v2.4.0.8
Document and Entity Information
3 Months Ended
Mar. 31, 2015
Entity [Abstract]  
Entity Registrant Name FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE
Entity Central Index Key 0000310522
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Document Type 10-Q
Document Period End Date Mar. 31, 2015
Document Fiscal Year Focus 2015
Document Fiscal Period Focus Q1
Amendment Flag false
Entity Common Stock, Shares Outstanding 1,158,082,750