Shareholder Report, Average Annual Return (Details)
|
12 Months Ended |
60 Months Ended |
120 Months Ended |
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
| C000019124_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019124_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019124_0_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000019123_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019123_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019123_0_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000171439_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000171439_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000171439_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000234190_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234190_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000234191_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234191_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000235214_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000235214_1_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.78%
|
|
|
| C000171440_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000171440_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000171440_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000205020_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000205020_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000205020_1_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.92%
|
|
|
| C000221555_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000221555_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000221555_1_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(0.28%)
|
|
|
| C000201533_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000201533_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000201533_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.02%
|
|
|
| C000019128_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019128_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019128_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000257875_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000257875_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.11%
|
|
|
| C000234193_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234193_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000234194_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234194_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000171438_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000171438_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000171438_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000048836_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000048836_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000048836_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000200823_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000200823_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000200823_1_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.83%
|
|
|
| C000234192_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234192_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000019121_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019121_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019121_0_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000221556_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000221556_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000221556_1_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(0.28%)
|
|
|
| C000234189_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234189_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.78%
|
|
|
| C000205019_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000205019_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000205019_0_BBIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.92%
|
|
|
| C000019125_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019125_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019125_0_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000171437_1_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000171437_1_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000171437_1_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000019120_0_BBIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000019120_0_BBIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.29%)
|
|
| C000019120_0_BBIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.40%
|
| C000019124_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(2.81%)
|
|
|
| C000019124_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(1.22%)
|
|
| C000019124_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.20%
|
| C000019124_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.24%
|
|
|
| C000019124_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.41%)
|
|
| C000019124_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.62%
|
| C000019123_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(0.37%)
|
|
|
| C000019123_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(1.17%)
|
|
| C000019123_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.00%
|
| C000019123_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.60%
|
|
|
| C000019123_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(1.17%)
|
|
| C000019123_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.00%
|
| C000171439_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.50%
|
|
|
| C000171439_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.30%
|
|
| C000171439_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.28%
|
| C000171439_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.49%
|
|
|
| C000171439_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.30%
|
|
| C000171439_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.28%
|
| C000171439_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000171439_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000171439_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.05%
|
| C000234190_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.60%
|
|
|
| C000234190_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.49%
|
|
|
| C000234191_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(1.84%)
|
|
|
| C000234191_ClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.24%
|
|
|
| C000234191_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.25%
|
|
|
| C000234191_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.14%
|
|
|
| C000235214_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.78%
|
|
|
| C000235214_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.72%
|
|
|
| C000235214_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.87%
|
|
|
| C000235214_0_AdditionalIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.79%
|
|
|
| C000171440_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.58%
|
|
|
| C000171440_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.38%
|
|
| C000171440_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.16%
|
| C000171440_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000171440_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000171440_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.05%
|
| C000205020_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.63%
|
|
|
| C000205020_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.43%
|
|
| C000205020_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.67%
|
|
|
| C000205020_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000205020_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000205020_0_AdditionalIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.47%
|
|
|
| C000221555_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.84%
|
|
|
| C000221555_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
3.78%
|
|
| C000221555_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.20%
|
|
|
| C000221555_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.53%
|
|
|
| C000221555_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
3.17%
|
|
| C000221555_0_AdditionalIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.67%
|
|
|
| C000201533_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.09%
|
|
|
| C000201533_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
0.64%
|
|
| C000201533_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.97%
|
|
|
| C000019128_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.57%
|
|
|
| C000019128_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.37%
|
|
| C000019128_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.18%
|
| C000019128_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000019128_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000019128_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.05%
|
| C000257875_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.96%
|
|
|
| C000257875_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.05%
|
|
|
| C000234193_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(1.84%)
|
|
|
| C000234193_ClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.24%
|
|
|
| C000234193_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.25%
|
|
|
| C000234193_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.14%
|
|
|
| C000234194_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.62%
|
|
|
| C000234194_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.40%
|
|
|
| C000171438_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.83%
|
|
|
| C000171438_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.87%
|
|
| C000171438_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.82%
|
| C000171438_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.37%
|
|
|
| C000171438_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.18%
|
|
| C000171438_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.98%
|
| C000171438_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000171438_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000171438_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.05%
|
| C000048836_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.56%
|
|
|
| C000048836_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.01%
|
|
| C000048836_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.00%
|
| C000048836_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.80%
|
|
|
| C000048836_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.05%
|
|
| C000048836_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.90%
|
| C000200823_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
4.11%
|
|
|
| C000200823_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
4.06%
|
|
| C000200823_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.18%
|
|
|
| C000200823_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
3.87%
|
|
|
| C000200823_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
3.70%
|
|
| C000200823_0_AdditionalIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.79%
|
|
|
| C000234192_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.62%
|
|
|
| C000234192_ClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.39%
|
|
|
| C000234192_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.60%
|
|
|
| C000234192_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.39%
|
|
|
| C000019121_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
(2.68%)
|
|
|
| C000019121_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(1.23%)
|
|
| C000019121_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.22%
|
| C000019121_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.37%
|
|
|
| C000019121_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.42%)
|
|
| C000019121_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.63%
|
| C000221556_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.95%
|
|
|
| C000221556_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.48%
|
|
| C000221556_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.17%
|
|
|
| C000221556_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000221556_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000221556_0_AdditionalIndexMember_LOCMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.89%
|
|
|
| C000234189_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.51%
|
|
|
| C000234189_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.40%
|
|
|
| C000205019_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.63%
|
|
|
| C000205019_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.05%)
|
|
| C000205019_NoLoadClassMember_2025-09-01_2026-08-31Member |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.53%
|
|
|
| C000019125_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.49%
|
|
|
| C000019125_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.16%)
|
|
| C000019125_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.88%
|
| C000171437_ClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
0.84%
|
|
|
| C000171437_ClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
1.88%
|
|
| C000171437_ClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.83%
|
| C000171437_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.38%
|
|
|
| C000171437_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.19%
|
|
| C000171437_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.99%
|
| C000171437_0_AdditionalIndexMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
2.69%
|
|
|
| C000171437_0_AdditionalIndexMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
2.17%
|
|
| C000171437_0_AdditionalIndexMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
2.05%
|
| C000019120_NoLoadClassMember_1YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
1.54%
|
|
|
| C000019120_NoLoadClassMember_5YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
(0.12%)
|
|
| C000019120_NoLoadClassMember_10YRMember |
|
|
|
| Average Annual Return [Line Items] |
|
|
|
| Average Annual Return, Percent |
|
|
1.93%
|