member]
Disclosure of other provisions [line items]
Provisions	250	374
Redundancy and restructuring [member]
Disclosure of other provisions [line items]
Provisions	34	63
Undrawn contractually committed facilities and guarantees [member]
Disclosure of other provisions [line items]
Provisions	593	252
Onerous contracts [member]
Disclosure of other provisions [line items]
Provisions	9	20
Sundry provisions [member]
Disclosure of other provisions [line items]
Provisions	£ 172	£ 171

Retirement benefits (Narrative)

Retirement benefits (Narrative) (Details) - GBP (£) £ in Billions	Jun. 30, 2020	Dec. 31, 2019
Disclosure of fair value of plan assets [line items]
Surplus (deficit) in plan	£ 2.5	£ 1.8
United Kingdom Retirement Fund (UKRF) [member] | Pension defined benefit plans [member] | UK [member]
Disclosure of fair value of plan assets [line items]
Surplus (deficit) in plan	£ 2.8	£ 2.1

Retirement benefits - UKRF fund

Retirement benefits - UKRF funding valuations (Narrative) (Details) - GBP (£) £ in Millions	Jun. 12, 2020	Feb. 29, 2020	Jun. 30, 2020	Dec. 31, 2019
Disclosure of fair value of plan assets [line items]
Surplus (deficit) in plan			£ (2,500)	£ (1,800)
United Kingdom Retirement Fund (UKRF) [member] | Pension defined benefit plans [member] | UK [member]
Disclosure of fair value of plan assets [line items]
Surplus (deficit) in plan			£ (2,800)	£ (2,100)
United Kingdom Retirement Fund (UKRF) [member] | Pension defined benefit plans [member] | UK [member] | The Senior Notes [Member] | Heron Issuer Limited [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Notes issued	£ 750
Maturity Date			These Senior Notes entitle the UKRF to semi-annual coupon payments for five years, and full repayment in cash in three equal tranches in 2023, 2024, and at final maturity in 2025.
Debt securities issued	750
Regulatory capital impact	250
United Kingdom Retirement Fund (UKRF) [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member]
Disclosure of fair value of plan assets [line items]
Surplus (deficit) in plan		£ 2,300
Funding level percentage		94.00%
United Kingdom Retirement Fund (UKRF) [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Defined benefit contributions paid	£ 500
United Kingdom Retirement Fund (UKRF) [member] | 2019 [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Deficit reduction contributions		£ 500
United Kingdom Retirement Fund (UKRF) [member] | 2020 [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Deficit reduction contributions		500
United Kingdom Retirement Fund (UKRF) [member] | 2020 [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Deficit reduction contributions		700
United Kingdom Retirement Fund (UKRF) [member] | 2021 [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Deficit reduction contributions		294
United Kingdom Retirement Fund (UKRF) [member] | 2022 [member] | Deficit contributions 30 September 2019 valuation [member] | Pension defined benefit plans [member] | UK [member] | Barclays Bank PLC [member]
Disclosure of fair value of plan assets [line items]
Deficit reduction contributions		£ 286

Called up share capital (Narrat

Called up share capital (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020GBP (£)£ / sharesshares	Jun. 30, 2020€ / shares	Jun. 30, 2020$ / shares	Dec. 31, 2019GBP (£)shares
Ordinary share capital [member]
Number of shares issued | shares	2,342,000,000			2,342,000,000
Par value per share | £ / shares	£ 1
Proceeds From Issuing Shares	£ 0
Redemption of shares	0
Preference share capital [member]
Proceeds From Issuing Shares	0
Redemption of shares	0
Preference share capital [member] | Barclays Bank PLC [member]
Called up share capital	£ 6,000,000			£ 6,000,000
Sterling 1 Preference Shares [member]
Number of shares issued | shares	1,000			1,000
Par value per share | £ / shares	£ 1
Euro Preference Shares [member]
Number of shares issued | shares	31,856			31,856
Par value per share | € / shares		€ 100
US Dollar Preference Shares $100 [member]
Number of shares issued | shares	58,133			58,133
Par value per share | $ / shares			$ 100

Other equity instruments (Narra

Other equity instruments (Narrative) (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Equity	£ 56,694	£ 50,615	£ 52,610	£ 47,711
Other equity instruments [member]
Equity	£ 8,323	£ 8,323	£ 9,402	£ 7,595

Other reserves (Details)

Other reserves (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Disclosure of reserves within equity [line items]
Total Reserves	£ 6,319	£ 3,235
Currency translation reserve [member]
Disclosure of reserves within equity [line items]
Total Reserves	4,769	3,383
Fair value through other comprehensive income reserve [member]
Disclosure of reserves within equity [line items]
Total Reserves	(2)	(139)
Cash flow hedging reserve [member]
Disclosure of reserves within equity [line items]
Total Reserves	1,453	388
Own credit reserve [member]
Disclosure of reserves within equity [line items]
Total Reserves	123	(373)
Other reserves [member]
Disclosure of reserves within equity [line items]
Total Reserves	£ (24)	£ (24)

Other reserves (Narrative) (Det

Other reserves (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Disclosure of reserves within equity [line items]
Other reserves	£ (6,319)	£ (3,235)
Other	1	3	£ (1)
Currency translation reserve [member]
Disclosure of reserves within equity [line items]
Other reserves	(4,769)	(3,383)
Movements	(1,386)
Fair value through other comprehensive income reserve [member]
Disclosure of reserves within equity [line items]
Other reserves	2	139
Movements	(137)
Changes in fair value	277
Net gains transferred to net profits	114
Tax	42
Cash flow hedging reserve [member]
Disclosure of reserves within equity [line items]
Other reserves	(1,453)	(388)
Movements	(1,065)
Changes in fair value	1,587
Net gains transferred to net profits	117
Tax	408
Own credit reserve [member]
Disclosure of reserves within equity [line items]
Other reserves	(123)	373
Movements	(496)
Funding spreads	845
Other	209
Tax	144
Other reserves [member]
Disclosure of reserves within equity [line items]
Other reserves	£ 24	£ 24

Contingent liabilities and co_3

Contingent liabilities and commitments (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Contingent liabilities [member]
Disclosure of contingent liabilities [line items]
Notional amount	£ 22,414	£ 23,777
Loan commitments [member]
Disclosure of contingent liabilities [line items]
Notional amount	265,538	270,027
Guarantees and letters of credit pledged as collateral security [member] | Contingent liabilities [member]
Disclosure of contingent liabilities [line items]
Notional amount	15,825	17,006
Performance guarantees, acceptances and endorsements [member] | Contingent liabilities [member]
Disclosure of contingent liabilities [line items]
Notional amount	6,589	6,771
Documentary credits and other short-term trade related transactions [Member] | Loan commitments [member]
Disclosure of contingent liabilities [line items]
Notional amount	1,162	1,291
Standby facilities, credit lines and other commitments [member] | Loan commitments [member]
Disclosure of contingent liabilities [line items]
Notional amount	£ 264,376	£ 268,736

Legal, competition and regula_2

Legal, competition and regulatory matters (Narrative) (Details) £ in Millions, $ in Millions

1 Months Ended

6 Months Ended

12 Months Ended

Mar. 31, 2018GBP (£)

Mar. 31, 2018USD ($)

Jan. 31, 2017GBP (£)

Sep. 30, 2013GBP (£)

Jun. 30, 2020GBP (£)

Jun. 30, 2020USD ($)

Jun. 30, 2019GBP (£)

Dec. 31, 2018GBP (£)

Dec. 31, 2018USD ($)

Dec. 31, 2015GBP (£)lawsuits

Dec. 31, 2012GBP (£)

Dec. 31, 2008GBP (£)

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 19

£ 68

Investigations into certain advisory services agreements and other matters and civil action [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

In 2008, Barclays Bank PLC and Qatar Holdings LLC entered into two advisory service agreements (the Agreements). The Financial Conduct Authority (FCA) conducted an investigation into whether the Agreements may have related to Barclays PLC’s capital raisings in June and November 2008 (the Capital Raisings) and therefore should have been disclosed in the announcements or public documents relating to the Capital Raisings. In 2013, the FCA issued warning notices (the Notices) finding that Barclays PLC and Barclays Bank PLC acted recklessly and in breach of certain disclosure-related listing rules, and that Barclays PLC was also in breach of Listing Principle 3. The financial penalty provided in the Notices is £50m. Barclays PLC and Barclays Bank PLC continue to contest the findings. Following the conclusion of the Serious Fraud Office (SFO) proceedings against certain former Barclays executives resulting in their acquittals, the FCA proceedings, which were stayed, have resumed. All charges brought by the SFO against Barclays PLC and Barclays Bank PLC in relation to the Agreements were dismissed in 2018.

In 2008, Barclays Bank PLC and Qatar Holdings LLC entered into two advisory service agreements (the Agreements). The Financial Conduct Authority (FCA) conducted an investigation into whether the Agreements may have related to Barclays PLC’s capital raisings in June and November 2008 (the Capital Raisings) and therefore should have been disclosed in the announcements or public documents relating to the Capital Raisings. In 2013, the FCA issued warning notices (the Notices) finding that Barclays PLC and Barclays Bank PLC acted recklessly and in breach of certain disclosure-related listing rules, and that Barclays PLC was also in breach of Listing Principle 3. The financial penalty provided in the Notices is £50m. Barclays PLC and Barclays Bank PLC continue to contest the findings. Following the conclusion of the Serious Fraud Office (SFO) proceedings against certain former Barclays executives resulting in their acquittals, the FCA proceedings, which were stayed, have resumed. All charges brought by the SFO against Barclays PLC and Barclays Bank PLC in relation to the Agreements were dismissed in 2018.

FCA Proceedings and other investigations [Member]

Disclosure of contingent liabilities [line items]

Loss contingency, Financial penalty warning

£ 50

Civil action [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

PCP Capital Partners LLP and PCP International Finance Limited (PCP) are seeking damages of approximately £1.6bn from Barclays Bank PLC for fraudulent misrepresentation and deceit, arising from alleged statements made by Barclays Bank PLC to PCP in relation to the terms on which securities were to be issued to potential investors, allegedly including PCP, in the November 2008 capital raising. Barclays Bank PLC is defending the claim and trial commenced in June 2020.

PCP Capital Partners LLP and PCP International Finance Limited (PCP) are seeking damages of approximately £1.6bn from Barclays Bank PLC for fraudulent misrepresentation and deceit, arising from alleged statements made by Barclays Bank PLC to PCP in relation to the terms on which securities were to be issued to potential investors, allegedly including PCP, in the November 2008 capital raising. Barclays Bank PLC is defending the claim and trial commenced in June 2020.

Loss Contingency, Damages Sought, claimed amounts, Value

£ 1,600

Investigations into LIBOR and other benchmarks [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

Regulators and law enforcement agencies, including certain competition authorities, from a number of governments have conducted investigations relating to Barclays Bank PLC’s involvement in allegedly manipulating certain financial benchmarks, such as LIBOR. The SFO has closed its investigation with no action to be taken against the Barclays Group. Various individuals and corporates in a range of jurisdictions have threatened or brought civil actions against the Barclays Group and other banks in relation to the alleged manipulation of LIBOR and/or other benchmarks. Certain actions remain pending.

Regulators and law enforcement agencies, including certain competition authorities, from a number of governments have conducted investigations relating to Barclays Bank PLC’s involvement in allegedly manipulating certain financial benchmarks, such as LIBOR. The SFO has closed its investigation with no action to be taken against the Barclays Group. Various individuals and corporates in a range of jurisdictions have threatened or brought civil actions against the Barclays Group and other banks in relation to the alleged manipulation of LIBOR and/or other benchmarks. Certain actions remain pending.

USD LIBOR Cases in MDL Court [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

The majority of the USD LIBOR cases, which have been filed in various US jurisdictions, have been consolidated for pre-trial purposes before a single judge in the US District Court in the Southern District of New York (SDNY).

The majority of the USD LIBOR cases, which have been filed in various US jurisdictions, have been consolidated for pre-trial purposes before a single judge in the US District Court in the Southern District of New York (SDNY).

Number of lawsuits with specified damages sought | lawsuits

3

USD LIBOR Cases in MDL Court [Member] | Lawsuits with specified damages sought [Member]

Disclosure of contingent liabilities [line items]

Loss Contingency, Damages Sought, claimed amounts, Value

£ 900

USD LIBOR Cases in MDL Court [Member] | Exchange-Based Class claims [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 20

USD LIBOR Cases in MDL Court [Member] | Debt Securities Class claims [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 7.1

Foreign Exchange investigations [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

In 2015, the Barclays Group reached settlements totalling approximately $2.38bn with various US federal and state authorities and the FCA in relation to investigations into certain sales and trading practices in the Foreign Exchange market. Under the related plea agreement with the US Department of Justice (DoJ), which received final court approval in January 2017, the Barclays Group agreed to a term of probation of three years, which expired in January 2020. The Barclays Group also continues to provide relevant information to certain authorities.

In 2015, the Barclays Group reached settlements totalling approximately $2.38bn with various US federal and state authorities and the FCA in relation to investigations into certain sales and trading practices in the Foreign Exchange market. Under the related plea agreement with the US Department of Justice (DoJ), which received final court approval in January 2017, the Barclays Group agreed to a term of probation of three years, which expired in January 2020. The Barclays Group also continues to provide relevant information to certain authorities.

Losses on litigation settlements

£ 2,380

Number of years probation

3 years

Foreign Exchange investigations [Member] | Fines settlement [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 210

Foreign Exchange investigations [Member] | Violation of NPA [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 27

Consolidated FX Action [Member] | Barclays Capital Inc [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements

£ 384

US residential and commercial mortgage-related activity and litigation [Member] | Originated and sold to third parties by Acquired Subsidiary [Member] | RMBS Repurchase Requests [Member]

Disclosure of contingent liabilities [line items]

Original unpaid principal balance at time of sale

£ 2,100

Government and agency securities civil actions and related matters [Member] | Barclays PLC [member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements | $

$ 5.7

Government and agency securities civil actions and related matters [Member] | Barclays Capital Inc [Member]

Disclosure of contingent liabilities [line items]

Losses on litigation settlements | $

$ 87

Civil actions in respect of the US Anti-Terrorism Act [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

There are a number of civil actions, on behalf of more than 4,000 plaintiffs, filed in US federal courts in the US District Court in the Eastern District of New York (EDNY) and SDNY against Barclays Bank PLC and a number of other banks. The complaints generally allege that Barclays Bank PLC and those banks engaged in a conspiracy to facilitate US dollar-denominated transactions for the Government of Iran and various Iranian banks, which in turn funded acts of terrorism that injured or killed plaintiffs or plaintiffs’ family members. The plaintiffs seek to recover damages for pain, suffering and mental anguish under the provisions of the US Anti-Terrorism Act, which allow for the trebling of any proven damages.

There are a number of civil actions, on behalf of more than 4,000 plaintiffs, filed in US federal courts in the US District Court in the Eastern District of New York (EDNY) and SDNY against Barclays Bank PLC and a number of other banks. The complaints generally allege that Barclays Bank PLC and those banks engaged in a conspiracy to facilitate US dollar-denominated transactions for the Government of Iran and various Iranian banks, which in turn funded acts of terrorism that injured or killed plaintiffs or plaintiffs’ family members. The plaintiffs seek to recover damages for pain, suffering and mental anguish under the provisions of the US Anti-Terrorism Act, which allow for the trebling of any proven damages.

BDC Finance LLC [Member]

Disclosure of contingent liabilities [line items]

Explanation of general nature of dispute and of reason for non-disclosure of information regarding contingent liability

In 2008, BDC Finance L.L.C. (BDC) filed a complaint in the NY Supreme Court, demanding damages of $298m, alleging that Barclays Bank PLC had breached a contract in connection with a portfolio of total return swaps governed by an ISDA Master Agreement (collectively, the Agreement). Following a trial on certain liability issues, the court ruled in December 2018 that Barclays Bank PLC was not a defaulting party, which was affirmed on appeal. Barclays Bank PLC’s counterclaim against BDC remains pending.

In 2008, BDC Finance L.L.C. (BDC) filed a complaint in the NY Supreme Court, demanding damages of $298m, alleging that Barclays Bank PLC had breached a contract in connection with a portfolio of total return swaps governed by an ISDA Master Agreement (collectively, the Agreement). Following a trial on certain liability issues, the court ruled in December 2018 that Barclays Bank PLC was not a defaulting party, which was affirmed on appeal. Barclays Bank PLC’s counterclaim against BDC remains pending.

Litigation settlements approved, value

£ 298

HM Revenue & Customs (HMRC) assessments concerning UK Value Added Tax [Member]

Disclosure of contingent liabilities [line items]

Loss Contingency, Damages Sought, claimed amounts, Value | $

$ 181

HM Revenue & Customs (HMRC) assessments concerning UK Value Added Tax [Member] | Barclays PLC [member]

Disclosure of contingent liabilities [line items]

Loss Contingency, Damages Sought, claimed amounts, Value

£ 53

Information about contingent liabilities that disclosure is not practicable

HM Revenue & Customs (HMRC) assessments concerning UK Value Added Tax [Member] | Barclays UK PLC [member] | Barclays PLC [member]

Disclosure of contingent liabilities [line items]

Loss Contingency, Damages Sought, claimed amounts, Value

£ 128

Related party transactions - Am

Related party transactions - Amounts included in the Barclays Bank Group's financial statements with other Barclays Group companies (Details) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disclosure of transactions between related parties [line items]
Income	[1]	£ 8,637	£ 7,122
Operating expenses		(4,567)	(4,910)
Assets		1,095,958		£ 876,672
Liabilities		1,039,264		826,057
Parent [member]
Disclosure of transactions between related parties [line items]
Income		(346)	(275)
Operating expenses		(34)	(46)
Assets		5,793		2,097
Liabilities		27,262		24,876
Subsidiaries [member]
Disclosure of transactions between related parties [line items]
Income		31	32
Operating expenses		(1,443)	£ (1,546)
Assets		1,952		2,165
Liabilities		£ 2,531		£ 1,600
[1]	T he geographical analysis is now based on the location of office where the transactions are recorded, whereas in the prior year it was based on counterparty location. The approach was changed at year-end 2019 and is better aligned to the geographical view of the business following the implementation of structural reform. Prior year comparatives have been restated

Barclays Bank PLC parent cond_3

Barclays Bank PLC parent condensed balance sheet (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and balances at central banks	£ 155,792	£ 125,940
Cash collateral and settlement balances	130,873	79,486
Loans and advances at amortised cost	150,203	141,636
Reverse repurchase agreements and other similar secured lending	19,811	1,731
Trading portfolio assets	109,461	113,337
Financial assets at fair value through the income statement	155,540	129,470
Derivative financial instruments	307,650	229,641
Financial assets at fair value through other comprehensive income	55,161	45,406
Investments in associates and joint ventures	30	295
Goodwill and intangible assets	1,250	1,212
Property, plant and equipment	1,654	1,631
Current tax assets	984	898
Deferred tax assets	2,639	2,460
Retirement benefit assets	2,848	2,108
Other assets	2,062	1,421
Total assets	1,095,958	876,672
Liabilities
Deposits at amortised cost	245,737	213,881
Cash collateral and settlement balances	113,341	67,682
Repurchase agreements and other similar secured borrowing	4,033	2,032
Debt securities in issue	50,496	33,536
Subordinated liabilities	36,965	33,425		£ 35,327
Trading portfolio liabilities	50,378	35,212
Financial liabilities designated at fair value	222,142	204,446
Derivative financial instruments	307,989	228,940
Current tax liabilities	310	320
Deferred tax liabilities	1,084	80
Retirement benefit liabilities	319	313
Other liabilities	5,385	5,239
Provisions	1,085	951
Total liabilities	1,039,264	826,057
Equity
Called up share capital and share premium	2,348	2,348
Other equity instruments	8,323	8,323
Other reserves	6,319	3,235
Retained earnings	39,704	36,709
Total equity	56,694	50,615	£ 52,610	£ 47,711
Total liabilities and equity	1,095,958	876,672
Barclays Bank PLC [member]
Assets
Cash and balances at central banks	128,461	112,287
Cash collateral and settlement balances	115,391	75,822
Loans and advances at amortised cost	186,606	161,663
Reverse repurchase agreements and other similar secured lending	22,926	4,939
Trading portfolio assets	73,646	79,079
Financial assets at fair value through the income statement	187,575	162,500
Derivative financial instruments	304,807	229,338
Financial assets at fair value through other comprehensive income	53,475	43,760
Investments in associates and joint ventures	16	119
Investments in subsidiaries	16,653	16,105
Goodwill and intangible assets	114	115
Property, plant and equipment	419	426
Current tax assets	1,045	946
Deferred tax assets	1,203	1,115
Retirement benefit assets	2,797	2,062
Other assets	1,234	845
Total assets	1,096,368	891,121
Liabilities
Deposits at amortised cost	268,286	240,631
Cash collateral and settlement balances	94,744	59,448
Repurchase agreements and other similar secured borrowing	9,778	9,185
Debt securities in issue	34,926	19,883
Subordinated liabilities	36,937	33,205
Trading portfolio liabilities	53,953	45,130
Financial liabilities designated at fair value	234,510	207,765
Derivative financial instruments	306,288	225,607
Current tax liabilities	287	221
Deferred tax liabilities	1,083	80
Retirement benefit liabilities	105	104
Other liabilities	3,297	2,807
Provisions	885	630
Total liabilities	1,045,079	844,696
Equity
Called up share capital and share premium	2,348	2,348
Other equity instruments	11,089	11,089
Other reserves	2,763	678
Retained earnings	35,089	32,310
Total equity	51,289	46,425
Total liabilities and equity	£ 1,096,368	£ 891,121

Barclays Bank PLC parent cond_4

Barclays Bank PLC parent condensed balance sheet (Narrative) (Details) - GBP (£) £ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Condensed Balance Sheet Statements, Captions [Line Items]
Profit on disposal of subsidiaries, associates and joint ventures	£ 1	£ 13
Barclaycard International Payments Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Profit on disposal of subsidiaries, associates and joint ventures	4
Entercard Group AB [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Profit on disposal of subsidiaries, associates and joint ventures	13
Carnegie Holdings Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Profit on disposal of subsidiaries, associates and joint ventures	57
Barclays Mercantile Business Finance Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Profit on disposal of subsidiaries, associates and joint ventures	11
Barclays Bank PLC [member] | Barclaycard International Payments Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Proceeds from sales of investments	102
Profit on disposal of subsidiaries, associates and joint ventures	56
Barclays Bank PLC [member] | Entercard Group AB [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Proceeds from sales of investments	292
Profit on disposal of subsidiaries, associates and joint ventures	192
Barclays Bank PLC [member] | Carnegie Holdings Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Proceeds from sales of investments	188
Profit on disposal of subsidiaries, associates and joint ventures	133
Barclays Bank PLC [member] | Barclays Mercantile Business Finance Limited [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Proceeds from sales of investments	154
Profit on disposal of subsidiaries, associates and joint ventures	£ 23

Other disclosures - Credit Ri_3

Other disclosures - Credit Risk - Loans and advances at amortised cost by product (Details) - Financial assets at amortised cost [member] £ in Millions		Jun. 30, 2020GBP (£)	Dec. 31, 2019GBP (£)
Loans and advances [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 150,203	£ 141,636
Coverage ratio	[1]	0.036	0.025
Loans and advances [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 155,760	£ 145,332
Loans and advances [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	5,557	3,696
Loans and advances [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 105,354	£ 127,853
Coverage ratio		0.006	0.004
Loans and advances [member] | Stage 1 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 106,028	£ 128,345
Loans and advances [member] | Stage 1 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		674	492
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 42,229	£ 11,581
Coverage ratio		0.049	0.084
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 610	£ 10,073
Coverage ratio		0.044	0.071
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 51	£ 590
Coverage ratio		0.059	0.164
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 164	£ 918
Coverage ratio		0.17	0.161
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 44,393	£ 12,639
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		40,003	10,839
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		3,229	706
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,161	1,094
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,164	1,058
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,778	766
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		189	116
Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		197	176
Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 2,620	£ 2,202
Coverage ratio		0.509	0.494
Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 5,339	£ 4,348
Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,719	2,146
Home loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 11,275	£ 10,986
Coverage ratio	[1]	0.036	0.031
Home loans [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 11,691	£ 11,334
Home loans [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	416	348
Home loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 9,658	£ 9,588
Coverage ratio		0.001	0.002
Home loans [member] | Stage 1 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 9,670	£ 9,604
Home loans [member] | Stage 1 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		12	16
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 825	£ 634
Coverage ratio		0.061	0.059
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 4,981	£ 520
Coverage ratio		0.044	0.044
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 120	£ 39
Coverage ratio		0.177	0.188
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 190	£ 75
Coverage ratio		0.084	0.085
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 879	£ 674
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		638	544
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		62	48
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		179	82
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		54	40
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		28	24
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		11	9
Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		15	7
Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 792	£ 764
Coverage ratio		0.306	0.277
Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 1,142	£ 1,056
Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		350	292
Credit cards, unsecured and other retail lending [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 26,019	£ 33,503
Coverage ratio	[1]	0.113	0.072
Credit cards, unsecured and other retail lending [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 29,326	£ 36,120
Credit cards, unsecured and other retail lending [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	3,307	2,617
Credit cards, unsecured and other retail lending [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 20,203	£ 29,179
Coverage ratio		0.022	0.012
Credit cards, unsecured and other retail lending [member] | Stage 1 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 20,659	£ 29,541
Credit cards, unsecured and other retail lending [member] | Stage 1 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		456	362
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 5,291	£ 3,666
Coverage ratio		0.202	0.176
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 32,634	£ 3,283
Coverage ratio		0.18	0.137
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 2,869	£ 205
Coverage ratio		0.417	0.326
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 610	£ 178
Coverage ratio		0.454	0.476
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 6,631	£ 4,450
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		6,077	3,806
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		206	304
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		348	340
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,340	784
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,096	523
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		86	99
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		158	162
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 525	£ 658
Coverage ratio		0.742	0.691
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 2,036	£ 2,129
Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,511	1,471
Wholesale loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 112,909	£ 97,147
Coverage ratio	[1]	0.016	0.007
Wholesale loans [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	£ 114,743	£ 97,878
Wholesale loans [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	1,834	731
Wholesale loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 75,493	£ 89,086
Coverage ratio		0.003	0.001
Wholesale loans [member] | Stage 1 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 75,699	£ 89,200
Wholesale loans [member] | Stage 1 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		206	114
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 36,113	£ 7,281
Coverage ratio		0.021	0.031
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 38,225	£ 6,270
Coverage ratio		0.02	0.034
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 3,040	£ 346
Coverage ratio		0.031	0.023
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 964	£ 665
Coverage ratio		0.038	0.01
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 36,883	£ 7,515
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		33,288	6,489
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,961	354
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		634	672
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		770	234
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Not past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		654	219
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Equal to or Less than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		92	8
Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member] | ECL [member] | Greater than 30 days past due [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		24	7
Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 1,303	£ 780
Coverage ratio		0.397	0.329
Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 2,161	£ 1,163
Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | ECL [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		£ 858	£ 383
[1]	Other financial assets subject to impairment ex cluded in the table above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income, accrued income and sundry debtors. These have a total gross exposure of £ 187.1 bn (December 2019: £ 125.5 bn) and impairment allowance of £ 168 m (December 2019: £ 22 m). This compri ses £ 33 m (December 2019: £ 10 m) ECL on £ 181.7 bn (December 2019: £ 124.7 bn) Stage 1 assets, £ 20 m ( December 201 9 : £ 2 m) on £ 5.3 bn (December 2019: £ 0.8 bn) Stage 2 fair value through other comprehensive income assets and £ 115 m (December 2019: £ 10 m) on £ 115 m (December 2019: £ 10 m) Stage 3 other assets. Loan commitments and financial guarantee contracts have total ECL of £ 593 m (December 2019: £ 252 m).

Other disclosures - Credit Ri_4

Other disclosures - Credit Risk - Loans and advances at amortised cost by product (Narrative) (Details) - GBP (£) £ in Millions	Jun. 30, 2020	Dec. 31, 2019
Impairment allowance [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	£ 593	£ 252
Other financial assets subject to impairment [member] | Gross exposure [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	187,100	125,500
Other financial assets subject to impairment [member] | Gross exposure [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	181,700	124,700
Other financial assets subject to impairment [member] | Gross exposure [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	115	10
Other financial assets subject to impairment [member] | Impairment allowance [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	168	22
Other financial assets subject to impairment [member] | Impairment allowance [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	33	10
Other financial assets subject to impairment [member] | Impairment allowance [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	115	10
Financial assets at fair value through other comprehensive income, category [member] | Gross exposure [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	5,300	800
Financial assets at fair value through other comprehensive income, category [member] | Impairment allowance [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	£ 20	£ 2

Other disclosures - Credit Ri_5

Other disclosures - Credit Risk - Movement in gross exposure for loans and advances at amortised cost (Details) - Financial assets at amortised cost [member] - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Loans and advances [member]
Loans and advances at amortised cost
Write-offs		£ (643)	£ (627)
Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		11,334
Business activity in the year		410
Net drawdowns and repayments		401
Final repayments		(447)
Disposals		0
Write-offs	[1]	(7)
Ending balance		11,691
Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		36,120
Business activity in the year		2,487
Net drawdowns and repayments		(3,028)
Final repayments		(1,629)
Transfer to Barclays Group	[2]	(2,321)
Disposals	[3]	(1,747)
Write-offs	[1]	(556)
Ending balance		29,326
Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		97,878
Business activity in the year		23,479
Net drawdowns and repayments		15,614
Final repayments		(22,139)
Disposals		(9)
Write-offs	[1]	(80)
Ending balance		114,743
Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Stage 1 [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		9,604
Business activity in the year		410
Net drawdowns and repayments		334
Final repayments		(351)
Disposals		0
Write-offs	[1]	0
Ending balance		9,670
Stage 1 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(394)
Stage 1 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		114
Stage 1 [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(64)
Stage 1 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		17
Stage 1 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		29,541
Business activity in the year		2,416
Net drawdowns and repayments		(3,447)
Final repayments		(1,472)
Transfer to Barclays Group	[2]	(2,182)
Disposals	[3]	(1,493)
Write-offs	[1]	0
Ending balance		20,659
Stage 1 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(3,520)
Stage 1 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		948
Stage 1 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(153)
Stage 1 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		21
Stage 1 [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		89,200
Business activity in the year		19,309
Net drawdowns and repayments		10,474
Final repayments		(20,273)
Disposals		0
Write-offs	[1]	0
Ending balance		75,699
Stage 1 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(24,051)
Stage 1 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		1,589
Stage 1 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(688)
Stage 1 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		139
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		674
Business activity in the year		0
Net drawdowns and repayments		28
Final repayments		(67)
Disposals		0
Write-offs	[1]	0
Ending balance		879
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		394
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(114)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(67)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		31
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		4,450
Business activity in the year		66
Net drawdowns and repayments		259
Final repayments		(94)
Transfer to Barclays Group	[2]	(92)
Disposals	[3]	(183)
Write-offs	[1]	0
Ending balance		6,631
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		3,520
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(948)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(397)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		50
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		7,515
Business activity in the year		4,128
Net drawdowns and repayments		4,791
Final repayments		(1,606)
Disposals		(9)
Write-offs	[1]	0
Ending balance		36,883
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		24,051
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(1,589)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(507)
Lifetime expected credit losses [member] | Stage 2 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		109
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		1,056
Business activity in the year		0
Net drawdowns and repayments		39
Final repayments		(29)
Disposals		0
Write-offs	[1]	(7)
Ending balance		1,142
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		131
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(48)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		2,129
Business activity in the year		5
Net drawdowns and repayments		160
Final repayments		(63)
Transfer to Barclays Group	[2]	(47)
Disposals	[3]	(71)
Write-offs	[1]	(556)
Ending balance		2,036
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		550
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(71)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		1,163
Business activity in the year		42
Net drawdowns and repayments		349
Final repayments		(260)
Disposals		0
Write-offs	[1]	(80)
Ending balance		2,161
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		1,195
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		£ (248)
[1]	In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642m ( H1 201 9 : £ 580 m).
[2]	Other financial assets subject to impairment excluded in the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £187.1 bn (De cember 201 9 : £1 25.5 bn) and impairment allow ance of £168m (December 2019: £22 m). This comprises £ 33m ECL (December 2019: £10m) on £181.7 bn Stage 1 assets (December 201 9 : £1 24.7bn), £20 m (December 201 9: £2m) on £5.3 bn Stage 2 fair value through other compreh ensive income assets, cash collateral and settle ment assets (December 2019: £0.8bn) and £115 m (Dece mber 2019: £10m) on £115 m Stage 3 other assets (December 201 9: £10m)
[3]	3 Transfe rs to Barclays Group reported within Credit cards, unsecured loans and other retail lending portfolio includes the transfer of the Barclays Partner Finance retail portfolio to Barclays Principal Investments Limited during the period

Other disclosures - Credit Ri_6

Other disclosures - Credit Risk - Movement in impairment allowance on loans and advances at amortised cost (Details) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
Credit impairment charges and other provisions		£ 2,674	£ 510
ECL [member] | Loan commitments and financial guarantee contracts [member]
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
Credit impairment charges and other provisions		331
ECL [member] | Other financial assets subject to impairment [member]
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
Credit impairment charges and other provisions	[1]	149
Financial assets at amortised cost [member] | Loans and advances [member]
Loans and advances at amortised cost
Write-offs		(643)	£ (627)
Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		11,334
Business activity in the year		410
Net re-measurement and movement due to exposure and risk parameter changes		401
Final repayments		(447)
Disposals		0
Write-offs	[2]	(7)
Ending balance		11,691
Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		36,120
Business activity in the year		2,487
Net re-measurement and movement due to exposure and risk parameter changes		(3,028)
Final repayments		(1,629)
Transfer to Barclays Group	[1]	(2,321)
Disposals	[3]	(1,747)
Write-offs	[2]	(556)
Ending balance		29,326
Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		97,878
Business activity in the year		23,479
Net re-measurement and movement due to exposure and risk parameter changes		15,614
Final repayments		(22,139)
Disposals		(9)
Write-offs	[2]	(80)
Ending balance		114,743
Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Loans and advances [member]
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
ECL movement excluding assets derecognised due to disposals and write-offs		2,577
Recoveries and reimbursements		(280)
Exchange and other adjustments	[4]	(103)
Financial assets at amortised cost [member] | ECL [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		348
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		77
Final repayments		(2)
Disposals	[3]	0
Write-offs	[2]	(7)
Ending balance		416
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
ECL movement excluding assets derecognised due to disposals and write-offs		75
Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		2,617
Business activity in the year		35
Net re-measurement and movement due to exposure and risk parameter changes		1,392
Final repayments		(26)
Transfer to Barclays Group	[1]	(82)
Disposals	[3]	(73)
Write-offs	[2]	(556)
Ending balance		3,307
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
ECL movement excluding assets derecognised due to disposals and write-offs		1,319
Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		731
Business activity in the year		243
Net re-measurement and movement due to exposure and risk parameter changes		1,009
Final repayments		(69)
Disposals	[3]	0
Write-offs	[2]	(80)
Ending balance		1,834
Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost
ECL movement excluding assets derecognised due to disposals and write-offs		1,183
Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		9,604
Business activity in the year		410
Net re-measurement and movement due to exposure and risk parameter changes		334
Final repayments		(351)
Disposals		0
Write-offs	[2]	0
Ending balance		9,670
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(394)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		114
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(64)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		17
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		29,541
Business activity in the year		2,416
Net re-measurement and movement due to exposure and risk parameter changes		(3,447)
Final repayments		(1,472)
Transfer to Barclays Group	[1]	(2,182)
Disposals	[3]	(1,493)
Write-offs	[2]	0
Ending balance		20,659
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(3,520)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		948
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(153)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		21
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		89,200
Business activity in the year		19,309
Net re-measurement and movement due to exposure and risk parameter changes		10,474
Final repayments		(20,273)
Disposals		0
Write-offs	[2]	0
Ending balance		75,699
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(24,051)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		1,589
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(688)
Stage 1 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		139
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		16
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		(6)
Final repayments		0
Disposals	[3]	0
Write-offs	[2]	0
Ending balance		12
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(1)
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		3
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		362
Business activity in the year		23
Net re-measurement and movement due to exposure and risk parameter changes		55
Final repayments		(10)
Transfer to Barclays Group	[1]	(16)
Disposals	[3]	(8)
Write-offs	[2]	0
Ending balance		456
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(78)
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		134
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(10)
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		4
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		114
Business activity in the year		19
Net re-measurement and movement due to exposure and risk parameter changes		136
Final repayments		(18)
Disposals	[3]	0
Write-offs	[2]	0
Ending balance		206
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		(55)
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		12
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(2)
Stage 1 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		674
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		28
Final repayments		(67)
Disposals		0
Write-offs	[2]	0
Ending balance		879
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		394
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(114)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(67)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		31
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		4,450
Business activity in the year		66
Net re-measurement and movement due to exposure and risk parameter changes		259
Final repayments		(94)
Transfer to Barclays Group	[1]	(92)
Disposals	[3]	(183)
Write-offs	[2]	0
Ending balance		6,631
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		3,520
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(948)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(397)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		50
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		7,515
Business activity in the year		4,128
Net re-measurement and movement due to exposure and risk parameter changes		4,791
Final repayments		(1,606)
Disposals		(9)
Write-offs	[2]	0
Ending balance		36,883
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		24,051
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(1,589)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(507)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		109
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		40
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		22
Final repayments		(1)
Disposals	[3]	0
Write-offs	[2]	0
Ending balance		54
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		1
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(3)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(6)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		1
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		784
Business activity in the year		11
Net re-measurement and movement due to exposure and risk parameter changes		824
Final repayments		(12)
Transfer to Barclays Group	[1]	(25)
Disposals	[3]	(20)
Write-offs	[2]	0
Ending balance		1,340
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		78
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(134)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(171)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		5
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		234
Business activity in the year		212
Net re-measurement and movement due to exposure and risk parameter changes		334
Final repayments		(15)
Disposals	[3]	0
Write-offs	[2]	0
Ending balance		770
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		55
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		(12)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(39)
Lifetime expected credit losses [member] | Stage 2 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		1
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		1,056
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		39
Final repayments		(29)
Disposals		0
Write-offs	[2]	(7)
Ending balance		1,142
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		131
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(48)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		2,129
Business activity in the year		5
Net re-measurement and movement due to exposure and risk parameter changes		160
Final repayments		(63)
Transfer to Barclays Group	[1]	(47)
Disposals	[3]	(71)
Write-offs	[2]	(556)
Ending balance		2,036
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		550
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(71)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		1,163
Business activity in the year		42
Net re-measurement and movement due to exposure and risk parameter changes		349
Final repayments		(260)
Disposals		0
Write-offs	[2]	(80)
Ending balance		2,161
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		1,195
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | Gross exposure [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(248)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member]
Loans and advances at amortised cost
Opening balance		292
Business activity in the year		0
Net re-measurement and movement due to exposure and risk parameter changes		61
Final repayments		(1)
Disposals	[3]	0
Write-offs	[2]	(7)
Ending balance		350
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		6
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Home loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(1)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member]
Loans and advances at amortised cost
Opening balance		1,471
Business activity in the year		1
Net re-measurement and movement due to exposure and risk parameter changes		513
Final repayments		(4)
Transfer to Barclays Group	[1]	(41)
Disposals	[3]	(45)
Write-offs	[2]	(556)
Ending balance		1,511
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		181
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Credit cards, unsecured and other retail lending [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		(9)
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member]
Loans and advances at amortised cost
Opening balance		383
Business activity in the year		12
Net re-measurement and movement due to exposure and risk parameter changes		539
Final repayments		(36)
Disposals	[3]	0
Write-offs	[2]	(80)
Ending balance		858
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 1 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 2 [member]
Loans and advances at amortised cost
Net transfers between stages		0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers to Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		41
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Financial assets at amortised cost [member] | ECL [member] | Wholesale loans [member] | Transfers from Stage 3 [member]
Loans and advances at amortised cost
Net transfers between stages		£ (1)
[1]	Other financial assets subject to impairment excluded in the table s above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income and other assets. These have a total gross exposure of £187.1 bn (De cember 201 9 : £1 25.5 bn) and impairment allow ance of £168m (December 2019: £22 m). This comprises £ 33m ECL (December 2019: £10m) on £181.7 bn Stage 1 assets (December 201 9 : £1 24.7bn), £20 m (December 201 9: £2m) on £5.3 bn Stage 2 fair value through other compreh ensive income assets, cash collateral and settle ment assets (December 2019: £0.8bn) and £115 m (Dece mber 2019: £10m) on £115 m Stage 3 other assets (December 201 9: £10m)
[2]	In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642m ( H1 201 9 : £ 580 m).
[3]	3 Transfe rs to Barclays Group reported within Credit cards, unsecured loans and other retail lending portfolio includes the transfer of the Barclays Partner Finance retail portfolio to Barclays Principal Investments Limited during the period
[4]	Recoveries and reimbursements includes a net gain in relation to reimbursements from guarantee contracts held with third parties of £ 279 m and post write off recoveries of £ 1 m. 4 Includes foreign exchange and interest and fees in suspense

Other disclosures - Credit Ri_7

Other disclosures - Credit Risk - Movement in loans and advances at amortised cost (Narrative) (Details) - GBP (£) £ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Financial guarantee contracts [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Post write-off recoveries		£ 1
Net release in ECL		279
Financial assets at amortised cost [member] | Loans and advances [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs		643	£ 627
Post write-off recoveries		1	47
Net write-offs		642	£ 580
Financial assets	[1]	150,203		£ 141,636
Financial assets at amortised cost [member] | Loans and advances [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		105,354		127,853
Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		42,229		11,581
Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,620		2,202
Financial assets at amortised cost [member] | Home loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	11,275		10,986
Financial assets at amortised cost [member] | Home loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		9,658		9,588
Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		825		634
Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		792		764
Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	26,019		33,503
Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		20,203		29,179
Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		5,291		3,666
Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		525		658
Financial assets at amortised cost [member] | Wholesale loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	112,909		97,147
Financial assets at amortised cost [member] | Wholesale loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		75,493		89,086
Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		36,113		7,281
Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		1,303		780
Gross exposure [member] | Other financial assets subject to impairment [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		187,100		125,500
Gross exposure [member] | Other financial assets subject to impairment [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		181,700		124,700
Gross exposure [member] | Other financial assets subject to impairment [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		115		10
Gross exposure [member] | Financial assets at fair value through other comprehensive income [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		5,300		800
Gross exposure [member] | Financial assets at amortised cost [member] | Loans and advances [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	155,760		145,332
Gross exposure [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		106,028		128,345
Gross exposure [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		44,393		12,639
Gross exposure [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		5,339		4,348
Gross exposure [member] | Financial assets at amortised cost [member] | Home loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	7
Financial assets	[1]	11,691		11,334
Gross exposure [member] | Financial assets at amortised cost [member] | Home loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		9,670		9,604
Gross exposure [member] | Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		879		674
Gross exposure [member] | Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	7
Financial assets		1,142		1,056
Gross exposure [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	556
Financial assets	[1]	29,326		36,120
Gross exposure [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		20,659		29,541
Gross exposure [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		6,631		4,450
Gross exposure [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	556
Financial assets		2,036		2,129
Gross exposure [member] | Financial assets at amortised cost [member] | Wholesale loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	80
Financial assets	[1]	114,743		97,878
Gross exposure [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		75,699		89,200
Gross exposure [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		36,883		7,515
Gross exposure [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	80
Financial assets		2,161		1,163
ECL [member] | Other financial assets subject to impairment [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		168		22
ECL [member] | Other financial assets subject to impairment [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		33		10
ECL [member] | Other financial assets subject to impairment [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		115		10
ECL [member] | Financial assets at fair value through other comprehensive income [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		20		2
ECL [member] | Financial assets at amortised cost [member] | Loans and advances [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets	[1]	5,557		3,696
ECL [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		674		492
ECL [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,164		1,058
ECL [member] | Financial assets at amortised cost [member] | Loans and advances [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Financial assets		2,719		2,146
ECL [member] | Financial assets at amortised cost [member] | Home loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	7
Financial assets	[1]	416		348
ECL [member] | Financial assets at amortised cost [member] | Home loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		12		16
ECL [member] | Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		54		40
ECL [member] | Financial assets at amortised cost [member] | Home loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	7
Financial assets		350		292
ECL [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	556
Financial assets	[1]	3,307		2,617
ECL [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		456		362
ECL [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		1,340		784
ECL [member] | Financial assets at amortised cost [member] | Credit cards, unsecured and other retail lending [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	556
Financial assets		1,511		1,471
ECL [member] | Financial assets at amortised cost [member] | Wholesale loans [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	80
Financial assets	[1]	1,834		731
ECL [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Stage 1 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		206		114
ECL [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Stage 2 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	0
Financial assets		770		234
ECL [member] | Financial assets at amortised cost [member] | Wholesale loans [member] | Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Gross write-offs	[2]	80
Financial assets		£ 858		£ 383
[1]	Other financial assets subject to impairment ex cluded in the table above include cash collateral and settlement balances, financial assets at fair value through other comprehensive income, accrued income and sundry debtors. These have a total gross exposure of £ 187.1 bn (December 2019: £ 125.5 bn) and impairment allowance of £ 168 m (December 2019: £ 22 m). This compri ses £ 33 m (December 2019: £ 10 m) ECL on £ 181.7 bn (December 2019: £ 124.7 bn) Stage 1 assets, £ 20 m ( December 201 9 : £ 2 m) on £ 5.3 bn (December 2019: £ 0.8 bn) Stage 2 fair value through other comprehensive income assets and £ 115 m (December 2019: £ 10 m) on £ 115 m (December 2019: £ 10 m) Stage 3 other assets. Loan commitments and financial guarantee contracts have total ECL of £ 593 m (December 2019: £ 252 m).
[2]	In H1 2020 , gross write-offs amounted to £ 643 m ( H1 201 9 : £ 627 m) and post write-off recoveries amounted to £ 1 m ( H1 2019 : £ 47 m). Net write-offs represent gross write-offs less post write-off recoveries and amounted to £ 642m ( H1 201 9 : £ 580 m).

Other disclosures - Credit Ri_8

Other disclosures - Credit Risk - Movement in gross exposure for loan commitment and financial guarantees (Details) - Gross exposure [member] £ in Millions	6 Months Ended
	Jun. 30, 2020GBP (£)
Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	£ 34
Net transfers between stages	0
Business activity in the year	136
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	10
Limit management	(19)
Ending balance	161
Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	80,377
Net transfers between stages	0
Business activity in the year	3,699
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	5,388
Limit management	(5,430)
Ending balance	84,034
Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	195,690
Net transfers between stages	0
Business activity in the year	28,374
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	11,558
Limit management	(39,236)
Ending balance	196,386
Stage 1 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	34
Net transfers between stages	0
Business activity in the year	136
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	10
Limit management	(19)
Ending balance	161
Stage 1 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	78,257
Net transfers between stages	(2,633)
Business activity in the year	3,641
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	5,735
Limit management	(5,165)
Ending balance	79,835
Stage 1 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	183,001
Net transfers between stages	(38,412)
Business activity in the year	24,878
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	10,996
Limit management	(36,233)
Ending balance	144,230
Lifetime expected credit losses [member] | Stage 2 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Lifetime expected credit losses [member] | Stage 2 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	2,053
Net transfers between stages	2,394
Business activity in the year	57
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	(74)
Limit management	(261)
Ending balance	4,169
Lifetime expected credit losses [member] | Stage 2 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	12,053
Net transfers between stages	37,380
Business activity in the year	3,389
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	794
Limit management	(2,764)
Ending balance	50,852
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	67
Net transfers between stages	239
Business activity in the year	1
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	(273)
Limit management	(4)
Ending balance	30
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	636
Net transfers between stages	1,032
Business activity in the year	107
Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes	(232)
Limit management	(239)
Ending balance	£ 1,304

Other disclosures - Credit Ri_9

Other disclosures - Credit Risk - Movement in provision on loan commitments and financial guarantees (Details) - ECL [member] £ in Millions	6 Months Ended
	Jun. 30, 2020GBP (£)
Loan commitments and financial guarantee contracts
Opening balance	£ 252
Ending balance	593
Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	51
Net transfers between stages	0
Business activity in the year	2
Net re-measurement and movement due to exposure and risk parameter changes	50
Limit management	(3)
Ending balance	100
Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	201
Net transfers between stages	0
Business activity in the year	37
Net re-measurement and movement due to exposure and risk parameter changes	280
Limit management	(25)
Ending balance	493
Stage 1 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Stage 1 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	22
Net transfers between stages	2
Business activity in the year	1
Net re-measurement and movement due to exposure and risk parameter changes	16
Limit management	0
Ending balance	41
Stage 1 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	63
Net transfers between stages	(22)
Business activity in the year	7
Net re-measurement and movement due to exposure and risk parameter changes	13
Limit management	(7)
Ending balance	54
Lifetime expected credit losses [member] | Stage 2 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Lifetime expected credit losses [member] | Stage 2 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	15
Net transfers between stages	(1)
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	27
Limit management	0
Ending balance	41
Lifetime expected credit losses [member] | Stage 2 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	97
Net transfers between stages	15
Business activity in the year	30
Net re-measurement and movement due to exposure and risk parameter changes	285
Limit management	(18)
Ending balance	409
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Home loans [member]
Loan commitments and financial guarantee contracts
Opening balance	0
Net transfers between stages	0
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	0
Limit management	0
Ending balance	0
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Credit cards, unsecured and other retail lending [member]
Loan commitments and financial guarantee contracts
Opening balance	14
Net transfers between stages	(1)
Business activity in the year	1
Net re-measurement and movement due to exposure and risk parameter changes	7
Limit management	(3)
Ending balance	18
Lifetime expected credit losses [member] | Credit Impaired - Stage 3 [member] | Wholesale loans [member]
Loan commitments and financial guarantee contracts
Opening balance	41
Net transfers between stages	7
Business activity in the year	0
Net re-measurement and movement due to exposure and risk parameter changes	(18)
Limit management	0
Ending balance	£ 30

Other disclosures - Credit R_10

Other disclosures - Credit Risk - Measurement uncertainty (Narrative) (Details) - Credit risk [member]	6 Months Ended
	Jun. 30, 2020
Disclosure of nature and extent of risks arising from financial instruments [line items]
Description of method, parameters and assumptions used in preparing sensitivity analysis reflecting interdependencies between risk variables	The Barclays Bank Group uses a five-scenario model to calculate ECL. Absent the conditions surrounding the COVID-19 pandemic, a Baseline scenario is typically generated based on an external consensus forecast assembled from key sources, including HM Treasury (short and medium-term forecasts), Bloomberg (based on median of economic forecasts) and the Urban Land Institute (for US House Prices). In addition, two adverse scenarios (Downside 1 and Downside 2) and two favourable scenarios (Upside 1 and Upside 2) are derived, with associated probability weightings. The adverse scenarios are typically calibrated to a similar severity to internal stress tests, whilst also considering IFRS 9 specific sensitivities and non-linearity. Downside 2 is typically benchmarked to the Bank of England’s annual cyclical scenarios and to the most severe scenario from Moody’s inventory, but is not designed to be the same. The favourable scenarios are generally calibrated to be symmetric to the adverse scenarios, subject to a ceiling calibrated to relevant recent favourable benchmark scenarios. The scenarios include eight economic variables (GDP, unemployment, House Price Index (HPI) and base rates in both the UK and US markets), and expanded variables using statistical models based on historical correlations. The upside and downside shocks are designed to evolve over a five-year stress horizon, with all five scenarios converging to a steady state after approximately eight years. To calculate ECL a probability weight is assigned to each scenario. Following the onset of the COVID-19 pandemic, the Barclays Bank Group generated a Baseline scenario in March 2020 that reflected the most recent economic forecasts available in the market (combined with internal assumptions) and estimated impacts from significant support measures taken by Barclays, central banks and governments across the Barclays Bank Group’s key markets. This scenario assumed a strong contraction in GDP and a sharp rise in unemployment in 2020 across both the UK and US, and required a recalibration of probability weights. This scenario was superseded by a further revised Baseline scenario generated in June 2020, based broadly on the latest economic forecasts which recognise some the impacts from the various support measures still in place across the Barclays Bank Group’s key markets. Upside and downside scenarios were also regenerated in June 2020 (together with the revised Baseline scenario, the “COVID-19 Scenarios”). The downside scenarios reflect slower economic growth than the Baseline with social distancing measures continuing to drag GDP. Economic growth begins to recover later in 2020 in Downside 1 but only in 2021 in the Downside 2 scenario. The upside scenarios reflect a faster rebound in economic growth than the Baseline with a sharp decrease in infection rates and an almost fully reopened economy. Scenario weights were also revised in June 2020 with greater weight being applied to the tail scenarios (Upside 2 and Downside 2). This reflects the significant range of uncertainty in the economic environment compared to previous quarters given the conditions surrounding the COVID-19 pandemic. The economic environment remains uncertain and future impairment charges may be subject to further volatility (including from changes to macroeconomic variable forecasts) depending on the longevity of the COVID-19 pandemic and related containment measures, as well as the longer term effectiveness of central bank, government and other support measures.
Term at which scenario converges to steady state	8 years

Other disclosures - Credit R_11

Other disclosures - Credit Risk - Measurement uncertainty - Baseline average macroeconomic variables used in the calculation of ECL (Details) - Baseline [member]	Jun. 30, 2020	Dec. 31, 2019
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	25.40%	40.80%
GDP [member] | United Kingdom | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(8.70%)
GDP [member] | United Kingdom | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.10%
GDP [member] | United Kingdom | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.90%
GDP [member] | United Kingdom | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(51.40%)
GDP [member] | US | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(4.20%)
GDP [member] | US | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.40%
GDP [member] | US | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(0.30%)
GDP [member] | US | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(30.40%)
Unemployment [member] | United Kingdom | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.60%
Unemployment [member] | United Kingdom | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.50%
Unemployment [member] | United Kingdom | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.40%
Unemployment [member] | United Kingdom | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	8.00%
Unemployment [member] | US | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	9.30%
Unemployment [member] | US | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	7.60%
Unemployment [member] | US | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.50%
Unemployment [member] | US | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	13.40%
HPI [member] | United Kingdom | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.60%
HPI [member] | United Kingdom | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.00%
HPI [member] | United Kingdom | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.00%
HPI [member] | United Kingdom | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(1.50%)
HPI [member] | US | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	1.10%
HPI [member] | US | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	1.80%
HPI [member] | US | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(0.80%)
HPI [member] | US | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(1.90%)
Bank Rate [member] | United Kingdom | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.20%
Bank Rate [member] | United Kingdom | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%
Bank Rate [member] | United Kingdom | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%
Bank Rate [member] | United Kingdom | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%
Federal funds rate [member] | US | 2020 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.50%
Federal funds rate [member] | US | 2021 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%
Federal funds rate [member] | US | 2022 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%
Federal funds rate [member] | US | Expected Worst Point [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%

Other disclosures - Credit R_12

Other disclosures - Credit Risk - Measurement uncertainty - Scenario probability weighting (Details)	Jun. 30, 2020	Dec. 31, 2019
Upside 2 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	20.30%	10.10%
Upside 1 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	22.40%	23.10%
Baseline [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	25.40%	40.80%
Downside 1 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	17.50%	22.70%
Downside 2 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	14.40%	3.30%

Other disclosures - Credit R_13

Other disclosures - Credit Risk - Measurement uncertainty - Macroeconomic variables (specific bases and 5-year averages) (Details)	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Upside 2 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	20.30%	10.10%
Upside 2 [member] | GDP [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	32.70%	4.20%	4.50%
Upside 2 [member] | GDP [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	8.90%	3.20%	3.40%
Upside 2 [member] | GDP [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	19.10%	4.20%	4.80%
Upside 2 [member] | GDP [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.90%	3.50%	3.70%
Upside 2 [member] | Unemployment [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	3.50%	3.40%	3.40%
Upside 2 [member] | Unemployment [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.00%	3.50%	3.70%
Upside 2 [member] | Unemployment [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.10%	3.00%	3.00%
Upside 2 [member] | Unemployment [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.40%	3.10%	3.10%
Upside 2 [member] | HPI [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	45.30%	46.00%	46.40%
Upside 2 [member] | HPI [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	7.80%	7.90%	7.90%
Upside 2 [member] | HPI [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	32.30%	37.10%	36.90%
Upside 2 [member] | HPI [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.80%	6.50%	6.50%
Upside 2 [member] | Bank Rate [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%	0.50%	0.80%
Upside 2 [member] | Bank Rate [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.40%	0.50%	0.80%
Upside 2 [member] | Federal funds rate [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	1.50%	2.30%
Upside 2 [member] | Federal funds rate [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.60%	1.60%	2.30%
Upside 1 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	22.40%	23.10%
Upside 1 [member] | GDP [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	26.40%	2.90%	3.10%
Upside 1 [member] | GDP [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	7.20%	2.40%	2.60%
Upside 1 [member] | GDP [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	13.50%	3.30%	3.70%
Upside 1 [member] | GDP [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.40%	2.80%	3.00%
Upside 1 [member] | Unemployment [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	3.60%	3.80%	3.90%
Upside 1 [member] | Unemployment [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.30%	3.90%	4.00%
Upside 1 [member] | Unemployment [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.40%	3.50%	3.40%
Upside 1 [member] | Unemployment [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.10%	3.60%	3.50%
Upside 1 [member] | HPI [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	27.20%	32.00%	32.60%
Upside 1 [member] | HPI [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.00%	5.70%	5.80%
Upside 1 [member] | HPI [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	20.90%	23.30%	30.20%
Upside 1 [member] | HPI [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	3.90%	4.30%	5.40%
Upside 1 [member] | Bank Rate [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%	0.50%	0.80%
Upside 1 [member] | Bank Rate [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	0.50%	0.80%
Upside 1 [member] | Federal funds rate [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	1.50%	2.30%
Upside 1 [member] | Federal funds rate [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.50%	1.70%	2.30%
Baseline [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	25.40%	40.80%
Baseline [member] | GDP [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.40%	1.60%	1.70%
Baseline [member] | GDP [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.40%	1.60%	1.70%
Baseline [member] | GDP [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	3.30%	1.90%	2.10%
Baseline [member] | GDP [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	3.30%	1.90%	2.10%
Baseline [member] | Unemployment [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.90%	4.20%	4.30%
Baseline [member] | Unemployment [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	4.90%	4.20%	4.30%
Baseline [member] | Unemployment [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.30%	3.90%	3.70%
Baseline [member] | Unemployment [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.30%	3.90%	3.70%
Baseline [member] | HPI [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.30%	3.10%	3.20%
Baseline [member] | HPI [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.30%	3.10%	3.20%
Baseline [member] | HPI [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.30%	3.00%	4.10%
Baseline [member] | HPI [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.30%	3.00%	4.10%
Baseline [member] | Bank Rate [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.20%	0.70%	1.00%
Baseline [member] | Bank Rate [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.20%	0.70%	1.00%
Baseline [member] | Federal funds rate [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	1.70%	2.70%
Baseline [member] | Federal funds rate [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	1.70%	2.70%
Downside 1 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	17.50%	22.70%
Downside 1 [member] | GDP [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	1.60%	0.20%	0.30%
Downside 1 [member] | GDP [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	5.20%	0.80%	0.90%
Downside 1 [member] | GDP [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.00%	0.40%	0.40%
Downside 1 [member] | GDP [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.70%	1.00%	1.10%
Downside 1 [member] | Unemployment [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	9.60%	5.70%	5.70%
Downside 1 [member] | Unemployment [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	6.20%	5.40%	5.10%
Downside 1 [member] | Unemployment [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	15.40%	5.30%	5.20%
Downside 1 [member] | Unemployment [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	8.40%	5.00%	4.70%
Downside 1 [member] | HPI [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(15.00%)	(8.20%)	(0.50%)
Downside 1 [member] | HPI [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(1.40%)	(1.10%)	0.90%
Downside 1 [member] | HPI [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(8.80%)	0.50%	0.00%
Downside 1 [member] | HPI [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(0.50%)	1.30%	2.40%
Downside 1 [member] | Bank Rate [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	2.80%	2.50%
Downside 1 [member] | Bank Rate [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%	2.50%	2.30%
Downside 1 [member] | Federal funds rate [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.40%	3.00%	3.00%
Downside 1 [member] | Federal funds rate [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	2.90%	3.00%
Downside 2 [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	14.40%	3.30%
Downside 2 [member] | GDP [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	1.20%	(4.70%)	(4.10%)
Downside 2 [member] | GDP [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	2.80%	(0.70%)	(0.60%)
Downside 2 [member] | GDP [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(3.10%)	(3.40%)	(3.30%)
Downside 2 [member] | GDP [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	1.80%	(0.50%)	(0.50%)
Downside 2 [member] | Unemployment [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	10.90%	8.70%	8.80%
Downside 2 [member] | Unemployment [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	7.20%	7.70%	7.90%
Downside 2 [member] | Unemployment [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	18.70%	8.50%	8.40%
Downside 2 [member] | Unemployment [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	10.90%	7.50%	7.40%
Downside 2 [member] | HPI [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(33.40%)	(32.40%)	(32.10%)
Downside 2 [member] | HPI [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(5.50%)	(6.50%)	(6.40%)
Downside 2 [member] | HPI [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(19.70%)	(19.80%)	(17.40%)
Downside 2 [member] | HPI [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	(3.10%)	(3.70%)	(2.60%)
Downside 2 [member] | Bank Rate [member] | United Kingdom | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.20%	4.00%	4.00%
Downside 2 [member] | Bank Rate [member] | United Kingdom | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.10%	3.70%	3.70%
Downside 2 [member] | Federal funds rate [member] | US | Specific bases [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.40%	3.50%	3.50%
Downside 2 [member] | Federal funds rate [member] | US | 5-year averages [member]
Disclosure of nature and extent of risks arising from financial instruments [line items]
Scenario probability weighting	0.30%	3.40%	3.40%