v2.4.0.6
Document and Entity Information
3 Months Ended
Mar. 31, 2013
May 10, 2013
Document and Entity Information [Abstract]    
Entity Registrant Name MERRILL LYNCH & CO., INC.  
Entity Central Index Key 0000065100  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   1,000
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes