v3.23.3
Document and Entity Information
Total
Prospectus:  
Document Type 485BPOS
Document Period End Date Aug. 31, 2023
Entity Registrant Name AMERICAN FUNDS MORTGAGE FUND
Entity Central Index Key 0001496998
Entity Inv Company Type N-1A
Amendment Flag false
Document Creation Date Nov. 01, 2023
Document Effective Date Nov. 01, 2023
Prospectus Date Nov. 01, 2023
AMERICAN FUNDS MORTGAGE FUND | Class A  
Prospectus:  
Trading Symbol MFAAX
AMERICAN FUNDS MORTGAGE FUND | Class 529-F-1  
Prospectus:  
Trading Symbol CMFFX
AMERICAN FUNDS MORTGAGE FUND | Class R-1  
Prospectus:  
Trading Symbol RMAAX
AMERICAN FUNDS MORTGAGE FUND | Class R-2  
Prospectus:  
Trading Symbol RMABX
AMERICAN FUNDS MORTGAGE FUND | Class R-3  
Prospectus:  
Trading Symbol RMACX
AMERICAN FUNDS MORTGAGE FUND | Class R-4  
Prospectus:  
Trading Symbol RMAEX
AMERICAN FUNDS MORTGAGE FUND | Class R-5  
Prospectus:  
Trading Symbol RMAFX
AMERICAN FUNDS MORTGAGE FUND | Class R-6  
Prospectus:  
Trading Symbol RMAGX
AMERICAN FUNDS MORTGAGE FUND | Class C  
Prospectus:  
Trading Symbol MFACX
AMERICAN FUNDS MORTGAGE FUND | Class F-1  
Prospectus:  
Trading Symbol MFAEX
AMERICAN FUNDS MORTGAGE FUND | Class F-2  
Prospectus:  
Trading Symbol MFAFX
AMERICAN FUNDS MORTGAGE FUND | Class 529-A  
Prospectus:  
Trading Symbol CMFAX
AMERICAN FUNDS MORTGAGE FUND | Class 529-C  
Prospectus:  
Trading Symbol CMFCX
AMERICAN FUNDS MORTGAGE FUND | Class 529-E  
Prospectus:  
Trading Symbol CMFEX
AMERICAN FUNDS MORTGAGE FUND | Class R-2E  
Prospectus:  
Trading Symbol RMBEX
AMERICAN FUNDS MORTGAGE FUND | Class R-5E  
Prospectus:  
Trading Symbol RMAHX
AMERICAN FUNDS MORTGAGE FUND | Class F-3  
Prospectus:  
Trading Symbol AFFMX
AMERICAN FUNDS MORTGAGE FUND | Class 529-T  
Prospectus:  
Trading Symbol TMFMX
AMERICAN FUNDS MORTGAGE FUND | Class T  
Prospectus:  
Trading Symbol TFMFX
AMERICAN FUNDS MORTGAGE FUND | Class 529-F-2  
Prospectus:  
Trading Symbol FFMFX
AMERICAN FUNDS MORTGAGE FUND | Class 529-F-3  
Prospectus:  
Trading Symbol FMMFX