v3.25.4
Expense Example - AMERICAN MUTUAL FUND
Dec. 30, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 630
Expense Example, with Redemption, 3 Years 747
Expense Example, with Redemption, 5 Years 875
Expense Example, with Redemption, 10 Years 1,248
Class 529-A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 409
Expense Example, with Redemption, 3 Years 535
Expense Example, with Redemption, 5 Years 673
Expense Example, with Redemption, 10 Years 1,074
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 235
Expense Example, with Redemption, 3 Years 421
Expense Example, with Redemption, 5 Years 729
Expense Example, with Redemption, 10 Years 1,392
Class 529-C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 239
Expense Example, with Redemption, 3 Years 434
Expense Example, with Redemption, 5 Years 750
Expense Example, with Redemption, 10 Years 1,150
Class 529-E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Class 529-T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 312
Expense Example, with Redemption, 3 Years 444
Expense Example, with Redemption, 5 Years 587
Expense Example, with Redemption, 10 Years 1,005
Class T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 307
Expense Example, with Redemption, 3 Years 428
Expense Example, with Redemption, 5 Years 560
Expense Example, with Redemption, 10 Years 946
Class F-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 65
Expense Example, with Redemption, 3 Years 205
Expense Example, with Redemption, 5 Years 357
Expense Example, with Redemption, 10 Years 798
Class 529-F-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 70
Expense Example, with Redemption, 3 Years 221
Expense Example, with Redemption, 5 Years 384
Expense Example, with Redemption, 10 Years 859
Class F-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 39
Expense Example, with Redemption, 3 Years 122
Expense Example, with Redemption, 5 Years 213
Expense Example, with Redemption, 10 Years 480
Class F-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 28
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 152
Expense Example, with Redemption, 10 Years 343
Class 529-F-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 116
Expense Example, with Redemption, 5 Years 202
Expense Example, with Redemption, 10 Years 456
Class 529-F-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 33
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 180
Expense Example, with Redemption, 10 Years 406
Class R-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 138
Expense Example, with Redemption, 3 Years 431
Expense Example, with Redemption, 5 Years 745
Expense Example, with Redemption, 10 Years 1,635
Class R-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 137
Expense Example, with Redemption, 3 Years 428
Expense Example, with Redemption, 5 Years 739
Expense Example, with Redemption, 10 Years 1,624
Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 93
Expense Example, with Redemption, 3 Years 290
Expense Example, with Redemption, 5 Years 504
Expense Example, with Redemption, 10 Years 1,120
Class R-4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 63
Expense Example, with Redemption, 3 Years 199
Expense Example, with Redemption, 5 Years 346
Expense Example, with Redemption, 10 Years 774
Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 33
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 180
Expense Example, with Redemption, 10 Years 406
Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 28
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 152
Expense Example, with Redemption, 10 Years 343
Class R-2E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 109
Expense Example, with Redemption, 3 Years 340
Expense Example, with Redemption, 5 Years 590
Expense Example, with Redemption, 10 Years 1,306
Class R-5E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 43
Expense Example, with Redemption, 3 Years 135
Expense Example, with Redemption, 5 Years 235
Expense Example, with Redemption, 10 Years $ 530