Note 34 - Income Taxes - Items where no Deferred Tax Assets were recognized (Detail) - EUR (€) € in Millions		Dec. 31, 2023	Dec. 31, 2022
Items where no Deferred Tax Assets were recognized
Deductible temporary differences	[1]	€ (36)	€ (773)
Not expiring	[1]	(5,119)	(9,462)
Expiring in subsequent period	[1]	(28)	0
Expiring after subsequent period	[1]	(55)	(471)
Unused tax losses	[1]	(5,202)	(9,933)
Expiring after subsequent period	[1]	0	0
Unused tax credits	[1]	€ (1)	€ (1)

[1] Amounts in the table refer to deductible temporary differences, unused tax losses and tax credits for federal income tax purposes.