Document and Entity Information
Total
Document And Entity Information  
Document Type 485BPOS
Document Period End Date Dec. 31, 2019
Entity Registrant Name ELFUN GOVERNMENT MONEY MARKET FUND
Entity Central Index Key 0000855630
Entity Inv Company Type N-1A
Amendment Flag false
Document Creation Date Apr. 24, 2020
Document Effective Date Apr. 30, 2020
Prospectus Date Apr. 30, 2020