v3.22.2.2
Document and Entity Information
Total
Prospectus:  
Document Type 485BPOS
Document Period End Date Aug. 31, 2022
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, 2022
Document Effective Date Nov. 01, 2022
Prospectus Date Nov. 01, 2022
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