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Statements of Cash Flows (Parenthetical) - EUR (€)
€ in Millions
Jun. 30, 2018
Jun. 30, 2017
Memorandum Items [Abstract]    
Cash € 6,540 € 6,881
Cash equivalents at central banks 84,721 62,909
Other financial assets 16,426 13,901
Total cash and cash equivalents € 107,687 € 83,691