Banco Santander (SAN) 6-K 28 Jul 23 2023 Q2 Current report (foreign) Financial data

Cover Page

Cover Page	6 Months Ended
	Jun. 30, 2023
Cover [Abstract]
Document Type	6-K
Entity File Number	001-12518
Entity Registrant Name	Banco Santander, S.A.
Entity Address, Address Line One	28660 Boadilla del Monte (Madrid)
Entity Address, Country	ES
Entity Central Index Key	0000891478
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Period End Date	Jun. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - EUR (€) € in Millions		Jun. 30, 2023	Dec. 31, 2022
ASSETS
CASH, CASH BALANCES AT CENTRAL BANKS AND OTHER DEPOSITS ON DEMAND		€ 207,546	€ 223,073
FINANCIAL ASSETS HELD FOR TRADING		183,834	156,118
NON-TRADING FINANCIAL ASSETS MANDATORILY AT FAIR VALUE THROUGH PROFIT OR LOSS		5,796	5,713
FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS		9,645	8,989
FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME		86,756	85,239
FINANCIAL ASSETS AT AMORTISED COST		1,180,302	1,147,044
HEDGING DERIVATIVES		7,532	8,069
CHANGES IN THE FAIR VALUE OF HEDGED ITEMS IN PORTFOLIO HEDGES OF INTEREST RISK		(4,711)	(3,749)
INVESTMENTS		7,679	7,615
Joint venture entities		1,935	1,981
Associated entities		5,744	5,634
ASSETS UNDER INSURANCE OR REINSURANCE CONTRACTS		243	308
TANGIBLE ASSETS		34,159	34,073
Property, plant and equipment		33,118	33,044
Investment properties		1,041	1,029
INTANGIBLE ASSETS		19,528	18,645
Goodwill		14,126	13,741
Other intangible assets		5,402	4,904
TAX ASSETS		29,840	29,987
Current tax assets		8,793	9,200
Deferred tax assets		21,047	20,787
OTHER ASSETS		9,193	10,082
Insurance contracts linked to pensions		97	104
Inventories		10	11
Other		9,086	9,967
NON-CURRENT ASSETS HELD FOR SALE		3,151	3,453
TOTAL ASSETS		1,780,493	1,734,659
LIABILITIES
FINANCIAL LIABILITIES HELD FOR TRADING		134,888	115,185
FINANCIAL LIABILITIES DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS (*)	[1]	36,220	40,268
FINANCIAL LIABILITIES AT AMORTISED COST		1,446,882	1,423,858
HEDGING DERIVATIVES		10,288	9,228
CHANGES IN THE FAIR VALUE OF HEDGED ITEMS IN PORTFOLIO HEDGES OF INTEREST RATE RISK		(309)	(117)
LIABILITIES UNDER INSURANCE OR REINSURANCE CONTRACTS (*)	[1]	17,584	16,426
PROVISIONS		8,389	8,149
TAX LIABILITIES		9,648	9,468
Current tax liabilities		3,164	3,040
Deferred tax liabilities		6,484	6,428
OTHER LIABILITIES		14,859	14,609
LIABILITIES ASSOCIATED WITH NON-CURRENT ASSETS HELD FOR SALE		0	0
TOTAL LIABILITIES		1,678,449	1,637,074
SHAREHOLDERS´ EQUITY
SHAREHOLDERS´ EQUITY		127,258	124,732
CAPITAL		8,092	8,397
Called up paid capital		8,092	8,397
Unpaid capital which has been called up		0	0
SHARE PREMIUM		44,373	46,273
EQUITY INSTRUMENTS ISSUED OTHER THAN CAPITAL		704	688
Equity component of the compound financial instrument		0	0
Other equity instruments issued		704	688
OTHER EQUITY		196	175
ACCUMULATED RETAINED EARNINGS		74,112	66,702
REVALUATION RESERVES		0	0
OTHER RESERVES		(5,413)	(5,454)
(-) OWN SHARES		(47)	(675)
PROFIT ATTRIBUTABLE TO SHAREHOLDERS OF THE PARENT		5,241	9,605
(-) INTERIM DIVIDENDS		0	(979)
OTHER COMPREHENSIVE INCOME (LOSS)		(33,789)	(35,628)
ITEMS NOT RECLASSIFIED TO PROFIT OR LOSS		(4,956)	(4,635)
ITEMS THAT MAY BE RECLASSIFIED TO PROFIT OR LOSS		(28,833)	(30,993)
NON-CONTROLLING INTEREST		8,575	8,481
Other comprehensive income		(1,484)	(1,856)
Other items		10,059	10,337
TOTAL EQUITY		102,044	97,585
TOTAL LIABILITIES AND EQUITY		1,780,493	1,734,659
Pension and other post-retirement obligations
LIABILITIES
PROVISIONS		2,284	2,392
Other long term employee benefits
LIABILITIES
PROVISIONS		859	950
Taxes and other legal contingencies
LIABILITIES
PROVISIONS		2,558	2,074
Contingent liabilities and commitments
LIABILITIES
PROVISIONS		756	734
Other provisions
LIABILITIES
PROVISIONS		1,932	1,999
Loan commitments granted
SHAREHOLDERS´ EQUITY
MEMORANDUM ITEMS: OFF BALANCE SHEET AMOUNTS		283,903	274,075
Financial guarantees granted
SHAREHOLDERS´ EQUITY
MEMORANDUM ITEMS: OFF BALANCE SHEET AMOUNTS		14,401	12,856
Other commitments granted
SHAREHOLDERS´ EQUITY
MEMORANDUM ITEMS: OFF BALANCE SHEET AMOUNTS		113,266	92,672
For own-use
ASSETS
Property, plant and equipment		13,718	13,489
Leased out under an operating lease
ASSETS
Property, plant and equipment		19,400	19,555
Investment properties		€ 872	€ 804
[1]See impact of IFRS 17 as at 31 December 2022 (see Note 1.b).

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Income Statements - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
IFRS Statement [Line Items]
Interest income	€ 49,922	€ 30,869
Interest expense	(29,002)	(12,460)
Interest income/ (charges)	20,920	18,409
Dividend income	382	335
Income from companies accounted for using the equity method	296	312
Commission income	8,277	7,792
Commission expense	(2,174)	(1,940)
Gain or losses on financial assets and liabilities not measured at fair value through profit or loss, net	22	233
Gain or losses on financial assets and liabilities held for trading, net	263	718
Gains or losses on non-trading financial assets and liabilities mandatorily at fair value through profit or loss	26	(15)
Gain or losses on financial assets and liabilities measured at fair value through profit or loss, net	(194)	756
Gain or losses from hedge accounting, net	108	128
Exchange differences, net	1,077	(1,077)
Other operating income	480	819
Other operating expenses	(1,504)	(1,461)
Income from assets under insurance and reinsurance contracts	414	1,349
Expenses from liabilities under insurance and reinsurance contracts	(383)	(1,238)
Total income	28,010	25,120
Administrative expenses	(10,873)	(9,993)
Staff costs	(6,603)	(5,948)
Other general and administrative expenses	(4,270)	(4,045)
Depreciation and amortisation cost	(1,606)	(1,442)
Provisions or reversal of provisions, net	(1,330)	(935)
Impairment or reversal of impairment of financial assets not measured at fair value through profit or loss and net gains and losses from modifications	(6,237)	(4,763)
Impairment of investments in subsidiaries, joint ventures and associates, net	0	0
Impairment on non-financial assets, net	(92)	(61)
Tangible assets	(78)	(24)
Intangible assets	(5)	(29)
Others	(9)	(8)
Gain or losses on non financial assets and investments, net	277	(4)
Gains or losses on non-current assets held for sale not classified as discontinued operations	(59)	(7)
Operating profit/(loss) before tax	8,090	7,915
Tax expense or income from continuing operations	(2,281)	(2,374)
Profit/(loss) for the period from continuing operations	5,809	5,541
Profit/( loss) after tax from discontinued operations	0	0
Profit/(loss) for the period	5,809	5,541
Profit attributable to non-controlling interests	568	647
Profit/(loss) attributable to the parent	€ 5,241	€ 4,894
Earnings/(losses) per share
Basic (in euro per share)	€ 0.31	€ 0.27
Diluted (in euro per share)	€ 0.31	€ 0.27
Other financial assets and liabilities
IFRS Statement [Line Items]
Gain or losses on financial assets and liabilities not measured at fair value through profit or loss, net	€ 16	€ 205
Financial assets at fair value through other comprehensive income
IFRS Statement [Line Items]
Interest income	3,629	2,211
Impairment or reversal of impairment of financial assets not measured at fair value through profit or loss and net gains and losses from modifications	6	(1)
Financial assets at amortised cost
IFRS Statement [Line Items]
Interest income	37,503	26,073
Gain or losses on financial assets and liabilities not measured at fair value through profit or loss, net	6	28
Impairment or reversal of impairment of financial assets not measured at fair value through profit or loss and net gains and losses from modifications	(6,243)	(4,762)
Other interest income
IFRS Statement [Line Items]
Interest income	8,790	2,585
Reclassification of financial assets at fair value through other comprehensive income
IFRS Statement [Line Items]
Gain or losses on financial assets and liabilities held for trading, net	0	0
Gains or losses on non-trading financial assets and liabilities mandatorily at fair value through profit or loss	0	0
Reclassification of financial assets at amortized cost
IFRS Statement [Line Items]
Gain or losses on financial assets and liabilities held for trading, net	0	0
Gains or losses on non-trading financial assets and liabilities mandatorily at fair value through profit or loss	0	0
Other gains (losses)
IFRS Statement [Line Items]
Gain or losses on financial assets and liabilities held for trading, net	263	718
Gains or losses on non-trading financial assets and liabilities mandatorily at fair value through profit or loss	€ 26	€ (15)

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Recognized Income and Expense - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Statement of comprehensive income [abstract]
CONSOLIDATED PROFIT/(LOSS) FOR THE PERIOD	€ 5,809	€ 5,541
OTHER RECOGNISED INCOME AND EXPENSE	2,091	214
Items that will not be reclassified to profit or loss	(489)	433
Actuarial gains and losses on defined benefit pension plans	(402)	843
Non-current assets held for sale	0	0
Other recognised income and expense of investments in subsidiaries, joint ventures and associates	(5)	(1)
Changes in the fair value of equity instruments measured at fair value through other comprehensive income	(201)	(334)
Gains or losses resulting from the accounting for hedges of equity instruments measured at fair value through other comprehensive income, net	0	0
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedged item)	(41)	37
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedging instrument)	41	(37)
Changes in the fair value of financial liabilities at fair value through profit or loss attributable to changes in credit risk	(50)	123
Income tax relating to items that will not be reclassified	169	(198)
Items that may be reclassified to profit or loss	2,580	(219)
Hedges of net investments in foreign operations (effective portion)	(1,527)	(1,693)
Revaluation gains (losses)	(1,527)	(1,693)
Amounts transferred to income statement	0	0
Other reclassifications	0	0
Exchange differences	3,094	4,462
Revaluation gains (losses)	3,056	4,462
Amounts transferred to income statement	38	0
Other reclassifications	0	0
Cash flow hedges (effective portion)	596	(2,604)
Revaluation gains (losses)	(1,318)	(942)
Amounts transferred to income statement	1,914	(1,662)
Transferred to initial carrying amount of hedged items	0	0
Other reclassifications	0	0
Hedging instruments (items not designated)	0	0
Revaluation gains (losses)	0	0
Amounts transferred to income statement	0	0
Other reclassifications	0	0
Debt instruments at fair value with changes in other comprehensive income	790	(1,804)
Revaluation gains (losses)	782	(2,411)
Amounts transferred to income statement	8	(190)
Other reclassifications	0	797
Non-current assets held for sale	0	0
Revaluation gains (losses)	0	0
Amounts transferred to income statement	0	0
Other reclassifications	0	0
Share of other recognised income and expense of investments	88	139
Income tax relating to items that may be reclassified to profit or loss	(461)	1,281
Total recognised income and expenses for the year	7,900	5,755
Attributable to non-controlling interests	937	664
Attributable to the parent	€ 6,963	€ 5,091

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Changes in Total Equity - EUR (€) € in Millions	Total	Capital	Share premium	Equity instruments issued (not capital)	Other equity instruments	Accumulated retained earnings	Revaluation reserves	Other reserves	(-) Own shares	Profit Attributable to shareholders of the parent	(-) Interim dividends	Other comprehensive income	Non-Controlling interest, Other comprehensive income	Non-Controlling interest, Other items
Equity at beginning of period (Previously stated) at Dec. 31, 2021	€ 97,053	€ 8,670	€ 47,979	€ 658	€ 152	€ 60,273	€ 0	€ (4,477)	€ (894)	€ 8,124	€ (836)	€ (32,719)	€ (2,104)	€ 12,227
Equity at beginning of period (Adjustments due to changes in accounting policies) at Dec. 31, 2021	0
Equity at beginning of period (Adjustments due to errors) at Dec. 31, 2021	0
Equity at beginning of period at Dec. 31, 2021	97,053	8,670	47,979	658	152	60,273	0	(4,477)	(894)	8,124	(836)	(32,719)	(2,104)	12,227
Total recognised income and expense	5,755									4,894		197	17	647
Other changes in equity	(5,346)	(273)	(1,706)	14	(1)	6,425		(561)	884	(8,124)	836	(4)	(3)	(2,833)
Issuance of ordinary shares	0
Issuance of preferred shares	0
Issuance of other financial instruments	0
Maturity of other financial instruments	0
Conversion of financial liabilities into equity	0
Capital reduction	0	(273)	(1,706)					273	1,706
Dividends recognised as distributions to owners	(1,236)					(869)
Dividends recognised as distributions to non-controlling interests														(367)
Purchase of equity instruments	(1,173)								(1,173)
Disposal of equity instruments	357							6	351
Transfer from equity to liabilities	0
Transfer from liabilities to equity	0
Transfers between equity items	1					7,294		(1)		(8,124)	836	(4)	(3)	3
Increases (decreases) due to business combinations	31													31
Share-based payment	(42)				(42)
Others increases or (-) decreases of the equity	(3,284)			14	41			(839)						(2,500)
Equity at end of period at Jun. 30, 2022	97,462	8,397	46,273	672	151	66,698	0	(5,038)	(10)	4,894	0	(32,526)	(2,090)	10,041
Equity at beginning of period (Previously stated) at Dec. 31, 2022	97,585	8,397	46,273	688	175	66,702	0	(5,454)	(675)	9,605	(979)	(35,628)	(1,856)	10,337
Equity at beginning of period (Adjustments due to changes in accounting policies) at Dec. 31, 2022	0
Equity at beginning of period (Adjustments due to errors) at Dec. 31, 2022	0
Equity at beginning of period at Dec. 31, 2022	97,585	8,397	46,273	688	175	66,702	0	(5,454)	(675)	9,605	(979)	(35,628)	(1,856)	10,337
Total recognised income and expense	7,900									5,241		1,722	369	568
Other changes in equity	(3,441)	(305)	(1,900)	16	21	7,410		41	628	(9,605)	979	117	3	(846)
Issuance of ordinary shares	1													1
Issuance of preferred shares	0
Issuance of other financial instruments	0
Maturity of other financial instruments	0
Conversion of financial liabilities into equity	0
Capital reduction	0	(305)	(1,900)					305	1,900
Dividends recognised as distributions to owners	(1,399)					(963)
Dividends recognised as distributions to non-controlling interests														(436)
Purchase of equity instruments	(1,723)								(1,723)
Disposal of equity instruments	462							11	451
Transfer from equity to liabilities	0
Transfer from liabilities to equity	0
Transfers between equity items	0					8,373		136		(9,605)	979	117	3	(3)
Increases (decreases) due to business combinations	(304)													(304)
Share-based payment	(66)				(66)
Others increases or (-) decreases of the equity	(412)			16	87			(411)						(104)
Equity at end of period at Jun. 30, 2023	€ 102,044	€ 8,092	€ 44,373	€ 704	€ 196	€ 74,112	€ 0	€ (5,413)	€ (47)	€ 5,241	€ 0	€ (33,789)	€ (1,484)	€ 10,059

Unaudited Condensed Consolida_5

Unaudited Condensed Consolidated Statements of Cash Flows - EUR (€) € in Millions		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Statement of cash flows [abstract]
CASH FLOWS FROM OPERATING ACTIVITIES		€ (11,895)	€ 7,386
Profit/(loss) for the period		5,809	5,541
Adjustments made to obtain the cash flows from operating activities		13,720	11,307
Depreciation and amortisation cost		1,606	1,442
Other adjustments		12,114	9,865
Net increase/(decrease) in operating assets		45,762	90,128
Financial assets held-for-trading		23,291	36,879
Non-trading financial assets mandatorily at fair value through profit or loss		120	226
Financial assets at fair value through profit or loss		647	(5,133)
Financial assets at fair value through other comprehensive income		(1,819)	(15,752)
Financial assets at amortised cost		26,151	65,608
Other operating assets		(2,628)	8,300
Net increase/(decrease) in operating liabilities		15,842	83,182
Financial liabilities held-for-trading		16,830	29,376
Financial liabilities designated at fair value through profit or loss (*)	[1]	(4,202)	11,212
Financial liabilities at amortised cost		4,132	41,445
Other operating liabilities (*)	[1]	(918)	1,149
Income tax recovered/(paid)		(1,504)	(2,516)
CASH FLOWS FROM INVESTING ACTIVITIES		(2,498)	(1,652)
Payments		6,832	6,016
Tangible assets		4,705	4,387
Intangible assets		954	676
Investments		25	109
Subsidiaries and other business units		1,148	844
Non-current assets held for sale and associated liabilities		0	0
Other payments related to investing activities		0	0
Proceeds		4,334	4,364
Tangible assets		2,737	2,961
Intangible assets		0	0
Investments		374	138
Subsidiaries and other business units		838	729
Non-current assets held for sale and associated liabilities		385	536
Other proceeds related to investing activities		0	0
CASH FLOWS FROM FINANCING ACTIVITIES		(2,358)	(7,123)
Payments		4,623	7,604
Dividends		963	869
Subordinated liabilities		748	1,693
Redemption of own equity instruments		0	0
Acquisition of own equity instruments		1,723	1,173
Other payments related to financing activities		1,189	3,869
Proceeds		2,265	481
Subordinated liabilities		1,654	113
Issuance of own equity instruments		0	0
Disposal of own equity instruments		467	360
Other proceeds related to financing activities		144	8
EFFECT OF FOREIGN EXCHANGE RATE DIFFERENCES		1,224	1,976
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS		(15,527)	587
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		223,073	210,689
CASH AND CASH EQUIVALENTS AT END OF PERIOD		207,546	211,276
COMPONENTS OF CASH AND CASH EQUIVALENTS AT END OF PERIOD
Cash		8,195	8,568
Cash equivalents at central banks		186,134	191,065
Other financial assets		13,217	11,643
Less: Bank overdrafts refundable on demand
TOTAL CASH AND CASH EQUIVALENTS AT END OF PERIOD		207,546	211,276
In which: restricted cash		€ 0	€ 0
[1]See impact of IFRS 17 as at 31 of December 2022 (see Note 1.b).

Introduction, basis of presenta

Introduction, basis of presentation of the interim condensed consolidated financial statements and other information	6 Months Ended
	Jun. 30, 2023
Disclosure of reclassifications or changes in presentation [abstract]
Introduction, basis of presentation of the interim condensed consolidated financial statements and other information	Introduction, basis of presentation of the interim condensed consolidated financial statements and other information a) Introduction Banco Santander, S.A. ('the parent' or 'Banco Santander') is a private-law entity subject to the rules and regulations applicable to banks operating in Spain. The Bylaws and other public information of the Bank can be consulted at its registered office at Paseo de Pereda 9 -12, Santander. In addition to the operations carried on directly by it, Banco Santander is the head of a group of subsidiaries that engage in various business activities and which compose, together with it, Grupo Santander ('Santander' or 'The Group'). Grupo Santander's interim condensed consolidated financial statements ('interim financial statements') for the first six months ended 30 June 2023 were authorised and approved by Grupo Santander's directors at the board of directors meeting held on 25 July 2023. Grupo Santander's consolidated annual accounts for year 2022 were approved by shareholders at Banco Santander annual general meeting on 31 March 2023. b) Basis of presentation of the interim financial statements Under Regulation (EC) n.º 1606/2002 of the European Parliament and of the Council of 19 July 2002 all companies governed by the law of an EU Member State and whose securities are admitted to trading on a regulated market of any Member State must prepare their consolidated financial statements for the years beginning on or after 1 January, 2005 in conformity with the International Financial Reporting Standards ('IFRS') previously adopted by the European Union ('EU-IFRS'). In order to adapt the accounting system of Spanish credit institutions with the principles and criteria established by the IFRS adopted by the European Union ('EU-IFRS'), the Bank of Spain published circular 4/2017, dated 27 November 2017, and subsequent changes, on Public and Confidential Financial Reporting Standards and Financial Statement Formats. The consolidated annual accounts for 2022 were authorised at the board of directors meeting on 27 February 2023 in compliance with International Financial Reporting Standards as adopted by the European Union, taking into account Bank of Spain Circular 4/2017, and subsequent modifications, using the basis of consolidation, accounting policies and measurement bases described in Note 2 to the aforementioned consolidated annual accounts and, accordingly, they presented fairly Grupo Santander’s consolidated equity and consolidated financial position at 31 December 2022 and the consolidated results of its operations, and the consolidated cash flows in 2022. The aforementioned consolidated annual accounts, which are included in Grupo Santander’s Form 20-F filed with the U.S. Securities and Exchange Commission on 1 March 2023, and these interim financial statements are also in compliance with International Financial Reporting Standards as issued by the International Accounting Standards Board ('IFRS-IASB', and together with EU-IFRS, 'IFRS'). These interim financial statements were prepared and are presented in accordance with International Accounting Standard (IAS 34), Interim Financial Reporting, for the preparation of interim financial statements in accordance with the provisions of article 12 of Royal Decree 1362/2007 taking into account the requirements of Circular 3/2018, of June 28, of the Securities and Exchange Commission (CNMV). These interim financial statements will be included in the Half-Yearly Financial Information corresponding to the first half of 2023 that the Group presents in accordance with the aforementioned Circular 3/2018. In accordance with IAS 34, the interim financial statements are intended only to provide an update on the content of the latest consolidated annual accounts authorised for issue, focusing on new activities, events and circumstances occurring during the first six months, and does not duplicate information previously reported in the latest consolidated annual accounts. Consequently, these interim financial statements do not include all the information that would be required for a complete set of consolidated annual accounts prepared in accordance with IFRS and, accordingly, for a proper comprehension of the information included in these interim financial statements, they should be read together with Grupo Santander’s consolidated annual accounts for the year ended 31 December 2022. Grupo Santander policies include presenting the interim financial statements for its use in the different markets using the Euro as its presentation currency. The amounts held in other currencies and the balances of entities whose functional currency is not the Euro, have been translated to the presentation currency in accordance with the criteria indicated in Note 2.a to the consolidated annual accounts for 2022. As indicated in that note, for practical reasons, the balance sheet amount has been converted to the closing exchange rate, the equity to the historical type, and the income and expenses have been converted by applying the average exchange rate of the period; the application of such exchange rate or that corresponding to the date of each transaction does not lead to significant differences in the interim financial statements of Grupo Santander. The accounting policies and methods used in preparing these interim financial statements are the same as those applied in the consolidated annual accounts for 2022 taking into account the standards and interpretations with effective application date during the first six months of 2023, which are detailed below: – IFRS 17 Insurance Contracts and amendments to IFRS 17: new general accounting standard for insurance contracts, which includes the recognition, measurement, presentation and disclosure of information. Insurance contracts combine financial and service provision features that, in many cases, generate variable long- term cash flows. To properly reflect these characteristics, IFRS 17 combines the measurement of future cash flows with the recording of the contract result during the period in which the service is provided, presents separately the financial results from the results for the provision of the service and allows entities, through the choice of an accounting policy option, to recognize the financial results in the income statement or in other comprehensive income. Applicable retrospectively from 1 January 2023. The Group has carried out a project to implement IFRS 17 with all affected Group entities and has drawn up an accounting policy that establishes the accounting criteria for recording insurance contracts. Grupo Santander concluded the analysis of the effects of this new standard without having identified material equity impacts in its interim financial statements due to the application of said standard, except for a reclassification of the balance sheet to the heading 'Liabilities covered by insurance or reinsurance contracts', registered at 1 January 2023, of a portfolio of products for an amount of approximately EUR 16 billion, derived from the different treatment that this new standard establishes for the components of an insurance contract. – The amendments to IAS 1 Presentation of Financial Statements require companies to disclose material information about their accounting policies rather than their significant accounting policies. Applicable from 1 January 2023. – The amendments to IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors clarifies how to distinguish changes in accounting policies, which are generally applied retrospectively, from changes in accounting estimates, which are generally applied prospectively. Applicable from 1 January 2023. – The amendments to IAS 12 Income Taxes require companies to recognise deferred tax on transactions that, on initial recognition, give rise to equal amounts of taxable and deductible temporary differences. In addition, entities should recognise deferred tax assets (to the extent that it is probable that they can be utilised) and deferred tax liabilities at the beginning of the earliest comparative period for all deductible and taxable temporary differences associated with: • Right-of-use assets and lease liabilities. • Decommissioning, restoration and similar liabilities, and the corresponding amounts recognised as part of the cost of the related assets. The cumulative effect of recognising these adjustments is recognised in retained earnings, or another component of equity, as appropriate. Applicable from 1 January 2023. By the time of the preparation of these interim financial statements, there is an amendment to IAS 12 that was approved by the IASB on 23 May 2023 with an effective date of 1 January 2023, and that is pending adoption by the European Union for the current exercise. – The amendments to IAS 12 Income Taxes applies to income taxes arising from tax law enacted or substantively enacted to implement the Pillar Two model rules published by the Organisation for Economic Co-operation and Development (OECD), including tax law that implements qualified domestic minimum top-up taxes described in those rules. The amendment includes the mandatory and temporary exception to the recognition and breakdown of deferred tax assets and liabilities derived from said Pillar Two model rules (applicable from the date of publication of the amendment) and establishes additional information requirements, differentiating between whether said tax law has entered into force (applicable from the date of publication of the amendment), or said tax law is enacted or substantially enacted, in which case the information requirements will be necessary for the annual periods beginning on or after 1 January 2023 (without any information requirement in the intermediate periods). Banco Santander has not applied the aforementioned exception since there are no tax laws for the implementation of the model rules of Pillar Two in force in the financial year 2023 for the geographies in which the Group operates. The aforementioned amendments to accounting standards have not had a significant effect on Grupo Santander’s financial statements, except for what was disclosed before. All accounting policies and measurement bases with a material effect on the interim financial statements for 30 June 2023 were applied in their preparation. c) Use of critical estimates The consolidated results and the determination of the consolidated equity are sensitive to the accounting principles and policies, valuation criteria and estimates used by the directors of Banco Santander in preparing the interim financial statements. The main accounting principles, policies, and valuation criteria are indicated in Note 2 of the consolidated annual accounts of the year 2022, except for those indicated in these interim financial statements due to the rules that have come into effect during the first six months of the year 2023. The interim financial statements contain estimates made by the senior management of Banco Santander and of the consolidated entities in order to quantify certain of the assets, liabilities, income, expenses and obligations reported in the consolidated entities. These estimates, which were made on the basis of the best information available, relate mainly to the following: 1. The income tax expense, which is recognised in interim periods based on the best estimate of the weighted average tax rate expected by Grupo Santander for the full financial year; 2. The impairment losses on certain assets – financial assets at fair value through other comprehensive income, financial assets at amortised cost, non-current assets held for sale, investments in subsidiaries, joint ventures and associates, tangible assets and intangible assets; 3. The assumptions used in the calculation of the post-employment benefit liabilities and commitments and other obligations; 4. The useful life of the tangible and intangible assets; 5. The measurement of goodwill impairment arising on consolidation; 6. The calculation of provisions and the consideration of contingent liabilities; 7. The fair value of certain unquoted assets and liabilities; 8. The recoverability of deferred tax assets; and 9. The fair value of the identifiable assets acquired and the liabilities assumed in business combinations in accordance with IFRS 3. To update the previous estimates, the Group's management has taken into account the current macroeconomic scenario and the situation of the war in Ukraine, as well as the challenges derived from the inflationary scenario, the recent turbulence in the world banking sector, mainly due to the bankruptcy of some regional banks in the United States, a specific case of a merger in Europe, which has contributed to generate greater uncertainty and volatility in the markets. The Group's management has evaluated in particular the uncertainties caused by the current environment in relation to credit, liquidity and market risks, taking into account the best available information, to estimate the impact on the credit portfolio's impairment provision, and in the debt instruments' interest rates and valuation. During the first six months ended 30 June 2023, there have been no additional significant changes in the estimates made at the end of 2022, other than those indicated in these interim financial statements. d) Contingent assets and liabilities Note 2.o to Grupo Santander's consolidated annual accounts for the year ended 31 December 2022 includes information on the contingent assets and liabilities at that date. There were no significant changes in Grupo Santander's contingent assets and liabilities from 31 December 2022 to the date of formal preparation of these interim financial statements. e) Comparative information The comparative information in the balance sheet as at 31 December 2022 has been restated due to retrospective application of IFRS 17 (see Note 1.b). In order to interpret the changes in the balances with respect to 31 December 2022, it is necessary to take into consideration the exchange rate effect arising from the volume of foreign currency balances held by the Group in view of its geographic diversity (Note 50.b to the consolidated annual accounts for the year ended 31 December 2022) and the impact of the appreciation/depreciation of the various currencies against the euro in the first six months of 2023: Mexican peso (11.15%), US dollar (-2.16%), Brazilian real (7.51%), Pound sterling (3.35%), Chilean peso (4.02%) and Polish zloty (5.60%); as well as the evolution of the average exchange rates between comparable periods: New Mexican peso (12.84%), US dollar (1.11%), Brazilian real (0.89%), Pound sterling (-3.86%), Chilean peso (3.65%) and Polish zloty (0.25%). f) Seasonality of the Grupo Santander’s transactions The business activities carried on by Grupo Santander entities, and their transactions are not cyclical or seasonal in nature. Therefore, no specific disclosures are included in these explanatory notes to the interim financial statements for the first six months ended 30 June 2023. g) Materiality In determining the note disclosures to be made on the various items in the interim financial statements or other matters, Grupo Santander, in accordance with IAS 34, took into account their materiality in relation to the interim financial statements for the first six months ended 30 June 2023. h) Other information On 28 December 2022, the law establishing a temporary levy on credit institutions and financial credit establishments was published in Spain. On 1 January 2023, an amount of 224 million euros was recorded under the heading "Other operating expenses" in the profit and loss account in accordance with IFRIC 21 due to this new tax. i) Events after the reporting period From July 1, 2023 and up to the date of formulation of these interim financial statements corresponding to the first six months of 2023, there have been no relevant events other than those indicated in the interim financial statements.

Grupo Santander

Grupo Santander	6 Months Ended
	Jun. 30, 2023
Disclosure of detailed information about business combination [abstract]
Grupo Santander	Grupo Santander Appendices I, II and III to the consolidated annual accounts for the year ended 31 December 2022 provide relevant information on Grupo Santander companies at that date and on the companies accounted for under the equity method. Also, Note 3 to the aforementioned consolidated annual accounts includes a description of the most significant acquisitions and disposals of companies performed by Grupo Santander in 2022, 2021 and 2020. The most significant transactions carried out during the first six months of 2023 or pending execution at 30 June 2023 are described below: Tender offer for shares of Banco Santander México, S.A., Institución de Banca Múltiple, Grupo Financiero Santander México On 21 October 2022, Banco Santander, S.A. ('Banco Santander'), announced that it intended to make concurrent cash tender offers to acquire all of the shares of Banco Santander México, S.A., Institución de Banca Múltiple, Grupo Financiero Santander México ('Santander México') in Mexico (Shares) and the United States (American Depositary Shares ('ADS')), which were not owned by Grupo Santander, which amounted to approximately 3.76% of Santander México's share capital. The offers were launched on 7 February 2023 and were originally scheduled to close on 8 March 2023. On 1 March 2023, Banco Santander announced its decision to extend the expiration date of the offers so that they could be concluded on 10 April 2023. Finally, after the offers' closing, 3.6% of the capital has accepted the offer, which raised the Group's stake in Santander México from 96.2% to 99.8%. Shareholders who participated in the offerings received 24.52 Mexican pesos (approximately 1.20 euro) per Share and US$ 6.6876 in cash for each ADS (i.e., the equivalent in United States dollars of 122.6 Mexican pesos in cash for each ADS at the dollar/Mexican peso exchange rate on the expiration date of April 10, 2023), which corresponded to the book value of the Santander México share according to the quarterly report of Santander México corresponding to the fourth quarter of the year 2022 in accordance with applicable legislation, with a total disbursement by Banco Santander of approximately EUR 300 million. The operation has led to an increase of EUR 13 million in Reserves and a decrease of EUR 313 million in minority interests. Once the offers were concluded and settled, Banco Santander proceeded to: (i) withdraw the ADSs from the listing on the New York Stock Exchange (“NYSE”) and the Shares from the registry before the Securities and Exchange Commission ('SEC') in the United States and; (ii) cancel the registration of the Shares in the National Securities Registry of the National Banking and Securities Commission ('CNBV'') and withdraw the listing of the Shares in the Mexican Stock Exchange, S.A.B. de C.V. ('BMV'). Said cancellation was approved by the extraordinary general shareholders' meeting of Santander México held on 30 November 2022, with the favourable vote of the holders of the shares that represent more than 95% of the shares of Santander México, as required by the Mexican Securities Market Law. Pursuant to Mexican law, on 12 May 2023, Banco Santander and Santander México have established a trust (the “Repurchase Trust”), to which the holders of the Shares that remain outstanding after the conclusion of the offers, to sell said Shares to the repurchase trust, at the same cash price that would have been paid to them in the Mexican offer with respect to the same.

Shareholder remuneration system

Shareholder remuneration system and earnings per share	6 Months Ended
	Jun. 30, 2023
Earnings per share [abstract]
Shareholder remuneration system and earnings per share	Shareholder remuneration system and earnings per share a) Shareholder remuneration system The cash remuneration paid by Banco Santander to its shareholders in the first six months of 2023 and 2022 was as follows: 30-06-2023 30-06-2022 % of par Euros per Amount % of par Euros per Amount Ordinary shares 11.90 % 0.0595 963 10.30 % 0.0515 869 Other shares (without vote, redeemable, etc.) — — — — — — Total remuneration paid 11.90 % 0.0595 963 10.30 % 0.0515 869 Dividend paid out of profit 11.90 % 0.0595 963 10.30 % 0.0515 869 Dividend paid with a charge to reserves or share premium — — — — — — Dividend in kind — — — — — — Flexible payment — — — — — — The general meeting of shareholders approved on 31 March 2023 the payment of a complementary dividend in cash charged to the results of the financial year 2022, agreed at the board of directors on 27 February 2023, of EUR 5.95 cents per share that was effective as of 2 May 2023. Likewise, the general meeting of shareholders approved the implementation of a share repurchase program agreed by this board of directors for a maximum amount of EUR 921 million, which began on 1 March 2023 until 12 May 2023. At the board of directors held on 24 February 2022, it was agreed to pay a dividend of EUR 5.15 cents in cash per share corresponding to the year 2021, which became effective on 2 May 2022. It also approved the implementation of a share repurchase program charged to the results of the 2021 financial year for a maximum amount of 865 million, completed in May 2022. b) Earnings per share from continuing and discontinued operations i. Basic earnings per share Basic earnings per share for the period are calculated by dividing the net profit attributable to Grupo Santander for the first six months adjusted by the after-tax amount relating to the remuneration of contingently convertible preference shares recognised in equity by the weighted average number of ordinary shares outstanding during the period, excluding the average number of treasury shares held in the period. Accordingly: 30-06-2023 30-06-2022 Profit attributable to the Parent (EUR million) 5,241 4,894 Remuneration of contingently convertible preferred securities (CCPS) (EUR million) (229) (292) 5,012 4,602 Of which: Profit or Loss from discontinued operations (non controlling interest net) (EUR million) — — Profit or Loss from continuing operations (CCPS net) (EUR million) 5,012 4,602 Weighted average number of shares outstanding 16,279,041,269 16,947,764,566 Basic earnings per share (euros) 0.31 0.27 Of which: from discontinued operations (euros) — — from continuing operations (euros) 0.31 0.27 ii. Diluted earnings per share Diluted earnings per share for the period are calculated by dividing the net profit attributable to Grupo Santander for the first six months adjusted by the after-tax amount relating to the remuneration of contingently convertible preference shares recognised in equity and of perpetual liabilities contingently amortisable in their case by the weighted average number of ordinary shares outstanding during the period, excluding the average number of treasury shares and adjusted for all the dilutive effects inherent to potential ordinary shares (share options, warrants and convertible debt instruments). Accordingly, diluted earnings per share were determined as follows: 30-06-2023 30-06-2022 Profit attributable to the Parent (EUR million) 5,241 4,894 Remuneration of contingently convertible preferred securities (CCPS) (EUR million) (229) (292) 5,012 4,602 Of which: Profit or Loss from discontinued operations (non controlling interest net) (EUR million) — — Profit or Loss from continuing operations (CCPS net) (EUR million) 5,012 4,602 Weighted average number of shares outstanding 16,279,041,269 16,947,764,566 Dilutive effect of options/receipt of shares 67,704,709 48,431,475 Adjusted number of shares 16,346,745,978 16,996,196,041 Diluted earnings per share (euros) 0.31 0.27 Of which: from discontinued operations (euros) — — from continuing operations (euros) 0.31 0.27

Remuneration and other benefits

Remuneration and other benefits paid to Banco Santander’s directors and senior managers	6 Months Ended
	Jun. 30, 2023
Remuneration And Other Benefits [Abstract]
Remuneration and other benefits paid to Banco Santander’s directors and senior managers	Remuneration and other benefits paid to Banco Santander’s directors and senior managers Note 5 to Grupo Santander’s consolidated annual accounts for the year ended 31 December 2022 details the remuneration and other benefits to members of Banco Santander’s Board of Directors and senior management in 2022. Following is a summary of the most significant data on the remunerations and benefits for the first six months ended 30 June 2023 and 2022: Remuneration of members of the board of directors (1) EUR thousand 30-06-2023 30-06-2022 Members of the board of directors: (2) Remuneration concept Fixed salary remuneration of executive directors 3,136 2,859 Variable salary remuneration of executive directors — — Directors fees 628 525 Bylaw-stipulated emoluments (annual emolument) 2,113 1,890 Other 1,407 1,317 Sub-total 7,284 6,591 Transactions with shares and/or other financial instruments — — 7,284 6,591 (1) The Notes to the consolidated annual accounts for 2023 will contain detailed and complete information on the remuneration paid to all the directors, including executive directors. (2) Mr. Jose Antonio Álvarez stepped down as Vice chair and CEO Executive Director on 31 December 2022. Designated as Vice chair Non - executive Director 1 January 2023. Mr. Héctor Grisi was designated member of the board on 1 January 2023. Mr. Germán de la Fuente was designated member of the board on 1 April 2022. Mr. Glenn Hutchings was designated member of the board on 20 December 2022. Mr. Álvaro Cardoso de Souza stepped down as member of the board on 1 April 2022. Mr. Ramón Martín Chávez Márquez stepped down as member of the board on 1 July 2022. Mr. Sergio Agapito Lires Rial stepped down as member of the board on 31 December 2022. Other benefits of members of the board of directors EUR thousand 30-06-2023 30-06-2022 Members of the board of directors Other benefits Advances — — Loans granted 144 133 Pension funds and plans: Endowments and/or contributions (1) 1,055 946 Pension funds and plans: Accumulated rights (2) 66,792 64,895 Life insurance premiums 563 769 Guarantees provided for directors — — (1) These correspond to the endowments and/or contributions made during the first six months of 2023 and 2022 in respect of retirement pensions, widowhood, orphanhood and permanent disability. (2) Corresponds to the rights accru ed by the directors in matters of pensions. Additionally, former members of the board had at 30 June 2023 and 30 June 2022 rights accrued for this concept for EUR 46,275 thousand and EUR 48,388 thousand, respectively. Remuneration of senior management (1)(2) The table below includes the corresponding amounts related to remunerations of senior management at 30 June 2023 and 2022, excluding the executive directors: EUR thousand 30-06-2023 30-06-2022 Senior management (1) Total remuneration of senior management (2) 12,761 13,978 (1) Remunerations received during the first six months by members of the senior management who ceased in their functions by 30 June 2023, amounted to EUR 511 thousand. During the first six months of 2022, no member of senior management terminated their duties. (2) The number of members of Banco Santander's senior management, excluding executive director s, is 14 a s at 30 June 2023 ( 15 persons at 30 June 2022 ). The variable annual remuneration (or bonuses) received for fiscal year 2022, both for directors and the rest of senior management, were included in the information on remuneration included in the annual report for that year. Similarly, the variable remuneration attributable to the 2023 results, which will be submitted for approval by the Board of Directors at the appropriate time, will be included in the financial statements for the current year. Funds and pension plans of senior management EUR thousand 30-06-2023 30-06-2022 Senior management (1) Pension funds: Endowments and / or contributions (2) 2,550 2,808 Pension funds: Accumulated rights (3) 55,451 56,222 (1) Contributions made during the first six months to members of the senior management who ceased in their functions by 30 June 2023, amounted to EUR 108 thousand. During the first six months of 2022, no member of senior management terminated their duties (2) Corresponds to the allocations and/or contributions made during the first six months of 2023 and 2022 as retirement pensions. (3) Corresponds to the rights accrued by members of senior man agement in the area of pensions. In addition, former members of senior management had at 30 June 2023 and 30 June 2022 rights accumulated for this same concept for EUR 90,401 thou sand and EUR 113,060 thousand, respectively.

Financial assets

Financial assets	6 Months Ended
	Jun. 30, 2023
Disclosure of financial assets [abstract]
Financial assets	Financial assets a) Breakdown The detail, by nature and category for measurement purposes, of Grupo Santander's financial assets, other than the balances relating to Cash, cash balances at central banks and other deposits on demand and Hedging derivatives, at 30 June 2023 and 31 December 2022 is as follows, presented by the nature and categories for valuation purposes: EUR million 30-06-2023 Financial Non-trading Financial Financial Financial Derivatives 67,613 Equity instruments 13,349 4,055 1,729 Debt instruments 55,823 888 3,089 76,010 91,559 Loans and advances 47,049 853 6,556 9,017 1,088,743 Central Banks 12,406 — — — 17,871 Credit institutions 23,592 1 626 303 52,375 Customers 11,051 852 5,930 8,714 1,018,497 Total 183,834 5,796 9,645 86,756 1,180,302 EUR million 31-12-2022 Financial Non-trading Financial Financial Financial Derivatives 67,002 Equity instruments 10,066 3,711 1,941 Debt instruments 41,403 1,134 2,542 75,083 73,554 Loans and advances 37,647 868 6,447 8,215 1,073,490 Central Banks 11,595 — — — 15,375 Credit institutions 16,502 — 673 — 46,518 Customers 9,550 868 5,774 8,215 1,011,597 Total 156,118 5,713 8,989 85,239 1,147,044 Following is the gross exposure of financial assets subject to impairment stages at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Gross amount Gross amount Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Total Financial assets at fair value through other comprehensive income 84,841 160 97 85,098 83,118 184 24 83,326 Debt instruments 76,015 — 6 76,021 75,087 — 6 75,093 Loans and advances 8,826 160 91 9,077 8,031 184 18 8,233 Credit institutions 303 — — 303 — — — — Customers 8,523 160 91 8,774 8,031 184 18 8,233 Financial assets at amortised cost 1,097,848 71,743 33,395 1,202,986 1,070,025 66,588 32,997 1,169,610 Debt instruments 91,254 125 442 91,821 73,297 75 398 73,770 Loans and advances 1,006,594 71,618 32,953 1,111,165 996,728 66,513 32,599 1,095,840 Central Banks 17,871 — — 17,871 15,375 — — 15,375 Credit institutions 52,369 13 — 52,382 46,523 1 — 46,524 Customers 936,354 71,605 32,953 1,040,912 934,830 66,512 32,599 1,033,941 Total 1,182,689 71,903 33,492 1,288,084 1,153,143 66,772 33,021 1,252,936 On 30 June 2023, Grupo Santander has EUR 671 million (EUR 322 million on 31 December 2022) of exposure in impaired assets purchased with impairment, of which EUR 251 million still show signs of impairment, which mainly correspond to the business combinations carried out by Grupo Santander. b) Impairment allowances of financial assets at amortised cost portfolio The following is the movement that has taken place, during the first six months ended 30 June 2023 and 2022, in the balance of provisions that cover losses due to impairment of assets which comprise the heading balance of the financial assets at amortised cost: EUR million 30-06-2023 30-06-2022 Balance as at beginning of period 22,888 23,164 Impairment losses charged to income for the period 6,843 5,255 Of which: Impairment losses charged to income 11,225 9,720 Impairment losses reversed with a credit to income (4,382) (4,465) Perimeter change (37) — Write-off of impaired balances against recorded impairment allowance (6,831) (5,682) Exchange differences and other 492 937 Balance as at end of period 23,355 23,674 Of which, relating to: Impaired assets 14,271 13,707 Other assets 9,084 9,967 Of which: Individually calculated 2,858 2,719 Collectively calculated 20,497 20,955 Following is the movement of the loan loss provision broken down by impairment stage of loans and advances to customers recognised under 'Financial assets at amortised cost' as at 30 June 2023 and 30 June 2022: EUR million 30-06-2023 Stage 1 Stage 2 Stage 3 Total Impairment allowance as at beginning of period 3,611 5,124 13,931 22,666 Transfers between stages (454) 355 3,767 3,668 Variation due to credit risk 605 (377) 2,891 3,119 Write-offs — — (6,801) (6,801) Exchange differences and other 88 97 249 434 Carrying amount at end of period 3,850 5,199 14,037 23,086 EUR million 30-06-2022 Stage 1 Stage 2 Stage 3 Total Impairment allowance as at beginning of period 4,182 5,224 13,546 22,952 Transfers between stages (455) 381 2,618 2,544 Variation due to credit risk 473 (447) 2,695 2,721 Write-offs — — (5,682) (5,682) Exchange differences and other 249 324 332 905 Carrying amount at end of period 4,449 5,482 13,509 23,440 Previously written-off assets recovered during the first six months of 2023 and 2022 amount to EUR 864 million and to EUR 662 million, respectively. In addition, during the first six months of 2023 EUR 264 million were recognized for losses in the income statement due to renegotiation or contractual modifications mainly due to the CHF mortgage portfolio in Poland (EUR 169 million during the first six months of 2022). Considering these amounts, the recorded impairment of financial assets at amortised cost is EUR 6,243 million and EUR 4,762 million during the first six months of 2023 and 2022, respectively. c) Impaired assets of financial assets at amortised cost portfolio The movement during the first six months ended 30 June 2023 and 2022, in the balance of financial assets classified at amortised cost and considered impaired by reason for the credit risk is as follows: EUR million 30-06-2023 30-06-2022 Balance as at beginning of period 33,269 31,848 Net additions 6,480 5,710 Written-off assets (6,831) (5,682) Perimeter Changes (45) — Exchange differences and other 773 850 Balance at end of period 33,646 32,726 This amount, after deducting the related allowances, represents Grupo Santander's best estimate of the discounted value of the flows that are expected to be recovered from the impaired assets. d) Guarantees received Following is the breakdown of the value of the guarantees received to ensure the collection of the financial assets that comprise the heading of financial assets at amortized cost, distinguishing between real guarantees and other guarantees at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Real guarantees value 632,794 627,337 Of which: Impaired 12,028 11,846 Other guarantees value 93,967 96,645 Of which: Impaired 2,227 2,029 Total value of the guarantees received 726,761 723,982 e) Fair value of financial assets not measured at fair value Following is a comparison of the carrying amounts of Grupo Santander’s financial assets measured at other than fair value and their respective fair values at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Carrying amount Fair value Carrying amount Fair value Loans and advances 1,088,743 1,067,336 1,073,490 1,053,703 Debt instruments 91,559 89,085 73,554 70,373 ASSETS 1,180,302 1,156,421 1,147,044 1,124,076 The main valuation methods and inputs used in the estimation of the fair value of the financial assets of the previous table are detailed in Note 50.c of the consolidated annual accounts for the year 2022.

Non-current assets held for sal

Non-current assets held for sale	6 Months Ended
	Jun. 30, 2023
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract]
Non-current assets held for sale	Non-current assets held for sale The detail, by nature, of Grupo Santander’s non-current assets held for sale at 30 June 2023 and 31 December 2022 is as follows presented by nature: EUR million 30-06-2023 31-12-2022 Tangible assets 3,125 3,435 Of which: Foreclosed assets 2,912 3,101 Of which: Property assets in Spain 2,335 2,596 Other tangible assets held for sale 213 334 Other assets 26 18 3,151 3,453 The balance of the provisions at 30 June 2023 is EUR 3,173 million (EUR 3,425 million at 31 December 2022). The charges recorded in the first six months of 2023 and 2022 amounted to EUR 63 million and EUR 100 million, respectively, and the recoveries undergone during those periods amount to EUR 16 million and EUR 33 million, respectively.

Tangible assets

Tangible assets	6 Months Ended
	Jun. 30, 2023
Property, plant and equipment [abstract]
Tangible assets	Tangible assets a) Changes in the period In the first six months of 2023 and 2022, tangible assets (rights of use are not included) were acquired for EUR 4,705 million and EUR 4,387 million, respectively. Likewise, in the first six months of 2023 and 2022 tangible asset items were disposed of with a carrying amount of EUR 2,713 million and EUR 2,965 million, generating a net profit of EUR 24 million (net loss of EUR 4 million in the first semester of 2022). b) Property, plant and equipment purchase commitments At 30 June 2023 and 2022, Grupo Santander did not have any significant commitments to purchase property, plant and equipment items. c) Leasing rights As of 30 June 2023, Grupo Santander has tangible assets under lease for the amount of EUR 2,384 million (EUR 2,413 million at 31 December 2022).

Intangible assets

Intangible assets	6 Months Ended
	Jun. 30, 2023
Intangible assets and goodwill [abstract]
Intangible assets	Intangible assets The detail of Intangible Assets - Goodwill at 30 June 2023 and 31 December 2022, based on the cash-generating units giving rise thereto, is as follows: EUR million 30-06-2023 31-12-2022 Banco Santander (Brazil) 3,756 3,503 SAM Investment Holdings Limited 1,444 1,444 Santander Consumer Germany 1,304 1,304 Santander Bank Polska 1,135 1,075 Santander Portugal 1,040 1,040 Santander US Auto 1,016 1,039 Santander España 998 998 Santander Holding USA (ex. Auto) 824 844 Santander UK 619 599 Banco Santander - Chile 570 548 Grupo Financiero Santander (Mexico) 522 469 Ebury Partners 308 298 Santander Consumer Nordics 199 215 Other entities 391 365 Total Goodwill 14,126 13,741 During the first semester of 2023 there has been an increase in goodwill of EUR 385 million mainly due to exchange differences (see Note 11), which in accordance with current regulations, have been recorded with a credit to the heading Other comprehensive income - Items that can be reclassified in results- Foreign currency translation of equity through the Statement of recognized income and expenses. Note 17 of the consolidated annual accounts for the year ended 31 December 2022 includes detailed information on the procedures followed by Grupo Santander to analyse the potential impairment of the goodwill recognised with the respect to its recoverable amount and to recognise the related impairment losses, where appropriate. In accordance with IAS 36, a Cash Generating Unit (CGU) to which goodwill has been assigned should be subjected to an annual impairment test as long as there are signs of impairment. In accordance with all mentioned before and the analysis made of the information available on the evolution of the different cash-generating units that could reveal the existence of indications of impairment, the directors of the Grupo Santander have concluded that during the first six months of 2023, there were no triggers that required the recording of impairments.

Financial liabilities

Financial liabilities	6 Months Ended
	Jun. 30, 2023
Disclosure of financial liabilities [abstract]
Financial liabilities	Financial liabilities a) Breakdown The following is a breakdown of Grupo Santander's financial liabilities, other than the balances corresponding to the Derivatives - hedge accounting heading, as of 30 June 2023 and 31 December 2022, presented by nature and categories for valuation purposes: EUR million 30-06-2023 31-12-2022 Financial Financial Financial Financial Financial Financial Derivatives 62,259 64,891 Short Positions 22,352 22,515 Deposits 50,277 30,536 1,115,908 27,779 34,841 1,111,887 Central banks 16,216 829 58,644 5,757 1,740 76,952 Credit institutions 14,140 2,410 90,704 9,796 1,958 68,582 Customer 19,921 27,297 966,560 12,226 31,143 966,353 Debt instruments — 5,684 285,869 — 5,427 274,912 Other financial liabilities — — 45,105 — — 37,059 Total 134,888 36,220 1,446,882 115,185 40,268 1,423,858 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b) b) Information on issues, repurchases or redemptions of debt instruments issued The detail of the balance of debt instruments issued according to their nature is: EUR million 30-06-2023 31-12-2022 Bonds and debentures outstanding 217,735 211,597 Subordinated 26,864 25,717 Promissory notes and other securities 46,954 43,025 Total debt instruments issued 291,553 280,339 The detail, at 30 June 2023 and 2022, of the outstanding balance of the debt instruments, excluding promissory notes, which at these dates had been issued by Banco Santander or any other Group entity is disclosed below. Also included is the detail of the changes in this balance in the first six months of 2023 and 2022: EUR million 30-06-2023 Opening Perimeter Issuances or placements Repurchases or Exchange Closing Bonds and debentures outstanding 211,597 (1,467) 34,438 (28,534) 1,701 217,735 Subordinated 25,717 — 1,500 (36) (317) 26,864 Bonds and debentures outstanding and subordinated liabilities issued 237,314 (1,467) 35,938 (28,570) 1,384 244,599 EUR million 30-06-2022 Opening Perimeter Issuances or placements Repurchases or Exchange Closing Bonds and debentures outstanding 194,362 — 33,800 (27,376) 3,837 204,623 Subordinated 25,938 — 113 (853) 635 25,833 Bonds and debentures outstanding and subordinated liabilities issued 220,300 — 33,913 (28,229) 4,472 230,456 At 23 May 2023, Banco Santander, S.A. carried out an issue of subordinated bonds for an amount of EUR 1,500 million at a term of 10 years and 3 months. The issue coupon was fixed at 5.75% per year for the first 5 years and 3 months, with an option to redeem in August 2028, revising the coupon, in the event of non-amortization, even a margin of 285 points more the 5-year Euro Swap rate. At 25 April 2022, Banco Santander, S.A. proceeded to prepay all the Tier 1 Contingently Convertible Preferred Securities with ISIN code XS1602466424 and common code 160246642 in circulation, for a total nominal amount of 750 million euros and which trade on the Irish Stock Market 'Global Exchange Market' (the 'PPCC'). c) Other issues guaranteed by Grupo Santander At 30 June 2023 and 2022, there were no debt instruments issued by associates or non-Group third parties (unrelated) that had been guaranteed by Banco Santander or any other Group entity. d) Fair value of financial liabilities not measured at fair value Following is a comparison between the value by which Grupo Santander’s financial liabilities are recorded that are measured using criteria other than fair value and their corresponding fair value at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Carrying amount Fair value Carrying amount Fair value Deposits 1,115,908 1,114,308 1,111,887 1,108,918 Debt instruments 285,869 276,186 274,912 263,191 Liabilities 1,401,777 1,390,494 1,386,799 1,372,109 Additionally, other financial liabilities are accounted for EUR 45,105 million and EUR 37,059 million as of 30 June 2023 and 31 December 2022, respectively.

Provisions

Provisions	6 Months Ended
	Jun. 30, 2023
Provisions [abstract]
Provisions	Provisions a) Provisions for Pensions and other post-retirements obligations and Other long term employee benefits The variation experienced by the balance of the Pensions and other post-retirements obligations and other long-term employee benefits from 31 December 2022 to 30 June 2023, is mainly due to benefit payments and premiums or contributions (see Note 11.d). b) Provisions for taxes and other legal contingencies and Other provisions Set forth below is the detail, by type of provision, of the balances at 30 June 2023 and at 31 December 2022 of Provisions for taxes and other legal contingencies and Other provisions. The types of provision were determined by grouping together items of a similar nature: EUR million 30-06-2023 31-12-2022 Provisions for taxes 741 679 Provisions for employment-related proceedings (Brazil) 475 301 Provisions for other legal proceedings 1,342 1,094 Provision for customer remediation 385 349 Provision for restructuring 659 641 Other 888 1,009 4,490 4,073 Relevant information is set forth below in relation to each type of provision shown in the preceding table: The provisions for taxes include provisions for tax-related proceedings. The provisions for employment-related proceedings (Brazil) relate to claims filed by trade unions, associations, the prosecutor’s office and ex-employees claiming employment rights to which, in their view, they are entitled, particularly the payment of overtime and other employment rights, including litigation concerning retirement benefits. The number and nature of these proceedings, which are common for banks in Brazil, justify the classification of these provisions in a separate category or as a separate type from the rest. The Group calculates the provisions associated with these claims in accordance with past experience of payments made in relation to claims for similar items. When claims do not fall within these categories, a case-by-case assessment is performed and the amount of the provision is calculated in accordance with the status of each proceeding and the risk assessment carried out by the legal advisers. The provisions for other legal proceedings include provisions for court, arbitration or administrative proceedings (other than those included in other categories or types of provisions disclosed separately) brought against Grupo Santander companies. The provisions for customer remediation include mainly the estimated cost of payments to remedy errors relating to the sale of certain products in the UK, as well as the estimated amount related to the floor clauses of Banco Popular Español, S.A.U. To calculate the provision for customer remediation, the best estimate of the provision made by management is used, which is based on the estimated number of claims to be received and, of these, the number that will be accepted, as well as the estimated average payment per case. The provisions for restructuring include only the costs arising from restructuring processes carried out by the various Group companies. Lastly, the Other heading contains very atomized and individually insignificant provisions, such as the provisions to cover the operational risk of the different offices of the Group. Qualitative information on the main litigation is provided in Note 10.c. The Group's general policy is to record provisions for tax and legal proceedings in which the Group assesses the chances of loss to be probable and the Group does not record provisions when the chances of loss are possible or remote. Grupo Santander determines the amounts to be provided for as its best estimate of the expenditure required to settle the corresponding claim based, among other factors, on a case-by-case analysis of the facts and the legal opinion of internal and external counsel or by considering the historical average amount of the loss incurred in claims of the same nature. The definitive date of the outflow of resources embodying economic benefits for the Group depends on each obligation. In certain cases, the obligations do not have a fixed settlement term and, in others, they depend on legal proceedings in progress. The changes in provisions arising from civil contingencies and legal nature are disclosed in this note. The main changes in provisions in the first six months of 2023 are as follows: With respect to provisions for labour and other legal proceedings, in Brazil, provisions of EUR 257 million and EUR 115 million were recorded, making payments of EUR 116 million and EUR 87 million, respectively. With respect to provisions for customer compensation, and based on the best information available, the gross amount of mortgage leans denominated and indexed to foreign currencies in Poland has been adjusted, in accordance with IFRS 9, by the new estimated cash flows, as described in Note 10 c. c) Litigation and other matters i. Tax-related litigation At 30 June 2023 the main tax-related proceedings concerning the Group were as follows: • Legal actions filed by Banco Santander (Brasil) S.A. and other Group entities to avoid the application of Law 9.718/98, which modifies the basis to calculate Programa de Integraçao Social (PIS) and Contribuição para Financiamento da Seguridade Social (COFINS), extending it to all the entities income, and not only to the income from the provision of services. In relation of Banco Santander (Brasil) S.A. process, in 2015 the Federal Supreme Court (FSC) admitted the extraordinary appeal filed by the Federal Union regarding PIS, and dismissed the extraordinary appeal lodged by the Brazilian Public Prosecutor's Office regarding COFINS contribution, confirming the decision of Federal Regional Court favourable to Banco Santander (Brasil) S.A. of August 2007. The Federal Supreme Court also admitted the appeals related to the other Group entities both for PIS and COFINS. On June 13, 2023, the Federal Supreme Court ruled unfavorably two cases through General Repercussion (Theme 372), including Banco Santander (Brasil), S.A. case. The Bank will file a new appeal, considering the possible loss as a contingent liability. The other Group entities have recognized a provision for the estimated loss regarding both PIS and Cofins. • Banco Santander (Brasil) S.A. and other Group companies in Brazil have appealed against the assessments issued by the Brazilian tax authorities questioning the deduction of loan losses in their income tax returns (Imposto sobre a Renda das Pessoas Jurídicas - IRPJ - and Contribuçao Social sobre o Lucro Liquido -CSLL-) in relation to different administrative processes of various years on the ground that the requirements under the applicable legislation were not met. The appeals are pending decision in the administrative Court, the Conselho Adminisitrativo de Recursos Fiscais (CARF). No provision was recognised in connection with the amount considered to be a contingent liability. • Banco Santander (Brasil) S.A. and other Group companies in Brazil are involved in administrative and legal proceedings against several municipalities that demand payment of the Service Tax on certain items of income from transactions not classified as provisions of services. There are several cases in different judicial instances. A provision was recognised in connection with the amount of the estimated loss. • Banco Santander (Brasil) S.A. and other Group companies in Brazil are involved in administrative and legal proceedings against the tax authorities in connection with the taxation for social security purposes of certain items which are not considered to be employee remuneration. There are several cases in different judicial instances. A provision was recognised in connection with the amount of the estimated loss. • In May 2003 the Brazilian tax authorities issued separate infringement notices against Santander Distribuidora de Títulos e Valores Mobiliarios, Ltda. (DTVM, actually Santander Brasil Tecnología S.A.) and Banco Santander (Brasil) S.A. in relation to the Provisional Tax on Financial Movements (Contribuição Provisória sobre Movimentação Financeira) of the years 2000 to 2002. The administrative discussion ended unfavourably for both companies, and on July 3, 2015, filed a lawsuit requesting the cancellation of both tax assessments. The lawsuit was judged unfavourably in first instance. Therefore, both plaintiffs appealed to the court of second instance. On December 2020, the appeal was decided unfavourably. Against the judgment, the bank filed a motion for clarification which has not been accepted. Currently it is appealed to higher courts. There is a provision recognized for the estimated loss. • In December 2010 the Brazilian tax authorities issued an infringement notice against Santander Seguros S.A. (Brazil), currently Zurich Santander Brasil Seguros e Previdência S.A., as the successor by merger to ABN AMRO Brasil dois Participações S.A., in relation to income tax (IRPJ and CSLL) for 2005, questioning the tax treatment applied to a sale of shares of Real Seguros, S.A. The administrative discussion ended unfavourably, and the CARF decision has been appealed at the Federal Justice. As the former parent of Santander Seguros S.A. (Brasil), Banco Santander (Brasil) S.A. is liable in the event of any adverse outcome of this proceeding. No provision was recognised in connection with this proceeding as it is considered to be a contingent liability. • In November 2014 the Brazilian tax authorities issued an infringement notice against Banco Santander (Brasil) S.A. in relation to corporate income tax (IRPJ and CSLL) for 2009 questioning the tax-deductibility of the amortisation of the goodwill of Banco ABN AMRO Real S.A. performed prior to the absorption of this bank by Banco Santander (Brasil) S.A., but accepting the amortisation performed after the merger. Actually it is appealed before the Higher Chamber of CARF. No provision was recognised in connection with this proceeding as it was considered to be a contingent liability. • Banco Santander (Brasil) S.A. has also appealed against infringement notices issued by the tax authorities questioning the tax deductibility of the amortisation of the goodwill arising on the acquisition of Banco Comercial e de Investimento Sudameris S.A from years 2007 to 2012. No provision was recognised in connection with this matter as it was considered to be a contingent liability. • Banco Santander (Brasil) S.A. and other companies of the Group in Brazil are undergoing administrative and judicial procedures against Brazilian tax authorities for not admitting tax compensation with credits derived from other tax concepts, not having registered a provision for the amount considered to be a contingent liability. • Banco Santander (Brasil) S.A. is involved in appeals in relation to infringement notices initiated by tax authorities regarding the offsetting of tax losses in the CSLL of year 2009. The appeal is pending decision in CARF. No provision was recognised in connection with this matter as it is considered to be a contingent liability. • Banco Santander (Brasil) S.A. filed a suspensive judicial measure aiming to avoid the withholding income tax (Imposto sobre a Renda Retido na Fonte - IRRF), on payments derived from technology services provided by Group foreign entities. A favorable decision was handed down and an appeal was filed by the tax authority at the Federal Regional Court, where it awaits judgment. No provision was recognized as it is considered to be a contingent liability • Brazilian tax authorities have issued infringement notices against Getnet Adquirência e Serviços para Meios de Pagamento S.A and Banco Santander (Brasil) S.A. as jointly liable in relation to corporate income tax (IRPJ and CSLL) for 2014 to 2018 questioning the tax-deductibility of the amortization of the goodwill from the acquisition of Getnet Tecnologia Proces S.A., considering that the company would not have complied with the legal requirements for such amortization. A defense against the tax assessment notices were submitted, and the appeal is pending decision in CARF. No provision was recognized as it is considered to be a contingent liability. The total amount for the aforementioned Brazil lawsuits that are fully provisioned is EUR 807 million, and for lawsuits that qualify as contingent liabilities is EUR 5,440 million. • Banco Santander appealed before European Courts the Decisions 2011/5/CE of 28 October 2009 (First Decision), and 2011/282/UE of 12 January 2011 (Second Decision) of the European Commission, ruling that the deduction of the financial goodwill regulated pursuant to Article 12.5 of the Corporate Income Tax Law constituted illegal State aid. On October 2021 the Court of Justice definitively confirmed these Decisions. The dismissal of the appeal, that only affects these two decisions, had no impact on results. At the date of approval of these interim financial statements certain other less significant tax-related proceedings are also in progress. ii. Non-tax-related proceeding s At 30 June 2023 the main non-tax-related proceedings concerning the Group were as follows: • Payment Protection Insurance (PPI): The dispute relates to the liability for PPI mis-selling complaints relating to pre-2005 PPI policies that two entities of AXA Group (hereinafter, AXA France) acquired from Genworth Financial International Holdings, Inc. (Genworth) in September 2015. The dispute involves Santander Cards UK Limited (formerly known as GE Capital Bank Limited which was acquired by Banco Santander, S.A. from GE Capital group in 2008) which was the distributor of the policies in dispute and Santander Insurance Services UK Limited (the Santander Entitites). In July 2017, the Santander Entities notified AXA France that they did not accept liability for losses on PPI policies relating to the relevant period. Santander UK plc entered into a Complaints Handling Agreement (CHA) with AXA France pursuant to which it agreed to handle complaints on their behalf, and AXA France agreed to pay redress assessed to be due to relevant policyholders on a without prejudice basis. A standstill agreement was entered into between the Santander Entities and AXA France as a condition of the CHA. In July 2020, Genworth announced that it had agreed to pay AXA SA circa GBP 624 million in respect of PPI mis-selling losses in settlement of the related dispute concerning obligations under the sale and purchase agreement pursuant to which Genworth sold AXA France to AXA SA. The CHA between Santander UK plc and AXA France terminated on 26 December 2020. On 30 December 2020, AXA France provided written notice to the Santander Entities to terminate the standstill agreement. During 2021, AXA France commenced litigation against the Santander Entities seeking recovery of GBP 636 million (EUR 741.3 million) (plus interest) and any further losses relating to pre-2005 PPI. Judgment in respect of the Santander Entities application for AXA France’s claim to be struck out/summarily dismissed, was handed down by the Commercial Court on 12 July 2022. In summary, the High Court of Justice Business and Property Courts of England and Wales - Commercial Court upheld a significant part of the Santander Entities’ strike-out application and required AXA France to re-plead a significant portion of its other pleadings. AXA France updated the amount of losses claimed from GBP 636 million (EUR 741.3 million) to GBP 670 million (EUR 780.9 million) (plus interest) in their Re-Amended Particulars of Claim dated 2 December 2022 (RAPOC). On 31 January 2023, the Santander Entities filed their Defence to the RAPOC and an Additional Claim. In response, AXA France has conceded its claim for charges paid to Santander Entities pursuant to the CHA, reducing the overall value of its claim from GBP 670 million (EUR 780.9 million) to GBP 552 million (EUR 643.4 million) (plus interest) and has agreed to the requested rectification. AXA France filed its Re-Re-Amended Particulars of Claim on 29 June 2023. Overall, there remains significant uncertainty as to how the dispute will be resolved. There are ongoing factual issues to be resolved which may have legal consequences including in relation to liability. These issues create uncertainties which mean that it is difficult to reliably predict the outcome of the matter. These provisions represent the best estimate as of 30 June 2023. In addition, and in relation to PPI more generally the PPI provision includes an amount relating to legal claims challenging the Financial Conduct Authority’s (FCA) industry guidance on the treatment of the Plevin judgment and of recurring non-disclosure assessments. This provision is based on current stock levels, future projected claims, and average redress. There remains a risk that volumes received in future may be higher than forecast. The actual cost of customer compensation could differ from the amount provided. It is not currently practicable to provide an estimate of the risk and amount of any further financial impact. • Motor Finance Broker Commissions: following the FCA Motor Market review in 2021, Santander Consumer UK (plc) has received a number of claims and complaints in respect of its historical commission arrangements. Santander Consumer (UK) plc is monitoring industry developments for potential liabilities for claims related to the use of discretionary commission models prior to the Motor Market review. While it is possible that certain costs will be incurred in relation to existing or future such claims or complaints, it is not considered that a legal or constructive obligation has been established that would require a provision to be recorded at this stage as it is currently not possible to predict their ultimate outcome including the materiality of any financial impacts (if any). • Delforca: dispute arising from equity swaps entered into by Gaesco (now Delforca 2008, S.A.) on shares of Inmobiliaria Colonial, S.A. Banco Santander, S.A. is claiming to Delforca before the Court of Barcelona in charge of the bankruptcy proceedings, a total of EUR 66 million from the liquidation resulting from the early termination of financial transactions due to Delforca's non-payment of the equity swaps. In the same bankruptcy proceedings, Delforca and Mobiliaria Monesa have in turn claimed the Bank to repay EUR 57 million, which the Bank received for the enforcement of the agreed guarantee, as a result of the aforementioned liquidation. On 16 September 2021 the Commercial Court Number 10 of Barcelona has ordered Delforca to pay the Bank EUR 66 million plus EUR 11 million in interest and has dismissed the claims filed by Delforca. This decision has been appealed by Delforca, Mobiliaria Monesa and the bankruptcy administrator. On 1 June 2023, the appeal hearing took place. It is currently pending resolution by the Provincial Court Separately, Mobiliaria Monesa, S.A. (parent of Delforca) filed in 2009 a civil procedure with the Courts of Santander against the Bank claiming damages that have not been specified to date. The procedure is suspended. • Former employees of Banco do Estado de São Paulo S.A., Santander Banespa, Cia. de Arrendamiento Mercantil: claim initiated in 1998 by the association of retired Banespa employees (AFABESP) requesting the payment of a half-yearly bonus contemplated in the by-laws of Banespa in the event that Banespa obtained a profit, and that the distribution of this profit were approved by the Board of Directors. The bonus was not paid in 1994 and 1995 since Banespa had not made a profit during those years. Partial payments were made from 1996 to 2000, as approved by the Board of Directors. The relevant clause was eliminated in 2001. The Tribunal Regional do Trabalho (Regional Labour Court) and the High Employment Court (TST) ordered Santander Brazil, as successor to Banespa, to pay this half-yearly bonus for the period from 1996 to the present. On 20 March 2019, the Supreme Federal Court (STF) rejected the extraordinary appeal filed by Santander Brazil. Santander Bank Brazil filed a rescissory action before the TST to nullify the decisions of the main proceedings and suspend the execution of the judgment, which was deemed inadmissible, therefore its execution was suspended. The rescissory action was dismissed and a motion for clarification was filed, due to the absence of an explicit argument to deny the rescissory action filed by Santander Brazil. After the decision of the motion for clarification, Santander Brazil filed an extraordinary appeal in the rescissory action in February 2021, which was denied in an interlocutory decision in June 2021 by the TST. As Santander Brazil understands there is a conflict between the TST decision and the doctrine set by the STF, Santander Brazil appealed this decision. This appeal is pending. In August 2021, a first instance court ruled that the enforcement of the TST decision shall be carried out individually, at the jurisdiction pertaining to each person. AFABESP appealed this decision. In December 2021, the Regional Labor Court denied the appeal filed by AFABESP. This decision has not been appealed by AFABESP, and therefore it has become firm. Santander Brazil external advisers have classified the risk as probable. The recorded provisions are considered sufficient to cover the risks associated with the legal claims that are being substantiated as of 30 June 2023. • 'Planos Económicos': like the rest of the banking system in Brazil, Santander Brazil has been the target of customer complaints and collective civil suits stemming mainly from legislative changes and its application to bank deposits ('economic plans'). At the end of 2017, an agreement between regulatory entities and the Brazilian Federation of Banks (Febraban) with the purpose of closing the lawsuits was reached and was approved by the Supremo Tribunal Federal. Discussions focused on specifying the amount to be paid to each affected client according to the balance in their notebook at the time of the Plan. Finally, the total value of the payments will depend on the number of adhesions there may be and the number of savers who have demonstrated the existence of the account and its balance on the date the indexes were changed. In November 2018, the STF ordered the suspension of all economic plan proceedings for two years from May 2018. On 29 May 2020, the STF approved the extension of the agreement for 5 additional years starting from 3 June 2020. Condition for this extension was to include in the agreement actions related to the 'Collor I Plan'. On 20 June 2023, the provision recorded for the economic plan proceedings amounts to EUR 238.2 million. • Floor clauses: as a consequence of the acquisition of Banco Popular Español, S.A.U. (Banco Popular), the Group has been exposed to a material number of transactions with floor clauses. The so-called "floor clauses" are those under which the borrower accepts a minimum interest rate to be paid to the lender, regardless of the applicable reference interest rate. Banco Popular included "floor clauses" in certain asset-side transactions with customers. In relation to this type of clauses, and after several rulings made by the Court of Justice of the European Union and the Spanish Supreme Court, and the extrajudicial process established by the Spanish Royal Decree-Law 1/2017, of 20 January, Banco Popular made provisions that were updated in order to cover the effect of the potential return of the excess interest charged for the application of the floor clauses between the contract date of the corresponding mortgage loans and May 2013. On 30 June 2023, after having processed most of the customer requests, the potential residual loss associated with ongoing court proceedings is estimated at EUR 55.5 million, amount which is fully covered by provisions. • Banco Popular´s acquisition: After the declaration of the resolution of Banco Popular, some investors filed claims against the EU’s Single Resolution Board decision, and the FROB's resolution executed in accordance with the aforementioned decision. Likewise, numerous appeals were filed against Banco Santander, S.A. alleging that the information provided by Banco Popular was erroneous and requesting from Banco Santander, S.A. the restitution of the price paid for the acquisition of the investment instruments or, where appropriate, the corresponding compensation. In relation to these appeals, on the one hand, the General Court of the European Union (GCUE) selected 5 appeals from among all those filed before the European courts by various investors against the European institutions and processed them as pilot cases. On 1 June 2022, the GCUE has rendered five judgements in which it has completely dismissed the appeals, (i) supporting the legality of the resolution framework applied to Banco Popular, (ii) confirming the legality of the action of the European institutions in the resolution of Banco Popular and (iii) rejecting, in particular, all the allegations that there were irregularities in the sale process of Banco Popular to Banco Santander, S.A. four of these judgments have been appealed before the Court of Justice of the European Union (CJEU). In all the appeals the rejoinder stage has concluded. On the other hand, in relation to the lawsuits initiated by investors directly against Banco Santander, S.A. derived from the acquisition of Banco Popular, on 2 September 2020, the Provincial Court of La Coruña submitted a preliminary ruling to the CJEU in which it asked for the correct interpretation of the Article 60, section 2 of Directive 2014/59/EU of the European Parliament and of the Council of 15 May, establishing a framework for the restructuring and resolution of credit institutions and investment services companies. Said article establishes that, in the cases of redemption of capital instruments in a bank resolution, no liability will subsist in relation to the amount of the instrument that has been redeemed. On 5 May 2022, the CJEU has rendered its judgement confirming that Directive 2014/59/EU of the European Parliament and of the Council does not allow that, after the total redemption of the shares of the share capital of a credit institution or an investment services company subject to a resolution procedure, the shareholders who have acquired shares within the framework of a public subscription offer issued by said company before the start of such a resolution procedure, exercise against that entity or against its successor, an action for liability for the information contained in the prospectus, under Directive 2003/71/EC of the European Parliament and of the Council, or an action for annulment of the subscription contract for those shares, which, taking into account its retroactive effects, gives rise to the restitution of the equivalent value of said shares, plus the interest accrued from the date of execution of said contract. In respect to this judgement, in December 2022 the Spanish Supreme Court submitted three preliminary rulings before the CJEU in respect of its applicability to subordinated bonds amortized with the resolution and to subordinated obligations and/or preferred shares converted into shares before resolution. Separately, the Central Court of Instruction 4 is currently conducting preliminary proceedings 42/2017, in which, amongst other things, is being investigated the following: (i) the accuracy of the prospectus for the capital increase with subscription rights carried out by Banco Popular in 2016; and (ii) the alleged manipulation of the share price of Banco Popular until the resolution of the bank, in June 2017. During the course of the proceedings, on 30 April 2019, the Spanish National Court, ruled in favour of Banco Santander, S.A. declaring that Banco Santander, S.A. cannot inherit Banco Popular’s potential criminal liability. This ruling was appealed before the Supreme Court, which rejected it. In these proceedings, Banco Santander, S.A. could potentially be subsidiarily liable for the civil consequences. In view of the CJEU ruling of 5 May 2022, the Bank has requested confirmation of the exclusion of its subsidiary civil liability status in this criminal proceeding. On 26 July 2022, the Court has rejected this request stating that it is a matter to be determined at a later procedural time. This decision has been confirmed on appeal by the Chamber of the National Court by sentence of 5 October 2022. The instruction expired on 29 April 2023. Therefore, the Court now must issue the resolution putting an end to the investigation. The estimated cost of any compensation to shareholders and bondholders of Banco Popular recognized in the 2017 accounts amounted to EUR 680 million, of which EUR 535 million were applied to the commercial loyalty program. The CJEU judgement of 5 May represents a very significant reduction in the risk associated with these claims. • German shares investigation: the Cologne Public Prosecution Office is conducting an investigation against the Bank, and other group entities based in UK - Santander UK plc, Santander Financial Services Plc and Cater Allen International Limited, in relation to a particular type of tax dividend linked transactions known as cum-ex transactions. The Group is cooperating with the German authorities. According to the state of the investigations, the result, and the effects for the Group, which may potentially include the imposition of material financial penalties, cannot be anticipated. For this reason, the Bank has not recognized any provisions in relation to the potential imposition of financial penalties. • Banco Santander, S.A. was sued in a legal proceeding in which the plaintiff alleges that the Bank breached his contract as CEO of the institution. In the lawsuit, the claimant mainly requested a declaratory ruling that upholds the existence, validity and effectiveness of such contract and its enforcement together with the payment of certain amounts. If the main request is not granted, the claimant sought a compensation for a total amount of approximately EUR 112 million or, an alternative relief for other minor amounts. Banco Santander, S.A. answered to the legal action stating that the conditions to which the appointment of that position was subject to were not met; that the executive services contract required by law was not concluded; and that in any case, the parties could terminate the contract without any justified cause. On 17 May 2021, the plaintiff reduced his claims for compensation to EUR 61.9 million. On 9 December 2021, the Court upheld the claim and ordered the Bank to compensate the claimant in the amount of EUR 67.8 million. By court order of 13 January 2022, the Court corrected and supplemented its judgment, reducing the total amount to be paid by the Bank to EUR 51.4 million and clarifying the part of this amount (buy out) was to be paid under the terms of the offer letter, i.e., entirely in Banco Santander shares, within the deferral period for this type of remuneration at the plaintiff's former employer and subject to the performance metrics or parameters of the plan in force at the Bank, which was that of 2018. As explained in note 5 of the report of the consolidated annual accounts for the year 2022, the degree of performance of these objectives was 33.3%. The Bank filed an appeal against the judgment before the Madrid Court of Appeal, which was opposed by the plaintiff. At the same time, the plaintiff filed an application for provisional enforcement of the judgment in the first instance court. A court order was issued ordering enforcement of the judgment, and the Bank deposited in the court bank account the full amount provisionally awarded to the claimant, including interest, for an approximate sum of EUR 35.5 million, within the voluntary compliance period. On 6 February 2023, Banco Santander was notified of the judgment of 20 January 2023 by which the Madrid Court of Appeal partially upheld the appeal filed by the Bank. The judgment has reduced the amount to be paid by EUR 8 million, which, to the extent that this amount was already paid in the provisional partial enforcement of the judgement of first instance court, must be returned to the Bank together with other amounts for interest, which the appeal judgement also rejects. The plaintiff deposited circa EUR 9.6 million. This amount was received by the Bank on 11 July 2023. On 11 April 2023, the Bank filed an extraordinary appeal for procedural infringement and an appeal in cassation against the Madrid Court of Appeal’s judgment before Spanish Supreme Court. Existing provisions cover the estimated risk of loss. • Universalpay Entidad de Pago, S.L. (Upay) has fil

Equity

Equity	6 Months Ended
	Jun. 30, 2023
Equity [abstract]
Equity	Equity In the first six month period ended 30 June 2023 and 2022 there were no quantitative or qualitative changes in Grupo Santander's equity other than those indicated in the condensed consolidated statements of changes in total equity. a) Capital Banco Santander's share capital at 30 June 2023 and 31 December 2022 consisted of EUR 8,092 million and 8,397, respectively, represented by 16,184,146,059 and 16,794,401,584 shares of EUR 0.50 of nominal value each, respe ctively, and all of them of a unique class and series. On 21 March 2023, there was a capital reduction amounting to EUR 170 million through the redemption of 340,406,572 shares, corresponding to the share buyback program for the year 2022 ended in January 2023. Likewise, on 30 June 2023, Banco Santander has decreased its capital by an amount of EUR 135 million through the redemption of 269,848,953 shares, corresponding to the share buyback program carried out between March and May 2023. Both operations have not entailed the return of contributions to the shareholders as Banco Santander was the owner of the redeemed shares. b) Share premium Includes the amount paid by the bank's shareholders in capital issues in excess of par value. As a result of the capital reductions described in Note 11.a, during the first half of 2023 the share premium has been reduced by an amount of 1,595 million euros, corresponding to the difference between the purchase value of the shares amortized (1,900 million euros) and the nominal value of said shares (305 million euros). Likewise, in accordance with the applicable legislation, a reserve for amortized capital has been allocated with a charge to the share premium for an equal amount to the nominal value of said amortized shares (305 million euros). c) Breakdown of other comprehensive income - Items not reclassified to profit or loss and Items that may be reclassified to profit or loss EUR million 30-06-2023 31-12-2022 Other comprehensive income accumulated (33,789) (35,628) Items not reclassified to profit or loss (4,956) (4,635) Actuarial gains or losses on defined benefit pension plans (4,036) (3,945) Non-current assets held for sale — — Share in other income and expenses recognised in investments, joint ventures and associates 3 10 Other valuation adjustments — — Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income (859) (672) Inefficacy of fair value hedges of equity instruments measured at fair value with changes — — Changes in the fair value of equity instruments measured at fair value with changes 252 293 Changes in the fair value of equity instruments measured at fair value with changes (252) (293) Changes in the fair value of financial liabilities measured at fair value through profit or loss (64) (28) Items that may be reclassified to profit or loss (28,833) (30,993) Hedge of net investments in foreign operations (effective portion) (8,322) (6,750) Exchange differences (17,580) (20,420) Hedging derivatives (effective portion) (2,118) (2,437) Changes in the fair value of debt instruments measured at fair value with changes in other comprehensive income (563) (1,002) Hedging instruments (items not designated) — — Non-current assets held for sale — — Share in other income and expenses recognised in investments, joint ventures and associates (250) (384) d) Other comprehensive income - Items not reclassified to profit or loss - Actuarial gains or losses on defined benefit pension plans The balance of the heading Other accumulated comprehensive income - Items not reclassified to profit or loss - Actuarial gains or losses on defined benefit pension plans, includes the actuarial gains or losses and the return on the assets assigned to the plan, less administration costs and plan's own taxes, and any change in the effects of the asset limit, excluding amounts included in net interest on net defined benefit liability (asset). Its variation is shown in the consolidated condensed statement of recognized income and expense. During the first six months of 2023, the amount of actuarial losses (net of actuarial gains) has increased by EUR 402 million. The main impacts are: • Increase of EUR 182 million in the cumulative actuarial losses relating to the Group´s businesses in the UK, mainly due to the performance of the asset portfolio, partially offset by the variation in the discount rate used in the obligations (increase from 4.88% to 5.28%). • Increase of 134 million euros in accumulated actuarial losses corresponding to the Group's businesses in Brazil, due to the variation in the discount rate (decrease from 9.44% to 8.71% in the main pension plans, and decrease from 9.46% to 8.73% in the main medical plan), to short-term inflation and the performance of the asset portfolio. • Decrease of EUR 21 million in the cumulative actuarial losses relating to the Group's businesses in Portugal, mainly due to the good performance of the asset portfolio. • Decrease of EUR 13 million in the cumulative actuarial losses relating to the Group´s businesses in Spain, mainly due to the discount rate variation (increase from 3.80% to 4.00%). The other modification in accumulated actuarial profit or losses is an increase of EUR 120 million as a result of the evolution of exchange rates and other movements. e) Other comprehensive income - Items not reclassified to profit or loss – Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income Includes the net amount of unrealised fair value changes in equity instruments at fair value with changes in other comprehensive income. Below is a breakdown of the composition of the balance as of 30 June 2023 and 31 December 2022 under 'Other comprehensive income - Items not reclassified to profit or loss - Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income' depending on the geographical origin of the issuer: EUR million 30-06-2023 31-12-2022 Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Equity instruments Domestic Spain 31 (1,172) (1,141) 251 30 (926) (896) 500 International Rest of Europe 110 (67) 43 271 84 (60) 24 225 United States 18 — 18 24 15 — 15 29 Latin America and rest 309 (88) 221 1,183 244 (59) 185 1,187 468 (1,327) (859) 1,729 373 (1,045) (672) 1,941 Of which: Listed 311 (138) 173 1,191 246 (113) 133 1,200 Unlisted 157 (1,189) (1,032) 538 127 (932) (805) 741 f) Other comprehensive income - Items that may be reclassified to profit or loss – Hedges of net investments in foreign operations (effective portion) and exchange differences Other comprehensive income - Items that may be reclassified to profit or loss - Hedges of net investments in foreign operations (effective portion) includes the net amount of the changes in value of hedging instruments in hedges of net investments in foreign operations, in respect of the portion of these changes considered to be effective hedges. Other comprehensive income - Items that may be reclassified to profit or loss - Exchange differences includes the net amount of exchange differences arising on non-monetary items whose fair value is adjusted against equity and the differences arising on the translation to euros of the balances of the consolidated entities whose functional currency is not the euro. The net variation of both headings recognised during the first six months of 2023 in the interim condensed consolidated statement of recognised income and expenses, reflects the impact of the evolution of the currencies during the year, reflecting mainly the strong appreciation of the Brazilian real, Pound sterling and Mexican peso, and in the negative side the impact of the depreciation of the US dollar (see Note 1.e). Of this variation, a capital gain of EUR 392 million corresponds to the valuation at the closing exchange rate of goodwill for the first six months of 2023 (see Note 8). g) Other comprehensive income – Items that may be reclassified to profit or loss – Changes in the fair value of debt instrument s measured at fair value through other comprehensive income Includes the net amount of unrealised fair value changes in debt instruments at fair value through other comprehensive income. Below is a breakdown of the composition of the balance as of 30 June 2023 and 31 December 2022 under Other comprehensive income - Items that may be reclassified to profit or loss - Changes in the fair value of debt instruments measured at fair value through other comprehensive income depending on the type of instrument and the geographical origin of the issuer: EUR million 30-06-2023 31-12-2022 Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Debt instruments Issued by public Public-sector Spain 110 (1) 109 9,544 26 (1) 25 9,312 Rest of Europe 355 (140) 215 18,607 268 (199) 69 17,593 Latin America and rest of the world 177 (843) (666) 40,351 196 (937) (741) 40,873 Issued by Private-sector Spain 82 (3) 79 6,277 — (24) (24) 5,727 Rest of Europe 12 (56) (44) 5,157 11 (68) (57) 5,203 Latin America and rest of the world 27 (283) (256) 5,091 16 (290) (274) 4,590 763 (1,326) (563) 85,027 517 (1,519) (1,002) 83,298

Segment information (Primary se

Segment information (Primary segment)	6 Months Ended
	Jun. 30, 2023
Disclosure of operating segments [abstract]
Segment information (Primary segment)	Segment information (Primary segment) Grupo Santander has aligned the information in this note with the underlying information used internally for management reporting and with that presented in Grupo Santander's other public documents. Grupo Santander's executive committee has been selected to be its chief operating decision maker. Grupo Santander's operating segments reflect its organizational and managerial structures. The executive committee reviews internal reporting based on these segments to assess performance and allocate resources. The segments are split by geographic area in which profits are earned and type of business. The information is prepared by aggregating the figures for Santander’s various geographic areas and business units, relating it to both the accounting data of the units integrated in each segment and that provided by management information systems. The same general principles as those used in Grupo Santander are applied. Following is the breakdown of revenue that is deemed to be recognised under Dividend income, Commission income, Gain or losses on financial assets and liabilities not measured at fair value through profit or loss, net, Gain or losses on financial assets and liabilities held for trading, net, Gain or losses on non-trading financial assets and liabilities mandatorily at fair value through profit or loss, Gain or losses on financial assets and liabilities measured at fair value through profit or loss, net, Gain or losses from hedge accounting, net, Other operating income and Income from assets under insurance and reinsurance contracts in the accompanying consolidated income statements for the first six months ended 30 June 2023 and 2022. In addition to these operating units, which report by geographic area and businesses, Grupo Santander continues to maintain the area of Corporate Centre, that includes the centralized activities relating to equity stakes in financial companies, financial management of the structural exchange rate position, assumed within the sphere of Grupo Santander's assets and liabilities committee, as well as management of liquidity and of shareholders' equity via issuances. This financial information ('underlying basis') is computed by adjusting reported results for the effects of certain gains and losses (e.g.: capital gains, write-downs, etc.). These gains and losses are items that management and investors ordinarily identify and consider separately to understand better the underlying trends in the business. Following is the reconciliation between the adjusted profit and the statutory profit corresponding to the first six months ended 30 June 2023 and 2022: EUR million Revenue from ordinary activities Profit before taxes Profit Segment 30-06-2023 30-06-2022 30-06-2023 30-06-2022 30-06-2023 30-06-2022 Europe 19,391 13,649 3,888 2,693 2,536 1,839 North America 13,966 8,154 1,739 2,061 1,346 1,578 South America 20,461 17,613 2,376 3,165 1,458 1,946 Digital Consumer Bank 4,761 3,395 928 1,010 521 572 Corporate Centre 1,121 173 (602) (1,014) (620) (1,041) Underlying Profit 59,700 42,984 8,329 7,915 5,241 4,894 Adjustments — — (239) — — — Statutory Profit 59,700 42,984 8,090 7,915 5,241 4,894

Related parties

Related parties	6 Months Ended
	Jun. 30, 2023
Disclosure of transactions between related parties [abstract]
Related parties	Related parties The parties related to Grupo Santander are deemed to include, in addition to its subsidiaries, associates and joint ventures, Banco Santander’s key management personnel (the members of its board of directors and the executive vice presidents, together with their close family members) and the entities over which the key management personnel may exercise significant influence or control. Following is a detail of the transactions performed by Grupo Santander with its related parties in the first six months of 2023 and 2022, distinguishing between significant shareholders, members of Banco Santander’s board of directors, Banco Santander’s executive vice presidents, Grupo Santander entities and other related parties. Related party transactions were made on terms equivalent to those that prevail in arm’s-length transactions or, when this was not the case, the related compensation in kind was recognised: EUR million 30-06-2023 Expenses and income Significant shareholders Directors and executives Group companies or entities Other related parties Total Expenses Finance costs — — 79 — 79 Leases — — — — — Services received — — — — — Purchases of stocks — — — — — Other expenses — — 57 — 57 — — 136 — 136 Income Finance income — — 188 3 191 Dividends received — — — — — Services rendered — — — — — Sale of stocks — — — — — Other income — — 709 1 710 — — 897 4 901 EUR million 30-06-2023 Other transactions Significant shareholders Directors and executives Group companies or entities Other related parties Total Financing agreements: loans and capital contributions (lender) — 2 376 (199) 179 Financing agreements: loans and capital contributions (borrower) — — (29) 7 (22) Guarantees provided — — — 680 680 Guarantees received — — — — — Commitments acquired — — 51 3 54 Dividends and other distributed profit — 1 — 10 11 Other transactions — — 36 — 36 EUR million 30-06-2023 Balance closing period Significant shareholders Directors and executives Group companies or entities Other related parties Total Debt balances: Customers and commercial debtors — — — — — Loans and credits granted — 13 9,687 256 9,956 Other collection rights — — 969 — 969 — 13 10,656 256 10,925 Credit balances: Suppliers and creditors granted — — — — — Loans and credits received — 21 3,210 115 3,346 Other payment obligations — — 358 — 358 — 21 3,568 115 3,704 EUR million 30-06-2022 Expenses and income Significant shareholders Directors and executives Group companies or entities Other related parties Total Expenses Finance costs — — 16 — 16 Leases — — — — — Services received — — — — — Purchases of stocks — — — — — Other expenses — — 197 — 197 — — 213 — 213 Income Finance income — — 71 — 71 Dividends received — — — — — Services rendered — — — — — Sale of stocks — — — — — Other income — — 683 1 684 — — 754 1 755 EUR million 30-06-2022 Other transactions Significant shareholders Directors and executives Group companies or entities Other related parties Total Financing agreements: loans and capital contributions (lender) — — 715 26 741 Financing agreements: loans and capital contributions (borrower) — 9 362 40 411 Guarantees provided — — — — — Guarantees received — — — — — Commitments acquired — — (12) (2) (14) Dividends and other distributed profit — 1 — 9 10 Other transactions — — (106) — (106) EUR million 31-12-2022 Balance closing period Significant shareholders Directors and executives Group companies or entities Other related parties Total Debt balances: Customers and commercial debtors — — — — — Loans and credits granted — 13 9,311 455 9,779 Other collection rights — — 946 — 946 — 13 10,257 455 10,725 Credit balances: Suppliers and creditors granted — — — — — Loans and credits received — 22 3,239 109 3,370 Other payment obligations — — 372 — 372 — 22 3,611 109 3,742

Off-balance-sheet exposures

Off-balance-sheet exposures	6 Months Ended
	Jun. 30, 2023
Off-Balance-Sheet Exposures
Off-balance-sheet exposures	Off - balance-sheet exposures The off-balance-sheet exposures related to balances representing loans commitments, financial guarantees and other commitments granted (recoverables and non recoverables). Financial guarantees granted include financial guarantees contracts such as financial bank guarantees, credit derivatives, and risks arising from derivatives granted to third parties; non-financial guarantees include other guarantees and irrevocable documentary credits. Loan and other commitments granted include all off-balance-sheet exposures, which are not classified as guarantees provided, including loans commitment granted. EUR million 30-06-2023 31-12-2022 Loan commitments granted 283,903 274,075 Of which impaired 509 653 Financial guarantees granted 14,401 12,856 Of which impaired 538 521 Bank sureties 14,355 12,813 Credit derivatives sold 46 43 Other commitments granted 113,266 92,672 Of which impaired 607 608 Other granted guarantees 53,651 50,508 Other 59,615 42,164 The breakdown of the off-balance sheet exposure and impairment on 30 June 2023 and 31 December 2022 by impairment stages is EUR 402,019 million and EUR 370,729 million of exposure and EUR 332 million and EUR 331 million of impairment in stage 1, EUR 7,897 million and EUR 7,092 million of exposure and EUR 184 million and EUR 191 million of impairment in stage 2, and EUR 1,654 million and EUR 1,782 million of exposure and EUR 240 million and EUR 212 million of impairment in stage 3, respectively.

Average headcount and number of

Average headcount and number of branches	6 Months Ended
	Jun. 30, 2023
Average Headcount And Number Of Branches
Average headcount and number of branches	Average headcount and number of branches The average number of employees at Banco Santander and Grupo Santander, by gender, in the first six months ended 30 June 2023 and 2022 is as follows: Average headcount Bank Group 30-06-2023 30-06-2022 30-06-2023 30-06-2022 Men 12,260 11,867 97,353 90,747 Women 11,732 11,355 112,663 109,055 23,992 23,222 210,016 199,802 The number of branches at 30 June 2023 and 31 December 2022 is as follow: Number of branches Group 30-06-2023 31-12-2022 Spain 1,936 1,966 Group 6,887 7,053 8,823 9,019

Other disclosures

Other disclosures	6 Months Ended
	Jun. 30, 2023
Other Disclosures
Other disclosures	Other disclosures a) Valuation techniques for financial assets and liabilities The following table shows a summary of the fair values, at 30 June 2023 and 31 December 2022, of the financial assets and liabilities indicated below, classified on the basis of the various measurement methods used by Grupo Santander to determine their fair value: EUR million 30-06-2023 31-12-2022 Published price quotations in active markets (Level 1) Internal models (Levels 2 and 3) Total Published price quotations in active markets (Level 1) Internal models (Levels 2 and 3) Total Financial assets held for trading 61,089 122,745 183,834 45,014 111,104 156,118 Non-trading financial assets mandatorily at fair value through profit or loss 1,738 4,058 5,796 1,800 3,913 5,713 Financial assets at fair value through profit and loss 2,491 7,154 9,645 1,976 7,013 8,989 Financial assets at fair value through other comprehensive income 65,596 21,160 86,756 64,216 21,023 85,239 Hedging derivatives (assets) — 7,532 7,532 — 8,069 8,069 Financial liabilities held for trading 15,195 119,693 134,888 16,237 98,948 115,185 Financial liabilities designated at fair value through profit or loss (*) 147 36,073 36,220 212 40,056 40,268 Hedging derivatives (liabilities) — 10,288 10,288 — 9,228 9,228 Liabilities under insurance contracts (*) — 17,584 17,584 — 16,426 16,426 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b). The financial instruments at fair value determined on the basis of published price quotations in active markets (level 1) include government debt securities, private-sector debt securities, derivatives traded in organised markets, securitised assets, shares, short positions and fixed-income securities issued. In cases where price quotations cannot be observed, management makes its best estimate of the price that the market would set, using its own internal models. In most cases, these internal models use data based on observable market parameters as significant inputs (level 2) and, in cases, they use significant inputs not observable in market data (level 3). In order to make these estimates, various techniques are employed, including the extrapolation of observable market data. The best evidence of the fair value of a financial instrument on initial recognition is the transaction price, unless the fair value of the instrument can be obtained from other market transactions performed with the same or similar instruments or can be measured by using a valuation technique in which the variables used include only observable market data, mainly interest rates. During the first six months of 2023 and 2022, Grupo Santander did not make any material transfers of financial instruments between measurement levels other than the transfers included in level 3 table. Grupo Santander has developed a formal process for the systematic valuation and management of financial instruments, which has been implemented worldwide across all the Group’s units. The governance scheme for this process distributes responsibilities between two independent divisions: Treasury (development, marketing and daily management of financial products and market data) and Risk (on a periodic basis, validation of pricing models and market data, computation of risk metrics, new transaction approval policies, management of market risk and implementation of fair value adjustment policies). The approval of new products follows a sequence of steps (request, development, validation, integration in corporate systems and quality assurance) before the product is brought into production. This process ensures that pricing systems have been properly reviewed and are stable before they are used. The most important products and families of derivatives, and the related valuation techniques and inputs, by asset class, are detailed in the consolidated annual accounts as at 31 December 2022. As of 30 June 2023, the CVA (Credit Valuation Adjustment) accounted for was EUR 299 million (a decrease of 14.8% compared to 31 December 2022) and adjustments of DVA (Debt Valuation Adjustment) was EUR 364 million (no changes compared to the end of December 2022). The reduction in CVA is due to the decrease in the credit markets. Set forth below are the financial instruments at fair value whose measurement was based on internal models (levels 2 and 3) at 30 June 2023 and 31 December 2022: EUR million EUR million Fair values calculated using internal models at 30-06-2023 (*) Fair values calculated using internal models at 31-12-2022 (*) Level 2 Level 3 Level 2 Level 3 Valuation techniques Main inputs ASSETS 152,661 9,988 142,832 8,290 Financial assets held for trading 121,705 1,040 110,721 383 Central banks (**) 12,405 — 11,595 — Present value method Yield curves, FX market prices Credit institutions (**) 23,592 — 16,502 — Present value method Yield curves, FX market prices Customers (**) 10,906 145 9,550 — Present value method Yield curves, FX market prices Debt instruments and equity instruments 7,804 414 6,537 43 Present value method Yield curves, FX market prices Derivatives 66,998 481 66,537 340 Swaps 52,475 217 54,367 139 Present value method, Gaussian Copula Yield curves, FX market prices, HPI, Basis, Liquidity Exchange rate options 1,229 3 916 4 Black-Scholes Model Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate options 4,083 29 2,681 39 Black's Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate futures 29 — 113 — Present value method Yield curves, FX market prices Index and securities options 339 85 354 48 Black’s Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Liquidity Other 8,843 147 8,106 110 Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX and EQ market prices, Dividends, Liquidity, Dividends, Correlation, HPI, Credit, Others Hedging derivatives 7,531 1 8,069 — Swaps 6,828 1 6,687 — Present value method Yield curves, FX market prices, Basis Interest rate options 2 — 2 — Black Model Yield curves, FX market prices, Volatility surfaces Other 701 — 1,380 — Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX market prices, Credit, Liquidity, Others Non-trading financial assets mandatorily at fair value through profit or loss 2,146 1,912 2,080 1,833 Equity instruments 970 1,347 643 1,269 Present value method Yield curves, Market price, Dividends and Others Debt instruments 551 337 809 325 Present value method Yield curves Loans and receivables 625 228 628 239 Present value method, swap asset model and CDS Yield curves and Credit curves Financial assets designated at fair value through profit or loss 6,737 417 6,586 427 Credit institutions 626 — 673 — Present value method Yield curves, FX market prices Customers (***) 5,925 5 5,769 5 Present value method Yield curves, FX market prices, HPI Debt instruments 186 412 144 422 Present value method Yield curves, FX market prices Financial assets at fair value through other comprehensive income 14,542 6,618 15,376 5,647 Equity instruments 11 496 9 700 Present value method Yield curves,Market price, Dividends and Others Debt instruments 11,373 263 11,869 229 Present value method Yield curves, FX market prices Loans and receivables 3,158 5,859 3,498 4,718 Present value method Yield curves, FX market prices and Credit curves LIABILITIES 182,818 820 163,733 925 Financial liabilities held for trading 119,291 402 98,533 415 Central banks (**) 16,216 — 5,759 — Present value method FX market prices, Yield curves Credit institutions (**) 14,140 — 9,796 — Present value method FX market prices, Yield curves Customers 19,921 — 12,226 — Present value method FX market prices, Yield curves Derivatives 61,567 402 64,147 415 Swaps 47,317 133 51,191 235 Present value method, Gaussian Copula Yield curves, FX market prices, Basis, Liquidity, HPI Exchange rate options 1,182 — 769 — Black Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate options 4,524 22 3,268 19 Black-Scholes Model Yield curves, Volatility surfaces, FX market prices Index and securities options 599 63 591 42 Black-Scholes Model Yield curves, FX market prices, Liquidity Interest rate and equity futures 32 — 807 — Present value method Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Correlation, Liquidity, HPI Other 7,913 184 7,521 119 Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Correlation, HPI, Credit, Others Short positions 7,447 — 6,605 — Present value method Yield curves ,FX market prices, Equity Hedging derivatives 10,235 53 9,214 14 Swaps 8,598 53 8,142 14 Present value method Yield curves ,FX market prices, Basis Other 1,637 — 1,072 — Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX market prices, Credit, Liquidity and others Financial liabilities designated at fair value through profit or loss (****) 36,073 — 39,905 151 Present value method Yield curves, FX market prices Liabilities under insurance contracts (****) 17,219 365 16,081 345 Present Value Method with actuarial techniques Mortality tables and yield curves (*) The internal models of level 2 implement figures based on the parameters observed in the market, while level 3 internal models uses significant inputs that are not observable in market data. (**) Includes mainly short-term loans/deposits and repurchase/reverse repurchase agreements with corporate customers (mainly brokerage and investment companies). (***) Includes mainly structured loans to corporate clients. (****) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b). Level 3 financial instruments Set forth below are the Group’s main financial instruments measured using unobservable market data as significant inputs of the internal models (level 3): • HTC&S (Hold to collect and sale) syndicated loans classified in the fair value category with changes in other comprehensive income, where the cost of liquidity is not directly observable in the market, as well as the prepayment option in favour of the borrower. • Illiquid equity instruments in non-trading portfolios, classified at fair value through profit or loss and at fair value through equity. • Instruments in Santander UK’s portfolio (loans, debt instruments and derivatives) linked to the House Price Index (HPI). Even if the valuation techniques used for these instruments may be the same as those used to value similar products (present value in the case of loans and debt instruments, and the Black-Scholes model for derivatives), the main factors used in the valuation of these instruments are the HPI spot rate, the growth and volatility thereof, and the mortality rates, which are not always observable in the market and, accordingly, these instruments are considered illiquid. • Callable interest rate derivatives (Bermudan-style options) where the main unobservable input is mean reversion of interest rates. • Trading derivatives on interest rates, taking as an underlying asset titling and with the amortization rate (CPR, Conditional prepayment rate) as unobservable main entry. • Derivatives from trading on inflation in Spain, where volatility is not observable in the market. • Equity volatility derivatives, specifically indices and equities, where volatility is not observable in the long term. • Derivatives on long-term interest rate and FX in some units (mainly South America) where for certain underlyings it is not possible to demonstrate observability to these terms. • Debt instruments referenced to certain illiquid interest rates, for which there is no reasonable market observability. The measurements obtained using the internal models might have been different if other methods or assumptions had been used with respect to interest rate risk, to credit risk, market risk and foreign currency risk spreads, or to their related correlations and volatilities. Nevertheless, the Bank’s directors consider that the fair value of the financial assets and liabilities recognised in the interim condensed consolidated balance sheet and the gains and losses arising from these financial instruments are reasonable. The net amount recorded in the results of the first six months of 2023 arising from models whose significant inputs are unobservable market data (level 3) amounted to EUR 178 million profit (EUR 19 million in the first six months of 2022). The table below shows the effect, at 30 June 2023 and 31 December 2022, on the fair value of the main financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation. This effect was determined by applying the probable valuation ranges of the main unobservable inputs detailed in the following table: 30-06-2023 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Financial assets held for trading Loans and advances to customers Repos/Reverse repos Others Long-term repo spread n.a. n.a. (0.04) 0.00 Debt securities Corporate debt Discounted Cash Flows Credit spread 0% - 10% 5.04% (1.51) 1.54 Corporate debt Price based Market price 85% - 115% 100.00% 0.00 0.00 Government debt Discounted Cash Flows Discount curve 0% - 8% 3.93% (8.25) 7.97 Derivatives CCS Discounted Cash Flows Interest rate (1.4)% - 1.4% 0.00% 0.00 0.00 CCS Forward estimation Interest rate (6)bp - 6bp 2.32bp (0.04) 0.07 EQ Options EQ option pricing model Volatility 0% - 90% 61.30% (0.38) 0.84 EQ Options Local volatility Volatility 10% - 90% 50.00% (1.91) 1.91 FRAs Asset Swap model Interest rate 0% - 6% 2.71% (0.94) 0.78 Inflation Derivatives Asset Swap model Inflation Swap Rate 0% - 10% 3.41% (0.29) 0.15 IR Options IR option pricing model Volatility 0% - 60% 35.82% (0.26) 0.38 IRS Asset Swap model Interest rate 0% - 15% 9.20% (0.05) 0.08 IRS Discounted Cash Flows Credit spread 1.1% - 5.8% 3.67% (1.80) 1.95 IRS Discounted Cash Flows Swap rate 8.2% - 8.7% 8.44% (0.54) 0.53 IRS Forward estimation Interest rate (6)bp - 6bp 0.12bp (0.04) 0.05 IRS Others Others 5% - n.a n.a (0.69) 0.28 IRS Prepayment modelling Prepayment rate 3.1% - 5.7% 4.33% 0.00 0.16 Others Forward estimation Price 0% - 2% 0.62% (0.46) 0.20 Property derivatives Option pricing model Growth rate (5)% - 5% 0.00% (4.08) 4.08 Financial assets designated at fair value through profit or loss Loans and advances to customers Loans Discounted Cash Flows Credit spreads 0.1% - 2% 1.05% (0.15) 0.15 Mortgage portfolio Black Scholes model Growth rate (5)% - 5% 0.00% (0.47) 0.47 Repos/Reverse repos Others Repo curve 4.8bp - 6.7bp 5.63bp 0.00 0.00 30-06-2023 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Debt securities Other debt securities Others Inflation Swap Rate 0% - 8% 3.88% (4.51) 4.24 Non-trading financial assets mandatorily at fair value through profit or loss Debt securities Property securities Probability weighting Growth rate 5% - 5% 0% (0.47) 0.47 Equity instruments Equities Price Based Price 90% - 110% 100% (134.66) 134.66 Financial assets at fair value through other comprehensive income Loans and advances to customers Loans Discounted Cash Flows Credit spread n.a n.a (22.17) 0.00 Loans Discounted Cash Flows Interest rate curve 8% - 9% 8.60% (0.86) 0.86 Loans Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (22.80) 22.80 Loans Forward estimation Credit spread 1.68% - 2.7% 1.68% (0.68) 0.00 Debt securities Corporate debt Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (0.52) 0.52 Government debt Discounted Cash Flows Interest rate (1.9)% - 0.1% (0.87)% (0.01) 0.01 Equity instruments Equities Price Based Price 90% - 110% 100.00% (49.63) 49.63 Financial liabilities held for trading Derivatives Cap&Floor Volatility option model Volatility 10% - 90% 32.37% (0.77) 0.30 31-12-2022 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Financial assets held for trading Debt securities Corporate debt Discounted Cash Flows Credit spread 0% - 20% 10.07% (1.38) 1.40 Corporate debt Price based Market price 85% - 115% 100.00% — — Government debt Discounted Cash Flows Discount curve 0% - 10% 4.92% (8.34) 8.07 Derivatives CCS Discounted Cash Flows Interest rate (0.70)% - 0.70% 0.00% — — CCS Forward estimation Interest rate (4)bp - 4bp 0.42bp (0.06) 0.07 CDS Discounted Cash flows Credit Spread 14.90bp - 42.10bp 21.99bp (0.05) 0.02 EQ Options EQ option pricing model Volatility 0% - 90% 61.30% (0.23) 0.48 EQ Options Local volatility Volatility 10% - 90% 50.00% (1.05) 1.05 FRAs Asset Swap model Interest rate 0% - 6% 2.71% (1.16) 0.95 Fx Swap Others Others n.a. n.a (1.37) 1.37 Inflation Derivatives Asset Swap model Inflation Swap Rate 0% - 10% 3.41% (0.21) 0.11 Inflation Derivatives Volatility option model Volatility 0% - 40% 17.37% (0.14) 0.11 IR Options IR option pricing model Volatility 0% - 60% 35.82% (0.30) 0.44 IRS Asset Swap model Interest rate 0% - 15% 9.20% (0.05) 0.08 IRS Discounted Cash Flows Credit spread 1.25% - 6.29% 3.89% (2.25) 2.47 IRS Discounted Cash Flows Swap rate 8.6% - 9.1% 8.84% (0.02) 0.03 IRS Forward estimation Interest rate (6)pb - 6pb 0.13bp (0.04) 0.04 IRS Others Others 5% - n.a n.a (11.58) — IRS Prepayment modelling Prepayment rate 2.5% - 6.2% 4.17% (0.06) 0.05 Others Forward estimation Price 0% - 2% 0.62% (0.53) 0.24 Property derivatives Option pricing model Growth rate (5)% - 5% 0.00% (5.75) 5.75 Financial assets designated at fair value through profit or loss Loans and advances to customers Loans Discounted Cash Flows Credit spreads 0.1% - 2% 1.05% (0.18) 0.18 Mortgage portfolio Black Scholes model Growth rate (5)% - 5% 0.00% (0.79) 0.79 31-12-2022 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Debt securities Other debt securities Others Inflation Swap Rate 0% - 10% 4.74% (4.25) 3.83 Non-trading financial assets mandatorily at fair value through profit or loss Debt securities Corporate debt Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0.01bp (0.33) 0.33 Corporate debt Probability weighting Growth rate (5)% - 5% 0.00% (0.68) 0.68 Equity instruments Equities Price Based Price 90% - 110% 100.00% (126.87) 126.87 Financial assets at fair value through other comprehensive income Loans and advances to customers Loans Discounted Cash Flows Credit spread n.a. n.a (24.10) — Loans Discounted Cash Flows Interest rate curve 0.8% - 1.0% 0.88% (0.08) 0.08 Loans Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (17.51) 17.51 Loans Forward estimation Credit spread 2.56% - 3.40% 2.56% (0.49) — Debt securities Government debt Discounted Cash Flows Interest rate (0.4)% - 1.6% 0.63% (0.01) 0.01 Equity instruments Equities Price Based Price 90% - 110% 100.00% (70.04) 70.04 Financial liabilities held for trading Derivatives Cap&Floor Volatility option model Volatility 10% - 90% 40.73% (0.29) 0.18 Financial liabilities designated at fair value through profit or loss Loans and advances to customers Repos/Reverse repos Others Long-term repo spread n.a. n.a. (0.13) — Lastly, the changes in the financial instruments classified as level 3 in the first six months of 2023 and 2022 were as follows: 01-01-2023 Changes 30-06-2023 EUR million Fair value calculated using internal models (Level 3) Purchases/Settlements Sales/Amortisation Changes in fair value recognized in profit or loss Changes in fair value recognised in equity Level reclassifications Other Fair value calculated using internal models (Level 3) Financial assets held for trading 383 198 (72) 77 — 303 151 1,040 Customers — — — (1) — — 146 145 Debt instruments 42 52 (4) 1 — 316 6 413 Equity instruments 1 — — — — — — 1 Trading derivatives 340 146 (68) 77 — (13) (1) 481 Swaps 139 — (3) 93 — — (12) 217 Exchange rate options 4 — — (1) — — — 3 Interest rate options 39 — — (10) — — — 29 Index and securities options 48 52 — 3 — (23) 5 85 Other 110 94 (65) (8) — 10 6 147 Hedging derivatives (Assets) — — — — — 1 — 1 Swaps — — — — — 1 — 1 Financial assets designated at fair value through profit or loss 427 — — (40) — — 30 417 Loans and advances to customers 5 — — — — — — 5 Debt instruments 422 — — (40) — — 30 412 Non-trading financial assets mandatorily at fair value through profit or loss 1,833 163 (116) 48 — — (16) 1,912 Loans and advances to customers 239 59 (63) (16) — — 9 228 Debt instruments 325 32 (25) 3 — — 2 337 Equity instruments 1,269 72 (28) 61 — — (27) 1,347 Financial assets at fair value through other comprehensive income 5,647 4,197 (3,595) — (222) 505 86 6,618 Loans and advances to customers 4,718 4,196 (3,590) — 23 473 39 5,859 Debt instruments 229 — (3) — (1) 32 6 263 Equity instruments 700 1 (2) — (244) — 41 496 TOTAL ASSETS 8,290 4,558 (3,783) 85 (222) 809 251 9,988 Financial liabilities held for trading 415 304 (101) (91) — (118) (7) 402 Trading derivatives 415 304 (101) (91) — (118) (7) 402 Swaps 235 104 (70) (25) — (97) (14) 133 Exchange rate options — 24 (24) — — — — — Interest rate options 19 7 (1) (3) — — — 22 Index and securities options 42 38 (6) 3 — (21) 7 63 Others 119 131 — (66) — — — 184 Hedging derivatives (Liabilities) 14 — — 3 — 36 — 53 Swaps 14 — — 3 — 36 — 53 Financial liabilities designated at fair value through profit or loss (*) 151 — (5) 1 — — (147) — Liabilities covered by insurance and reinsurance contracts (*) 345 — — (6) — — 26 365 TOTAL LIABILITIES 925 304 (106) (93) — (82) (128) 820 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b). 01-01-2022 Changes 30-06-2022 EUR million Fair value calculated using internal models (Level 3) Purchases/Settlements Sales/Amortisation Changes in fair value recognized in profit or loss Changes in fair value recognised in equity Level reclassifications Other Fair value calculated using internal models (Level 3) Financial assets held for trading 537 29 (9) (52) — (2) 14 517 Debt instruments 22 — — 1 — — 5 28 Equity instruments 2 — — (1) — — — 1 Trading derivatives 513 29 (9) (52) — (2) 9 488 Swaps 224 — — 5 — — (13) 216 Exchange rate options 12 — (9) 11 — — (1) 13 Interest rate options 182 — — (98) — (1) — 83 Index and securities options 41 — — 1 — — (40) 2 Other 54 29 — 29 — (1) 63 174 Financial assets designated at fair value through profit or loss 418 — (3) 4 — — 75 494 Credit institutions — — — — — — — — Loans and advances to customers 18 — (3) (2) — — — 13 Debt instruments 400 — — 6 — — 75 481 Non-trading financial assets mandatorily at fair value through profit or loss 1,865 112 (218) 110 — (29) 105 1,945 Loans and advances to customers 268 20 (67) 40 — — 58 319 Debt instruments 366 — (25) (3) — (29) 2 311 Equity instruments 1,231 92 (126) 73 — — 45 1,315 Financial assets at fair value through other comprehensive income 4,847 4,962 (5,187) — (191) 205 69 4,705 Loans and advances to customers 3,880 4,960 (5,177) — (17) 137 5 3,788 Debt instruments 146 — (1) — 9 — 63 217 Equity instruments 821 2 (9) — (183) 68 1 700 TOTAL ASSETS 7,667 5,103 (5,417) 62 (191) 174 263 7,661 Financial liabilities held for trading 160 84 (61) 42 — (14) — 211 Trading derivatives 160 84 (61) 42 — (14) — 211 Swaps 44 15 (5) 80 — — (13) 121 Exchange rate options 7 6 (14) 1 — — — — Interest rate options 26 42 (20) (16) — — — 32 Index and securities options 67 — (2) — — — (65) — Interest rate and equity futures — — — — — — — — Others 16 21 (20) (23) — (14) 78 58 Financial liabilities designated at fair value through profit or loss (*) 151 — (2) 1 — — — 150 Liabilities covered by insurance and reinsurance contracts (*) 318 — (97) — — — 48 269 TOTAL LIABILITIES 629 84 (160) 43 — (14) 48 630 The following terms are used with the meanings specified below: • Refinancing transaction: transaction that is granted or used, for reasons relating to current or foreseeable financial difficulties of the borrower, to repay one or more of the transactions granted to it, or through which the payments on such transactions are brought fully or partially up to date, in order to enable the borrowers of the cancelled or refinanced transactions to repay their debt (principal and interest) because they are unable, or might foreseeably become unable, to comply with the conditions thereof in due time and form. • Restructured transaction: transaction with respect to which, for economic or legal reasons relating to current or foreseeable financial difficulties of the borrower, the financial terms and conditions are modified in order to facilitate the payment of the debt (principal and interest) because the borrower is unable, or might foreseeably become unable, to comply with the aforementioned terms and conditions in due time and form, even if such modification is envisaged in the agreement. For maximum guarantees amount, we will consider as follows: • Real guarantees: the appraisal amount or valuation amount of the real guarantees received; for each transaction it cannot be higher than the covered amount of exposure. 30-06-2023 Total Of which: impaired Without real guarantee With real guarantee Without real guarantee With real guarantee Maximum amount of the actual collateral that can be considered Maximum amount of the actual collateral that can be considered Amounts in million euros, except number of transactions in units Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Credit entities — — — — — — — — — — — — — — Public sector 10,578 364 36 5 2 — 3 9 3 9 — — — 3 Other financial institutions and: individual shareholder 1,197 168 1,034 347 72 129 74 622 69 660 158 19 48 58 Non financial institutions and individual shareholder 304,058 8,550 60,027 7,652 4,377 1,750 3,504 160,329 3,050 39,771 4,260 2,371 861 3,010 Of which: Financing for constructions and property development 16,476 138 2,111 528 421 37 169 9,867 88 1,281 260 194 15 145 Other warehouses 5,782,449 6,877 513,622 9,589 4,807 3,741 4,637 3,098,609 3,020 267,646 4,492 1,887 1,805 3,441 Total 6,098,282 15,959 574,719 17,593 9,258 5,620 8,218 3,259,569 6,142 308,086 8,910 4,277 2,714 6,512 Financing classified as non-current assets and disposable groups of items that have been classified as held for sale — — — — — — — — — — — — — — 31-12-2022 Total Of which: impaired Without real guarantee With real guarantee Without real guarantee With real guarantee Maximum amount of the actual collateral that can be considered Maximum amount of the actual collateral that can be considered Amounts in million euros, except number of transactions in units Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Credit entities — — — — — — — — — — — — — — Public sector 6,679 227 31 7 2 — 6 7 2 13 5 2 — 5 Other financial institutions and: individual shareholder 1,210 321 785 339 88 86 61 641 9 620 135 22 6 55 Non financial institutions and individual shareholder 312,934 9,578 60,003 8,419 4,790 1,834 3,912 174,300 3,178 39,479 4,890 2,741 886 3,439 Of which: Financing for constructions and property development 15,578 125 1,890 570 423 48 208 10,325 78 1,255 335 213 33 188 Other warehouses 5,878,455 5,790 492,232 9,492 4,835 3,502 4,287 3,735,412 2,911 246,751 4,055 1,917 910 3,122 Total 6,199,278 15,916 553,051 18,257 9,715 5,422 8,266 3,910,360 6,100 286,863 9,085 4,682 1,802 6,621 Financing classified as non-current assets and disposable groups of items that have been classified as held for sale — — — — — — — — — — — — — — c) Real estate business – Spain i) Portfolio of home purchase loans to families Home purchase loans granted to families in Spain on 30 June 2023 amounted to EUR 61,606 million (EUR 63,688 million at 31 December 2022). Of which mortgage guarantees are 99.63%: Million euros 30-06-2023 31-12-2022 Gross Amount Of which: impaired Gross Amount Of which: impaired Home purchase loans to families 61,606 987 63,688 1,088 - Without mortgage guarantee 229 14 288 24 - With mortgage guarantee 61,377 973 63,400 1,064 The risk profile of the home purchase mortgage loan portfolio in Spain remained at a medium-low level, with limited prospects of additional impairment: • Principal is repaid on all mor tgages from the start. • Early repayment is common so the average life of the transaction is well below that of the contract. • High quality of collateral concentrated almost exclusively in financing the first home. • Average affordability rate at the end of June st ood at 29%. • 94.04% of the portfolio has a LTV below 80%, calcula ted a s total risk/latest available house appraisal. 30-06-2023 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 18,444 20,765 18,512 2,523 1,133 61,377 Of which: impaired 142 193 204 167 267 973 31-12-2022 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 17,877 20,617 20,225 3,294 1,387 63,400 Of which: impaired 132 192 220 181 339 1,064 ii) Financing construction and property development At 30 June 2022 and 31 December 2022 the financing amount related to construction and real estate business in Spain amounted to EUR 2,246 million and EUR 2,283 million net of allowances, respectively. 30-06-2023 Million euros Gross amount Excess of gross exposure over maximum recoverable amount of effective collateral Specific allowance Financing for construction and property development recognised by the Group's credit institutions (including land) (business in Spain) 2,282 209 36 Of which: watchlist/ impaired 75 8 26 Memorandum items: Written-off assets 376 31-12-2022 Million euros Gross amount Excess of gross exposure over maximum recoverable amount of effective collateral Specific allowance Financing for construction and property development recognised by the Group's credit institutions (including land) (business in Spain) 2,327 211 44 Of which: watchlist/ impaired 94 21 33 Memorandum items: Written-off assets 487 30-06-2023 31-12-2022 Million euros Carrying amount Memorandum items: Total loans and advances to customers excluding the public sector (business in Spain) (book value) 243,814 250,702 Total consolidated assets (Total business) (book value) 1,780,493 1,734,659 Impairment losses and provision for exposure classified as normal (business in Spain) 1,247 1,311 At the end 30 June 2023 and 31 December 2022 the concentration of this portfolio was as follows: Loans: gross amount Million euros 30-06-2023 31-12-2022 1. Without mortgage guarantee 36 42 2. With mortgage guarantee 2,246 2,285 2.1 Completed buildings 951 1,138 2.1.1 Residential 528 674 2.1.2 Other 423 464 2.2 Buildings and other constructions under construction 1,273 1,110 2.2.1 Residential 1,216 1,103 2.2.2 Other 57 7 2.3 Land 22 37 2.3.1 Developed consolidated land 14 25 2.3.2 Other land 8 12 Total 2,282 2,327 d) Foreclosed real estate assets The following table shows the breakdown at 30 June 2023 and 31 December 2022 of the foreclosed assets for the Spanish business: 30-06-2023 Million euros Gross carrying amount Valuation Adjustments Of which: Impairment losses since time of the foreclosure Carrying amount Property assets arising from financing provided to construction and property development companies 5,241 2,941 2,162 2,300 Of which: Completed Buildings 1,210 630 522 580 Residential 262 126 102 136 Other 948 504 420 444 Buildings under

Additional disclosure requireme

Additional disclosure requirements	6 Months Ended
	Jun. 30, 2023
Parent Company Financial Statements And Preference Shares And Preferred Securities [Abstract]
Additional disclosure requirements	Additional disclosure requirements This note includes relevant information about additional disclosure requirements. 17.1 Parent company financial statements Following are the summarised balance sheets of Banco Santander, S.A. as of 30 June 2023 and 31 December 2022. In the financial information of the Parent, investments in subsidiaries, jointly controlled entities and associates are recorded at cost. UNAUDITED CONDENSED BALANCE SHEETS 30 June 2023 31 December 2022 (Parent company only) (Millions of Euros) Assets Cash and due from banks 158,281 177,920 Of which: To bank subsidiaries 7,510 14,548 Trading account assets 104,836 92,128 Investment securities 58,000 47,560 Of which: To bank subsidiaries 16,248 14,287 To non-bank subsidiaries 1,171 1,327 Net Loans and leases 302,561 314,905 Of which: To non-bank subsidiaries 23,473 25,312 Investment in affiliated companies 96,997 94,213 Of which: To bank subsidiaries 73,360 70,698 To non-bank subsidiaries 23,637 23,515 Premises and equipment, net 6,466 6,513 Other assets 14,663 16,787 Total assets 741,804 750,026 Liabilities Deposits 378,537 418,841 Of which: To bank subsidiaries 8,514 16,619 To non-bank subsidiaries 12,995 15,106 Short-term debt 93,116 54,255 Long-term debt 104,059 114,447 Total debt 197,175 168,702 Of which: To bank subsidiaries 88 — To non-bank subsidiaries 2,147 1,638 Other liabilities 94,986 92,437 Total liabilities 670,698 679,980 Stockholders' equity Capital stock 8,092 8,397 Retained earnings and other reserves 63,014 61,649 Total stockholders' equity 71,106 70,046 Total liabilities and Stockholders’ Equity 741,804 750,026 Following are the summarised unaudited statements of income of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED STATEMENTS OF INCOME Six months ended Six months ended (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) Interest income 13,380 7,004 Interest from earning assets 10,249 4,191 Dividends from affiliated companies 3,131 2,813 Of which: From bank subsidiaries 2,618 2,625 From non-bank subsidiaries 513 188 Interest expense (6,938) (2,068) Interest income / (Charges) 6,442 4,936 Provision for credit losses (755) (818) Interest income / (Charges) after provision for credit losses 5,687 4,118 Non-interest income: 2,397 2,558 Non-interest expense: (4,187) (4,202) Income before income taxes 3,897 2,474 Income tax expense (243) (43) Net income 3,654 2,431 Following are the summarised unaudited statements of comprehensive income of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED STATEMENTS OF Six months ended Six months ended COMPREHENSIVE INCOME (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) NET INCOME 3,654 2,431 OTHER COMPREHENSIVE INCOME (183) (683) Items that may be reclassified subsequently to profit or loss 104 (551) Hedging instruments (items not designated) — — Revaluation gains (losses) — — Amounts transferred to income statement — — Other reclassifications — — Debt instruments at fair value with changes in other comprehensive income 43 (378) Revaluation gains (losses) 38 (327) Amounts transferred to income statement 5 (52) Other reclassifications — — Cash flow hedges: 133 (408) Revaluation gains/(losses) (24) (394) Amounts transferred to income statement 157 (14) Amounts transferred to initial carrying amount of hedged items — — Other reclassifications — — Hedges of net investments in foreign operations: — — Exchange differences — — Non-current assets held for sale — — Income tax (72) 235 Items that will not be reclassified to profit or loss: (287) (132) Actuarial gains/(losses) on pension plans 12 217 Other recognised income and expense of investments in subsidiaries, joint ventures and associates — — Changes in the fair value of equity instruments measured at fair value through other comprehensive income (275) (344) Gains or losses resulting from the accounting for hedges of equity instruments measured at fair value through other comprehensive income, net — — Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedged item) (41) 37 Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedging instrument) 41 (37) Changes in the fair value of financial liabilities at fair value through profit or loss attributable to changes in credit risk (34) 84 Income tax relating to items that will not be reclassified 10 (89) TOTAL COMPREHENSIVE INCOME 3,471 1,748 Following are the summarised unaudited cash flow statements of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED CASH FLOW STATEMENTS Six months ended Six months ended (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) 1. Cash flows from operating activities Consolidated profit 3,654 2,431 Adjustments to profit 2,080 (483) Net increase/decrease in operating assets (10,186) (59,337) Net increase/decrease in operating liabilities (14,608) 80,616 Reimbursements/payments of income tax 1,134 (287) Total net cash flows from operating activities (1) (17,926) 22,940 2. Cash flows from investing activities Investments (-) (2,438) (2,072) Divestments (+) 4,099 4,440 Total net cash flows from investment activities (2) 1,661 2,368 3. Cash flows from financing activities Issuance of own equity instruments — — Disposal of own equity instruments 336 202 Acquisition of own equity instruments (1,622) (1,067) Issuance of debt securities 1,500 — Redemption of debt securities (438) (1,203) Dividends paid (963) (869) Issuance/Redemption of equity instruments — — Other collections/payments related to financing activities (87) (158) Total net cash flows from financing activities (3) (1,274) (3,095) 4. Effect of exchange rate changes on cash and cash equivalents (4) (429) 448 5. Net increase/decrease in cash and cash equivalents (1+2+3+4) (17,968) 22,661 Cash and cash equivalents at beginning of period 130,083 91,736 Cash and cash equivalents at end of period 112,115 114,397 17.2 Preference Shares and Preferred Securities The following table shows the balance of the preference shares and preferred securities as of 30 June 2023 and 31 December 2022: 30 June 2023 31 December 2022 (Millions of Euros) Preference shares 205 198 Preferred securities 7,864 7,898 Total at period-end 8,069 8,096 Both preference shares and preferred securities are recorded under the “Financial liabilities at amortized cost – Subordinated Liabilities” caption in the consolidated balance sheet as of 30 June 2023 and 31 December 2022. Preference shares include the financial instruments issued by the consolidated companies which, although equity for legal purposes, do not meet the requirements for classification as equity in the financial statements. These shares do not carry any voting rights and are non-cumulative. Preference shares include non-cumulative preferred non-voting shares issued by Santander UK plc. Preferred securities include non-cumulative preferred non-voting securities issued by Banco Santander, S.A. For the purposes of payment priority, preferred securities are junior to all general creditors and to subordinated deposits. The payment of dividends on these securities, which have no voting rights, is conditional upon obtaining sufficient distributable profit and upon the limits imposed by Spanish banking regulations on equity. Preference shares and preferred securities are perpetual securities and there is no obligation that requires the Group to redeem them. All securities have been fully subscribed by third parties outside the Group. In the consolidated balance sheets, these securities are shown net of any temporary transactions relating to liquidity guarantees. For further information, see Note 23.c. to our consolidated financial statements in Part 1 of our 2022 Form 20-F filed with the SEC on 1 March 2023 and Note 9.b. to our consolidated financial statements in Part 2 of this report. Outstanding at 30 June 2023 Amount in Preference Shares currency Interest rate Redemption Issuer/Date of issue Currency (million) Option (A) Santander UK plc, October 1995 Pounds Sterling 80.3 10.375 % No option Santander UK plc, February 1996 Pounds Sterling 80.3 10.375 % No option Outstanding at 30 June 2023 Amount in Preferred Securities currency Interest rate Maturity date Issuer/Date of issue Currency (million) Banco Santander, S.A. Banco Santander, S.A., September 2017 Euro 1,000.0 5.25 % (B) Perpetuity Banco Santander, S.A., March 2018 Euro 1,500.0 4.75 % (C) Perpetuity Banco Santander, S.A., February 2019 US Dollar 1,200.0 7.50 % (D) Perpetuity Banco Santander, S.A., January 2020 Euro 1,500.0 4.375 % (E) Perpetuity Banco Santander, S.A., May 2021 US Dollar 1,000.0 4.75 % (F) Perpetuity Banco Santander, S.A., May 2021 Euro 750.0 4.125 % (G) Perpetuity Banco Santander, S.A., September 2021 Euro 1,000.0 3.625 % (H) Perpetuity Santander Finance Preferred, S.A. (Unipersonal), September 2004 Euro 144.0 €CMS 10 +0.05% subject to a maximum distribution of 8% per annum Perpetuity A. From these dates the issuer can redeem the shares, subject to prior authorization by the national supervisor. B. Payment is subject to certain conditions and to the discretion of Banco Santander. The 5.25% interest rate is set for the first six years. After that, it will be reviewed by applying a margin of 499.9 basis points on the 5-year Mid-Swap Rate. C. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.75% interest rate is set for the first seven years. After that, it will be reviewed by applying a margin of 409.7 basis points on the Mid-Swap Rate. D. Payment is subject to certain conditions and to the discretion of Banco Santander. The 7.50% interest rate is set for the first five years. After that, it will be reviewed every 5 years by applying a margin of 498.9 basis points on the Mid-Swap Rate. E. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.375% interest rate is set for the first six years. After that, it will be reviewed every 5 years by applying a margin of 453.4 basis points on the 5-year Mid-Swap Rate. F. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.750% interest rate is set for the first six years, revised every 5 years thereafter by applying a margin of 375.3 basis points over the 5-year UST rate. G. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.125% interest rate is set for the first seven years, revised every 5 years thereafter by applying a margin of 431.1 basis points over the applicable 5-year Euro mid-swap. H. Payment is subject to certain conditions and to the discretion of Banco Santander. The 3.625% interest rate is set for the first eight years, revised every 5 years thereafter by applying a margin of 376 basis points over the 5-year Mid-Swap Rate. Santander Finance Preferred, S.A. (Unipersonal) - issuer of registered securities guaranteed by Banco Santander, S.A. until November 2017, merged on that date with Banco Santander, S.A.

Introduction, basis of presen_2

Introduction, basis of presentation of the interim condensed consolidated financial statements and other information (Policies)	6 Months Ended
	Jun. 30, 2023
Disclosure of reclassifications or changes in presentation [abstract]
Basis of presentation of the interim financial statements	Basis of presentation of the interim financial statements Under Regulation (EC) n.º 1606/2002 of the European Parliament and of the Council of 19 July 2002 all companies governed by the law of an EU Member State and whose securities are admitted to trading on a regulated market of any Member State must prepare their consolidated financial statements for the years beginning on or after 1 January, 2005 in conformity with the International Financial Reporting Standards ('IFRS') previously adopted by the European Union ('EU-IFRS'). In order to adapt the accounting system of Spanish credit institutions with the principles and criteria established by the IFRS adopted by the European Union ('EU-IFRS'), the Bank of Spain published circular 4/2017, dated 27 November 2017, and subsequent changes, on Public and Confidential Financial Reporting Standards and Financial Statement Formats. The consolidated annual accounts for 2022 were authorised at the board of directors meeting on 27 February 2023 in compliance with International Financial Reporting Standards as adopted by the European Union, taking into account Bank of Spain Circular 4/2017, and subsequent modifications, using the basis of consolidation, accounting policies and measurement bases described in Note 2 to the aforementioned consolidated annual accounts and, accordingly, they presented fairly Grupo Santander’s consolidated equity and consolidated financial position at 31 December 2022 and the consolidated results of its operations, and the consolidated cash flows in 2022. The aforementioned consolidated annual accounts, which are included in Grupo Santander’s Form 20-F filed with the U.S. Securities and Exchange Commission on 1 March 2023, and these interim financial statements are also in compliance with International Financial Reporting Standards as issued by the International Accounting Standards Board ('IFRS-IASB', and together with EU-IFRS, 'IFRS'). These interim financial statements were prepared and are presented in accordance with International Accounting Standard (IAS 34), Interim Financial Reporting, for the preparation of interim financial statements in accordance with the provisions of article 12 of Royal Decree 1362/2007 taking into account the requirements of Circular 3/2018, of June 28, of the Securities and Exchange Commission (CNMV). These interim financial statements will be included in the Half-Yearly Financial Information corresponding to the first half of 2023 that the Group presents in accordance with the aforementioned Circular 3/2018. In accordance with IAS 34, the interim financial statements are intended only to provide an update on the content of the latest consolidated annual accounts authorised for issue, focusing on new activities, events and circumstances occurring during the first six months, and does not duplicate information previously reported in the latest consolidated annual accounts. Consequently, these interim financial statements do not include all the information that would be required for a complete set of consolidated annual accounts prepared in accordance with IFRS and, accordingly, for a proper comprehension of the information included in these interim financial statements, they should be read together with Grupo Santander’s consolidated annual accounts for the year ended 31 December 2022. Grupo Santander policies include presenting the interim financial statements for its use in the different markets using the Euro as its presentation currency. The amounts held in other currencies and the balances of entities whose functional currency is not the Euro, have been translated to the presentation currency in accordance with the criteria indicated in Note 2.a to the consolidated annual accounts for 2022. As indicated in that note, for practical reasons, the balance sheet amount has been converted to the closing exchange rate, the equity to the historical type, and the income and expenses have been converted by applying the average exchange rate of the period; the application of such exchange rate or that corresponding to the date of each transaction does not lead to significant differences in the interim financial statements of Grupo Santander. The accounting policies and methods used in preparing these interim financial statements are the same as those applied in the consolidated annual accounts for 2022 taking into account the standards and interpretations with effective application date during the first six months of 2023, which are detailed below: – IFRS 17 Insurance Contracts and amendments to IFRS 17: new general accounting standard for insurance contracts, which includes the recognition, measurement, presentation and disclosure of information. Insurance contracts combine financial and service provision features that, in many cases, generate variable long- term cash flows. To properly reflect these characteristics, IFRS 17 combines the measurement of future cash flows with the recording of the contract result during the period in which the service is provided, presents separately the financial results from the results for the provision of the service and allows entities, through the choice of an accounting policy option, to recognize the financial results in the income statement or in other comprehensive income. Applicable retrospectively from 1 January 2023. The Group has carried out a project to implement IFRS 17 with all affected Group entities and has drawn up an accounting policy that establishes the accounting criteria for recording insurance contracts. Grupo Santander concluded the analysis of the effects of this new standard without having identified material equity impacts in its interim financial statements due to the application of said standard, except for a reclassification of the balance sheet to the heading 'Liabilities covered by insurance or reinsurance contracts', registered at 1 January 2023, of a portfolio of products for an amount of approximately EUR 16 billion, derived from the different treatment that this new standard establishes for the components of an insurance contract. – The amendments to IAS 1 Presentation of Financial Statements require companies to disclose material information about their accounting policies rather than their significant accounting policies. Applicable from 1 January 2023. – The amendments to IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors clarifies how to distinguish changes in accounting policies, which are generally applied retrospectively, from changes in accounting estimates, which are generally applied prospectively. Applicable from 1 January 2023. – The amendments to IAS 12 Income Taxes require companies to recognise deferred tax on transactions that, on initial recognition, give rise to equal amounts of taxable and deductible temporary differences. In addition, entities should recognise deferred tax assets (to the extent that it is probable that they can be utilised) and deferred tax liabilities at the beginning of the earliest comparative period for all deductible and taxable temporary differences associated with: • Right-of-use assets and lease liabilities. • Decommissioning, restoration and similar liabilities, and the corresponding amounts recognised as part of the cost of the related assets. The cumulative effect of recognising these adjustments is recognised in retained earnings, or another component of equity, as appropriate. Applicable from 1 January 2023. By the time of the preparation of these interim financial statements, there is an amendment to IAS 12 that was approved by the IASB on 23 May 2023 with an effective date of 1 January 2023, and that is pending adoption by the European Union for the current exercise. – The amendments to IAS 12 Income Taxes applies to income taxes arising from tax law enacted or substantively enacted to implement the Pillar Two model rules published by the Organisation for Economic Co-operation and Development (OECD), including tax law that implements qualified domestic minimum top-up taxes described in those rules. The amendment includes the mandatory and temporary exception to the recognition and breakdown of deferred tax assets and liabilities derived from said Pillar Two model rules (applicable from the date of publication of the amendment) and establishes additional information requirements, differentiating between whether said tax law has entered into force (applicable from the date of publication of the amendment), or said tax law is enacted or substantially enacted, in which case the information requirements will be necessary for the annual periods beginning on or after 1 January 2023 (without any information requirement in the intermediate periods). Banco Santander has not applied the aforementioned exception since there are no tax laws for the implementation of the model rules of Pillar Two in force in the financial year 2023 for the geographies in which the Group operates. The aforementioned amendments to accounting standards have not had a significant effect on Grupo Santander’s financial statements, except for what was disclosed before.
Use of critical estimates	Use of critical estimates The consolidated results and the determination of the consolidated equity are sensitive to the accounting principles and policies, valuation criteria and estimates used by the directors of Banco Santander in preparing the interim financial statements. The main accounting principles, policies, and valuation criteria are indicated in Note 2 of the consolidated annual accounts of the year 2022, except for those indicated in these interim financial statements due to the rules that have come into effect during the first six months of the year 2023. The interim financial statements contain estimates made by the senior management of Banco Santander and of the consolidated entities in order to quantify certain of the assets, liabilities, income, expenses and obligations reported in the consolidated entities. These estimates, which were made on the basis of the best information available, relate mainly to the following: 1. The income tax expense, which is recognised in interim periods based on the best estimate of the weighted average tax rate expected by Grupo Santander for the full financial year; 2. The impairment losses on certain assets – financial assets at fair value through other comprehensive income, financial assets at amortised cost, non-current assets held for sale, investments in subsidiaries, joint ventures and associates, tangible assets and intangible assets; 3. The assumptions used in the calculation of the post-employment benefit liabilities and commitments and other obligations; 4. The useful life of the tangible and intangible assets; 5. The measurement of goodwill impairment arising on consolidation; 6. The calculation of provisions and the consideration of contingent liabilities; 7. The fair value of certain unquoted assets and liabilities; 8. The recoverability of deferred tax assets; and 9. The fair value of the identifiable assets acquired and the liabilities assumed in business combinations in accordance with IFRS 3. To update the previous estimates, the Group's management has taken into account the current macroeconomic scenario and the situation of the war in Ukraine, as well as the challenges derived from the inflationary scenario, the recent turbulence in the world banking sector, mainly due to the bankruptcy of some regional banks in the United States, a specific case of a merger in Europe, which has contributed to generate greater uncertainty and volatility in the markets. The Group's management has evaluated in particular the uncertainties caused by the current environment in relation to credit, liquidity and market risks, taking into account the best available information, to estimate the impact on the credit portfolio's impairment provision, and in the debt instruments' interest rates and valuation. During the first six months ended 30 June 2023, there have been no additional significant changes in the estimates made at the end of 2022, other than those indicated in these interim financial statements.
Contingent assets and liabilities	Contingent assets and liabilitiesNote 2.o to Grupo Santander's consolidated annual accounts for the year ended 31 December 2022 includes information on the contingent assets and liabilities at that date. There were no significant changes in Grupo Santander's contingent assets and liabilities from 31 December 2022 to the date of formal preparation of these interim financial statements.

Shareholder remuneration syst_2

Shareholder remuneration system and earnings per share (Tables)	6 Months Ended
	Jun. 30, 2023
Earnings per share [abstract]
Schedule of shareholder remuneration	The cash remuneration paid by Banco Santander to its shareholders in the first six months of 2023 and 2022 was as follows: 30-06-2023 30-06-2022 % of par Euros per Amount % of par Euros per Amount Ordinary shares 11.90 % 0.0595 963 10.30 % 0.0515 869 Other shares (without vote, redeemable, etc.) — — — — — — Total remuneration paid 11.90 % 0.0595 963 10.30 % 0.0515 869 Dividend paid out of profit 11.90 % 0.0595 963 10.30 % 0.0515 869 Dividend paid with a charge to reserves or share premium — — — — — — Dividend in kind — — — — — — Flexible payment — — — — — —
Schedule of basic and diluted earnings per share	Basic earnings per share for the period are calculated by dividing the net profit attributable to Grupo Santander for the first six months adjusted by the after-tax amount relating to the remuneration of contingently convertible preference shares recognised in equity by the weighted average number of ordinary shares outstanding during the period, excluding the average number of treasury shares held in the period. Accordingly: 30-06-2023 30-06-2022 Profit attributable to the Parent (EUR million) 5,241 4,894 Remuneration of contingently convertible preferred securities (CCPS) (EUR million) (229) (292) 5,012 4,602 Of which: Profit or Loss from discontinued operations (non controlling interest net) (EUR million) — — Profit or Loss from continuing operations (CCPS net) (EUR million) 5,012 4,602 Weighted average number of shares outstanding 16,279,041,269 16,947,764,566 Basic earnings per share (euros) 0.31 0.27 Of which: from discontinued operations (euros) — — from continuing operations (euros) 0.31 0.27 ii. Diluted earnings per share Diluted earnings per share for the period are calculated by dividing the net profit attributable to Grupo Santander for the first six months adjusted by the after-tax amount relating to the remuneration of contingently convertible preference shares recognised in equity and of perpetual liabilities contingently amortisable in their case by the weighted average number of ordinary shares outstanding during the period, excluding the average number of treasury shares and adjusted for all the dilutive effects inherent to potential ordinary shares (share options, warrants and convertible debt instruments). Accordingly, diluted earnings per share were determined as follows: 30-06-2023 30-06-2022 Profit attributable to the Parent (EUR million) 5,241 4,894 Remuneration of contingently convertible preferred securities (CCPS) (EUR million) (229) (292) 5,012 4,602 Of which: Profit or Loss from discontinued operations (non controlling interest net) (EUR million) — — Profit or Loss from continuing operations (CCPS net) (EUR million) 5,012 4,602 Weighted average number of shares outstanding 16,279,041,269 16,947,764,566 Dilutive effect of options/receipt of shares 67,704,709 48,431,475 Adjusted number of shares 16,346,745,978 16,996,196,041 Diluted earnings per share (euros) 0.31 0.27 Of which: from discontinued operations (euros) — — from continuing operations (euros) 0.31 0.27

Remuneration and other benefi_2

Remuneration and other benefits paid to Banco Santander’s directors and senior managers (Tables)	6 Months Ended
	Jun. 30, 2023
Remuneration And Other Benefits [Abstract]
Schedule of total remuneration paid	Following is a summary of the most significant data on the remunerations and benefits for the first six months ended 30 June 2023 and 2022: Remuneration of members of the board of directors (1) EUR thousand 30-06-2023 30-06-2022 Members of the board of directors: (2) Remuneration concept Fixed salary remuneration of executive directors 3,136 2,859 Variable salary remuneration of executive directors — — Directors fees 628 525 Bylaw-stipulated emoluments (annual emolument) 2,113 1,890 Other 1,407 1,317 Sub-total 7,284 6,591 Transactions with shares and/or other financial instruments — — 7,284 6,591 (1) The Notes to the consolidated annual accounts for 2023 will contain detailed and complete information on the remuneration paid to all the directors, including executive directors. (2) Mr. Jose Antonio Álvarez stepped down as Vice chair and CEO Executive Director on 31 December 2022. Designated as Vice chair Non - executive Director 1 January 2023. Mr. Héctor Grisi was designated member of the board on 1 January 2023. Mr. Germán de la Fuente was designated member of the board on 1 April 2022. Mr. Glenn Hutchings was designated member of the board on 20 December 2022. Mr. Álvaro Cardoso de Souza stepped down as member of the board on 1 April 2022. Mr. Ramón Martín Chávez Márquez stepped down as member of the board on 1 July 2022. Mr. Sergio Agapito Lires Rial stepped down as member of the board on 31 December 2022. The table below includes the corresponding amounts related to remunerations of senior management at 30 June 2023 and 2022, excluding the executive directors: EUR thousand 30-06-2023 30-06-2022 Senior management (1) Total remuneration of senior management (2) 12,761 13,978 (1) Remunerations received during the first six months by members of the senior management who ceased in their functions by 30 June 2023, amounted to EUR 511 thousand. During the first six months of 2022, no member of senior management terminated their duties. (2) The number of members of Banco Santander's senior management, excluding executive director s, is 14 a s at 30 June 2023 ( 15 persons at 30 June 2022 ).
Schedule of other benefits of members of the board of directors	EUR thousand 30-06-2023 30-06-2022 Members of the board of directors Other benefits Advances — — Loans granted 144 133 Pension funds and plans: Endowments and/or contributions (1) 1,055 946 Pension funds and plans: Accumulated rights (2) 66,792 64,895 Life insurance premiums 563 769 Guarantees provided for directors — — (1) These correspond to the endowments and/or contributions made during the first six months of 2023 and 2022 in respect of retirement pensions, widowhood, orphanhood and permanent disability. (2) Corresponds to the rights accru ed by the directors in matters of pensions. Additionally, former members of the board had at 30 June 2023 and 30 June 2022 rights accrued for this concept for EUR 46,275 thousand and EUR 48,388 thousand, respectively.
Schedule of funds and pension plans of senior management	EUR thousand 30-06-2023 30-06-2022 Senior management (1) Pension funds: Endowments and / or contributions (2) 2,550 2,808 Pension funds: Accumulated rights (3) 55,451 56,222 (1) Contributions made during the first six months to members of the senior management who ceased in their functions by 30 June 2023, amounted to EUR 108 thousand. During the first six months of 2022, no member of senior management terminated their duties (2) Corresponds to the allocations and/or contributions made during the first six months of 2023 and 2022 as retirement pensions. (3) Corresponds to the rights accrued by members of senior man agement in the area of pensions. In addition, former members of senior management had at 30 June 2023 and 30 June 2022 rights accumulated for this same concept for EUR 90,401 thou sand and EUR 113,060 thousand, respectively.

Financial assets (Tables)

Financial assets (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure of financial assets [abstract]
Schedule of components of financial assets	The detail, by nature and category for measurement purposes, of Grupo Santander's financial assets, other than the balances relating to Cash, cash balances at central banks and other deposits on demand and Hedging derivatives, at 30 June 2023 and 31 December 2022 is as follows, presented by the nature and categories for valuation purposes: EUR million 30-06-2023 Financial Non-trading Financial Financial Financial Derivatives 67,613 Equity instruments 13,349 4,055 1,729 Debt instruments 55,823 888 3,089 76,010 91,559 Loans and advances 47,049 853 6,556 9,017 1,088,743 Central Banks 12,406 — — — 17,871 Credit institutions 23,592 1 626 303 52,375 Customers 11,051 852 5,930 8,714 1,018,497 Total 183,834 5,796 9,645 86,756 1,180,302 EUR million 31-12-2022 Financial Non-trading Financial Financial Financial Derivatives 67,002 Equity instruments 10,066 3,711 1,941 Debt instruments 41,403 1,134 2,542 75,083 73,554 Loans and advances 37,647 868 6,447 8,215 1,073,490 Central Banks 11,595 — — — 15,375 Credit institutions 16,502 — 673 — 46,518 Customers 9,550 868 5,774 8,215 1,011,597 Total 156,118 5,713 8,989 85,239 1,147,044
Disclosure of gross exposure by stages of impairment	Following is the gross exposure of financial assets subject to impairment stages at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Gross amount Gross amount Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Total Financial assets at fair value through other comprehensive income 84,841 160 97 85,098 83,118 184 24 83,326 Debt instruments 76,015 — 6 76,021 75,087 — 6 75,093 Loans and advances 8,826 160 91 9,077 8,031 184 18 8,233 Credit institutions 303 — — 303 — — — — Customers 8,523 160 91 8,774 8,031 184 18 8,233 Financial assets at amortised cost 1,097,848 71,743 33,395 1,202,986 1,070,025 66,588 32,997 1,169,610 Debt instruments 91,254 125 442 91,821 73,297 75 398 73,770 Loans and advances 1,006,594 71,618 32,953 1,111,165 996,728 66,513 32,599 1,095,840 Central Banks 17,871 — — 17,871 15,375 — — 15,375 Credit institutions 52,369 13 — 52,382 46,523 1 — 46,524 Customers 936,354 71,605 32,953 1,040,912 934,830 66,512 32,599 1,033,941 Total 1,182,689 71,903 33,492 1,288,084 1,153,143 66,772 33,021 1,252,936 30-06-2023 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 18,444 20,765 18,512 2,523 1,133 61,377 Of which: impaired 142 193 204 167 267 973 31-12-2022 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 17,877 20,617 20,225 3,294 1,387 63,400 Of which: impaired 132 192 220 181 339 1,064 At the end 30 June 2023 and 31 December 2022 the concentration of this portfolio was as follows: Loans: gross amount Million euros 30-06-2023 31-12-2022 1. Without mortgage guarantee 36 42 2. With mortgage guarantee 2,246 2,285 2.1 Completed buildings 951 1,138 2.1.1 Residential 528 674 2.1.2 Other 423 464 2.2 Buildings and other constructions under construction 1,273 1,110 2.2.1 Residential 1,216 1,103 2.2.2 Other 57 7 2.3 Land 22 37 2.3.1 Developed consolidated land 14 25 2.3.2 Other land 8 12 Total 2,282 2,327
Disclosure of reconciliation of changes in loss allowance and in gross carrying amount for financial instruments	The following is the movement that has taken place, during the first six months ended 30 June 2023 and 2022, in the balance of provisions that cover losses due to impairment of assets which comprise the heading balance of the financial assets at amortised cost: EUR million 30-06-2023 30-06-2022 Balance as at beginning of period 22,888 23,164 Impairment losses charged to income for the period 6,843 5,255 Of which: Impairment losses charged to income 11,225 9,720 Impairment losses reversed with a credit to income (4,382) (4,465) Perimeter change (37) — Write-off of impaired balances against recorded impairment allowance (6,831) (5,682) Exchange differences and other 492 937 Balance as at end of period 23,355 23,674 Of which, relating to: Impaired assets 14,271 13,707 Other assets 9,084 9,967 Of which: Individually calculated 2,858 2,719 Collectively calculated 20,497 20,955 Following is the movement of the loan loss provision broken down by impairment stage of loans and advances to customers recognised under 'Financial assets at amortised cost' as at 30 June 2023 and 30 June 2022: EUR million 30-06-2023 Stage 1 Stage 2 Stage 3 Total Impairment allowance as at beginning of period 3,611 5,124 13,931 22,666 Transfers between stages (454) 355 3,767 3,668 Variation due to credit risk 605 (377) 2,891 3,119 Write-offs — — (6,801) (6,801) Exchange differences and other 88 97 249 434 Carrying amount at end of period 3,850 5,199 14,037 23,086 EUR million 30-06-2022 Stage 1 Stage 2 Stage 3 Total Impairment allowance as at beginning of period 4,182 5,224 13,546 22,952 Transfers between stages (455) 381 2,618 2,544 Variation due to credit risk 473 (447) 2,695 2,721 Write-offs — — (5,682) (5,682) Exchange differences and other 249 324 332 905 Carrying amount at end of period 4,449 5,482 13,509 23,440
Disclosure of reconciliation of financial assets classified at amortised cost	The movement during the first six months ended 30 June 2023 and 2022, in the balance of financial assets classified at amortised cost and considered impaired by reason for the credit risk is as follows: EUR million 30-06-2023 30-06-2022 Balance as at beginning of period 33,269 31,848 Net additions 6,480 5,710 Written-off assets (6,831) (5,682) Perimeter Changes (45) — Exchange differences and other 773 850 Balance at end of period 33,646 32,726
Schedule of guarantees received for financial assets	Following is the breakdown of the value of the guarantees received to ensure the collection of the financial assets that comprise the heading of financial assets at amortized cost, distinguishing between real guarantees and other guarantees at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Real guarantees value 632,794 627,337 Of which: Impaired 12,028 11,846 Other guarantees value 93,967 96,645 Of which: Impaired 2,227 2,029 Total value of the guarantees received 726,761 723,982
Schedule of financial assets measured at other than fair value	Following is a comparison of the carrying amounts of Grupo Santander’s financial assets measured at other than fair value and their respective fair values at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Carrying amount Fair value Carrying amount Fair value Loans and advances 1,088,743 1,067,336 1,073,490 1,053,703 Debt instruments 91,559 89,085 73,554 70,373 ASSETS 1,180,302 1,156,421 1,147,044 1,124,076

Non-current assets held for s_2

Non-current assets held for sale (Tables)	6 Months Ended
	Jun. 30, 2023
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract]
Schedule of non-current assets classified as held for sale	The detail, by nature, of Grupo Santander’s non-current assets held for sale at 30 June 2023 and 31 December 2022 is as follows presented by nature: EUR million 30-06-2023 31-12-2022 Tangible assets 3,125 3,435 Of which: Foreclosed assets 2,912 3,101 Of which: Property assets in Spain 2,335 2,596 Other tangible assets held for sale 213 334 Other assets 26 18 3,151 3,453

Intangible assets (Tables)

Intangible assets (Tables)	6 Months Ended
	Jun. 30, 2023
Intangible assets and goodwill [abstract]
Schedule of goodwill based on cash-generating units	The detail of Intangible Assets - Goodwill at 30 June 2023 and 31 December 2022, based on the cash-generating units giving rise thereto, is as follows: EUR million 30-06-2023 31-12-2022 Banco Santander (Brazil) 3,756 3,503 SAM Investment Holdings Limited 1,444 1,444 Santander Consumer Germany 1,304 1,304 Santander Bank Polska 1,135 1,075 Santander Portugal 1,040 1,040 Santander US Auto 1,016 1,039 Santander España 998 998 Santander Holding USA (ex. Auto) 824 844 Santander UK 619 599 Banco Santander - Chile 570 548 Grupo Financiero Santander (Mexico) 522 469 Ebury Partners 308 298 Santander Consumer Nordics 199 215 Other entities 391 365 Total Goodwill 14,126 13,741

Financial liabilities (Tables)

Financial liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure of financial liabilities [abstract]
Schedule of components of financial liabilities other than hedging derivatives	The following is a breakdown of Grupo Santander's financial liabilities, other than the balances corresponding to the Derivatives - hedge accounting heading, as of 30 June 2023 and 31 December 2022, presented by nature and categories for valuation purposes: EUR million 30-06-2023 31-12-2022 Financial Financial Financial Financial Financial Financial Derivatives 62,259 64,891 Short Positions 22,352 22,515 Deposits 50,277 30,536 1,115,908 27,779 34,841 1,111,887 Central banks 16,216 829 58,644 5,757 1,740 76,952 Credit institutions 14,140 2,410 90,704 9,796 1,958 68,582 Customer 19,921 27,297 966,560 12,226 31,143 966,353 Debt instruments — 5,684 285,869 — 5,427 274,912 Other financial liabilities — — 45,105 — — 37,059 Total 134,888 36,220 1,446,882 115,185 40,268 1,423,858 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b)
Disclosure of composition and reconciliation of debt instruments	The detail of the balance of debt instruments issued according to their nature is: EUR million 30-06-2023 31-12-2022 Bonds and debentures outstanding 217,735 211,597 Subordinated 26,864 25,717 Promissory notes and other securities 46,954 43,025 Total debt instruments issued 291,553 280,339 The detail, at 30 June 2023 and 2022, of the outstanding balance of the debt instruments, excluding promissory notes, which at these dates had been issued by Banco Santander or any other Group entity is disclosed below. Also included is the detail of the changes in this balance in the first six months of 2023 and 2022: EUR million 30-06-2023 Opening Perimeter Issuances or placements Repurchases or Exchange Closing Bonds and debentures outstanding 211,597 (1,467) 34,438 (28,534) 1,701 217,735 Subordinated 25,717 — 1,500 (36) (317) 26,864 Bonds and debentures outstanding and subordinated liabilities issued 237,314 (1,467) 35,938 (28,570) 1,384 244,599 EUR million 30-06-2022 Opening Perimeter Issuances or placements Repurchases or Exchange Closing Bonds and debentures outstanding 194,362 — 33,800 (27,376) 3,837 204,623 Subordinated 25,938 — 113 (853) 635 25,833 Bonds and debentures outstanding and subordinated liabilities issued 220,300 — 33,913 (28,229) 4,472 230,456
Schedule of financial liabilities measured at other than fair value	Following is a comparison between the value by which Grupo Santander’s financial liabilities are recorded that are measured using criteria other than fair value and their corresponding fair value at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Carrying amount Fair value Carrying amount Fair value Deposits 1,115,908 1,114,308 1,111,887 1,108,918 Debt instruments 285,869 276,186 274,912 263,191 Liabilities 1,401,777 1,390,494 1,386,799 1,372,109

Provisions (Tables)

Provisions (Tables)	6 Months Ended
	Jun. 30, 2023
Provisions [abstract]
Schedule of other provisions by type of provision	Set forth below is the detail, by type of provision, of the balances at 30 June 2023 and at 31 December 2022 of Provisions for taxes and other legal contingencies and Other provisions. The types of provision were determined by grouping together items of a similar nature: EUR million 30-06-2023 31-12-2022 Provisions for taxes 741 679 Provisions for employment-related proceedings (Brazil) 475 301 Provisions for other legal proceedings 1,342 1,094 Provision for customer remediation 385 349 Provision for restructuring 659 641 Other 888 1,009 4,490 4,073

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2023
Equity [abstract]
Schedule of other comprehensive income components	Breakdown of other comprehensive income - Items not reclassified to profit or loss and Items that may be reclassified to profit or loss EUR million 30-06-2023 31-12-2022 Other comprehensive income accumulated (33,789) (35,628) Items not reclassified to profit or loss (4,956) (4,635) Actuarial gains or losses on defined benefit pension plans (4,036) (3,945) Non-current assets held for sale — — Share in other income and expenses recognised in investments, joint ventures and associates 3 10 Other valuation adjustments — — Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income (859) (672) Inefficacy of fair value hedges of equity instruments measured at fair value with changes — — Changes in the fair value of equity instruments measured at fair value with changes 252 293 Changes in the fair value of equity instruments measured at fair value with changes (252) (293) Changes in the fair value of financial liabilities measured at fair value through profit or loss (64) (28) Items that may be reclassified to profit or loss (28,833) (30,993) Hedge of net investments in foreign operations (effective portion) (8,322) (6,750) Exchange differences (17,580) (20,420) Hedging derivatives (effective portion) (2,118) (2,437) Changes in the fair value of debt instruments measured at fair value with changes in other comprehensive income (563) (1,002) Hedging instruments (items not designated) — — Non-current assets held for sale — — Share in other income and expenses recognised in investments, joint ventures and associates (250) (384)
Schedule of changes in fair value of equity instruments that will not be reclassified	Below is a breakdown of the composition of the balance as of 30 June 2023 and 31 December 2022 under 'Other comprehensive income - Items not reclassified to profit or loss - Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income' depending on the geographical origin of the issuer: EUR million 30-06-2023 31-12-2022 Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Equity instruments Domestic Spain 31 (1,172) (1,141) 251 30 (926) (896) 500 International Rest of Europe 110 (67) 43 271 84 (60) 24 225 United States 18 — 18 24 15 — 15 29 Latin America and rest 309 (88) 221 1,183 244 (59) 185 1,187 468 (1,327) (859) 1,729 373 (1,045) (672) 1,941 Of which: Listed 311 (138) 173 1,191 246 (113) 133 1,200 Unlisted 157 (1,189) (1,032) 538 127 (932) (805) 741
Schedule of other comprehensive income, that may be reclassified to profit or loss, by type of instrument and geographical origin of the issuer	Below is a breakdown of the composition of the balance as of 30 June 2023 and 31 December 2022 under Other comprehensive income - Items that may be reclassified to profit or loss - Changes in the fair value of debt instruments measured at fair value through other comprehensive income depending on the type of instrument and the geographical origin of the issuer: EUR million 30-06-2023 31-12-2022 Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Revaluation gains Revaluation losses Net revaluation gains/(losses) Fair value Debt instruments Issued by public Public-sector Spain 110 (1) 109 9,544 26 (1) 25 9,312 Rest of Europe 355 (140) 215 18,607 268 (199) 69 17,593 Latin America and rest of the world 177 (843) (666) 40,351 196 (937) (741) 40,873 Issued by Private-sector Spain 82 (3) 79 6,277 — (24) (24) 5,727 Rest of Europe 12 (56) (44) 5,157 11 (68) (57) 5,203 Latin America and rest of the world 27 (283) (256) 5,091 16 (290) (274) 4,590 763 (1,326) (563) 85,027 517 (1,519) (1,002) 83,298

Segment information (Primary _2

Segment information (Primary segment) (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure of operating segments [abstract]
Disclosure of reconciliation between adjusted profit and statutory profit	Following is the reconciliation between the adjusted profit and the statutory profit corresponding to the first six months ended 30 June 2023 and 2022: EUR million Revenue from ordinary activities Profit before taxes Profit Segment 30-06-2023 30-06-2022 30-06-2023 30-06-2022 30-06-2023 30-06-2022 Europe 19,391 13,649 3,888 2,693 2,536 1,839 North America 13,966 8,154 1,739 2,061 1,346 1,578 South America 20,461 17,613 2,376 3,165 1,458 1,946 Digital Consumer Bank 4,761 3,395 928 1,010 521 572 Corporate Centre 1,121 173 (602) (1,014) (620) (1,041) Underlying Profit 59,700 42,984 8,329 7,915 5,241 4,894 Adjustments — — (239) — — — Statutory Profit 59,700 42,984 8,090 7,915 5,241 4,894

Related parties (Tables)

Related parties (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure of transactions between related parties [abstract]
Schedule of related party transactions	Related party transactions were made on terms equivalent to those that prevail in arm’s-length transactions or, when this was not the case, the related compensation in kind was recognised: EUR million 30-06-2023 Expenses and income Significant shareholders Directors and executives Group companies or entities Other related parties Total Expenses Finance costs — — 79 — 79 Leases — — — — — Services received — — — — — Purchases of stocks — — — — — Other expenses — — 57 — 57 — — 136 — 136 Income Finance income — — 188 3 191 Dividends received — — — — — Services rendered — — — — — Sale of stocks — — — — — Other income — — 709 1 710 — — 897 4 901 EUR million 30-06-2023 Other transactions Significant shareholders Directors and executives Group companies or entities Other related parties Total Financing agreements: loans and capital contributions (lender) — 2 376 (199) 179 Financing agreements: loans and capital contributions (borrower) — — (29) 7 (22) Guarantees provided — — — 680 680 Guarantees received — — — — — Commitments acquired — — 51 3 54 Dividends and other distributed profit — 1 — 10 11 Other transactions — — 36 — 36 EUR million 30-06-2023 Balance closing period Significant shareholders Directors and executives Group companies or entities Other related parties Total Debt balances: Customers and commercial debtors — — — — — Loans and credits granted — 13 9,687 256 9,956 Other collection rights — — 969 — 969 — 13 10,656 256 10,925 Credit balances: Suppliers and creditors granted — — — — — Loans and credits received — 21 3,210 115 3,346 Other payment obligations — — 358 — 358 — 21 3,568 115 3,704 EUR million 30-06-2022 Expenses and income Significant shareholders Directors and executives Group companies or entities Other related parties Total Expenses Finance costs — — 16 — 16 Leases — — — — — Services received — — — — — Purchases of stocks — — — — — Other expenses — — 197 — 197 — — 213 — 213 Income Finance income — — 71 — 71 Dividends received — — — — — Services rendered — — — — — Sale of stocks — — — — — Other income — — 683 1 684 — — 754 1 755 EUR million 30-06-2022 Other transactions Significant shareholders Directors and executives Group companies or entities Other related parties Total Financing agreements: loans and capital contributions (lender) — — 715 26 741 Financing agreements: loans and capital contributions (borrower) — 9 362 40 411 Guarantees provided — — — — — Guarantees received — — — — — Commitments acquired — — (12) (2) (14) Dividends and other distributed profit — 1 — 9 10 Other transactions — — (106) — (106) EUR million 31-12-2022 Balance closing period Significant shareholders Directors and executives Group companies or entities Other related parties Total Debt balances: Customers and commercial debtors — — — — — Loans and credits granted — 13 9,311 455 9,779 Other collection rights — — 946 — 946 — 13 10,257 455 10,725 Credit balances: Suppliers and creditors granted — — — — — Loans and credits received — 22 3,239 109 3,370 Other payment obligations — — 372 — 372 — 22 3,611 109 3,742

Off-balance-sheet exposures (Ta

Off-balance-sheet exposures (Tables)	6 Months Ended
	Jun. 30, 2023
Off-Balance-Sheet Exposures
Schedule of contingent commitments	EUR million 30-06-2023 31-12-2022 Loan commitments granted 283,903 274,075 Of which impaired 509 653 Financial guarantees granted 14,401 12,856 Of which impaired 538 521 Bank sureties 14,355 12,813 Credit derivatives sold 46 43 Other commitments granted 113,266 92,672 Of which impaired 607 608 Other granted guarantees 53,651 50,508 Other 59,615 42,164

Average headcount and number _2

Average headcount and number of branches (Tables)	6 Months Ended
	Jun. 30, 2023
Average Headcount And Number Of Branches
Schedule of average number of employees	The average number of employees at Banco Santander and Grupo Santander, by gender, in the first six months ended 30 June 2023 and 2022 is as follows: Average headcount Bank Group 30-06-2023 30-06-2022 30-06-2023 30-06-2022 Men 12,260 11,867 97,353 90,747 Women 11,732 11,355 112,663 109,055 23,992 23,222 210,016 199,802
Schedule of number of branches	The number of branches at 30 June 2023 and 31 December 2022 is as follow: Number of branches Group 30-06-2023 31-12-2022 Spain 1,936 1,966 Group 6,887 7,053 8,823 9,019

Other disclosures (Tables)

Other disclosures (Tables)	6 Months Ended
	Jun. 30, 2023
Other Disclosures
Summary of fair values of financial assets and liabilities	The following table shows a summary of the fair values, at 30 June 2023 and 31 December 2022, of the financial assets and liabilities indicated below, classified on the basis of the various measurement methods used by Grupo Santander to determine their fair value: EUR million 30-06-2023 31-12-2022 Published price quotations in active markets (Level 1) Internal models (Levels 2 and 3) Total Published price quotations in active markets (Level 1) Internal models (Levels 2 and 3) Total Financial assets held for trading 61,089 122,745 183,834 45,014 111,104 156,118 Non-trading financial assets mandatorily at fair value through profit or loss 1,738 4,058 5,796 1,800 3,913 5,713 Financial assets at fair value through profit and loss 2,491 7,154 9,645 1,976 7,013 8,989 Financial assets at fair value through other comprehensive income 65,596 21,160 86,756 64,216 21,023 85,239 Hedging derivatives (assets) — 7,532 7,532 — 8,069 8,069 Financial liabilities held for trading 15,195 119,693 134,888 16,237 98,948 115,185 Financial liabilities designated at fair value through profit or loss (*) 147 36,073 36,220 212 40,056 40,268 Hedging derivatives (liabilities) — 10,288 10,288 — 9,228 9,228 Liabilities under insurance contracts (*) — 17,584 17,584 — 16,426 16,426 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b).
Schedule of financial instruments at fair value whose measurement was based on internal models (Levels 2 and 3)	Set forth below are the financial instruments at fair value whose measurement was based on internal models (levels 2 and 3) at 30 June 2023 and 31 December 2022: EUR million EUR million Fair values calculated using internal models at 30-06-2023 (*) Fair values calculated using internal models at 31-12-2022 (*) Level 2 Level 3 Level 2 Level 3 Valuation techniques Main inputs ASSETS 152,661 9,988 142,832 8,290 Financial assets held for trading 121,705 1,040 110,721 383 Central banks (**) 12,405 — 11,595 — Present value method Yield curves, FX market prices Credit institutions (**) 23,592 — 16,502 — Present value method Yield curves, FX market prices Customers (**) 10,906 145 9,550 — Present value method Yield curves, FX market prices Debt instruments and equity instruments 7,804 414 6,537 43 Present value method Yield curves, FX market prices Derivatives 66,998 481 66,537 340 Swaps 52,475 217 54,367 139 Present value method, Gaussian Copula Yield curves, FX market prices, HPI, Basis, Liquidity Exchange rate options 1,229 3 916 4 Black-Scholes Model Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate options 4,083 29 2,681 39 Black's Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate futures 29 — 113 — Present value method Yield curves, FX market prices Index and securities options 339 85 354 48 Black’s Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Liquidity Other 8,843 147 8,106 110 Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX and EQ market prices, Dividends, Liquidity, Dividends, Correlation, HPI, Credit, Others Hedging derivatives 7,531 1 8,069 — Swaps 6,828 1 6,687 — Present value method Yield curves, FX market prices, Basis Interest rate options 2 — 2 — Black Model Yield curves, FX market prices, Volatility surfaces Other 701 — 1,380 — Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX market prices, Credit, Liquidity, Others Non-trading financial assets mandatorily at fair value through profit or loss 2,146 1,912 2,080 1,833 Equity instruments 970 1,347 643 1,269 Present value method Yield curves, Market price, Dividends and Others Debt instruments 551 337 809 325 Present value method Yield curves Loans and receivables 625 228 628 239 Present value method, swap asset model and CDS Yield curves and Credit curves Financial assets designated at fair value through profit or loss 6,737 417 6,586 427 Credit institutions 626 — 673 — Present value method Yield curves, FX market prices Customers (***) 5,925 5 5,769 5 Present value method Yield curves, FX market prices, HPI Debt instruments 186 412 144 422 Present value method Yield curves, FX market prices Financial assets at fair value through other comprehensive income 14,542 6,618 15,376 5,647 Equity instruments 11 496 9 700 Present value method Yield curves,Market price, Dividends and Others Debt instruments 11,373 263 11,869 229 Present value method Yield curves, FX market prices Loans and receivables 3,158 5,859 3,498 4,718 Present value method Yield curves, FX market prices and Credit curves LIABILITIES 182,818 820 163,733 925 Financial liabilities held for trading 119,291 402 98,533 415 Central banks (**) 16,216 — 5,759 — Present value method FX market prices, Yield curves Credit institutions (**) 14,140 — 9,796 — Present value method FX market prices, Yield curves Customers 19,921 — 12,226 — Present value method FX market prices, Yield curves Derivatives 61,567 402 64,147 415 Swaps 47,317 133 51,191 235 Present value method, Gaussian Copula Yield curves, FX market prices, Basis, Liquidity, HPI Exchange rate options 1,182 — 769 — Black Model, multifactorial advanced models interest rate Yield curves, Volatility surfaces, FX market prices, Liquidity Interest rate options 4,524 22 3,268 19 Black-Scholes Model Yield curves, Volatility surfaces, FX market prices Index and securities options 599 63 591 42 Black-Scholes Model Yield curves, FX market prices, Liquidity Interest rate and equity futures 32 — 807 — Present value method Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Correlation, Liquidity, HPI Other 7,913 184 7,521 119 Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX & EQ market prices, Dividends, Correlation, HPI, Credit, Others Short positions 7,447 — 6,605 — Present value method Yield curves ,FX market prices, Equity Hedging derivatives 10,235 53 9,214 14 Swaps 8,598 53 8,142 14 Present value method Yield curves ,FX market prices, Basis Other 1,637 — 1,072 — Present value method, Advanced stochastic volatility models and others Yield curves, Volatility surfaces, FX market prices, Credit, Liquidity and others Financial liabilities designated at fair value through profit or loss (****) 36,073 — 39,905 151 Present value method Yield curves, FX market prices Liabilities under insurance contracts (****) 17,219 365 16,081 345 Present Value Method with actuarial techniques Mortality tables and yield curves (*) The internal models of level 2 implement figures based on the parameters observed in the market, while level 3 internal models uses significant inputs that are not observable in market data. (**) Includes mainly short-term loans/deposits and repurchase/reverse repurchase agreements with corporate customers (mainly brokerage and investment companies). (***) Includes mainly structured loans to corporate clients. (****) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b).
Schedule of effect on fair value of financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation	The table below shows the effect, at 30 June 2023 and 31 December 2022, on the fair value of the main financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation. This effect was determined by applying the probable valuation ranges of the main unobservable inputs detailed in the following table: 30-06-2023 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Financial assets held for trading Loans and advances to customers Repos/Reverse repos Others Long-term repo spread n.a. n.a. (0.04) 0.00 Debt securities Corporate debt Discounted Cash Flows Credit spread 0% - 10% 5.04% (1.51) 1.54 Corporate debt Price based Market price 85% - 115% 100.00% 0.00 0.00 Government debt Discounted Cash Flows Discount curve 0% - 8% 3.93% (8.25) 7.97 Derivatives CCS Discounted Cash Flows Interest rate (1.4)% - 1.4% 0.00% 0.00 0.00 CCS Forward estimation Interest rate (6)bp - 6bp 2.32bp (0.04) 0.07 EQ Options EQ option pricing model Volatility 0% - 90% 61.30% (0.38) 0.84 EQ Options Local volatility Volatility 10% - 90% 50.00% (1.91) 1.91 FRAs Asset Swap model Interest rate 0% - 6% 2.71% (0.94) 0.78 Inflation Derivatives Asset Swap model Inflation Swap Rate 0% - 10% 3.41% (0.29) 0.15 IR Options IR option pricing model Volatility 0% - 60% 35.82% (0.26) 0.38 IRS Asset Swap model Interest rate 0% - 15% 9.20% (0.05) 0.08 IRS Discounted Cash Flows Credit spread 1.1% - 5.8% 3.67% (1.80) 1.95 IRS Discounted Cash Flows Swap rate 8.2% - 8.7% 8.44% (0.54) 0.53 IRS Forward estimation Interest rate (6)bp - 6bp 0.12bp (0.04) 0.05 IRS Others Others 5% - n.a n.a (0.69) 0.28 IRS Prepayment modelling Prepayment rate 3.1% - 5.7% 4.33% 0.00 0.16 Others Forward estimation Price 0% - 2% 0.62% (0.46) 0.20 Property derivatives Option pricing model Growth rate (5)% - 5% 0.00% (4.08) 4.08 Financial assets designated at fair value through profit or loss Loans and advances to customers Loans Discounted Cash Flows Credit spreads 0.1% - 2% 1.05% (0.15) 0.15 Mortgage portfolio Black Scholes model Growth rate (5)% - 5% 0.00% (0.47) 0.47 Repos/Reverse repos Others Repo curve 4.8bp - 6.7bp 5.63bp 0.00 0.00 30-06-2023 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Debt securities Other debt securities Others Inflation Swap Rate 0% - 8% 3.88% (4.51) 4.24 Non-trading financial assets mandatorily at fair value through profit or loss Debt securities Property securities Probability weighting Growth rate 5% - 5% 0% (0.47) 0.47 Equity instruments Equities Price Based Price 90% - 110% 100% (134.66) 134.66 Financial assets at fair value through other comprehensive income Loans and advances to customers Loans Discounted Cash Flows Credit spread n.a n.a (22.17) 0.00 Loans Discounted Cash Flows Interest rate curve 8% - 9% 8.60% (0.86) 0.86 Loans Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (22.80) 22.80 Loans Forward estimation Credit spread 1.68% - 2.7% 1.68% (0.68) 0.00 Debt securities Corporate debt Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (0.52) 0.52 Government debt Discounted Cash Flows Interest rate (1.9)% - 0.1% (0.87)% (0.01) 0.01 Equity instruments Equities Price Based Price 90% - 110% 100.00% (49.63) 49.63 Financial liabilities held for trading Derivatives Cap&Floor Volatility option model Volatility 10% - 90% 32.37% (0.77) 0.30 31-12-2022 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Financial assets held for trading Debt securities Corporate debt Discounted Cash Flows Credit spread 0% - 20% 10.07% (1.38) 1.40 Corporate debt Price based Market price 85% - 115% 100.00% — — Government debt Discounted Cash Flows Discount curve 0% - 10% 4.92% (8.34) 8.07 Derivatives CCS Discounted Cash Flows Interest rate (0.70)% - 0.70% 0.00% — — CCS Forward estimation Interest rate (4)bp - 4bp 0.42bp (0.06) 0.07 CDS Discounted Cash flows Credit Spread 14.90bp - 42.10bp 21.99bp (0.05) 0.02 EQ Options EQ option pricing model Volatility 0% - 90% 61.30% (0.23) 0.48 EQ Options Local volatility Volatility 10% - 90% 50.00% (1.05) 1.05 FRAs Asset Swap model Interest rate 0% - 6% 2.71% (1.16) 0.95 Fx Swap Others Others n.a. n.a (1.37) 1.37 Inflation Derivatives Asset Swap model Inflation Swap Rate 0% - 10% 3.41% (0.21) 0.11 Inflation Derivatives Volatility option model Volatility 0% - 40% 17.37% (0.14) 0.11 IR Options IR option pricing model Volatility 0% - 60% 35.82% (0.30) 0.44 IRS Asset Swap model Interest rate 0% - 15% 9.20% (0.05) 0.08 IRS Discounted Cash Flows Credit spread 1.25% - 6.29% 3.89% (2.25) 2.47 IRS Discounted Cash Flows Swap rate 8.6% - 9.1% 8.84% (0.02) 0.03 IRS Forward estimation Interest rate (6)pb - 6pb 0.13bp (0.04) 0.04 IRS Others Others 5% - n.a n.a (11.58) — IRS Prepayment modelling Prepayment rate 2.5% - 6.2% 4.17% (0.06) 0.05 Others Forward estimation Price 0% - 2% 0.62% (0.53) 0.24 Property derivatives Option pricing model Growth rate (5)% - 5% 0.00% (5.75) 5.75 Financial assets designated at fair value through profit or loss Loans and advances to customers Loans Discounted Cash Flows Credit spreads 0.1% - 2% 1.05% (0.18) 0.18 Mortgage portfolio Black Scholes model Growth rate (5)% - 5% 0.00% (0.79) 0.79 31-12-2022 Portfolio/Instrument Valuation technique Main unobservable inputs Range Weighted average Impacts (EUR million) (Level 3) Unfavourable scenario Favourable scenario Debt securities Other debt securities Others Inflation Swap Rate 0% - 10% 4.74% (4.25) 3.83 Non-trading financial assets mandatorily at fair value through profit or loss Debt securities Corporate debt Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0.01bp (0.33) 0.33 Corporate debt Probability weighting Growth rate (5)% - 5% 0.00% (0.68) 0.68 Equity instruments Equities Price Based Price 90% - 110% 100.00% (126.87) 126.87 Financial assets at fair value through other comprehensive income Loans and advances to customers Loans Discounted Cash Flows Credit spread n.a. n.a (24.10) — Loans Discounted Cash Flows Interest rate curve 0.8% - 1.0% 0.88% (0.08) 0.08 Loans Discounted Cash Flows Margin of a reference portfolio (1)bp - 1bp 0bp (17.51) 17.51 Loans Forward estimation Credit spread 2.56% - 3.40% 2.56% (0.49) — Debt securities Government debt Discounted Cash Flows Interest rate (0.4)% - 1.6% 0.63% (0.01) 0.01 Equity instruments Equities Price Based Price 90% - 110% 100.00% (70.04) 70.04 Financial liabilities held for trading Derivatives Cap&Floor Volatility option model Volatility 10% - 90% 40.73% (0.29) 0.18 Financial liabilities designated at fair value through profit or loss Loans and advances to customers Repos/Reverse repos Others Long-term repo spread n.a. n.a. (0.13) —
Schedule of changes in financial instruments classified as Level 3	Lastly, the changes in the financial instruments classified as level 3 in the first six months of 2023 and 2022 were as follows: 01-01-2023 Changes 30-06-2023 EUR million Fair value calculated using internal models (Level 3) Purchases/Settlements Sales/Amortisation Changes in fair value recognized in profit or loss Changes in fair value recognised in equity Level reclassifications Other Fair value calculated using internal models (Level 3) Financial assets held for trading 383 198 (72) 77 — 303 151 1,040 Customers — — — (1) — — 146 145 Debt instruments 42 52 (4) 1 — 316 6 413 Equity instruments 1 — — — — — — 1 Trading derivatives 340 146 (68) 77 — (13) (1) 481 Swaps 139 — (3) 93 — — (12) 217 Exchange rate options 4 — — (1) — — — 3 Interest rate options 39 — — (10) — — — 29 Index and securities options 48 52 — 3 — (23) 5 85 Other 110 94 (65) (8) — 10 6 147 Hedging derivatives (Assets) — — — — — 1 — 1 Swaps — — — — — 1 — 1 Financial assets designated at fair value through profit or loss 427 — — (40) — — 30 417 Loans and advances to customers 5 — — — — — — 5 Debt instruments 422 — — (40) — — 30 412 Non-trading financial assets mandatorily at fair value through profit or loss 1,833 163 (116) 48 — — (16) 1,912 Loans and advances to customers 239 59 (63) (16) — — 9 228 Debt instruments 325 32 (25) 3 — — 2 337 Equity instruments 1,269 72 (28) 61 — — (27) 1,347 Financial assets at fair value through other comprehensive income 5,647 4,197 (3,595) — (222) 505 86 6,618 Loans and advances to customers 4,718 4,196 (3,590) — 23 473 39 5,859 Debt instruments 229 — (3) — (1) 32 6 263 Equity instruments 700 1 (2) — (244) — 41 496 TOTAL ASSETS 8,290 4,558 (3,783) 85 (222) 809 251 9,988 Financial liabilities held for trading 415 304 (101) (91) — (118) (7) 402 Trading derivatives 415 304 (101) (91) — (118) (7) 402 Swaps 235 104 (70) (25) — (97) (14) 133 Exchange rate options — 24 (24) — — — — — Interest rate options 19 7 (1) (3) — — — 22 Index and securities options 42 38 (6) 3 — (21) 7 63 Others 119 131 — (66) — — — 184 Hedging derivatives (Liabilities) 14 — — 3 — 36 — 53 Swaps 14 — — 3 — 36 — 53 Financial liabilities designated at fair value through profit or loss (*) 151 — (5) 1 — — (147) — Liabilities covered by insurance and reinsurance contracts (*) 345 — — (6) — — 26 365 TOTAL LIABILITIES 925 304 (106) (93) — (82) (128) 820 (*) See impact of IFRS 17 as at 31 December 2022 (see Note 1.b). 01-01-2022 Changes 30-06-2022 EUR million Fair value calculated using internal models (Level 3) Purchases/Settlements Sales/Amortisation Changes in fair value recognized in profit or loss Changes in fair value recognised in equity Level reclassifications Other Fair value calculated using internal models (Level 3) Financial assets held for trading 537 29 (9) (52) — (2) 14 517 Debt instruments 22 — — 1 — — 5 28 Equity instruments 2 — — (1) — — — 1 Trading derivatives 513 29 (9) (52) — (2) 9 488 Swaps 224 — — 5 — — (13) 216 Exchange rate options 12 — (9) 11 — — (1) 13 Interest rate options 182 — — (98) — (1) — 83 Index and securities options 41 — — 1 — — (40) 2 Other 54 29 — 29 — (1) 63 174 Financial assets designated at fair value through profit or loss 418 — (3) 4 — — 75 494 Credit institutions — — — — — — — — Loans and advances to customers 18 — (3) (2) — — — 13 Debt instruments 400 — — 6 — — 75 481 Non-trading financial assets mandatorily at fair value through profit or loss 1,865 112 (218) 110 — (29) 105 1,945 Loans and advances to customers 268 20 (67) 40 — — 58 319 Debt instruments 366 — (25) (3) — (29) 2 311 Equity instruments 1,231 92 (126) 73 — — 45 1,315 Financial assets at fair value through other comprehensive income 4,847 4,962 (5,187) — (191) 205 69 4,705 Loans and advances to customers 3,880 4,960 (5,177) — (17) 137 5 3,788 Debt instruments 146 — (1) — 9 — 63 217 Equity instruments 821 2 (9) — (183) 68 1 700 TOTAL ASSETS 7,667 5,103 (5,417) 62 (191) 174 263 7,661 Financial liabilities held for trading 160 84 (61) 42 — (14) — 211 Trading derivatives 160 84 (61) 42 — (14) — 211 Swaps 44 15 (5) 80 — — (13) 121 Exchange rate options 7 6 (14) 1 — — — — Interest rate options 26 42 (20) (16) — — — 32 Index and securities options 67 — (2) — — — (65) — Interest rate and equity futures — — — — — — — — Others 16 21 (20) (23) — (14) 78 58 Financial liabilities designated at fair value through profit or loss (*) 151 — (2) 1 — — — 150 Liabilities covered by insurance and reinsurance contracts (*) 318 — (97) — — — 48 269 TOTAL LIABILITIES 629 84 (160) 43 — (14) 48 630
Disclosure of quantitative data about entity's exposure to risk	30-06-2023 Total Of which: impaired Without real guarantee With real guarantee Without real guarantee With real guarantee Maximum amount of the actual collateral that can be considered Maximum amount of the actual collateral that can be considered Amounts in million euros, except number of transactions in units Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Credit entities — — — — — — — — — — — — — — Public sector 10,578 364 36 5 2 — 3 9 3 9 — — — 3 Other financial institutions and: individual shareholder 1,197 168 1,034 347 72 129 74 622 69 660 158 19 48 58 Non financial institutions and individual shareholder 304,058 8,550 60,027 7,652 4,377 1,750 3,504 160,329 3,050 39,771 4,260 2,371 861 3,010 Of which: Financing for constructions and property development 16,476 138 2,111 528 421 37 169 9,867 88 1,281 260 194 15 145 Other warehouses 5,782,449 6,877 513,622 9,589 4,807 3,741 4,637 3,098,609 3,020 267,646 4,492 1,887 1,805 3,441 Total 6,098,282 15,959 574,719 17,593 9,258 5,620 8,218 3,259,569 6,142 308,086 8,910 4,277 2,714 6,512 Financing classified as non-current assets and disposable groups of items that have been classified as held for sale — — — — — — — — — — — — — — 31-12-2022 Total Of which: impaired Without real guarantee With real guarantee Without real guarantee With real guarantee Maximum amount of the actual collateral that can be considered Maximum amount of the actual collateral that can be considered Amounts in million euros, except number of transactions in units Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Number of transactions Gross amount Number of operations Gross amount Mortgage guarantee Other guarantees Impairment of accumulated value or accumulated losses in fair value due to credit risk Credit entities — — — — — — — — — — — — — — Public sector 6,679 227 31 7 2 — 6 7 2 13 5 2 — 5 Other financial institutions and: individual shareholder 1,210 321 785 339 88 86 61 641 9 620 135 22 6 55 Non financial institutions and individual shareholder 312,934 9,578 60,003 8,419 4,790 1,834 3,912 174,300 3,178 39,479 4,890 2,741 886 3,439 Of which: Financing for constructions and property development 15,578 125 1,890 570 423 48 208 10,325 78 1,255 335 213 33 188 Other warehouses 5,878,455 5,790 492,232 9,492 4,835 3,502 4,287 3,735,412 2,911 246,751 4,055 1,917 910 3,122 Total 6,199,278 15,916 553,051 18,257 9,715 5,422 8,266 3,910,360 6,100 286,863 9,085 4,682 1,802 6,621 Financing classified as non-current assets and disposable groups of items that have been classified as held for sale — — — — — — — — — — — — — — Home purchase loans granted to families in Spain on 30 June 2023 amounted to EUR 61,606 million (EUR 63,688 million at 31 December 2022). Of which mortgage guarantees are 99.63%: Million euros 30-06-2023 31-12-2022 Gross Amount Of which: impaired Gross Amount Of which: impaired Home purchase loans to families 61,606 987 63,688 1,088 - Without mortgage guarantee 229 14 288 24 - With mortgage guarantee 61,377 973 63,400 1,064 At 30 June 2022 and 31 December 2022 the financing amount related to construction and real estate business in Spain amounted to EUR 2,246 million and EUR 2,283 million net of allowances, respectively. 30-06-2023 Million euros Gross amount Excess of gross exposure over maximum recoverable amount of effective collateral Specific allowance Financing for construction and property development recognised by the Group's credit institutions (including land) (business in Spain) 2,282 209 36 Of which: watchlist/ impaired 75 8 26 Memorandum items: Written-off assets 376 31-12-2022 Million euros Gross amount Excess of gross exposure over maximum recoverable amount of effective collateral Specific allowance Financing for construction and property development recognised by the Group's credit institutions (including land) (business in Spain) 2,327 211 44 Of which: watchlist/ impaired 94 21 33 Memorandum items: Written-off assets 487 30-06-2023 31-12-2022 Million euros Carrying amount Memorandum items: Total loans and advances to customers excluding the public sector (business in Spain) (book value) 243,814 250,702 Total consolidated assets (Total business) (book value) 1,780,493 1,734,659 Impairment losses and provision for exposure classified as normal (business in Spain) 1,247 1,311 The following table shows the breakdown at 30 June 2023 and 31 December 2022 of the foreclosed assets for the Spanish business: 30-06-2023 Million euros Gross carrying amount Valuation Adjustments Of which: Impairment losses since time of the foreclosure Carrying amount Property assets arising from financing provided to construction and property development companies 5,241 2,941 2,162 2,300 Of which: Completed Buildings 1,210 630 522 580 Residential 262 126 102 136 Other 948 504 420 444 Buildings under construction 92 48 36 44 Residential 11 8 5 3 Other 81 40 31 41 Land 3,939 2,263 1,604 1,676 Developed Land 1,245 664 403 581 Other land 2,694 1,599 1,201 1,095 Property assets from home purchase mortgage loans to households 533 229 157 304 Other foreclosed property assets 148 72 56 76 Total property assets 5,922 3,242 2,375 2,680 31-12-2022 Million euros Gross carrying amount Valuation Adjustments Of which: Impairment losses since time of the foreclosure Carrying amount Property assets arising from financing provided to construction and property development companies 5,587 3,097 2,275 2,490 Of which: Completed Buildings 1,456 713 583 743 Residential 341 157 127 184 Other 1,115 556 456 559 Buildings under construction 92 44 32 48 Residential 25 7 4 18 Other 67 37 28 30 Land 4,039 2,340 1,660 1,699 Developed Land 1,286 689 415 597 Other land 2,753 1,651 1,245 1,102 Property assets from home purchase mortgage loans to households 659 274 190 385 Other foreclosed property assets 176 80 61 96 Total property assets 6,422 3,451 2,526 2,971
Disclosure of nature and extent of risks arising from financial instruments	Following is the gross exposure of financial assets subject to impairment stages at 30 June 2023 and 31 December 2022: EUR million 30-06-2023 31-12-2022 Gross amount Gross amount Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Total Financial assets at fair value through other comprehensive income 84,841 160 97 85,098 83,118 184 24 83,326 Debt instruments 76,015 — 6 76,021 75,087 — 6 75,093 Loans and advances 8,826 160 91 9,077 8,031 184 18 8,233 Credit institutions 303 — — 303 — — — — Customers 8,523 160 91 8,774 8,031 184 18 8,233 Financial assets at amortised cost 1,097,848 71,743 33,395 1,202,986 1,070,025 66,588 32,997 1,169,610 Debt instruments 91,254 125 442 91,821 73,297 75 398 73,770 Loans and advances 1,006,594 71,618 32,953 1,111,165 996,728 66,513 32,599 1,095,840 Central Banks 17,871 — — 17,871 15,375 — — 15,375 Credit institutions 52,369 13 — 52,382 46,523 1 — 46,524 Customers 936,354 71,605 32,953 1,040,912 934,830 66,512 32,599 1,033,941 Total 1,182,689 71,903 33,492 1,288,084 1,153,143 66,772 33,021 1,252,936 30-06-2023 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 18,444 20,765 18,512 2,523 1,133 61,377 Of which: impaired 142 193 204 167 267 973 31-12-2022 Gross amount in books on the amount of the last appraisal (loan to value) Million euros Less than or equal to 40% More than 40% or less than 60% More than 60% and less than 80% More than 80% and less or equal to 100% More than 100% Total Gross amount 17,877 20,617 20,225 3,294 1,387 63,400 Of which: impaired 132 192 220 181 339 1,064 At the end 30 June 2023 and 31 December 2022 the concentration of this portfolio was as follows: Loans: gross amount Million euros 30-06-2023 31-12-2022 1. Without mortgage guarantee 36 42 2. With mortgage guarantee 2,246 2,285 2.1 Completed buildings 951 1,138 2.1.1 Residential 528 674 2.1.2 Other 423 464 2.2 Buildings and other constructions under construction 1,273 1,110 2.2.1 Residential 1,216 1,103 2.2.2 Other 57 7 2.3 Land 22 37 2.3.1 Developed consolidated land 14 25 2.3.2 Other land 8 12 Total 2,282 2,327
Disclosure of capital ratio	Capital ratio 30-06-2023 31-12-2022 Capital coefficients Level 1 ordinary eligible capital (EUR million) 77,628 74,202 Level 1 additional eligible capital (EUR million) 8,856 8,831 Level 2 eligible capital (EUR million) 14,669 14,359 Risk-weighted assets (EUR million) 631,149 609,266 Level 1 ordinary capital coefficient (CET 1) 12.30 % 12.18 % Level 1 additional capital coefficient (AT1) 1.40 % 1.45 % Level 1 capital coefficient (TIER1) 13.70 % 13.63 % Level 2 capital coefficient (TIER 2) 2.33 % 2.36 % Total capital coefficient 16.03 % 15.99 %
Disclosure of leverage capital	Leverage 30-06-2023 31-12-2022 Leverage Tier 1 capital (EUR million) 86,485 83,033 Exposure (EIR million) 1,796,203 1,750,626 Leverage ratio 4.81 % 4.74 %

Additional disclosure require_2

Additional disclosure requirements (Tables)	6 Months Ended
	Jun. 30, 2023
Parent Company Financial Statements And Preference Shares And Preferred Securities [Abstract]
Condensed Balance Sheets	UNAUDITED CONDENSED BALANCE SHEETS 30 June 2023 31 December 2022 (Parent company only) (Millions of Euros) Assets Cash and due from banks 158,281 177,920 Of which: To bank subsidiaries 7,510 14,548 Trading account assets 104,836 92,128 Investment securities 58,000 47,560 Of which: To bank subsidiaries 16,248 14,287 To non-bank subsidiaries 1,171 1,327 Net Loans and leases 302,561 314,905 Of which: To non-bank subsidiaries 23,473 25,312 Investment in affiliated companies 96,997 94,213 Of which: To bank subsidiaries 73,360 70,698 To non-bank subsidiaries 23,637 23,515 Premises and equipment, net 6,466 6,513 Other assets 14,663 16,787 Total assets 741,804 750,026 Liabilities Deposits 378,537 418,841 Of which: To bank subsidiaries 8,514 16,619 To non-bank subsidiaries 12,995 15,106 Short-term debt 93,116 54,255 Long-term debt 104,059 114,447 Total debt 197,175 168,702 Of which: To bank subsidiaries 88 — To non-bank subsidiaries 2,147 1,638 Other liabilities 94,986 92,437 Total liabilities 670,698 679,980 Stockholders' equity Capital stock 8,092 8,397 Retained earnings and other reserves 63,014 61,649 Total stockholders' equity 71,106 70,046 Total liabilities and Stockholders’ Equity 741,804 750,026
Condensed Statements of Income	Following are the summarised unaudited statements of income of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED STATEMENTS OF INCOME Six months ended Six months ended (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) Interest income 13,380 7,004 Interest from earning assets 10,249 4,191 Dividends from affiliated companies 3,131 2,813 Of which: From bank subsidiaries 2,618 2,625 From non-bank subsidiaries 513 188 Interest expense (6,938) (2,068) Interest income / (Charges) 6,442 4,936 Provision for credit losses (755) (818) Interest income / (Charges) after provision for credit losses 5,687 4,118 Non-interest income: 2,397 2,558 Non-interest expense: (4,187) (4,202) Income before income taxes 3,897 2,474 Income tax expense (243) (43) Net income 3,654 2,431
Condensed Statements of Comprehensive Income	Following are the summarised unaudited statements of comprehensive income of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED STATEMENTS OF Six months ended Six months ended COMPREHENSIVE INCOME (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) NET INCOME 3,654 2,431 OTHER COMPREHENSIVE INCOME (183) (683) Items that may be reclassified subsequently to profit or loss 104 (551) Hedging instruments (items not designated) — — Revaluation gains (losses) — — Amounts transferred to income statement — — Other reclassifications — — Debt instruments at fair value with changes in other comprehensive income 43 (378) Revaluation gains (losses) 38 (327) Amounts transferred to income statement 5 (52) Other reclassifications — — Cash flow hedges: 133 (408) Revaluation gains/(losses) (24) (394) Amounts transferred to income statement 157 (14) Amounts transferred to initial carrying amount of hedged items — — Other reclassifications — — Hedges of net investments in foreign operations: — — Exchange differences — — Non-current assets held for sale — — Income tax (72) 235 Items that will not be reclassified to profit or loss: (287) (132) Actuarial gains/(losses) on pension plans 12 217 Other recognised income and expense of investments in subsidiaries, joint ventures and associates — — Changes in the fair value of equity instruments measured at fair value through other comprehensive income (275) (344) Gains or losses resulting from the accounting for hedges of equity instruments measured at fair value through other comprehensive income, net — — Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedged item) (41) 37 Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedging instrument) 41 (37) Changes in the fair value of financial liabilities at fair value through profit or loss attributable to changes in credit risk (34) 84 Income tax relating to items that will not be reclassified 10 (89) TOTAL COMPREHENSIVE INCOME 3,471 1,748
Condensed Cash Flow Statements	Following are the summarised unaudited cash flow statements of Banco Santander, S.A. for the periods ended 30 June 2023 and 2022. UNAUDITED CONDENSED CASH FLOW STATEMENTS Six months ended Six months ended (Parent company only) 30 June 2023 30 June 2022 (Millions of Euros) 1. Cash flows from operating activities Consolidated profit 3,654 2,431 Adjustments to profit 2,080 (483) Net increase/decrease in operating assets (10,186) (59,337) Net increase/decrease in operating liabilities (14,608) 80,616 Reimbursements/payments of income tax 1,134 (287) Total net cash flows from operating activities (1) (17,926) 22,940 2. Cash flows from investing activities Investments (-) (2,438) (2,072) Divestments (+) 4,099 4,440 Total net cash flows from investment activities (2) 1,661 2,368 3. Cash flows from financing activities Issuance of own equity instruments — — Disposal of own equity instruments 336 202 Acquisition of own equity instruments (1,622) (1,067) Issuance of debt securities 1,500 — Redemption of debt securities (438) (1,203) Dividends paid (963) (869) Issuance/Redemption of equity instruments — — Other collections/payments related to financing activities (87) (158) Total net cash flows from financing activities (3) (1,274) (3,095) 4. Effect of exchange rate changes on cash and cash equivalents (4) (429) 448 5. Net increase/decrease in cash and cash equivalents (1+2+3+4) (17,968) 22,661 Cash and cash equivalents at beginning of period 130,083 91,736 Cash and cash equivalents at end of period 112,115 114,397
Schedule of preference shares and preferred securities	The following table shows the balance of the preference shares and preferred securities as of 30 June 2023 and 31 December 2022: 30 June 2023 31 December 2022 (Millions of Euros) Preference shares 205 198 Preferred securities 7,864 7,898 Total at period-end 8,069 8,096
Schedule of preference shares and preferred securities by issuer	Outstanding at 30 June 2023 Amount in Preference Shares currency Interest rate Redemption Issuer/Date of issue Currency (million) Option (A) Santander UK plc, October 1995 Pounds Sterling 80.3 10.375 % No option Santander UK plc, February 1996 Pounds Sterling 80.3 10.375 % No option Outstanding at 30 June 2023 Amount in Preferred Securities currency Interest rate Maturity date Issuer/Date of issue Currency (million) Banco Santander, S.A. Banco Santander, S.A., September 2017 Euro 1,000.0 5.25 % (B) Perpetuity Banco Santander, S.A., March 2018 Euro 1,500.0 4.75 % (C) Perpetuity Banco Santander, S.A., February 2019 US Dollar 1,200.0 7.50 % (D) Perpetuity Banco Santander, S.A., January 2020 Euro 1,500.0 4.375 % (E) Perpetuity Banco Santander, S.A., May 2021 US Dollar 1,000.0 4.75 % (F) Perpetuity Banco Santander, S.A., May 2021 Euro 750.0 4.125 % (G) Perpetuity Banco Santander, S.A., September 2021 Euro 1,000.0 3.625 % (H) Perpetuity Santander Finance Preferred, S.A. (Unipersonal), September 2004 Euro 144.0 €CMS 10 +0.05% subject to a maximum distribution of 8% per annum Perpetuity A. From these dates the issuer can redeem the shares, subject to prior authorization by the national supervisor. B. Payment is subject to certain conditions and to the discretion of Banco Santander. The 5.25% interest rate is set for the first six years. After that, it will be reviewed by applying a margin of 499.9 basis points on the 5-year Mid-Swap Rate. C. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.75% interest rate is set for the first seven years. After that, it will be reviewed by applying a margin of 409.7 basis points on the Mid-Swap Rate. D. Payment is subject to certain conditions and to the discretion of Banco Santander. The 7.50% interest rate is set for the first five years. After that, it will be reviewed every 5 years by applying a margin of 498.9 basis points on the Mid-Swap Rate. E. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.375% interest rate is set for the first six years. After that, it will be reviewed every 5 years by applying a margin of 453.4 basis points on the 5-year Mid-Swap Rate. F. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.750% interest rate is set for the first six years, revised every 5 years thereafter by applying a margin of 375.3 basis points over the 5-year UST rate. G. Payment is subject to certain conditions and to the discretion of Banco Santander. The 4.125% interest rate is set for the first seven years, revised every 5 years thereafter by applying a margin of 431.1 basis points over the applicable 5-year Euro mid-swap. H. Payment is subject to certain conditions and to the discretion of Banco Santander. The 3.625% interest rate is set for the first eight years, revised every 5 years thereafter by applying a margin of 376 basis points over the 5-year Mid-Swap Rate.

Introduction, basis of presen_3

Introduction, basis of presentation of the interim condensed consolidated financial statements and other information - Basis of presentation of the interim financial statements (Details) - EUR (€) € in Millions		Jun. 30, 2023	Jan. 01, 2023	Dec. 31, 2022
Disclosure of initial application of standards or interpretations [line items]
LIABILITIES UNDER INSURANCE OR REINSURANCE CONTRACTS (*)	[1]	€ 17,584		€ 16,426
Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application [member]
Disclosure of initial application of standards or interpretations [line items]
LIABILITIES UNDER INSURANCE OR REINSURANCE CONTRACTS (*)			€ 16,000
[1]See impact of IFRS 17 as at 31 December 2022 (see Note 1.b).

Introduction, basis of presen_4

Introduction, basis of presentation of the interim condensed consolidated financial statements and other information - Comparative information (Details)	6 Months Ended
	Jun. 30, 2023
Mexico, Pesos
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	11.15%
Change in average foreign currency exchange rate (as a percent)	12.84%
United States of America, Dollars
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	(2.16%)
Change in average foreign currency exchange rate (as a percent)	1.11%
Brazil, Brazil Real
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	7.51%
Change in average foreign currency exchange rate (as a percent)	0.89%
United Kingdom, Pounds
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	3.35%
Change in average foreign currency exchange rate (as a percent)	(3.86%)
Chile, Pesos
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	4.02%
Change in average foreign currency exchange rate (as a percent)	3.65%
Poland, Zlotych
Disclosure of initial application of standards or interpretations [line items]
Change in foreign currency exchange rate (as a percent)	5.60%
Change in average foreign currency exchange rate (as a percent)	0.25%

Introduction, basis of presen_5

Introduction, basis of presentation of the interim condensed consolidated financial statements and other information - Other information (Details) € in Millions	Jan. 01, 2023 EUR (€)
Regulatory Framework Related Provisions | Spain
Disclosure of other provisions [line items]
Additional provisions charged to income statement	€ 224

Grupo Santander - Tender offer

Grupo Santander - Tender offer for shares of Banco Santander México, S.A., Institución de Banca Múltiple, Grupo Financiero Santander México (Details) - Banco Santander Mexico S.A. Institucion De Banca Multiple, Grupo Financiero Santander Mexico € / shares in Units, € in Millions				2 Months Ended
	Apr. 10, 2023 EUR (€)	Apr. 09, 2023	Oct. 21, 2022	Apr. 10, 2023 EUR (€)	Apr. 10, 2023 $ / shares	Apr. 10, 2023 € / shares	Apr. 10, 2023 $ / shares	Nov. 30, 2022
Disclosure of detailed information about business combination [line items]
Proportion of ownership interests held by non-controlling interests (in percentage)			3.76%
Percentage of voting equity interests acquired					3.60%	3.60%	3.60%
Proportion of ownership interest in subsidiary (in percentage)	99.80%	96.20%
Consideration, in cash per share | (per share)					$ 24.52	€ 1.20
Consideration, in cash per American Depositary Share | (per share)					$ 122.6		$ 6.6876
Consideration paid (received)				€ 300
Increase through business combinations, reserves	€ 13
Increase (decrease) through business combinations, minority interest	€ (313)
Business combination, minimum acceptance percentage by shareholders of acquiree								95%

Shareholder remuneration syst_3

Shareholder remuneration system and earnings per share - Schedule of shareholder remuneration (Details) - EUR (€) € / shares in Units, € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Earnings per share [abstract]
Dividends paid, ordinary shares, % of par value	11.90%	10.30%
Dividends paid, other shares (without vote, redeemable, etc.), % of par value	0%	0%
Total remuneration paid, % of par value	11.90%	10.30%
Dividends paid out of profit, % of par value	11.90%	10.30%
Dividends paid with a charge to reserves or share premium, % of par value	0%	0%
Dividend in kind, % of par value	0%	0%
Flexible payment, % of par value	0%	0%
Dividend paid, ordinary shares (in euro per share)	€ 0.0595	€ 0.0515
Dividends paid, other shares (without vote, redeemable, etc.) (in euro per share)	0	0
Total remuneration paid (in euro per share)	0.0595	0.0515
Dividends paid out of profit (in euro per share)	0.0595	0.0515
Dividends paid with a charge to reserves or share premium (in euro per share)	0	0
Dividend in kind (in euro per share)	0	0
Flexible payment (in euro per share)	€ 0	€ 0
Ordinary shares	€ 963	€ 869
Other shares (without vote, redeemable, etc.)	0	0
Total remuneration paid	963	869
Dividend paid out of profit	963	869
Dividend paid with a charge to reserves or share premium	0	0
Dividend in kind	0	0
Flexible payment	€ 0	€ 0

Shareholder remuneration syst_4

Shareholder remuneration system and earnings per share - Narrative (Details) - EUR (€) € / shares in Units, € in Millions				2 Months Ended
	May 02, 2023	May 31, 2022	May 02, 2022	May 12, 2023
2022 Program, Second
Earnings per share [line items]
Share buyback program, amount				€ 921
2021 Program, Second
Earnings per share [line items]
Share buyback program, amount		€ 865
Complementary Dividend
Earnings per share [line items]
Dividends recognised as distributions to owners per share (in euro per share)	€ 5.95		€ 5.15

Shareholder remuneration syst_5

Shareholder remuneration system and earnings per share - Schedule of basic earnings per share (Details) - EUR (€) € / shares in Units, € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Basic earnings per share [abstract]
Profit attributable to the Parent (EUR million)	€ 5,241	€ 4,894
Remuneration of contingently convertible preferred securities (CCPS) (EUR million)	(229)	(292)
Net profit for the year	5,012	4,602
Profit or Loss from discontinued operations (non controlling interest net) (EUR million)	0	0
Profit or Loss from continuing operations (CCPS net) (EUR million)	€ 5,012	€ 4,602
Weighted average number of shares outstanding (in shares)	16,279,041,269	16,947,764,566
Basic earnings per share (in euro per share)	€ 0.31	€ 0.27
Basic earnings per share from discontinued operations (in euro per share)	0	0
Basic earnings per share from continuing operations (in euro per share)	€ 0.31	€ 0.27

Shareholder remuneration syst_6

Shareholder remuneration system and earnings per share - Schedule of diluted earnings per share (Details) - EUR (€) € / shares in Units, € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Diluted earnings per share [abstract]
Profit attributable to the Parent (EUR million)	€ 5,241	€ 4,894
Remuneration of contingently convertible preferred securities (CCPS) (EUR million)	(229)	(292)
Net profit for the year	5,012	4,602
Profit or Loss from discontinued operations (non controlling interest net) (EUR million)	0	0
Profit or Loss from continuing operations (CCPS net) (EUR million)	€ 5,012	€ 4,602
Weighted average number of shares outstanding (in shares)	16,279,041,269	16,947,764,566
Dilutive effect of options/receipt of shares (in shares)	67,704,709	48,431,475
Adjusted number of shares (in shares)	16,346,745,978	16,996,196,041
Diluted earnings per share (in euro per share)	€ 0.31	€ 0.27
Diluted earnings per share from discontinued operations (in euro per share)	0	0
Diluted earnings per share from continuing operations (in euro per share)	€ 0.31	€ 0.27

Remuneration and other benefi_3

Remuneration and other benefits paid to Banco Santander’s directors and senior managers - Schedule of remuneration of members of the board of directors (Details) - Board directors - EUR (€) € in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Remuneration concept
Fixed salary remuneration of executive directors	€ 3,136	€ 2,859
Variable salary remuneration of executive directors	0	0
Directors fees	628	525
Bylaw-stipulated emoluments (annual emolument)	2,113	1,890
Other	1,407	1,317
Sub-total	7,284	6,591
Transactions with shares and/or other financial instruments	0	0
Total remuneration	€ 7,284	€ 6,591

Remuneration and other benefi_4

Remuneration and other benefits paid to Banco Santander’s directors and senior managers - Schedule of other benefits of members of the board of directors (Details) - EUR (€) € in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Board directors
Other benefits
Advances	€ 0	€ 0
Pension funds and plans: Endowments and/or contributions	1,055	946
Pension funds and plans: Accumulated rights	66,792	64,895
Life insurance premiums	563	769
Guarantees provided for directors	0	0
Former board directors
Other benefits
Pension funds and plans: Accumulated rights	46,275	48,388
Loan commitments granted | Board directors
Other benefits
Loans granted	€ 144	€ 133

Remuneration and other benefi_5

Remuneration and other benefits paid to Banco Santander’s directors and senior managers - Schedule of remuneration of senior management (Details) € in Thousands	6 Months Ended
	Jun. 30, 2023 EUR (€) employees	Jun. 30, 2022 EUR (€) employees
Disclosure of transactions between related parties [line items]
Number of senior managers who ceased in their functions | employees		0
Senior management
Disclosure of transactions between related parties [line items]
Total remuneration of senior management | €	€ 12,761	€ 13,978
Number of employees | employees	14	15
Senior management, ceased functions during the period
Disclosure of transactions between related parties [line items]
Remunerations received by members of senior management who ceased in their functions | €	€ 511

Remuneration and other benefi_6

Remuneration and other benefits paid to Banco Santander’s directors and senior managers - Schedule of funds and pension plans of senior management (Details) € in Thousands	6 Months Ended
	Jun. 30, 2023 EUR (€)	Jun. 30, 2022 EUR (€) employees
Disclosure of transactions between related parties [line items]
Number of senior managers who ceased in their functions | employees		0
Senior management
Disclosure of transactions between related parties [line items]
Pension funds: Endowments and/or contributions	€ 2,550	€ 2,808
Pension funds: Accumulated rights	55,451	56,222
Remunerations received as endowments and/or contributions to pension funds by members of the senior management who ceased in their functions	108
Retired senior management
Disclosure of transactions between related parties [line items]
Pension funds: Accumulated rights	€ 90,401	€ 113,060

Financial assets - Schedule of

Financial assets - Schedule of components of financial assets (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Debt Instruments
Financial assets held for trading	€ 183,834	€ 156,118
Non-trading financial assets mandatorily at fair value through profit or loss	5,796	5,713
Financial assets designated at fair value through profit or loss	9,645	8,989
Financial assets at fair value through other comprehensive income	86,756	85,239
Financial assets at amortised cost	1,180,302	1,147,044
Derivatives
Debt Instruments
Financial assets held for trading	67,613	67,002
Equity instruments
Debt Instruments
Financial assets held for trading	13,349	10,066
Non-trading financial assets mandatorily at fair value through profit or loss	4,055	3,711
Financial assets at fair value through other comprehensive income	1,729	1,941
Debt instruments
Debt Instruments
Financial assets held for trading	55,823	41,403
Non-trading financial assets mandatorily at fair value through profit or loss	888	1,134
Financial assets designated at fair value through profit or loss	3,089	2,542
Financial assets at fair value through other comprehensive income	76,010	75,083
Financial assets at amortised cost	91,559	73,554
Loans and advances
Debt Instruments
Financial assets held for trading	47,049	37,647
Non-trading financial assets mandatorily at fair value through profit or loss	853	868
Financial assets designated at fair value through profit or loss	6,556	6,447
Financial assets at fair value through other comprehensive income	9,017	8,215
Financial assets at amortised cost	1,088,743	1,073,490
Central Banks
Debt Instruments
Financial assets held for trading	12,406	11,595
Non-trading financial assets mandatorily at fair value through profit or loss	0	0
Financial assets designated at fair value through profit or loss	0	0
Financial assets at fair value through other comprehensive income	0	0
Financial assets at amortised cost	17,871	15,375
Credit institutions
Debt Instruments
Financial assets held for trading	23,592	16,502
Non-trading financial assets mandatorily at fair value through profit or loss	1	0
Financial assets designated at fair value through profit or loss	626	673
Financial assets at fair value through other comprehensive income	303	0
Financial assets at amortised cost	52,375	46,518
Customers
Debt Instruments
Financial assets held for trading	11,051	9,550
Non-trading financial assets mandatorily at fair value through profit or loss	852	868
Financial assets designated at fair value through profit or loss	5,930	5,774
Financial assets at fair value through other comprehensive income	8,714	8,215
Financial assets at amortised cost	€ 1,018,497	€ 1,011,597

Financial assets - Disclosure o

Financial assets - Disclosure of gross exposure by stages of impairment (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	€ 1,288,084	€ 1,252,936
Other assets | Next 12 months
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,182,689	1,153,143
Other assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	71,903	66,772
Impaired assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	33,492	33,021
Financial assets at fair value through other comprehensive income
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	85,098	83,326
Financial assets at fair value through other comprehensive income | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	76,021	75,093
Financial assets at fair value through other comprehensive income | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	9,077	8,233
Financial assets at fair value through other comprehensive income | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	303	0
Financial assets at fair value through other comprehensive income | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	8,774	8,233
Financial assets at fair value through other comprehensive income | Other assets | Next 12 months
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	84,841	83,118
Financial assets at fair value through other comprehensive income | Other assets | Next 12 months | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	76,015	75,087
Financial assets at fair value through other comprehensive income | Other assets | Next 12 months | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	8,826	8,031
Financial assets at fair value through other comprehensive income | Other assets | Next 12 months | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	303	0
Financial assets at fair value through other comprehensive income | Other assets | Next 12 months | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	8,523	8,031
Financial assets at fair value through other comprehensive income | Other assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	160	184
Financial assets at fair value through other comprehensive income | Other assets | Lifetime expected credit losses | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	0	0
Financial assets at fair value through other comprehensive income | Other assets | Lifetime expected credit losses | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	160	184
Financial assets at fair value through other comprehensive income | Other assets | Lifetime expected credit losses | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	0	0
Financial assets at fair value through other comprehensive income | Other assets | Lifetime expected credit losses | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	160	184
Financial assets at fair value through other comprehensive income | Impaired assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	97	24
Financial assets at fair value through other comprehensive income | Impaired assets | Lifetime expected credit losses | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	6	6
Financial assets at fair value through other comprehensive income | Impaired assets | Lifetime expected credit losses | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	91	18
Financial assets at fair value through other comprehensive income | Impaired assets | Lifetime expected credit losses | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	0	0
Financial assets at fair value through other comprehensive income | Impaired assets | Lifetime expected credit losses | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	91	18
Financial assets at amortised cost
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,202,986	1,169,610
Financial assets at amortised cost | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	91,821	73,770
Financial assets at amortised cost | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,111,165	1,095,840
Financial assets at amortised cost | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	52,382	46,524
Financial assets at amortised cost | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,040,912	1,033,941
Financial assets at amortised cost | Central Banks
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	17,871	15,375
Financial assets at amortised cost | Other assets | Next 12 months
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,097,848	1,070,025
Financial assets at amortised cost | Other assets | Next 12 months | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	91,254	73,297
Financial assets at amortised cost | Other assets | Next 12 months | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	1,006,594	996,728
Financial assets at amortised cost | Other assets | Next 12 months | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	52,369	46,523
Financial assets at amortised cost | Other assets | Next 12 months | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	936,354	934,830
Financial assets at amortised cost | Other assets | Next 12 months | Central Banks
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	17,871	15,375
Financial assets at amortised cost | Other assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	71,743	66,588
Financial assets at amortised cost | Other assets | Lifetime expected credit losses | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	125	75
Financial assets at amortised cost | Other assets | Lifetime expected credit losses | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	71,618	66,513
Financial assets at amortised cost | Other assets | Lifetime expected credit losses | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	13	1
Financial assets at amortised cost | Other assets | Lifetime expected credit losses | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	71,605	66,512
Financial assets at amortised cost | Other assets | Lifetime expected credit losses | Central Banks
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	0	0
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	33,395	32,997
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses | Debt instruments
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	442	398
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses | Loans and advances
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	32,953	32,599
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses | Credit institutions
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	0	0
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	32,953	32,599
Financial assets at amortised cost | Impaired assets | Lifetime expected credit losses | Central Banks
Disclosure of reconciliation of changes in loss allowance of financial instruments
Maximum exposure to credit risk	€ 0	€ 0

Financial assets - Narrative (D

Financial assets - Narrative (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Debt Instruments
Exposure in impaired assets purchased with impairment	€ 1,288,084		€ 1,252,936
Impairment loss (reversal)	6,237	€ 4,763
Financial assets at amortised cost
Debt Instruments
Exposure in impaired assets purchased with impairment	1,202,986		1,169,610
Previously written-off assets recovered	864	662
Loss due to contract renegotiation and modification	264	169
Impairment loss (reversal)	6,243	€ 4,762
Financial instruments purchased credit impaired
Debt Instruments
Exposure in impaired assets purchased with impairment	671		€ 322
Financial instruments purchased credit impaired | Business combinations carried out
Debt Instruments
Exposure in impaired assets purchased with impairment	€ 251

Financial assets - Disclosure_2

Financial assets - Disclosure of reconciliation of changes in loss allowance (Details) - Financial assets at amortised cost - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment losses charged to income for the period	€ 6,843	€ 5,255
Impairment losses charged to income	11,225	9,720
Impairment losses reversed with a credit to income	(4,382)	(4,465)
Perimeter change	(37)	0
Write-off of impaired balances against recorded impairment allowance	(6,831)	(5,682)
Exchange differences and other	492	937
Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	22,888	23,164
Impairment allowance at end of year	23,355	23,674
Impaired assets | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	14,271	13,707
Other assets | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	9,084	9,967
Individually calculated | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	2,858	2,719
Collectively calculated | Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	€ 20,497	€ 20,955

Financial assets - Disclosure_3

Financial assets - Disclosure of reconciliation of changes in gross carrying amount for financial instruments (Details) - Financial assets at amortised cost - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Disclosure of reconciliation of changes in loss allowance of financial instruments
Variation due to credit risk	€ 37	€ 0
Write-offs	6,831	5,682
Exchange differences and other	492	937
Accumulated impairment
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	22,888	23,164
Impairment allowance at end of year	23,355	23,674
Accumulated impairment | Other assets
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	9,084	9,967
Accumulated impairment | Impaired assets
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at end of year	14,271	13,707
Accumulated impairment | Loans and advances to customers
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	22,666	22,952
Transfers between stages	3,668	2,544
Variation due to credit risk	3,119	2,721
Write-offs	(6,801)	(5,682)
Exchange differences and other	434	905
Impairment allowance at end of year	23,086	23,440
Accumulated impairment | Loans and advances to customers | Other assets | Next 12 months
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	3,611	4,182
Transfers between stages	(454)	(455)
Variation due to credit risk	605	473
Write-offs	0	0
Exchange differences and other	88	249
Impairment allowance at end of year	3,850	4,449
Accumulated impairment | Loans and advances to customers | Other assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	5,124	5,224
Transfers between stages	355	381
Variation due to credit risk	(377)	(447)
Write-offs	0	0
Exchange differences and other	97	324
Impairment allowance at end of year	5,199	5,482
Accumulated impairment | Loans and advances to customers | Impaired assets | Lifetime expected credit losses
Disclosure of reconciliation of changes in loss allowance of financial instruments
Impairment allowance at beginning of year	13,931	13,546
Transfers between stages	3,767	2,618
Variation due to credit risk	2,891	2,695
Write-offs	(6,801)	(5,682)
Exchange differences and other	249	332
Impairment allowance at end of year	€ 14,037	€ 13,509

Financial assets - Disclosure_4

Financial assets - Disclosure of reconciliation of financial assets classified at amortised cost (Details) - Financial assets at amortised cost - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Disclosure of reconciliation of changes in loss allowance of financial instruments
Written-off assets	€ (6,831)	€ (5,682)
Perimeter change	(37)	0
Exchange differences and other	(492)	(937)
Gross carrying amount | Impaired assets
Disclosure of reconciliation of changes in loss allowance of financial instruments
Financial assets at beginning of period	33,269	31,848
Net additions	6,480	5,710
Written-off assets	(6,831)	(5,682)
Perimeter change	(45)	0
Exchange differences and other	773	850
Financial assets at end of period	€ 33,646	€ 32,726

Financial assets - Schedule o_2

Financial assets - Schedule of guarantees received for financial assets (Details) - Financial assets at amortised cost - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of financial assets that are either past due or impaired [line items]
Real guarantees value	€ 632,794	€ 627,337
Other guarantees value	93,967	96,645
Total value of the guarantees received	726,761	723,982
Credit impaired | Impaired assets
Disclosure of financial assets that are either past due or impaired [line items]
Real guarantees value	12,028	11,846
Other guarantees value	€ 2,227	€ 2,029

Financial assets - Schedule o_3

Financial assets - Schedule of financial assets measured at other than fair value (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Carrying amount
Disclosure of fair value measurement of assets [line items]
Financial assets	€ 1,180,302	€ 1,147,044
Fair  value
Disclosure of fair value measurement of assets [line items]
Financial assets, at fair value	1,156,421	1,124,076
Loans and advances | Carrying amount
Disclosure of fair value measurement of assets [line items]
Financial assets	1,088,743	1,073,490
Loans and advances | Fair  value
Disclosure of fair value measurement of assets [line items]
Financial assets, at fair value	1,067,336	1,053,703
Debt instruments | Carrying amount
Disclosure of fair value measurement of assets [line items]
Financial assets	91,559	73,554
Debt instruments | Fair  value
Disclosure of fair value measurement of assets [line items]
Financial assets, at fair value	€ 89,085	€ 70,373

Non-current assets held for s_3

Non-current assets held for sale - Schedule of non-current assets classified as held for sale (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Assets And Liabilities Classified As Held For Sale [Line Items]
Tangible assets	€ 34,159	€ 34,073
Other assets	9,193	10,082
Non-current assets or disposal groups classified as held for sale	3,151	3,453
Non-current assets held for sale
Assets And Liabilities Classified As Held For Sale [Line Items]
Tangible assets	3,125	3,435
Other assets	26
Non-current assets or disposal groups classified as held for sale	3,151	3,453
Non-current assets held for sale | Foreclosed assets
Assets And Liabilities Classified As Held For Sale [Line Items]
Tangible assets	2,912	3,101
Other tangible assets held for sale	213	334
Other assets		18
Non-current assets held for sale | Spain | Foreclosed assets
Assets And Liabilities Classified As Held For Sale [Line Items]
Tangible assets	€ 2,335	€ 2,596

Non-current assets held for s_4

Non-current assets held for sale - Narrative (Details) - Non-current assets held for sale - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Assets And Liabilities Classified As Held For Sale [Line Items]
Provision recognised for non-current assets held for sale	€ 3,173		€ 3,425
Net charges recorded against valuation allowances	63	€ 100
Recoveries	€ 16	€ 33

Tangible assets (Details)

Tangible assets (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Property, plant and equipment [abstract]
Acquisitions, property, plant and equipment	€ 4,705	€ 4,387
Disposals, property, plant and equipment	2,713	2,965
(Losses) gains on disposals of property, plant and equipment	24	€ (4)
Right-of-use assets	€ 2,384		€ 2,413

Intangible assets - Schedule of

Intangible assets - Schedule of goodwill based on cash-generating units (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of information for cash-generating units [line items]
Goodwill	€ 14,126	€ 13,741
Banco Santander (Brazil)
Disclosure of information for cash-generating units [line items]
Goodwill	3,756	3,503
SAM Investment Holdings Limited
Disclosure of information for cash-generating units [line items]
Goodwill	1,444	1,444
Santander Consumer Germany
Disclosure of information for cash-generating units [line items]
Goodwill	1,304	1,304
Santander Bank Polska
Disclosure of information for cash-generating units [line items]
Goodwill	1,135	1,075
Santander Portugal
Disclosure of information for cash-generating units [line items]
Goodwill	1,040	1,040
Santander US Auto
Disclosure of information for cash-generating units [line items]
Goodwill	1,016	1,039
Santander España
Disclosure of information for cash-generating units [line items]
Goodwill	998	998
Santander Holding USA (ex. Auto)
Disclosure of information for cash-generating units [line items]
Goodwill	824	844
Santander UK
Disclosure of information for cash-generating units [line items]
Goodwill	619	599
Banco Santander - Chile
Disclosure of information for cash-generating units [line items]
Goodwill	570	548
Grupo Financiero Santander (Mexico)
Disclosure of information for cash-generating units [line items]
Goodwill	522	469
Ebury Partners
Disclosure of information for cash-generating units [line items]
Goodwill	308	298
Santander Consumer Nordics
Disclosure of information for cash-generating units [line items]
Goodwill	199	215
Other entities
Disclosure of information for cash-generating units [line items]
Goodwill	€ 391	€ 365

Intangible assets - Narrative (

Intangible assets - Narrative (Details) € in Millions	6 Months Ended
	Jun. 30, 2023 EUR (€)
Intangible assets and goodwill [abstract]
Increase in goodwill	€ 385
Impairment loss recognised in profit or loss, goodwill	€ 0

Financial liabilities - Schedul

Financial liabilities - Schedule of components of financial liabilities other than hedging derivatives (Details) - EUR (€) € in Millions		Jun. 30, 2023	Dec. 31, 2022
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		€ 134,888	€ 115,185
Financial liabilities designated at fair value through profit or loss	[1]	36,220	40,268
Financial liabilities at amortised cost		1,446,882	1,423,858
Derivatives
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		62,259	64,891
Short Positions
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		22,352	22,515
Deposits
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		50,277	27,779
Financial liabilities designated at fair value through profit or loss		30,536	34,841
Financial liabilities at amortised cost		1,115,908	1,111,887
Central banks
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		16,216	5,757
Financial liabilities designated at fair value through profit or loss		829	1,740
Financial liabilities at amortised cost		58,644	76,952
Credit institutions
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		14,140	9,796
Financial liabilities designated at fair value through profit or loss		2,410	1,958
Financial liabilities at amortised cost		90,704	68,582
Customer
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		19,921	12,226
Financial liabilities designated at fair value through profit or loss		27,297	31,143
Financial liabilities at amortised cost		966,560	966,353
Debt instruments
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		0	0
Financial liabilities designated at fair value through profit or loss		5,684	5,427
Financial liabilities at amortised cost		285,869	274,912
Other financial liabilities
Disclosure of financial liabilities [line items]
Financial liabilities held for trading		0	0
Financial liabilities designated at fair value through profit or loss		0	0
Financial liabilities at amortised cost		€ 45,105	€ 37,059
[1]See impact of IFRS 17 as at 31 December 2022 (see Note 1.b).

Financial liabilities - Disclos

Financial liabilities - Disclosure of composition of debt instruments excluding promissory notes (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Bonds and debentures outstanding
Disclosure of financial liabilities [line items]
Financial liabilities	€ 217,735	€ 211,597	€ 204,623	€ 194,362
Subordinated
Disclosure of financial liabilities [line items]
Financial liabilities	26,864	25,717	€ 25,833	€ 25,938
Debt instruments
Disclosure of financial liabilities [line items]
Financial liabilities	291,553	280,339
Debt instruments | Bonds and debentures outstanding
Disclosure of financial liabilities [line items]
Financial liabilities	217,735	211,597
Debt instruments | Subordinated
Disclosure of financial liabilities [line items]
Financial liabilities	26,864	25,717
Debt instruments | Promissory notes and other securities
Disclosure of financial liabilities [line items]
Financial liabilities	€ 46,954	€ 43,025

Financial liabilities - Discl_2

Financial liabilities - Disclosure of reconciliation of debt instruments (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Changes in financial instruments, Liabilities
Perimeter	€ (304)	€ (84)
Bonds and debentures outstanding
Changes in financial instruments, Liabilities
Balance at beginning of period	211,597	194,362
Perimeter	(1,467)	0
Issuances or placements	34,438	33,800
Repurchases or redemptions	(28,534)	(27,376)
Exchange rate and other adjustments	1,701	3,837
Balance at end of period	217,735	204,623
Subordinated
Changes in financial instruments, Liabilities
Balance at beginning of period	25,717	25,938
Perimeter	0	0
Issuances or placements	1,500	113
Repurchases or redemptions	(36)	(853)
Exchange rate and other adjustments	(317)	635
Balance at end of period	26,864	25,833
Bonds and debentures and subordinated liabilities
Changes in financial instruments, Liabilities
Balance at beginning of period	237,314	220,300
Perimeter	(1,467)	0
Issuances or placements	35,938	33,913
Repurchases or redemptions	(28,570)	(28,229)
Exchange rate and other adjustments	1,384	4,472
Balance at end of period	€ 244,599	€ 230,456

Financial liabilities - Narrati

Financial liabilities - Narrative (Details) - EUR (€) € in Millions	May 23, 2023	Jun. 30, 2023	Dec. 31, 2022	Apr. 25, 2022
Disclosure of financial liabilities [line items]
Other financial liabilities		€ 45,105	€ 37,059
Subordinated | Issuance By Banco Santander SA In May 2023
Disclosure of financial liabilities [line items]
Notional amount	€ 1,500
Subordinated issue, term	10 years 3 months
Interest rate	5.75%
Initial interest rate term	5 years 3 months
Adjustment to reference rate, after initial interest rate period	2.85%
Subordinated issue, Euro Swap rate term	5 years
Tier One Contingently Convertible Preferred Securities
Disclosure of financial liabilities [line items]
Notional amount				€ 750

Financial liabilities - Sched_2

Financial liabilities - Schedule of financial liabilities measured at other than fair value (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	€ 820	€ 925	€ 630	€ 629
Debt instruments
Disclosure of financial liabilities [line items]
Financial liabilities	291,553	280,339
Carrying amount
Disclosure of financial liabilities [line items]
Financial liabilities	1,401,777	1,386,799
Carrying amount | Deposits
Disclosure of financial liabilities [line items]
Financial liabilities	1,115,908	1,111,887
Carrying amount | Debt instruments
Disclosure of financial liabilities [line items]
Financial liabilities	285,869	274,912
Fair  value
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	1,390,494	1,372,109
Fair  value | Deposits
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	1,114,308	1,108,918
Fair  value | Debt instruments
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	€ 276,186	€ 263,191

Provisions - Schedule of other

Provisions - Schedule of other provisions by type of provision (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of other provisions [line items]
Provisions	€ 8,389	€ 8,149
Other combined provisions
Disclosure of other provisions [line items]
Provisions	4,490	4,073
Provisions for taxes
Disclosure of other provisions [line items]
Provisions	741	679
Provisions for employment-related proceedings | Brazil
Disclosure of other provisions [line items]
Provisions	475	301
Provisions for other legal proceedings
Disclosure of other provisions [line items]
Provisions	1,342	1,094
Provision for customer remediation
Disclosure of other provisions [line items]
Provisions	385	349
Provision for restructuring
Disclosure of other provisions [line items]
Provisions	659	641
Other
Disclosure of other provisions [line items]
Provisions	€ 888	€ 1,009

Provisions - Narrative (Details

Provisions - Narrative (Details) - Brazil € in Millions	6 Months Ended
	Jun. 30, 2023 EUR (€)
Provisions for employment-related proceedings
Disclosure of other provisions [line items]
Additional provisions charged to income statement	€ 257
Use of the available provisions	116
Provisions for other legal proceedings
Disclosure of other provisions [line items]
Additional provisions charged to income statement	115
Use of the available provisions	€ 87

Provisions - Tax-related litiga

Provisions - Tax-related litigation (Details) € in Millions	Jun. 30, 2023 EUR (€)	Jun. 13, 2023 case	Dec. 31, 2022 EUR (€)	Oct. 31, 2021 decision
Disclosure of other provisions [line items]
PROVISIONS	€ 8,389		€ 8,149
Number of decision appealed before European Courts | decision				2
Banco Santander (Brazil)
Disclosure of other provisions [line items]
Tax legal obligations with probable loss risk	807
Estimated financial effect of contingent liabilities	5,440
Legal case relating to Programa de Integraçao Social (PIS) and Contribuição para Financiamento da Seguridade Social (COFINS)
Disclosure of other provisions [line items]
Number of unfavorably cases ruled by Federal Supreme Court | case		2
Legal case relating to questionable deduction of loan losses in income tax returns | Banco Santander (Brazil)
Disclosure of other provisions [line items]
PROVISIONS	0
Legal case relating to tax deductibility of sale of shares | Banco Santander (Brazil)
Disclosure of other provisions [line items]
PROVISIONS	0
Legal case appeal relating to deduction of expenses in income tax (IRPJ and CSLL) | Banco Santander Brasil SA
Disclosure of other provisions [line items]
PROVISIONS	0
Legal case relating to tax deductibility of amortization of goodwill arising on acquisition | Banco Santander (Brazil) | Banco Comercial e de Investimento Sudameris S.A
Disclosure of other provisions [line items]
PROVISIONS	0
Legal case relating to tax deductibility of amortization of goodwill arising on acquisition | Banco Santander (Brazil) | Getnet Tecnologia Proces S.A.
Disclosure of other provisions [line items]
PROVISIONS	0
Legal case related to infringement notices initiated by tax authorities regarding offsetting tax losses | Banco Santander (Brazil)
Disclosure of other provisions [line items]
PROVISIONS	0
Legal Case Related To Withholding Income Tax On Payments Derived From Technology Services | Banco Santander Brasil SA
Disclosure of other provisions [line items]
PROVISIONS	€ 0

Provisions - Non-tax-related pr

Provisions - Non-tax-related proceedings (Details) € in Millions, £ in Millions, zł in Millions

5 Months Ended

6 Months Ended

12 Months Ended

19 Months Ended

Jul. 11, 2023 EUR (€)

Feb. 06, 2023 EUR (€)

Jun. 29, 2022 magistrate

Jan. 13, 2022 EUR (€)

Dec. 09, 2021 EUR (€)

Sep. 16, 2021 EUR (€)

May 29, 2020

May 16, 2021 EUR (€)

Jun. 30, 2023 EUR (€) entity

Jun. 30, 2023 PLN (zł)

Dec. 31, 1999 shares

Dec. 31, 1994 child

Dec. 31, 2022 EUR (€)

Jun. 30, 2023 PLN (zł) entity

Jun. 29, 2023 EUR (€)

Jun. 29, 2023 GBP (£)

Jun. 20, 2023 EUR (€)

Dec. 02, 2022 EUR (€)

Dec. 02, 2022 GBP (£)

Jun. 01, 2022 judgement appeal

Mar. 05, 2021 EUR (€)

Mar. 05, 2021 GBP (£)

Jul. 31, 2020 EUR (€)

Dec. 31, 2017 EUR (€)

Disclosure of other provisions [line items]

PROVISIONS

€ 8,389

€ 8,149

Number of pilot cases | appeal

5

Number of judgements rendered on pilot cases appealed | judgement

4

Banco Popular Espanol S.A.

Disclosure of other provisions [line items]

Estimated cost of compensation to shareholders and bondholders

€ 680

Estimated cost of compensation to shareholders and bondholders applied to the commercial loyalty program

€ 535

Santander Bank Polska and Santander Consumer Bank Poland

Disclosure of other provisions [line items]

Mortgage loans denominated in, or indexed to, CHF

€ 1,543

zł 6,844.4

Reimbursement liability from standstill agreement termination

Disclosure of other provisions [line items]

Legal proceedings, amount of entities involved in legal dispute | entity

2

2

PROVISIONS

€ 643.4

£ 552

€ 780.9

£ 670

€ 741.3

£ 636

Reimbursement liability from standstill agreement termination | Genworth Financial International Holdings, Inc.

Disclosure of other provisions [line items]

PROVISIONS

€ 624

Delforca case to request Court judgment on the validity of the swaps

Disclosure of other provisions [line items]

Arbitration matter, amount claimed by entity

€ 66

Arbitration matter, amount claimed by counterparty

57

Arbitration matter, amount to be received by entity

€ 66

Arbitration matter, interest to be received by entity

€ 11

Planos Economicos

Disclosure of other provisions [line items]

Period of suspension of economic plan processes

5 years

Planos Economicos | Banco Santander Brasil SA

Disclosure of other provisions [line items]

PROVISIONS

€ 238.2

Floor clauses

Disclosure of other provisions [line items]

PROVISIONS

55.5

Banco Popular's acquisition

Disclosure of other provisions [line items]

Number of judgements rendered on pilot cases | judgement

5

Individual plaintiff, CEO functions

Disclosure of other provisions [line items]

PROVISIONS

€ 35.5

Compensation sought in litigation claim

€ 112

€ 61.9

Losses on litigation settlements

€ 51.4

€ 67.8

Litigation contingencies, decrease in losses on litigation settlements

€ 8

Gains on litigation settlements

€ 9.6

Individual plaintiff, CEO functions | Share Based Variable Remuneration Award 2018

Disclosure of other provisions [line items]

Variable remuneration, deferred payment, long-term metric achievement, percentage

33.30%

33.30%

Breach of marketing alliance agreement

Disclosure of other provisions [line items]

Compensation sought in litigation claim

€ 1,050

Conversion of active loans from Swiss Francs to PLN Loans | Santander Bank Polska and Santander Consumer Bank Poland

Disclosure of other provisions [line items]

Mortgage loans, provision and adjustment to gross carrying amount

902.4

zł 4,003.1

Mortgage loans, adjustment to gross carrying amount

775

3,437.6

Increase in adjustment to gross carrying amount, mortgage loans

163.4

zł 755.6

Increase through other costs associated

46.3

213.9

Conversion of active loans from Swiss Francs to PLN Loans | Santander Bank Polska and Santander Consumer Bank Poland | Active loans, under IAS 37

Disclosure of other provisions [line items]

PROVISIONS

127.4

zł 565.5

Increase in existing provisions

38.9

zł 180

Inheritance trust | Banco Santander Mexico S.A. Institucion De Banca Multiple, Grupo Financiero Santander Mexico

Disclosure of other provisions [line items]

Number of sons involved in testamentary trust | child

4

Amount of shares to be transferred by trustee | shares

36,700,000

Number of magistrates requested to be withdrawed | magistrate

2

Number of magistrates | magistrate

3

Financing terms, bonds issue | URO Property Holdings SOCIMI SA

Disclosure of other provisions [line items]

Legal proceedings, maximum loss

€ 250

Equity - Capital (Details)

Equity - Capital (Details) - EUR (€) € / shares in Units, € in Millions			6 Months Ended
	Jun. 30, 2023	Mar. 21, 2023	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Disclosure of classes of share capital [line items]
Nominal amount	€ 8,092		€ 8,092		€ 8,397
Number of shares outstanding (in shares)	16,184,146,059		16,184,146,059		16,794,401,584
Par value per share (in euro per share)	€ 0.50		€ 0.50		€ 0.50
Reduction of issued capital			€ 0	€ 0
(-) Own shares
Disclosure of classes of share capital [line items]
Reduction of issued capital	€ 135	€ 170	€ (1,900)	€ (1,706)
Redemption of treasury shares (in shares)	269,848,953	340,406,572

Equity - Share premium (Details

Equity - Share premium (Details) € in Millions	6 Months Ended
	Jun. 30, 2023 EUR (€)
Redemption of treasury shares, purchase value	€ 1,900
Redemption of treasury shares, par value	305
Share premium
Increase (decrease) in equity	€ (1,595)

Equity - Schedule of other comp

Equity - Schedule of other comprehensive income components (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Equity [abstract]
OTHER COMPREHENSIVE INCOME (LOSS)	€ (33,789)	€ (35,628)
Items not reclassified to profit or loss	(4,956)	(4,635)
Actuarial gains or losses on defined benefit pension plans	(4,036)	(3,945)
Non-current assets held for sale	0	0
Share in other income and expenses recognised in investments, joint ventures and associates	3	10
Other valuation adjustments	0	0
Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income	(859)	(672)
Inefficacy of fair value hedges of equity instruments measured at fair value with changes in other comprehensive income	0	0
Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income (hedged item)	252	293
Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income (hedging instrument)	(252)	(293)
Changes in the fair value of financial liabilities measured at fair value through profit or loss attributable to changes in credit risk	(64)	(28)
Items that may be reclassified to profit or loss	(28,833)	(30,993)
Hedge of net investments in foreign operations (effective portion)	(8,322)	(6,750)
Exchange differences	(17,580)	(20,420)
Hedging derivatives (effective portion)	(2,118)	(2,437)
Changes in the fair value of debt instruments measured at fair value with changes in other comprehensive income	(563)	(1,002)
Hedging instruments (items not designated)	0	0
Non-current assets held for sale	0	0
Share in other income and expenses recognised in investments, joint ventures and associates	€ (250)	€ (384)

Equity - Other comprehensive in

Equity - Other comprehensive income, items not reclassified to profit or loss - Actuarial gains or losses on defined benefit benefit pension plans (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Items not reclassified to profit or loss
Decrease (increase) in actuarial losses	€ (402)
Increase (decrease) in net defined benefit liability (asset) resulting from miscellaneous other changes	120
UK
Items not reclassified to profit or loss
Decrease (increase) in accumulated actuarial losses/profits	€ (182)
Discount rates	5.28%	4.88%
Brazil
Items not reclassified to profit or loss
Decrease (increase) in accumulated actuarial losses/profits	€ (134)
Brazil | Main Pension Plan
Items not reclassified to profit or loss
Discount rates	8.71%	9.44%
Brazil | Main Medical Plan
Items not reclassified to profit or loss
Discount rates	8.73%	9.46%
Portugal
Items not reclassified to profit or loss
Decrease (increase) in accumulated actuarial losses/profits	€ 21
Spain
Items not reclassified to profit or loss
Decrease (increase) in accumulated actuarial losses/profits	€ 13
Discount rates	4%	3.80%

Equity - Schedule of changes in

Equity - Schedule of changes in fair value of equity instruments that will not be reclassified (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Items not reclassified to profit or loss
Net revaluation gains/(losses)	€ (859)	€ (672)
Fair value	86,756	85,239
Equity instruments
Items not reclassified to profit or loss
Revaluation gains	468	373
Revaluation losses	(1,327)	(1,045)
Net revaluation gains/(losses)	(859)	(672)
Fair value	1,729	1,941
Domestic | Spain
Items not reclassified to profit or loss
Revaluation gains	31	30
Revaluation losses	(1,172)	(926)
Net revaluation gains/(losses)	(1,141)	(896)
Fair value	251	500
International | Rest of Europe
Items not reclassified to profit or loss
Revaluation gains	110	84
Revaluation losses	(67)	(60)
Net revaluation gains/(losses)	43	24
Fair value	271	225
International | United States
Items not reclassified to profit or loss
Revaluation gains	18	15
Revaluation losses	0	0
Net revaluation gains/(losses)	18	15
Fair value	24	29
International | Latin America and rest
Items not reclassified to profit or loss
Revaluation gains	309	244
Revaluation losses	(88)	(59)
Net revaluation gains/(losses)	221	185
Fair value	1,183	1,187
Listed
Items not reclassified to profit or loss
Revaluation gains	311	246
Revaluation losses	(138)	(113)
Net revaluation gains/(losses)	173	133
Fair value	1,191	1,200
Unlisted
Items not reclassified to profit or loss
Revaluation gains	157	127
Revaluation losses	(1,189)	(932)
Net revaluation gains/(losses)	(1,032)	(805)
Fair value	€ 538	€ 741

Equity - Other comprehensive _2

Equity - Other comprehensive income, items that may be reclassified to profit or loss – Hedges of net investments in foreign operations and exchange differences (Details) € in Millions	6 Months Ended
	Jun. 30, 2023 EUR (€)
Equity [abstract]
Increase in goodwill due to exchange differences and other items	€ 392

Equity - Schedule of other co_2

Equity - Schedule of other comprehensive income, that may be reclassified to profit or loss, by type of instrument and geographical origin of the issuer (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Financial assets at fair value through other comprehensive income [abstract]
Net revaluation gains/(losses)	€ (563)	€ (1,002)
Fair value	86,756	85,239
Debt instruments
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	763	517
Revaluation losses	(1,326)	(1,519)
Net revaluation gains/(losses)	(563)	(1,002)
Fair value	85,027	83,298
Issued by public Public-sector | Spain
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	110	26
Revaluation losses	(1)	(1)
Net revaluation gains/(losses)	109	25
Fair value	9,544	9,312
Issued by public Public-sector | Rest of Europe
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	355	268
Revaluation losses	(140)	(199)
Net revaluation gains/(losses)	215	69
Fair value	18,607	17,593
Issued by public Public-sector | Latin America and rest of the world
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	177	196
Revaluation losses	(843)	(937)
Net revaluation gains/(losses)	(666)	(741)
Fair value	40,351	40,873
Issued by Private-sector | Spain
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	82	0
Revaluation losses	(3)	(24)
Net revaluation gains/(losses)	79	(24)
Fair value	6,277	5,727
Issued by Private-sector | Rest of Europe
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	12	11
Revaluation losses	(56)	(68)
Net revaluation gains/(losses)	(44)	(57)
Fair value	5,157	5,203
Issued by Private-sector | Latin America and rest of the world
Financial assets at fair value through other comprehensive income [abstract]
Revaluation gains	27	16
Revaluation losses	(283)	(290)
Net revaluation gains/(losses)	(256)	(274)
Fair value	€ 5,091	€ 4,590

Equity - Other comprehensive _3

Equity - Other comprehensive income, items that may be reclassified to profit or loss – Changes in the fair value of debt instruments measured at fair value through other comprehensive income (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Items not reclassified to profit or loss
Financial assets at amortised cost	€ 1,180,302	€ 1,147,044
Debt instruments
Items not reclassified to profit or loss
Financial assets at amortised cost	€ 91,559	€ 73,554

Segment information (Primary _3

Segment information (Primary segment) - Disclosure of reconciliation between adjusted profit and statutory profit (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating segments
Revenue from  ordinary activities	€ 59,700	€ 42,984
Profit before taxes	8,090	7,915
Profit	5,241	4,894
Underlying Profit
Operating segments
Revenue from  ordinary activities	59,700	42,984
Profit before taxes	8,329	7,915
Profit	5,241	4,894
Adjustments
Operating segments
Revenue from  ordinary activities	0	0
Profit before taxes	(239)	0
Profit	0	0
Europe | Underlying Profit
Operating segments
Revenue from  ordinary activities	19,391	13,649
Profit before taxes	3,888	2,693
Profit	2,536	1,839
North America | Underlying Profit
Operating segments
Revenue from  ordinary activities	13,966	8,154
Profit before taxes	1,739	2,061
Profit	1,346	1,578
South America | Underlying Profit
Operating segments
Revenue from  ordinary activities	20,461	17,613
Profit before taxes	2,376	3,165
Profit	1,458	1,946
Digital Consumer Bank | Underlying Profit
Operating segments
Revenue from  ordinary activities	4,761	3,395
Profit before taxes	928	1,010
Profit	521	572
Corporate Centre | Underlying Profit
Operating segments
Revenue from  ordinary activities	1,121	173
Profit before taxes	(602)	(1,014)
Profit	€ (620)	€ (1,041)

Segment information (Primary _4

Segment information (Primary segment) - Narrative (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating segments
Restructuring costs	€ (1,330)	€ (935)

Related parties (Details)

Related parties (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Expenses
Finance costs	€ 79	€ 16
Leases	0	0
Services received	0	0
Purchases of stocks	0	0
Other expenses	57	197
Total expenses	136	213
Income
Finance income	191	71
Dividends received	0	0
Services rendered	0	0
Sale of stocks	0	0
Other income	710	684
Total income	901	755
Debt balances:
Customers and commercial debtors	0		€ 0
Loans and credits granted	9,956		9,779
Other collection rights	969		946
Debit balances	10,925		10,725
Credit balances:
Suppliers and creditors granted	0		0
Loans and credits received	3,346		3,370
Other payment obligations	358		372
Credit balances	3,704		3,742
Other transactions
Other transactions
Financing agreements: loans and capital contributions (lender)	179	741
Financing agreements: loans and capital contributions (borrower)	(22)	411
Guarantees provided	680	0
Guarantees received	0	0
Commitments acquired	54	(14)
Dividends and other distributed profit	11	10
Other transactions	36	(106)
Significant shareholders
Expenses
Finance costs	0	0
Leases	0	0
Services received	0	0
Purchases of stocks	0	0
Other expenses	0	0
Total expenses	0	0
Income
Finance income	0	0
Dividends received	0	0
Services rendered	0	0
Sale of stocks	0	0
Other income	0	0
Total income	0	0
Debt balances:
Customers and commercial debtors	0		0
Loans and credits granted	0		0
Other collection rights	0		0
Debit balances	0		0
Credit balances:
Suppliers and creditors granted	0		0
Loans and credits received	0		0
Other payment obligations	0		0
Credit balances	0		0
Significant shareholders | Other transactions
Other transactions
Financing agreements: loans and capital contributions (lender)	0	0
Financing agreements: loans and capital contributions (borrower)	0	0
Guarantees provided	0	0
Guarantees received	0	0
Commitments acquired	0	0
Dividends and other distributed profit	0	0
Other transactions	0	0
Directors and executives
Expenses
Finance costs	0	0
Leases	0	0
Services received	0	0
Purchases of stocks	0	0
Other expenses	0	0
Total expenses	0	0
Income
Finance income	0	0
Dividends received	0	0
Services rendered	0	0
Sale of stocks	0	0
Other income	0	0
Total income	0	0
Debt balances:
Customers and commercial debtors	0		0
Loans and credits granted	13		13
Other collection rights	0		0
Debit balances	13		13
Credit balances:
Suppliers and creditors granted	0		0
Loans and credits received	21		22
Other payment obligations	0		0
Credit balances	21		22
Directors and executives | Other transactions
Other transactions
Financing agreements: loans and capital contributions (lender)	2	0
Financing agreements: loans and capital contributions (borrower)	0	9
Guarantees provided	0	0
Guarantees received	0	0
Commitments acquired	0	0
Dividends and other distributed profit	1	1
Other transactions	0	0
Group companies or entities
Expenses
Finance costs	79	16
Leases	0	0
Services received	0	0
Purchases of stocks	0	0
Other expenses	57	197
Total expenses	136	213
Income
Finance income	188	71
Dividends received	0	0
Services rendered	0	0
Sale of stocks	0	0
Other income	709	683
Total income	897	754
Debt balances:
Customers and commercial debtors	0		0
Loans and credits granted	9,687		9,311
Other collection rights	969		946
Debit balances	10,656		10,257
Credit balances:
Suppliers and creditors granted	0		0
Loans and credits received	3,210		3,239
Other payment obligations	358		372
Credit balances	3,568		3,611
Group companies or entities | Other transactions
Other transactions
Financing agreements: loans and capital contributions (lender)	376	715
Financing agreements: loans and capital contributions (borrower)	(29)	362
Guarantees provided	0	0
Guarantees received	0	0
Commitments acquired	51	(12)
Dividends and other distributed profit	0	0
Other transactions	36	(106)
Other related parties
Expenses
Finance costs	0	0
Leases	0	0
Services received	0	0
Purchases of stocks	0	0
Other expenses	0	0
Total expenses	0	0
Income
Finance income	3	0
Dividends received	0	0
Services rendered	0	0
Sale of stocks	0	0
Other income	1	1
Total income	4	1
Debt balances:
Customers and commercial debtors	0		0
Loans and credits granted	256		455
Other collection rights	0		0
Debit balances	256		455
Credit balances:
Suppliers and creditors granted	0		0
Loans and credits received	115		109
Other payment obligations	0		0
Credit balances	115		€ 109
Other related parties | Other transactions
Other transactions
Financing agreements: loans and capital contributions (lender)	(199)	26
Financing agreements: loans and capital contributions (borrower)	7	40
Guarantees provided	680	0
Guarantees received	0	0
Commitments acquired	3	(2)
Dividends and other distributed profit	10	9
Other transactions	€ 0	€ 0

Off-balance-sheet exposures - S

Off-balance-sheet exposures - Schedule of contingent commitments (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Loan commitments granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	€ 283,903	€ 274,075
Financial guarantees granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	14,401	12,856
Bank sureties
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	14,355	12,813
Credit derivatives sold
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	46	43
Other commitments granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	113,266	92,672
Other granted guarantees
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	53,651	50,508
Other
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	59,615	42,164
Impaired assets | Loan commitments granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	509	653
Impaired assets | Financial guarantees granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	538	521
Impaired assets | Other commitments granted
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	€ 607	€ 608

Off-balance-sheet exposures - N

Off-balance-sheet exposures - Narrative (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Other assets | Next 12 months
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	€ 402,019	€ 370,729
Other assets | Next 12 months | Contingent liabilities and commitments
Disclosure of contingent liabilities [line items]
Other provisions	332	331
Other assets | Lifetime expected credit losses
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	7,897	7,092
Other assets | Lifetime expected credit losses | Contingent liabilities and commitments
Disclosure of contingent liabilities [line items]
Other provisions	184	191
Impaired assets | Lifetime expected credit losses
Disclosure of contingent liabilities [line items]
Exposure to credit risk on loan commitments	1,654	1,782
Impaired assets | Lifetime expected credit losses | Contingent liabilities and commitments
Disclosure of contingent liabilities [line items]
Other provisions	€ 240	€ 212

Average headcount and number _3

Average headcount and number of branches - Schedule of average number of employees (Details) - employees	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Number of employees
Men	97,353	90,747
Women	112,663	109,055
Average number of employees	210,016	199,802
Bank
Number of employees
Men	12,260	11,867
Women	11,732	11,355
Average number of employees	23,992	23,222

Average headcount and number _4

Average headcount and number of branches - Schedule of number of branches (Details) - offices	Jun. 30, 2023	Dec. 31, 2022
Disclosure of geographical areas [line items]
Number of offices	8,823	9,019
Spain
Disclosure of geographical areas [line items]
Number of offices	1,936	1,966
Group
Disclosure of geographical areas [line items]
Number of offices	6,887	7,053

Other disclosures - Summary of

Other disclosures - Summary of fair values of financial assets and liabilities (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	€ 820	€ 925	€ 630	€ 629
Financial assets and liabilities, category | Financial liabilities held for trading
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	134,888	115,185
Financial assets and liabilities, category | Financial liabilities held for trading | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	15,195	16,237
Financial assets and liabilities, category | Financial liabilities held for trading | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	119,693	98,948
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	36,220	40,268
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*) | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	147	212
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*) | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	36,073	40,056
Financial assets and liabilities, category | Hedging derivatives
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	10,288	9,228
Financial assets and liabilities, category | Hedging derivatives | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Hedging derivatives | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	10,288	9,228
Financial assets and liabilities, category | Financial assets held for trading
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	183,834	156,118
Financial assets and liabilities, category | Financial assets held for trading | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	61,089	45,014
Financial assets and liabilities, category | Financial assets held for trading | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	122,745	111,104
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	5,796	5,713
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	1,738	1,800
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	4,058	3,913
Financial assets and liabilities, category | Financial assets at fair value through profit and loss
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	9,645	8,989
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	2,491	1,976
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	7,154	7,013
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	86,756	85,239
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	65,596	64,216
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	21,160	21,023
Financial assets and liabilities, category | Hedging derivatives
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	7,532	8,069
Financial assets and liabilities, category | Hedging derivatives | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Hedging derivatives | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	7,532	8,069
Liabilities under insurance contracts
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	17,584	16,426
Liabilities under insurance contracts | Published price quotations in active markets (Level 1)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	0	0
Liabilities under insurance contracts | Internal models (Levels 2 and 3)
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	€ 17,584	€ 16,426

Other disclosures - Valuation t

Other disclosures - Valuation techniques for financial assets and liabilities (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Disclosure of detailed information about financial instruments [line items]
Amount of CVA	€ 299
Change in CVA (as a percent)	14.80%
Amount of DVA	€ 364
Change in DVA (as a percent)	0%
Level 3
Disclosure of detailed information about financial instruments [line items]
Gains (losses) recognised in profit or loss	€ 178	€ 19

Other disclosures - Schedule of

Other disclosures - Schedule of financial instruments at fair value whose measurement was based on internal models (Levels 2 and 3) (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	€ 820	€ 925	€ 630	€ 629
Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	152,661	142,832
Financial liabilities, at fair value	182,818	163,733
Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	9,988	8,290	7,661	7,667
Financial liabilities, at fair value	820	925
Financial liabilities held for trading | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	402	415	211	160
Financial liabilities held for trading | Exchange rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0	0	7
Financial liabilities held for trading | Interest rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	22	19	32	26
Financial liabilities held for trading | Index and securities options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	63	42	0	67
Financial liabilities held for trading | Interest rate and equity futures | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value			0	0
Financial liabilities held for trading | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	184	119	58	16
Financial liabilities designated at fair value through profit or loss (*) | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	151	150	151
Financial assets held for trading | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,040	383	517	537
Financial assets held for trading | Derivatives | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	481	340	488	513
Financial assets held for trading | Swaps | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	217	139	216	224
Financial assets held for trading | Exchange rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	3	4	13	12
Financial assets held for trading | Interest rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	29	39	83	182
Financial assets held for trading | Index and securities options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	85	48	2	41
Financial assets held for trading | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	147	110	174	54
Financial assets held for trading | Equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1	1	1	2
Financial assets held for trading | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	413	42	28	22
Non-trading financial assets mandatorily at fair value through profit or loss | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,912	1,833	1,945	1,865
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	228	239	319	268
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,347	1,269	1,315	1,231
Non-trading financial assets mandatorily at fair value through profit or loss | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	337	325	311	366
Financial assets at fair value through profit and loss | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	417	427	494	418
Financial assets at fair value through profit and loss | Credit institutions | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value			0	0
Financial assets at fair value through profit and loss | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5	5	13	18
Financial assets at fair value through profit and loss | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	412	422	481	400
Financial assets at fair value through other comprehensive income | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	6,618	5,647	4,705	4,847
Financial assets at fair value through other comprehensive income | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5,859	4,718	3,788	3,880
Financial assets at fair value through other comprehensive income | Equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	496	700	700	821
Financial assets at fair value through other comprehensive income | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	263	229	€ 217	€ 146
Financial assets and liabilities, category | Financial liabilities held for trading
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	134,888	115,185
Financial assets and liabilities, category | Financial liabilities held for trading | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	119,291	98,533
Financial assets and liabilities, category | Financial liabilities held for trading | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	402	415
Financial assets and liabilities, category | Financial liabilities held for trading | Central Banks | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	16,216	5,759
Financial assets and liabilities, category | Financial liabilities held for trading | Central Banks | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities held for trading | Credit institutions | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	14,140	9,796
Financial assets and liabilities, category | Financial liabilities held for trading | Credit institutions | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities held for trading | Loans and advances to customers | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	19,921	12,226
Financial assets and liabilities, category | Financial liabilities held for trading | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities held for trading | Derivatives | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	61,567	64,147
Financial assets and liabilities, category | Financial liabilities held for trading | Derivatives | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	402	415
Financial assets and liabilities, category | Financial liabilities held for trading | Swaps | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	47,317	51,191
Financial assets and liabilities, category | Financial liabilities held for trading | Swaps | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	133	235
Financial assets and liabilities, category | Financial liabilities held for trading | Exchange rate options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	1,182	769
Financial assets and liabilities, category | Financial liabilities held for trading | Exchange rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities held for trading | Interest rate options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	4,524	3,268
Financial assets and liabilities, category | Financial liabilities held for trading | Interest rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	22	19
Financial assets and liabilities, category | Financial liabilities held for trading | Index and securities options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	599	591
Financial assets and liabilities, category | Financial liabilities held for trading | Index and securities options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	63	42
Financial assets and liabilities, category | Financial liabilities held for trading | Interest rate and equity futures | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	32	807
Financial assets and liabilities, category | Financial liabilities held for trading | Interest rate and equity futures | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities held for trading | Other | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	7,913	7,521
Financial assets and liabilities, category | Financial liabilities held for trading | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	184	119
Financial assets and liabilities, category | Financial liabilities held for trading | Short Positions | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	7,447	6,605
Financial assets and liabilities, category | Financial liabilities held for trading | Short Positions | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Hedging derivatives
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	10,288	9,228
Financial assets and liabilities, category | Hedging derivatives | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	10,235	9,214
Financial assets and liabilities, category | Hedging derivatives | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	53	14
Financial assets and liabilities, category | Hedging derivatives | Swaps | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	8,598	8,142
Financial assets and liabilities, category | Hedging derivatives | Swaps | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	53	14
Financial assets and liabilities, category | Hedging derivatives | Other | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	1,637	1,072
Financial assets and liabilities, category | Hedging derivatives | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	0
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*)
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	36,220	40,268
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*) | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	36,073	39,905
Financial assets and liabilities, category | Financial liabilities designated at fair value through profit or loss (*) | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	0	151
Financial assets and liabilities, category | Financial assets held for trading
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	183,834	156,118
Financial assets and liabilities, category | Financial assets held for trading | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	121,705	110,721
Financial assets and liabilities, category | Financial assets held for trading | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,040	383
Financial assets and liabilities, category | Financial assets held for trading | Central Banks | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	12,405	11,595
Financial assets and liabilities, category | Financial assets held for trading | Central Banks | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Financial assets held for trading | Credit institutions | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	23,592	16,502
Financial assets and liabilities, category | Financial assets held for trading | Credit institutions | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Financial assets held for trading | Loans and advances to customers | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	10,906	9,550
Financial assets and liabilities, category | Financial assets held for trading | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	145	0
Financial assets and liabilities, category | Financial assets held for trading | Debt instruments and equity instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	7,804	6,537
Financial assets and liabilities, category | Financial assets held for trading | Debt instruments and equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	414	43
Financial assets and liabilities, category | Financial assets held for trading | Derivatives | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	66,998	66,537
Financial assets and liabilities, category | Financial assets held for trading | Derivatives | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	481	340
Financial assets and liabilities, category | Financial assets held for trading | Swaps | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	52,475	54,367
Financial assets and liabilities, category | Financial assets held for trading | Swaps | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	217	139
Financial assets and liabilities, category | Financial assets held for trading | Exchange rate options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,229	916
Financial assets and liabilities, category | Financial assets held for trading | Exchange rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	3	4
Financial assets and liabilities, category | Financial assets held for trading | Interest rate options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	4,083	2,681
Financial assets and liabilities, category | Financial assets held for trading | Interest rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	29	39
Financial assets and liabilities, category | Financial assets held for trading | Interest rate futures | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	29	113
Financial assets and liabilities, category | Financial assets held for trading | Interest rate futures | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Financial assets held for trading | Index and securities options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	339	354
Financial assets and liabilities, category | Financial assets held for trading | Index and securities options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	85	48
Financial assets and liabilities, category | Financial assets held for trading | Other | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	8,843	8,106
Financial assets and liabilities, category | Financial assets held for trading | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	147	110
Financial assets and liabilities, category | Hedging derivatives
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	7,532	8,069
Financial assets and liabilities, category | Hedging derivatives | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	7,531	8,069
Financial assets and liabilities, category | Hedging derivatives | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1	0
Financial assets and liabilities, category | Hedging derivatives | Swaps | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	6,828	6,687
Financial assets and liabilities, category | Hedging derivatives | Swaps | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1	0
Financial assets and liabilities, category | Hedging derivatives | Interest rate options | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	2	2
Financial assets and liabilities, category | Hedging derivatives | Interest rate options | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Hedging derivatives | Other | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	701	1,380
Financial assets and liabilities, category | Hedging derivatives | Other | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5,796	5,713
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	2,146	2,080
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,912	1,833
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	970	643
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	1,347	1,269
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Debt instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	551	809
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	337	325
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	625	628
Financial assets and liabilities, category | Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	228	239
Financial assets and liabilities, category | Financial assets at fair value through profit and loss
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	9,645	8,989
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	6,737	6,586
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	417	427
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Credit institutions | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	626	673
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Credit institutions | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	0	0
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Loans and advances to customers | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5,925	5,769
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Loans and advances to customers | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5	5
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Debt instruments and equity instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	186	144
Financial assets and liabilities, category | Financial assets at fair value through profit and loss | Debt instruments and equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	412	422
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	86,756	85,239
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	14,542	15,376
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	6,618	5,647
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Equity instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	11	9
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Equity instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	496	700
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Debt instruments | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	11,373	11,869
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Debt instruments | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	263	229
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Loans and advances | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	3,158	3,498
Financial assets and liabilities, category | Financial assets at fair value through other comprehensive income | Loans and advances | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial assets, at fair value	5,859	4,718
Liabilities under insurance contracts
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	17,584	16,426
Liabilities under insurance contracts | Level 2
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	17,219	16,081
Liabilities under insurance contracts | Level 3
Measurement of financial assets and liabilities and recognition of fair value changes
Financial liabilities, at fair value	€ 365	€ 345

Other disclosures - Schedule _2

Other disclosures - Schedule of effect on fair value of financial instruments classified as Level 3 of a reasonable change in the assumptions used in the valuation (Details) - Level 3 € in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Other Valuation Technique | Unfavourable Scenario | Financial liabilities designated at fair value through profit or loss (*) | Repos / Reverse Repos
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value liabilities due to changes in inputs		€ (130)
Other Valuation Technique | Favourable Scenario | Financial liabilities designated at fair value through profit or loss (*) | Repos / Reverse Repos
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of liabilities due to change in inputs		0
Local volatility | Unfavourable Scenario | Financial liabilities held for trading | Caps/Floors
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value liabilities due to changes in inputs	€ (770)	(290)
Local volatility | Favourable Scenario | Financial liabilities held for trading | Caps/Floors
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of liabilities due to change in inputs	€ 300	€ 180
Minimum | Volatility | Local volatility | Financial liabilities held for trading | Caps/Floors
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, liabilities	0.10	0.10
Maximum | Volatility | Local volatility | Financial liabilities held for trading | Caps/Floors
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, liabilities	0.90	0.90
Weighted average | Volatility | Local volatility | Financial liabilities held for trading | Caps/Floors
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, liabilities	0.3237	0.4073
Repos / Reverse Repos | Other Valuation Technique | Favourable Scenario | Financial assets held for trading
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 0
Financial assets held for trading | Repos / Reverse Repos | Other Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(40)
Financial assets held for trading | Corporate Debt | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(1,510)	€ (1,380)
Financial assets held for trading | Corporate Debt | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	1,540	1,400
Financial assets held for trading | Corporate Debt | Price Based Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	0	0
Financial assets held for trading | Corporate Debt | Price Based Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 0	€ 0
Financial assets held for trading | Corporate Debt | Minimum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Corporate Debt | Minimum | Market price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.85	0.85
Financial assets held for trading | Corporate Debt | Maximum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.10	0.20
Financial assets held for trading | Corporate Debt | Maximum | Market price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1.15	1.15
Financial assets held for trading | Corporate Debt | Weighted average | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0504	0.1007
Financial assets held for trading | Corporate Debt | Weighted average | Market price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1	1
Financial assets held for trading | Government debt | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (8,250)	€ (8,340)
Financial assets held for trading | Government debt | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 7,970	€ 8,070
Financial assets held for trading | Government debt | Minimum | Discount curve | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Government debt | Maximum | Discount curve | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.08	0.10
Financial assets held for trading | Government debt | Weighted average | Discount curve | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0393	0.0492
Financial assets held for trading | Currency swap contract | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ 0	€ 0
Financial assets held for trading | Currency swap contract | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	0	0
Financial assets held for trading | Currency swap contract | Forward Estimation Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(40)	(60)
Financial assets held for trading | Currency swap contract | Forward Estimation Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 70	€ 70
Financial assets held for trading | Currency swap contract | Minimum | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.014)	(0.0070)
Financial assets held for trading | Currency swap contract | Minimum | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.0006)	(0.0004)
Financial assets held for trading | Currency swap contract | Maximum | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.014	0.0070
Financial assets held for trading | Currency swap contract | Maximum | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0006	0.0004
Financial assets held for trading | Currency swap contract | Weighted average | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Currency swap contract | Weighted average | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.000232	0.000042
Financial assets held for trading | Credit Default Swap | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		€ (50)
Financial assets held for trading | Credit Default Swap | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		€ 20
Financial assets held for trading | Credit Default Swap | Minimum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.001490
Financial assets held for trading | Credit Default Swap | Maximum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.004210
Financial assets held for trading | Credit Default Swap | Weighted average | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.002199
Financial assets held for trading | EQ Options | EQ Option Pricing Model Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (380)	€ (230)
Financial assets held for trading | EQ Options | EQ Option Pricing Model Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	840	480
Financial assets held for trading | EQ Options | Local Volatility Option Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(1,910)	(1,050)
Financial assets held for trading | EQ Options | Local Volatility Option Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 1,910	€ 1,050
Financial assets held for trading | EQ Options | Minimum | Volatility | EQ Option Pricing Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | EQ Options | Minimum | Volatility | Local Volatility Option Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.10	0.10
Financial assets held for trading | EQ Options | Maximum | Volatility | EQ Option Pricing Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.90	0.90
Financial assets held for trading | EQ Options | Maximum | Volatility | Local Volatility Option Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.90	0.90
Financial assets held for trading | EQ Options | Weighted average | Volatility | EQ Option Pricing Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.6130	0.6130
Financial assets held for trading | EQ Options | Weighted average | Volatility | Local Volatility Option Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.5000	0.5000
Financial assets held for trading | Forward Rate Agreement | Asset Swap Model Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (940)	€ (1,160)
Financial assets held for trading | Forward Rate Agreement | Asset Swap Model Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 780	€ 950
Financial assets held for trading | Forward Rate Agreement | Minimum | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Forward Rate Agreement | Maximum | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.06	0.06
Financial assets held for trading | Forward Rate Agreement | Weighted average | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0271	0.0271
Financial assets held for trading | Foreign Exchange Swap | Other Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		€ (1,370)
Financial assets held for trading | Foreign Exchange Swap | Other Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		1,370
Financial assets held for trading | Inflation Derivatives | Asset Swap Model Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (290)	(210)
Financial assets held for trading | Inflation Derivatives | Asset Swap Model Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 150	110
Financial assets held for trading | Inflation Derivatives | Local volatility | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		(140)
Financial assets held for trading | Inflation Derivatives | Local volatility | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		€ 110
Financial assets held for trading | Inflation Derivatives | Minimum | Volatility | Local volatility
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0
Financial assets held for trading | Inflation Derivatives | Minimum | Inflation Swap Rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Inflation Derivatives | Maximum | Volatility | Local volatility
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.40
Financial assets held for trading | Inflation Derivatives | Maximum | Inflation Swap Rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.10	0.10
Financial assets held for trading | Inflation Derivatives | Weighted average | Volatility | Local volatility
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.1737
Financial assets held for trading | Inflation Derivatives | Weighted average | Inflation Swap Rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0341	0.0341
Financial assets held for trading | IR Options | Interest Rate Option Pricing Model | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (260)	€ (300)
Financial assets held for trading | IR Options | Interest Rate Option Pricing Model | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 380	€ 440
Financial assets held for trading | IR Options | Minimum | Volatility | Interest Rate Option Pricing Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | IR Options | Maximum | Volatility | Interest Rate Option Pricing Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.60	0.60
Financial assets held for trading | IR Options | Weighted average | Volatility | Interest Rate Option Pricing Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.3582	0.3582
Financial assets held for trading | Interest rate swap contract | Forward Estimation Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (40)	€ (40)
Financial assets held for trading | Interest rate swap contract | Forward Estimation Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	50	40
Financial assets held for trading | Interest rate swap contract | Asset Swap Model Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(50)	(50)
Financial assets held for trading | Interest rate swap contract | Asset Swap Model Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	80	80
Financial assets held for trading | Interest rate swap contract | Other Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(690)	(11,580)
Financial assets held for trading | Interest rate swap contract | Other Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	280	0
Financial assets held for trading | Interest rate swap contract | Discounted Cash Flows on credit spread | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(1,800)	(2,250)
Financial assets held for trading | Interest rate swap contract | Discounted Cash Flows on credit spread | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	1,950	2,470
Financial assets held for trading | Interest rate swap contract | Discounted Cash Flows on swap rate | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(540)	(20)
Financial assets held for trading | Interest rate swap contract | Discounted Cash Flows on swap rate | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	530	30
Financial assets held for trading | Interest rate swap contract | Prepayment Modeling Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	0	(60)
Financial assets held for trading | Interest rate swap contract | Prepayment Modeling Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 160	€ 50
Financial assets held for trading | Interest rate swap contract | Minimum | Credit spread | Discounted Cash Flows on credit spread
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.011	0.0125
Financial assets held for trading | Interest rate swap contract | Minimum | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.0006)	(0.0006)
Financial assets held for trading | Interest rate swap contract | Minimum | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Interest rate swap contract | Minimum | Swap rate | Discounted Cash Flows on swap rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.082	0.086
Financial assets held for trading | Interest rate swap contract | Minimum | Others | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.05	0.05
Financial assets held for trading | Interest rate swap contract | Minimum | Prepayment rate | Prepayment Modeling Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.031	0.025
Financial assets held for trading | Interest rate swap contract | Maximum | Credit spread | Discounted Cash Flows on credit spread
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.058	0.0629
Financial assets held for trading | Interest rate swap contract | Maximum | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0006	0.0006
Financial assets held for trading | Interest rate swap contract | Maximum | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.15	0.15
Financial assets held for trading | Interest rate swap contract | Maximum | Swap rate | Discounted Cash Flows on swap rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.087	0.091
Financial assets held for trading | Interest rate swap contract | Maximum | Prepayment rate | Prepayment Modeling Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.057	0.062
Financial assets held for trading | Interest rate swap contract | Weighted average | Credit spread | Discounted Cash Flows on credit spread
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0367	0.0389
Financial assets held for trading | Interest rate swap contract | Weighted average | Interest rate | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.000012	0.000013
Financial assets held for trading | Interest rate swap contract | Weighted average | Interest rate | Asset Swap Model Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0920	0.0920
Financial assets held for trading | Interest rate swap contract | Weighted average | Swap rate | Discounted Cash Flows on swap rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0844	0.0884
Financial assets held for trading | Interest rate swap contract | Weighted average | Prepayment rate | Prepayment Modeling Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0433	0.0417
Financial assets held for trading | Other Derivatives | Forward Estimation Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (460)	€ (530)
Financial assets held for trading | Other Derivatives | Forward Estimation Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 200	€ 240
Financial assets held for trading | Other Derivatives | Minimum | Price | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets held for trading | Other Derivatives | Maximum | Price | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.02	0.02
Financial assets held for trading | Other Derivatives | Weighted average | Price | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0062	0.0062
Financial assets held for trading | Property Derivatives | Option pricing model | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (4,080)	€ (5,750)
Financial assets held for trading | Property Derivatives | Option pricing model | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 4,080	€ 5,750
Financial assets held for trading | Property Derivatives | Minimum | Growth rate | Option pricing model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.05)	(0.05)
Financial assets held for trading | Property Derivatives | Maximum | Growth rate | Option pricing model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.05	0.05
Financial assets held for trading | Property Derivatives | Weighted average | Growth rate | Option pricing model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets at fair value through profit and loss | Repos / Reverse Repos | Other Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ 0
Financial assets at fair value through profit and loss | Repos / Reverse Repos | Other Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 0
Financial assets at fair value through profit and loss | Repos / Reverse Repos | Minimum | Repo Curve, Measurement Input | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.00048
Financial assets at fair value through profit and loss | Repos / Reverse Repos | Maximum | Repo Curve, Measurement Input | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.00067
Financial assets at fair value through profit and loss | Repos / Reverse Repos | Weighted average | Repo Curve, Measurement Input | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.000563
Financial assets at fair value through profit and loss | Loans | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (150)	€ (180)
Financial assets at fair value through profit and loss | Loans | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 150	€ 180
Financial assets at fair value through profit and loss | Loans | Minimum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.001	0.001
Financial assets at fair value through profit and loss | Loans | Maximum | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.02	0.02
Financial assets at fair value through profit and loss | Loans | Weighted average | Credit spread | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0105	0.0105
Financial assets at fair value through profit and loss | Mortgage Portfolio | Black Scholes Model | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (470)	€ (790)
Financial assets at fair value through profit and loss | Mortgage Portfolio | Black Scholes Model | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 470	€ 790
Financial assets at fair value through profit and loss | Mortgage Portfolio | Minimum | Growth rate | Black Scholes Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.05)	(0.05)
Financial assets at fair value through profit and loss | Mortgage Portfolio | Maximum | Growth rate | Black Scholes Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.05	0.05
Financial assets at fair value through profit and loss | Mortgage Portfolio | Weighted average | Growth rate | Black Scholes Model
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets at fair value through profit and loss | Other Debt Securities | Other Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (4,510)	€ (4,250)
Financial assets at fair value through profit and loss | Other Debt Securities | Other Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 4,240	€ 3,830
Financial assets at fair value through profit and loss | Other Debt Securities | Minimum | Inflation Swap Rate | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets at fair value through profit and loss | Other Debt Securities | Maximum | Inflation Swap Rate | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.08	0.10
Financial assets at fair value through profit and loss | Other Debt Securities | Weighted average | Inflation Swap Rate | Other Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0388	0.0474
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		€ (330)
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		330
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Probability Weighting Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		(680)
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Probability Weighting Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		€ 680
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Minimum | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		(0.05)
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Minimum | Margin of a reference portfolio | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		(0.0001)
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Maximum | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.05
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Maximum | Margin of a reference portfolio | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.0001
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Weighted average | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0
Non-trading financial assets mandatorily at fair value through profit or loss | Corporate Debt | Weighted average | Margin of a reference portfolio | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.000001
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Price Based Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (134,660)	€ (126,870)
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Price Based Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 134,660	€ 126,870
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Minimum | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.90	0.90
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Maximum | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1.10	1.10
Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments | Weighted average | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1	1
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Probability Weighting Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (470)
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Probability Weighting Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 470
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Minimum | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.05
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Maximum | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.05
Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances to customers | Weighted average | Growth rate | Probability Weighting Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0
Financial assets at fair value through other comprehensive income | Corporate Debt | Discounted Cash Flows On Margin Of A Reference Portfolio | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (520)
Financial assets at fair value through other comprehensive income | Corporate Debt | Discounted Cash Flows On Margin Of A Reference Portfolio | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 520
Financial assets at fair value through other comprehensive income | Corporate Debt | Minimum | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.0001)
Financial assets at fair value through other comprehensive income | Corporate Debt | Maximum | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0001
Financial assets at fair value through other comprehensive income | Corporate Debt | Weighted average | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0
Financial assets at fair value through other comprehensive income | Government debt | Discounted cash flow | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs		€ (10)
Financial assets at fair value through other comprehensive income | Government debt | Discounted cash flow | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs		€ 10
Financial assets at fair value through other comprehensive income | Government debt | Interest rate | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (10)
Financial assets at fair value through other comprehensive income | Government debt | Interest rate | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 10
Financial assets at fair value through other comprehensive income | Government debt | Minimum | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		(0.004)
Financial assets at fair value through other comprehensive income | Government debt | Minimum | Interest rate | Interest rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.019)
Financial assets at fair value through other comprehensive income | Government debt | Maximum | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.016
Financial assets at fair value through other comprehensive income | Government debt | Maximum | Interest rate | Interest rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.001
Financial assets at fair value through other comprehensive income | Government debt | Weighted average | Interest rate | Discounted cash flow
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets		0.0063
Financial assets at fair value through other comprehensive income | Government debt | Weighted average | Interest rate | Interest rate
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.0087)
Financial assets at fair value through other comprehensive income | Loans | Forward Estimation Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (680)	€ (490)
Financial assets at fair value through other comprehensive income | Loans | Forward Estimation Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	0	0
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows on credit spread | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(22,170)	(24,100)
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows on credit spread | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	0	0
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows On Interest Rate Curve | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(860)	(80)
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows On Interest Rate Curve | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	860	80
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows On Margin Of A Reference Portfolio | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	(22,800)	(17,510)
Financial assets at fair value through other comprehensive income | Loans | Discounted Cash Flows On Margin Of A Reference Portfolio | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 22,800	€ 17,510
Financial assets at fair value through other comprehensive income | Loans | Minimum | Credit spread | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0168	0.0256
Financial assets at fair value through other comprehensive income | Loans | Minimum | Interest rate | Discounted Cash Flows On Interest Rate Curve
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.08	0.008
Financial assets at fair value through other comprehensive income | Loans | Minimum | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	(0.0001)	(0.0001)
Financial assets at fair value through other comprehensive income | Loans | Maximum | Credit spread | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.027	0.0340
Financial assets at fair value through other comprehensive income | Loans | Maximum | Interest rate | Discounted Cash Flows On Interest Rate Curve
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.09	0.010
Financial assets at fair value through other comprehensive income | Loans | Maximum | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0001	0.0001
Financial assets at fair value through other comprehensive income | Loans | Weighted average | Credit spread | Forward Estimation Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0168	0.0256
Financial assets at fair value through other comprehensive income | Loans | Weighted average | Interest rate | Discounted Cash Flows On Interest Rate Curve
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.0860	0.0088
Financial assets at fair value through other comprehensive income | Loans | Weighted average | Margin of a reference portfolio | Discounted Cash Flows On Margin Of A Reference Portfolio
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0	0
Financial assets at fair value through other comprehensive income | Equity instruments | Price Based Valuation Technique | Unfavourable Scenario
Disclosure of detailed information about financial instruments [line items]
Decrease in fair value assets due to changes in inputs	€ (49,630)	€ (70,040)
Financial assets at fair value through other comprehensive income | Equity instruments | Price Based Valuation Technique | Favourable Scenario
Disclosure of detailed information about financial instruments [line items]
Increase in fair value of assets due to change in inputs	€ 49,630	€ 70,040
Financial assets at fair value through other comprehensive income | Equity instruments | Minimum | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	0.90	0.90
Financial assets at fair value through other comprehensive income | Equity instruments | Maximum | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1.10	1.10
Financial assets at fair value through other comprehensive income | Equity instruments | Weighted average | Price | Price Based Valuation Technique
Disclosure of detailed information about financial instruments [line items]
Significant unobservable input, assets	1	1

Other disclosures - Schedule _3

Other disclosures - Schedule of changes in financial instruments classified as Level 3 (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	€ 925	€ 629
Purchases/Settlements	304	84
Sales/Amortisation	(106)	(160)
Changes in fair value recognized in profit or loss	(93)	43
Changes in fair value recognised in equity	0	0
Level reclassifications	(82)	(14)
Other	(128)	48
Financial liabilities, at fair value, period ending	820	630
Level 3
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	8,290	7,667
Purchases/Settlements	4,558	5,103
Sales/Amortisation	(3,783)	(5,417)
Changes in fair value recognized in profit or loss	85	62
Changes in fair value recognised in equity	(222)	(191)
Level reclassifications	809	174
Other	251	263
Financial assets, at fair value, period ending	9,988	7,661
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	925
Financial liabilities, at fair value, period ending	820
Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	415	160
Purchases/Settlements	304	84
Sales/Amortisation	(101)	(61)
Changes in fair value recognized in profit or loss	(91)	42
Changes in fair value recognised in equity	0	0
Level reclassifications	(118)	(14)
Other	(7)	0
Financial liabilities, at fair value, period ending	402	211
Level 3 | Hedging instruments [member]
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	14
Purchases/Settlements	0
Sales/Amortisation	0
Changes in fair value recognized in profit or loss	3
Changes in fair value recognised in equity	0
Level reclassifications	36
Other	0
Financial liabilities, at fair value, period ending	53
Level 3 | Financial liabilities designated at fair value through profit or loss (*)
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	151	151
Purchases/Settlements	0	0
Sales/Amortisation	(5)	(2)
Changes in fair value recognized in profit or loss	1	1
Changes in fair value recognised in equity	0	0
Level reclassifications	0	0
Other	(147)	0
Financial liabilities, at fair value, period ending	0	150
Level 3 | Liabilities covered by insurance and reinsurance contracts (*)
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	345	318
Purchases/Settlements	0	0
Sales/Amortisation	0	(97)
Changes in fair value recognized in profit or loss	(6)	0
Changes in fair value recognised in equity	0	0
Level reclassifications	0	0
Other	26	48
Financial liabilities, at fair value, period ending	365	269
Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	383	537
Purchases/Settlements	198	29
Sales/Amortisation	(72)	(9)
Changes in fair value recognized in profit or loss	77	(52)
Changes in fair value recognised in equity	0	0
Level reclassifications		(2)
Level reclassifications	303
Other	151	14
Financial assets, at fair value, period ending	1,040	517
Level 3 | Financial assets at fair value through profit and loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	427	418
Purchases/Settlements	0	0
Sales/Amortisation	0	(3)
Changes in fair value recognized in profit or loss	(40)	4
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	30	75
Financial assets, at fair value, period ending	417	494
Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	1,833	1,865
Purchases/Settlements	163	112
Sales/Amortisation	(116)	(218)
Changes in fair value recognized in profit or loss	48	110
Changes in fair value recognised in equity	0	0
Level reclassifications		(29)
Level reclassifications	0
Other	(16)	105
Financial assets, at fair value, period ending	1,912	1,945
Level 3 | Financial assets at fair value through other comprehensive income
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	5,647	4,847
Purchases/Settlements	4,197	4,962
Sales/Amortisation	(3,595)	(5,187)
Changes in fair value recognized in profit or loss	0	0
Changes in fair value recognised in equity	(222)	(191)
Level reclassifications	505	205
Other	86	69
Financial assets, at fair value, period ending	6,618	4,705
Level 3 | Hedging instruments [member]
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	0
Purchases/Settlements	0
Sales/Amortisation	0
Changes in fair value recognized in profit or loss	0
Changes in fair value recognised in equity	0
Level reclassifications	1
Other	0
Financial assets, at fair value, period ending	1
Trading derivatives | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	415	160
Purchases/Settlements	304	84
Sales/Amortisation	(101)	(61)
Changes in fair value recognized in profit or loss	(91)	42
Changes in fair value recognised in equity	0	0
Level reclassifications	(118)	(14)
Other	(7)	0
Financial liabilities, at fair value, period ending	402	211
Swaps | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	235	44
Purchases/Settlements	104	15
Sales/Amortisation	(70)	(5)
Changes in fair value recognized in profit or loss	(25)	80
Changes in fair value recognised in equity	0	0
Level reclassifications	(97)	0
Other	(14)	(13)
Financial liabilities, at fair value, period ending	133	121
Exchange rate options | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	0	7
Purchases/Settlements	24	6
Sales/Amortisation	(24)	(14)
Changes in fair value recognized in profit or loss	0	1
Changes in fair value recognised in equity	0	0
Level reclassifications	0	0
Other	0	0
Financial liabilities, at fair value, period ending	0	0
Interest rate options | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	19	26
Purchases/Settlements	7	42
Sales/Amortisation	(1)	(20)
Changes in fair value recognized in profit or loss	(3)	(16)
Changes in fair value recognised in equity	0	0
Level reclassifications	0	0
Other	0	0
Financial liabilities, at fair value, period ending	22	32
Index and securities options | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	42	67
Purchases/Settlements	38	0
Sales/Amortisation	(6)	(2)
Changes in fair value recognized in profit or loss	3	0
Changes in fair value recognised in equity	0	0
Level reclassifications	(21)	0
Other	7	(65)
Financial liabilities, at fair value, period ending	63	0
Interest rate and equity futures | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period		0
Purchases/Settlements		0
Sales/Amortisation		0
Changes in fair value recognized in profit or loss		0
Changes in fair value recognised in equity		0
Level reclassifications		0
Other		0
Financial liabilities, at fair value, period ending		0
Other | Level 3 | Financial liabilities held for trading
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	119	16
Purchases/Settlements	131	21
Sales/Amortisation	0	(20)
Changes in fair value recognized in profit or loss	(66)	(23)
Changes in fair value recognised in equity	0	0
Level reclassifications	0	(14)
Other	0	78
Financial liabilities, at fair value, period ending	184	58
Swaps | Level 3 | Hedging instruments [member]
Changes in financial instruments, Liabilities
Financial liabilities, at fair value, beginning period	14
Purchases/Settlements	0
Sales/Amortisation	0
Changes in fair value recognized in profit or loss	3
Changes in fair value recognised in equity	0
Level reclassifications	36
Other	0
Financial liabilities, at fair value, period ending	53
Debt instruments | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	42	22
Purchases/Settlements	52	0
Sales/Amortisation	(4)	0
Changes in fair value recognized in profit or loss	1	1
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	316
Other	6	5
Financial assets, at fair value, period ending	413	28
Debt instruments | Level 3 | Financial assets at fair value through profit and loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	422	400
Purchases/Settlements	0	0
Sales/Amortisation	0	0
Changes in fair value recognized in profit or loss	(40)	6
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	30	75
Financial assets, at fair value, period ending	412	481
Debt instruments | Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	325	366
Purchases/Settlements	32	0
Sales/Amortisation	(25)	(25)
Changes in fair value recognized in profit or loss	3	(3)
Changes in fair value recognised in equity	0	0
Level reclassifications		(29)
Level reclassifications	0
Other	2	2
Financial assets, at fair value, period ending	337	311
Debt instruments | Level 3 | Financial assets at fair value through other comprehensive income
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	229	146
Purchases/Settlements	0	0
Sales/Amortisation	(3)	(1)
Changes in fair value recognized in profit or loss	0	0
Changes in fair value recognised in equity	(1)	9
Level reclassifications		0
Level reclassifications	32
Other	6	63
Financial assets, at fair value, period ending	263	217
Equity instruments | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	1	2
Purchases/Settlements	0	0
Sales/Amortisation	0	0
Changes in fair value recognized in profit or loss	0	(1)
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	0	0
Financial assets, at fair value, period ending	1	1
Equity instruments | Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	1,269	1,231
Purchases/Settlements	72	92
Sales/Amortisation	(28)	(126)
Changes in fair value recognized in profit or loss	61	73
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	(27)	45
Financial assets, at fair value, period ending	1,347	1,315
Equity instruments | Level 3 | Financial assets at fair value through other comprehensive income
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	700	821
Purchases/Settlements	1	2
Sales/Amortisation	(2)	(9)
Changes in fair value recognized in profit or loss	0	0
Changes in fair value recognised in equity	(244)	(183)
Level reclassifications	0	68
Other	41	1
Financial assets, at fair value, period ending	496	700
Trading derivatives | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	340	513
Purchases/Settlements	146	29
Sales/Amortisation	(68)	(9)
Changes in fair value recognized in profit or loss	77	(52)
Changes in fair value recognised in equity	0	0
Level reclassifications	(13)	(2)
Other	(1)	9
Financial assets, at fair value, period ending	481	488
Swaps | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	139	224
Purchases/Settlements	0	0
Sales/Amortisation	(3)	0
Changes in fair value recognized in profit or loss	93	5
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	(12)	(13)
Financial assets, at fair value, period ending	217	216
Swaps | Level 3 | Hedging instruments [member]
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	0
Purchases/Settlements	0
Sales/Amortisation	0
Changes in fair value recognized in profit or loss	0
Changes in fair value recognised in equity	0
Level reclassifications	1
Other	0
Financial assets, at fair value, period ending	1
Exchange rate options | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	4	12
Purchases/Settlements	0	0
Sales/Amortisation	0	(9)
Changes in fair value recognized in profit or loss	(1)	11
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	0	(1)
Financial assets, at fair value, period ending	3	13
Interest rate options | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	39	182
Purchases/Settlements	0	0
Sales/Amortisation	0	0
Changes in fair value recognized in profit or loss	(10)	(98)
Changes in fair value recognised in equity	0	0
Level reclassifications		(1)
Level reclassifications	0
Other	0	0
Financial assets, at fair value, period ending	29	83
Index and securities options | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	48	41
Purchases/Settlements	52	0
Sales/Amortisation	0	0
Changes in fair value recognized in profit or loss	3	1
Changes in fair value recognised in equity	0	0
Level reclassifications	(23)	0
Other	5	(40)
Financial assets, at fair value, period ending	85	2
Other | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	110	54
Purchases/Settlements	94	29
Sales/Amortisation	(65)	0
Changes in fair value recognized in profit or loss	(8)	29
Changes in fair value recognised in equity	0	0
Level reclassifications		(1)
Level reclassifications	10
Other	6	63
Financial assets, at fair value, period ending	147	174
Credit institutions | Level 3 | Financial assets at fair value through profit and loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period		0
Purchases/Settlements		0
Sales/Amortisation		0
Changes in fair value recognized in profit or loss		0
Changes in fair value recognised in equity		0
Level reclassifications		0
Other		0
Financial assets, at fair value, period ending		0
Loans and advances to customers | Level 3 | Financial assets at fair value through profit and loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	5	18
Purchases/Settlements	0	0
Sales/Amortisation	0	(3)
Changes in fair value recognized in profit or loss	0	(2)
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	0	0
Financial assets, at fair value, period ending	5	13
Loans and advances to customers | Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	239	268
Purchases/Settlements	59	20
Sales/Amortisation	(63)	(67)
Changes in fair value recognized in profit or loss	(16)	40
Changes in fair value recognised in equity	0	0
Level reclassifications		0
Level reclassifications	0
Other	9	58
Financial assets, at fair value, period ending	228	319
Loans and advances to customers | Level 3 | Financial assets at fair value through other comprehensive income
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	4,718	3,880
Purchases/Settlements	4,196	4,960
Sales/Amortisation	(3,590)	(5,177)
Changes in fair value recognized in profit or loss	0	0
Changes in fair value recognised in equity	23	(17)
Level reclassifications	473	137
Other	39	5
Financial assets, at fair value, period ending	5,859	€ 3,788
Customers [member] | Level 3 | Financial assets held for trading
Changes in financial instruments, Assets
Financial assets, at fair value, beginning period	0
Purchases/Settlements	0
Sales/Amortisation	0
Changes in fair value recognized in profit or loss	(1)
Changes in fair value recognised in equity	0
Level reclassifications	0
Other	146
Financial assets, at fair value, period ending	€ 145

Other disclosures - Schedule _4

Other disclosures - Schedule of forborne loans (Details) - Credit risk - Forborne loan portfolio € in Millions	Jun. 30, 2023 EUR (€) contract	Dec. 31, 2022 EUR (€) contract
Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	6,098,282	6,199,278
With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	574,719	553,051
Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 9,258	€ 9,715
Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 5,620	€ 5,422
Credit entities | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	0
Credit entities | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	0
Credit entities | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0
Credit entities | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0
Public sector | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	10,578	6,679
Public sector | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	36	31
Public sector | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 2	€ 2
Public sector | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0	€ 0
Other financial institutions and: individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	1,197	1,210
Other financial institutions and: individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	1,034	785
Other financial institutions and: individual shareholder | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 72	€ 88
Other financial institutions and: individual shareholder | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 129	€ 86
Non financial institutions and individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	304,058	312,934
Non financial institutions and individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	60,027	60,003
Non financial institutions and individual shareholder | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 4,377	€ 4,790
Non financial institutions and individual shareholder | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 1,750	€ 1,834
Of which: Financing for constructions and property development | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	16,476	15,578
Of which: Financing for constructions and property development | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	2,111	1,890
Of which: Financing for constructions and property development | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 421	€ 423
Of which: Financing for constructions and property development | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 37	€ 48
Other warehouses | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	5,782,449	5,878,455
Other warehouses | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	513,622	492,232
Other warehouses | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 4,807	€ 4,835
Other warehouses | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	3,741	3,502
Gross carrying amount | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	15,959	15,916
Gross carrying amount | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	17,593	18,257
Gross carrying amount | Credit entities | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Gross carrying amount | Credit entities | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Gross carrying amount | Public sector | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	364	227
Gross carrying amount | Public sector | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	5	7
Gross carrying amount | Other financial institutions and: individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	168	321
Gross carrying amount | Other financial institutions and: individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	347	339
Gross carrying amount | Non financial institutions and individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	8,550	9,578
Gross carrying amount | Non financial institutions and individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	7,652	8,419
Gross carrying amount | Of which: Financing for constructions and property development | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	138	125
Gross carrying amount | Of which: Financing for constructions and property development | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	528	570
Gross carrying amount | Other warehouses | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	6,877	5,790
Gross carrying amount | Other warehouses | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	9,589	9,492
Accumulated impairment
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	8,218	8,266
Accumulated impairment | Credit entities
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Accumulated impairment | Public sector
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3	6
Accumulated impairment | Other financial institutions and: individual shareholder
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	74	61
Accumulated impairment | Non financial institutions and individual shareholder
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3,504	3,912
Accumulated impairment | Of which: Financing for constructions and property development
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	169	208
Accumulated impairment | Other warehouses
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	€ 4,637	€ 4,287
Credit impaired | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	3,259,569	3,910,360
Credit impaired | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	308,086	286,863
Credit impaired | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 4,277	€ 4,682
Credit impaired | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 2,714	€ 1,802
Credit impaired | Credit entities | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	0
Credit impaired | Credit entities | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	0
Credit impaired | Credit entities | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0
Credit impaired | Credit entities | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0
Credit impaired | Public sector | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	9	7
Credit impaired | Public sector | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	9	13
Credit impaired | Public sector | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0	€ 2
Credit impaired | Public sector | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 0	€ 0
Credit impaired | Other financial institutions and: individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	622	641
Credit impaired | Other financial institutions and: individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	660	620
Credit impaired | Other financial institutions and: individual shareholder | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 19	€ 22
Credit impaired | Other financial institutions and: individual shareholder | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 48	€ 6
Credit impaired | Non financial institutions and individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	160,329	174,300
Credit impaired | Non financial institutions and individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	39,771	39,479
Credit impaired | Non financial institutions and individual shareholder | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 2,371	€ 2,741
Credit impaired | Non financial institutions and individual shareholder | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 861	€ 886
Credit impaired | Of which: Financing for constructions and property development | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	9,867	10,325
Credit impaired | Of which: Financing for constructions and property development | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	1,281	1,255
Credit impaired | Of which: Financing for constructions and property development | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 194	€ 213
Credit impaired | Of which: Financing for constructions and property development | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 15	€ 33
Credit impaired | Other warehouses | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	3,098,609	3,735,412
Credit impaired | Other warehouses | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Number of transactions/operations | contract	267,646	246,751
Credit impaired | Other warehouses | Mortgage guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	€ 1,887	€ 1,917
Credit impaired | Other warehouses | Other guarantees
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Maximum amount of the actual collateral that can be considered	1,805	910
Credit impaired | Gross carrying amount | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	6,142	6,100
Credit impaired | Gross carrying amount | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	8,910	9,085
Credit impaired | Gross carrying amount | Credit entities | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Credit impaired | Gross carrying amount | Credit entities | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Credit impaired | Gross carrying amount | Public sector | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3	2
Credit impaired | Gross carrying amount | Public sector | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0	5
Credit impaired | Gross carrying amount | Other financial institutions and: individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	69	9
Credit impaired | Gross carrying amount | Other financial institutions and: individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	158	135
Credit impaired | Gross carrying amount | Non financial institutions and individual shareholder | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3,050	3,178
Credit impaired | Gross carrying amount | Non financial institutions and individual shareholder | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	4,260	4,890
Credit impaired | Gross carrying amount | Of which: Financing for constructions and property development | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	88	78
Credit impaired | Gross carrying amount | Of which: Financing for constructions and property development | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	260	335
Credit impaired | Gross carrying amount | Other warehouses | Without real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3,020	2,911
Credit impaired | Gross carrying amount | Other warehouses | With real guarantee
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	4,492	4,055
Credit impaired | Accumulated impairment
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	6,512	6,621
Credit impaired | Accumulated impairment | Credit entities
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	0
Credit impaired | Accumulated impairment | Public sector
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3	5
Credit impaired | Accumulated impairment | Other financial institutions and: individual shareholder
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	58	55
Credit impaired | Accumulated impairment | Non financial institutions and individual shareholder
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	3,010	3,439
Credit impaired | Accumulated impairment | Of which: Financing for constructions and property development
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	145	188
Credit impaired | Accumulated impairment | Other warehouses
CURRENT REFINANCING AND RESTRUCTURING BALANCES
Loans and receivables	€ 3,441	€ 3,122

Other disclosures - Disclosure

Other disclosures - Disclosure of home purchase loans in Spain (Details) - Home purchase loans - Spain - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Disclosure of credit risk exposure [line items]
Percentage secured by mortgage	99.63%
Gross carrying amount
Disclosure of credit risk exposure [line items]
Financial assets	€ 61,606	€ 63,688
Gross carrying amount | Without real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	229	288
Gross carrying amount | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	61,377	63,400
Credit impaired | Gross carrying amount
Disclosure of credit risk exposure [line items]
Financial assets	987	1,088
Credit impaired | Gross carrying amount | Without real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	14	24
Credit impaired | Gross carrying amount | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	€ 973	€ 1,064

Other disclosures - Real estate

Other disclosures - Real estate business - Spain (Details) - Home purchase loans - Spain	6 Months Ended
	Jun. 30, 2023
Less than 80 %
Disclosure of credit risk exposure [line items]
Percentage of portfolio with LTV less than 80%	94.04%
Weighted average
Disclosure of credit risk exposure [line items]
Affordability rate	29%
Maximum | Less than 80 %
Disclosure of credit risk exposure [line items]
Loan-to-value (LTV) ratio (in percentage)	80%

Other disclosures - Disclosur_2

Other disclosures - Disclosure of gross exposure by stages of impairment (Details) - Home purchase loans - Spain - Gross carrying amount - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of credit risk exposure [line items]
Financial assets	€ 61,606	€ 63,688
With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	61,377	63,400
Less than or equal to 40% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	18,444	17,877
More than 40% or less than 60% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	20,765	20,617
More than 60% and less than 80% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	18,512	20,225
More than 80% and less or equal to 100% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	2,523	3,294
More than 100% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	1,133	1,387
Credit impaired
Disclosure of credit risk exposure [line items]
Financial assets	987	1,088
Credit impaired | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	973	1,064
Credit impaired | Less than or equal to 40% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	142	132
Credit impaired | More than 40% or less than 60% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	193	192
Credit impaired | More than 60% and less than 80% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	204	220
Credit impaired | More than 80% and less or equal to 100% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	167	181
Credit impaired | More than 100% | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	€ 267	€ 339

Other disclosures - Disclosur_3

Other disclosures - Disclosure of financing for construction and real estate business in Spain (Details) - Spain - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Construction and property development loans
Disclosure of credit risk exposure [line items]
Financial assets	€ 2,246	€ 2,283
Gross carrying amount | Construction and property development loans
Disclosure of credit risk exposure [line items]
Financial assets	2,282	2,327
Written-off assets	376	487
Gross carrying amount | Construction and property development loans | Credit impaired
Disclosure of credit risk exposure [line items]
Financial assets	75	94
Excess over collateral value | Construction and property development loans
Disclosure of credit risk exposure [line items]
Risk exposure	209	211
Excess over collateral value | Construction and property development loans | Credit impaired
Disclosure of credit risk exposure [line items]
Risk exposure	8	21
Accumulated impairment
Disclosure of credit risk exposure [line items]
Financial assets	(1,247)	(1,311)
Accumulated impairment | Construction and property development loans
Disclosure of credit risk exposure [line items]
Financial assets	(36)	(44)
Accumulated impairment | Construction and property development loans | Credit impaired
Disclosure of credit risk exposure [line items]
Financial assets	€ (26)	€ (33)

Other disclosures - Disclosur_4

Other disclosures - Disclosure of financing for construction and real estate business in Spain, memorandum items (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Memorandum items:
Total consolidated assets (Total business) (book value)	€ 1,780,493	€ 1,734,659
Spain | Accumulated impairment
Memorandum items:
Impairment losses and provision for exposure classified as normal (business in Spain)	1,247	1,311
Spain | Customers excluding the public sector
Memorandum items:
Total loans and advances to customers excluding the public sector (business in Spain) (book value)	€ 243,814	€ 250,702

Other disclosures - Disclosur_5

Other disclosures - Disclosure of concentration of portfolio (Details) - Construction and property development loans - Spain - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of credit risk exposure [line items]
Financial assets	€ 2,246	€ 2,283
Gross carrying amount
Disclosure of credit risk exposure [line items]
Financial assets	2,282	2,327
Gross carrying amount | Without real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	36	42
Gross carrying amount | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	2,246	2,285
Gross carrying amount | Completed buildings | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	951	1,138
Gross carrying amount | Completed buildings | Residential
Disclosure of credit risk exposure [line items]
Financial assets	528	674
Gross carrying amount | Completed buildings | Other
Disclosure of credit risk exposure [line items]
Financial assets	423	464
Gross carrying amount | Building and other constructions under construction | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	1,273	1,110
Gross carrying amount | Building and other constructions under construction | Residential
Disclosure of credit risk exposure [line items]
Financial assets	1,216	1,103
Gross carrying amount | Building and other constructions under construction | Other
Disclosure of credit risk exposure [line items]
Financial assets	57	7
Gross carrying amount | Land | With real guarantee
Disclosure of credit risk exposure [line items]
Financial assets	22	37
Gross carrying amount | Land | Developed consolidated land
Disclosure of credit risk exposure [line items]
Financial assets	14	25
Gross carrying amount | Land | Other land
Disclosure of credit risk exposure [line items]
Financial assets	€ 8	€ 12

Other disclosures - Disclosur_6

Other disclosures - Disclosure of foreclosed real estate assets (Details) - Spain - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Distribution of portfolio
Foreclosed assets	€ 2,680	€ 2,971
Impairment losses since time of foreclosure	2,375	2,526
Construction and property development loans
Distribution of portfolio
Foreclosed assets	2,300	2,490
Impairment losses since time of foreclosure	2,162	2,275
Construction and property development loans | Completed Buildings
Distribution of portfolio
Foreclosed assets	580	743
Impairment losses since time of foreclosure	522	583
Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	136	184
Impairment losses since time of foreclosure	102	127
Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	444	559
Impairment losses since time of foreclosure	420	456
Construction and property development loans | Buildings under construction
Distribution of portfolio
Foreclosed assets	44	48
Impairment losses since time of foreclosure	36	32
Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	3	18
Impairment losses since time of foreclosure	5	4
Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	41	30
Impairment losses since time of foreclosure	31	28
Construction and property development loans | Land
Distribution of portfolio
Foreclosed assets	1,676	1,699
Impairment losses since time of foreclosure	1,604	1,660
Construction and property development loans | Developed Land
Distribution of portfolio
Foreclosed assets	581	597
Impairment losses since time of foreclosure	403	415
Construction and property development loans | Other land
Distribution of portfolio
Foreclosed assets	1,095	1,102
Impairment losses since time of foreclosure	1,201	1,245
Home purchase loans
Distribution of portfolio
Foreclosed assets	304	385
Impairment losses since time of foreclosure	157	190
Other foreclosed property assets
Distribution of portfolio
Foreclosed assets	76	96
Impairment losses since time of foreclosure	56	61
Gross carrying amount
Distribution of portfolio
Foreclosed assets	5,922	6,422
Gross carrying amount | Construction and property development loans
Distribution of portfolio
Foreclosed assets	5,241	5,587
Gross carrying amount | Construction and property development loans | Completed Buildings
Distribution of portfolio
Foreclosed assets	1,210	1,456
Gross carrying amount | Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	262	341
Gross carrying amount | Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	948	1,115
Gross carrying amount | Construction and property development loans | Buildings under construction
Distribution of portfolio
Foreclosed assets	92	92
Gross carrying amount | Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	11	25
Gross carrying amount | Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	81	67
Gross carrying amount | Construction and property development loans | Land
Distribution of portfolio
Foreclosed assets	3,939	4,039
Gross carrying amount | Construction and property development loans | Developed Land
Distribution of portfolio
Foreclosed assets	1,245	1,286
Gross carrying amount | Construction and property development loans | Other land
Distribution of portfolio
Foreclosed assets	2,694	2,753
Gross carrying amount | Home purchase loans
Distribution of portfolio
Foreclosed assets	533	659
Gross carrying amount | Other foreclosed property assets
Distribution of portfolio
Foreclosed assets	148	176
Accumulated impairment
Distribution of portfolio
Foreclosed assets	(3,242)	(3,451)
Accumulated impairment | Construction and property development loans
Distribution of portfolio
Foreclosed assets	(2,941)	(3,097)
Accumulated impairment | Construction and property development loans | Completed Buildings
Distribution of portfolio
Foreclosed assets	(630)	(713)
Accumulated impairment | Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	(126)	(157)
Accumulated impairment | Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	(504)	(556)
Accumulated impairment | Construction and property development loans | Buildings under construction
Distribution of portfolio
Foreclosed assets	(48)	(44)
Accumulated impairment | Construction and property development loans | Residential
Distribution of portfolio
Foreclosed assets	(8)	(7)
Accumulated impairment | Construction and property development loans | Other
Distribution of portfolio
Foreclosed assets	(40)	(37)
Accumulated impairment | Construction and property development loans | Land
Distribution of portfolio
Foreclosed assets	(2,263)	(2,340)
Accumulated impairment | Construction and property development loans | Developed Land
Distribution of portfolio
Foreclosed assets	(664)	(689)
Accumulated impairment | Construction and property development loans | Other land
Distribution of portfolio
Foreclosed assets	(1,599)	(1,651)
Accumulated impairment | Home purchase loans
Distribution of portfolio
Foreclosed assets	(229)	(274)
Accumulated impairment | Other foreclosed property assets
Distribution of portfolio
Foreclosed assets	€ (72)	€ (80)

Other disclosures - Foreclosed

Other disclosures - Foreclosed real estate assets (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Disclosure of detailed information about investment property [line items]
Investments accounted for using equity method	€ 7,679	€ 7,615
Foreclosed properties | Spain
Disclosure of detailed information about investment property [line items]
Investments accounted for using equity method	185
Foreclosed properties | Spain | Project Quasar Investments 2017, S.L.
Disclosure of detailed information about investment property [line items]
Investments accounted for using equity method	155
Foreclosed equity instruments | Spain
Disclosure of detailed information about investment property [line items]
Investments accounted for using equity method	€ 14

Other disclosures - Solvency in

Other disclosures - Solvency information (Details)	Jun. 30, 2023	Dec. 31, 2022
IFRS Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 phase-in percentage	12.30%	12.18%
Tier 1 phase in capital ratio	13.70%	13.63%
Total phase-in capital	16.03%	15.99%
CET1 phase-in percentage, fully loaded	12.24%
Minimum
IFRS Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 phase-in percentage	9.14%
Pillar 1 percentage	4.50%
Pillar 2 percentage	0.89%
Capital conservation buffer, percentage	2.50%
Globally Systemically Important Entity percentage	1%
Percentage of anti cyclical buffer on common equity Tier1 capital	0.25%
Tier 1 phase in capital ratio	10.94%
Total phase-in capital	13.33%

Other disclosures - Disclosur_7

Other disclosures - Disclosure of capital ratio (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Other Disclosures
Level 1 ordinary eligible capital (EUR million)	€ 77,628	€ 74,202
Level 1 additional eligible capital (EUR million)	8,856	8,831
Level 2 eligible capital (EUR million)	14,669	14,359
Risk-weighted assets (EUR million)	€ 631,149	€ 609,266
Level 1 ordinary capital coefficient (CET 1)	12.30%	12.18%
Level 1 additional capital coefficient (AT1)	1.40%	1.45%
Level 1 capital coefficient (TIER1)	13.70%	13.63%
Level 2 capital coefficient (TIER 2)	2.33%	2.36%
Total capital coefficient	16.03%	15.99%

Other disclosures - Disclosur_8

Other disclosures - Disclosure of leverage capital (Details) - EUR (€) € in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Other Disclosures
Tier 1 capital (EUR million)	€ 86,485	€ 83,033
Exposure (EIR million)	€ 1,796,203	€ 1,750,626
Leverage ratio	4.81%	4.74%

Additional disclosure require_3

Additional disclosure requirements - Condensed Balance Sheets (Details) - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Assets
Cash and due from banks	€ 186,134		€ 191,065
Trading account assets	183,834	€ 156,118
Premises and equipment, net	33,118	33,044
Other assets	9,193	10,082
TOTAL ASSETS	1,780,493	1,734,659
Liabilities
Other liabilities	14,859	14,609
TOTAL LIABILITIES	1,678,449	1,637,074
Stockholders' equity
Capital stock	8,092	8,397
TOTAL EQUITY	102,044	97,585	€ 97,462	€ 97,053
TOTAL LIABILITIES AND EQUITY	1,780,493	1,734,659
Banco Santander S.A. | Reportable legal entities
Assets
Cash and due from banks	158,281	177,920
Trading account assets	104,836	92,128
Investment securities	58,000	47,560
Net Loans and leases	302,561	314,905
Investment in affiliated companies	96,997	94,213
Premises and equipment, net	6,466	6,513
Other assets	14,663	16,787
TOTAL ASSETS	741,804	750,026
Liabilities
Deposits	378,537	418,841
Short-term debt	93,116	54,255
Long-term debt	104,059	114,447
Total debt	197,175	168,702
Other liabilities	94,986	92,437
TOTAL LIABILITIES	670,698	679,980
Stockholders' equity
Capital stock	8,092	8,397
Retained earnings and other reserves	63,014	61,649
TOTAL EQUITY	71,106	70,046
TOTAL LIABILITIES AND EQUITY	741,804	750,026
Bank subsidiaries | Banco Santander S.A. | Reportable legal entities
Assets
Cash and due from banks	7,510	14,548
Investment securities	16,248	14,287
Investment in affiliated companies	73,360	70,698
Liabilities
Deposits	8,514	16,619
Total debt	88	0
Non-bank subsidiaries | Banco Santander S.A. | Reportable legal entities
Assets
Investment securities	1,171	1,327
Net Loans and leases	23,473	25,312
Investment in affiliated companies	23,637	23,515
Liabilities
Deposits	12,995	15,106
Total debt	€ 2,147	€ 1,638

Additional disclosure require_4

Additional disclosure requirements - Condensed Statements of Income (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Condensed Income Statements, Captions [Line Items]
Interest income	€ 49,922	€ 30,869
Dividends from affiliated companies	382	335
Interest expense	(29,002)	(12,460)
Non-interest income:	480	819
Non-interest expense:	(1,504)	(1,461)
Operating profit/(loss) before tax	8,090	7,915
Income tax expense	(2,281)	(2,374)
Profit/(loss) for the period	5,809	5,541
Banco Santander S.A. | Reportable legal entities
Condensed Income Statements, Captions [Line Items]
Interest income	13,380	7,004
Dividends from affiliated companies	3,131	2,813
Interest expense	(6,938)	(2,068)
Interest income / (Charges)	6,442	4,936
Provision for credit losses	(755)	(818)
Interest income / (Charges) after provision for credit losses	5,687	4,118
Non-interest income:	2,397	2,558
Non-interest expense:	(4,187)	(4,202)
Operating profit/(loss) before tax	3,897	2,474
Income tax expense	(243)	(43)
Profit/(loss) for the period	3,654	2,431
Banco Santander S.A. | Reportable legal entities | Earnings Assets
Condensed Income Statements, Captions [Line Items]
Interest income	10,249	4,191
Banco Santander S.A. | Reportable legal entities | Bank subsidiaries
Condensed Income Statements, Captions [Line Items]
Dividends from affiliated companies	2,618	2,625
Banco Santander S.A. | Reportable legal entities | Non-bank subsidiaries
Condensed Income Statements, Captions [Line Items]
Dividends from affiliated companies	€ 513	€ 188

Additional disclosure require_5

Additional disclosure requirements - Condensed Statements of Comprehensive Income (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Condensed Statement of Income Captions [Line Items]
Profit/(loss) for the period	€ 5,809	€ 5,541
OTHER RECOGNISED INCOME AND EXPENSE	2,091	214
Items that may be reclassified to profit or loss	2,580	(219)
Hedging instruments (items not designated)	0	0
Revaluation gains (losses)	0	0
Amounts transferred to income statement	0	0
Other reclassifications	0	0
Debt instruments at fair value with changes in other comprehensive income	790	(1,804)
Revaluation gains (losses)	782	(2,411)
Amounts transferred to income statement	8	(190)
Other reclassifications	0	797
Cash flow hedges (effective portion)	596	(2,604)
Revaluation gains (losses)	(1,318)	(942)
Amounts transferred to income statement	1,914	(1,662)
Amounts transferred to initial carrying amount of hedged items	0	0
Other reclassifications	0	0
Hedges of net investments in foreign operations (effective portion)	(1,527)	(1,693)
Exchange differences	3,094	4,462
Non-current assets held for sale	0	0
Income tax	(461)	1,281
Items that will not be reclassified to profit or loss	(489)	433
Actuarial gains/(losses) on pension plans	(402)	843
Other recognised income and expense of investments in subsidiaries, joint ventures and associates	(5)	(1)
Changes in the fair value of equity instruments measured at fair value through other comprehensive income	(201)	(334)
Gains or losses resulting from the accounting for hedges of equity instruments measured at fair value through other comprehensive income, net	0	0
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedged item)	(41)	37
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedging instrument)	41	(37)
Changes in the fair value of financial liabilities at fair value through profit or loss attributable to changes in credit risk	(50)	123
Income tax relating to items that will not be reclassified	169	(198)
Total recognised income and expenses for the year	7,900	5,755
Banco Santander S.A. | Reportable legal entities
Condensed Statement of Income Captions [Line Items]
Profit/(loss) for the period	3,654	2,431
OTHER RECOGNISED INCOME AND EXPENSE	(183)	(683)
Items that may be reclassified to profit or loss	104	(551)
Hedging instruments (items not designated)	0	0
Revaluation gains (losses)	0	0
Amounts transferred to income statement	0	0
Other reclassifications	0	0
Debt instruments at fair value with changes in other comprehensive income	43	(378)
Revaluation gains (losses)	38	(327)
Amounts transferred to income statement	5	(52)
Other reclassifications	0	0
Cash flow hedges (effective portion)	133	(408)
Revaluation gains (losses)	(24)	(394)
Amounts transferred to income statement	157	(14)
Amounts transferred to initial carrying amount of hedged items	0	0
Other reclassifications	0	0
Hedges of net investments in foreign operations (effective portion)	0	0
Exchange differences	0	0
Non-current assets held for sale	0	0
Income tax	(72)	235
Items that will not be reclassified to profit or loss	(287)	(132)
Actuarial gains/(losses) on pension plans	12	217
Other recognised income and expense of investments in subsidiaries, joint ventures and associates	0	0
Changes in the fair value of equity instruments measured at fair value through other comprehensive income	(275)	(344)
Gains or losses resulting from the accounting for hedges of equity instruments measured at fair value through other comprehensive income, net	0	0
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedged item)	(41)	37
Changes in the fair value of equity instruments measured at fair value through other comprehensive income (hedging instrument)	41	(37)
Changes in the fair value of financial liabilities at fair value through profit or loss attributable to changes in credit risk	(34)	84
Income tax relating to items that will not be reclassified	10	(89)
Total recognised income and expenses for the year	€ 3,471	€ 1,748

Additional disclosure require_6

Additional disclosure requirements - Condensed Cash Flow Statements (Details) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
1. Cash flows from operating activities
Consolidated profit	€ 5,809	€ 5,541
Adjustments to profit	13,720	11,307
Net increase/decrease in operating assets	(45,762)	(90,128)
Net increase/decrease in operating liabilities	15,842	83,182
Reimbursements/payments of income tax	(1,504)	(2,516)
CASH FLOWS FROM OPERATING ACTIVITIES	(11,895)	7,386
2. Cash flows from investing activities
Investments (-)	(6,832)	(6,016)
Divestments (+)	4,334	4,364
CASH FLOWS FROM INVESTING ACTIVITIES	(2,498)	(1,652)
3. Cash flows from financing activities
Issuance of own equity instruments	0	0
Disposal of own equity instruments	467	360
Acquisition of own equity instruments	(1,723)	(1,173)
Dividends paid	(963)	(869)
CASH FLOWS FROM FINANCING ACTIVITIES	(2,358)	(7,123)
Effect of exchange rate changes on cash and cash equivalents	1,224	1,976
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS	(15,527)	587
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	223,073	210,689
CASH AND CASH EQUIVALENTS AT END OF PERIOD	207,546	211,276
Banco Santander S.A. | Reportable legal entities
1. Cash flows from operating activities
Consolidated profit	3,654	2,431
Adjustments to profit	2,080	(483)
Net increase/decrease in operating assets	(10,186)	(59,337)
Net increase/decrease in operating liabilities	(14,608)	80,616
Reimbursements/payments of income tax	1,134	(287)
CASH FLOWS FROM OPERATING ACTIVITIES	(17,926)	22,940
2. Cash flows from investing activities
Investments (-)	(2,438)	(2,072)
Divestments (+)	4,099	4,440
CASH FLOWS FROM INVESTING ACTIVITIES	1,661	2,368
3. Cash flows from financing activities
Issuance of own equity instruments	0	0
Disposal of own equity instruments	336	202
Acquisition of own equity instruments	(1,622)	(1,067)
Issuance of debt securities	1,500	0
Redemption of debt securities	(438)	(1,203)
Dividends paid	(963)	(869)
Issuance/Redemption of equity instruments	0	0
Other collections/payments related to financing activities	(87)	(158)
CASH FLOWS FROM FINANCING ACTIVITIES	(1,274)	(3,095)
Effect of exchange rate changes on cash and cash equivalents	(429)	448
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS	(17,968)	22,661
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	130,083	91,736
CASH AND CASH EQUIVALENTS AT END OF PERIOD	€ 112,115	€ 114,397

Additional disclosure require_7

Additional disclosure requirements - Schedule of preference shares and preferred securities (Details) - Financial liabilities at amortized cost - EUR (€) € in Millions	Jun. 30, 2023	Dec. 31, 2022
Subordinated
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 8,069	€ 8,096
Preference shares
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	205	198
Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 7,864	€ 7,898

Additional disclosure require_8

Additional disclosure requirements - Schedule of preference shares and preferred securities by issuer (Details) € in Millions, £ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2023 EUR (€)	Jun. 30, 2023 GBP (£)	Jun. 30, 2023 USD ($)
Santander UK plc, October 1995 | Preference shares
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount | £		£ 80.3
Interest rate	10.375%	10.375%	10.375%
Santander UK plc, February 1996 | Preference shares
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount | £		£ 80.3
Interest rate	10.375%	10.375%	10.375%
Banco Santander, S.A., September 2017
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	6 years
Reference rate	5-year Mid-Swap Rate
Banco Santander, S.A., September 2017 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 1,000
Interest rate	5.25%	5.25%	5.25%
Adjustment to reference rate, after initial interest rate period	4.999%	4.999%	4.999%
Banco Santander, S.A., March 2018
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	7 years
Reference rate	Mid-Swap Rate
Banco Santander, S.A., March 2018 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 1,500
Interest rate	4.75%	4.75%	4.75%
Adjustment to reference rate, after initial interest rate period	4.097%	4.097%	4.097%
Banco Santander, S.A., February 2019
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	5 years
Reference rate	Mid-Swap Rate
Reprice term	5 years
Banco Santander, S.A., February 2019 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount | $			$ 1,200
Interest rate	7.50%	7.50%	7.50%
Adjustment to reference rate, after initial interest rate period	4.989%	4.989%	4.989%
Banco Santander, S.A., January 2020
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	6 years
Reference rate	5-year Mid-Swap Rate
Reprice term	5 years
Banco Santander, S.A., January 2020 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 1,500
Interest rate	4.375%	4.375%	4.375%
Adjustment to reference rate, after initial interest rate period	4.534%	4.534%	4.534%
Banco Santander, S.A., May 2021 | US Dollar
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	6 years
Reference rate	5-year UST
Reprice term	5 years
Banco Santander, S.A., May 2021 | Euro
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	7 years
Reference rate	5-year Euro mid-swap
Reprice term	5 years
Banco Santander, S.A., May 2021 | Preferred securities | US Dollar
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount | $			$ 1,000
Interest rate	4.75%	4.75%	4.75%
Adjustment to reference rate, after initial interest rate period	3.753%	3.753%	3.753%
Banco Santander, S.A., May 2021 | Preferred securities | Euro
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 750
Interest rate	4.125%	4.125%	4.125%
Adjustment to reference rate, after initial interest rate period	4.311%	4.311%	4.311%
Banco Santander, S.A., September 2021
Disclosure of detailed information about financial instruments [line items]
Initial interest rate term	8 years
Reference rate	5-year Mid-Swap Rate.
Reprice term	5 years
Banco Santander, S.A., September 2021 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 1,000
Interest rate	3.625%	3.625%	3.625%
Adjustment to reference rate, after initial interest rate period	3.76%	3.76%	3.76%
Santander Finance Preferred, S.A. (Unipersonal), September 2004 | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Outstanding issue amount	€ 144
Santander Finance Preferred, S.A. (Unipersonal), September 2004 | CMS 10 interest rate | Preferred securities
Disclosure of detailed information about financial instruments [line items]
Interest rate	8%	8%	8%
Variable interest rate	0.05%	0.05%	0.05%