v3.25.3
Expense Example - U.S. GOVERNMENT SECURITIES FUND
Oct. 31, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 439
Expense Example, with Redemption, 3 Years 581
Expense Example, with Redemption, 5 Years 737
Expense Example, with Redemption, 10 Years 1,187
Class 529-A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 414
Expense Example, with Redemption, 3 Years 557
Expense Example, with Redemption, 5 Years 713
Expense Example, with Redemption, 10 Years 1,164
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 240
Expense Example, with Redemption, 3 Years 443
Expense Example, with Redemption, 5 Years 768
Expense Example, with Redemption, 10 Years 1,489
Class 529-C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 246
Expense Example, with Redemption, 3 Years 459
Expense Example, with Redemption, 5 Years 795
Expense Example, with Redemption, 10 Years 1,245
Class 529-E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 89
Expense Example, with Redemption, 3 Years 284
Expense Example, with Redemption, 5 Years 496
Expense Example, with Redemption, 10 Years 1,105
Class 529-T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 318
Expense Example, with Redemption, 3 Years 468
Expense Example, with Redemption, 5 Years 632
Expense Example, with Redemption, 10 Years 1,108
Class T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 313
Expense Example, with Redemption, 3 Years 453
Expense Example, with Redemption, 5 Years 606
Expense Example, with Redemption, 10 Years 1,049
Class F-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 392
Expense Example, with Redemption, 10 Years 880
Class 529-F-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 76
Expense Example, with Redemption, 3 Years 243
Expense Example, with Redemption, 5 Years 425
Expense Example, with Redemption, 10 Years 951
Class F-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 37
Expense Example, with Redemption, 3 Years 122
Expense Example, with Redemption, 5 Years 216
Expense Example, with Redemption, 10 Years 490
Class F-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 26
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 154
Expense Example, with Redemption, 10 Years 353
Class 529-F-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 38
Expense Example, with Redemption, 3 Years 125
Expense Example, with Redemption, 5 Years 221
Expense Example, with Redemption, 10 Years 502
Class 529-F-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 182
Expense Example, with Redemption, 10 Years 415
Class R-1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 135
Expense Example, with Redemption, 3 Years 428
Expense Example, with Redemption, 5 Years 742
Expense Example, with Redemption, 10 Years 1,632
Class R-2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 134
Expense Example, with Redemption, 3 Years 425
Expense Example, with Redemption, 5 Years 736
Expense Example, with Redemption, 10 Years 1,621
Class R-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 290
Expense Example, with Redemption, 5 Years 506
Expense Example, with Redemption, 10 Years 1,129
Class R-4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 61
Expense Example, with Redemption, 3 Years 199
Expense Example, with Redemption, 5 Years 348
Expense Example, with Redemption, 10 Years 783
Class R-5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 103
Expense Example, with Redemption, 5 Years 182
Expense Example, with Redemption, 10 Years 415
Class R-6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 26
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 154
Expense Example, with Redemption, 10 Years 353
Class R-2E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 107
Expense Example, with Redemption, 3 Years 340
Expense Example, with Redemption, 5 Years 593
Expense Example, with Redemption, 10 Years 1,314
Class R-5E  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 41
Expense Example, with Redemption, 3 Years 135
Expense Example, with Redemption, 5 Years 238
Expense Example, with Redemption, 10 Years $ 539