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Taxation - Summary of Tax Charges in Income Statement (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Current tax      
Current year € (2,206) € (2,399) € (2,128)
Over/(under) provided in prior years (61) 245 (154)
Current tax (expense) income (2,267) (2,154) (2,282)
Deferred tax      
Origination and reversal of temporary differences 153 189 344
Changes in tax rates 28 15 (19)
Recognition of previously unrecognised losses brought forward 18 15 34
Deferred tax (expense) income 199 219 359
Total tax (expense) income € (2,068) € (1,935) € (1,923)