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Document and Entity Information - Jun. 30, 2015 - shares
Total
Documentand Entity Information [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Jun. 30, 2015
Document Fiscal Year Focus 2015
Document Fiscal Period Focus Q2
Trading Symbol BK
Entity Registrant Name Bank of New York Mellon CORP
Entity Central Index Key 0001390777
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Current Reporting Status Yes
Entity Voluntary Filers No
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding (shares) 1,106,517,658