Earnings per Common Share - € / shares shares in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings per share [Abstract]
Basic	[1]	€ 2.83	€ 2.37	€ 1.00
Diluted	[1]	€ 2.77	€ 2.32	€ 0.97
Number of shares in million [Abstract]
Denominator for basic earnings per share, weighted-average shares outstanding		2,064.1	2,084.9	2,096.5
Denominator for diluted earnings per share, adjusted weighted-average shares after assumed conversions		2,104.0	2,125.6	2,143.2

[1] Earnings were adjusted by € 498 million, € 479 million and € 363 million before tax for the coupons paid on Additional Tier 1 Notes in May 2023, May 2022 and April 2021; in accordance with IAS 33 the coupons paid on Additional Tier 1 Notes are not attributable to Deutsche Bank shareholders and therefore need to be deducted in the calculation