v3.25.3
Shareholder Report, Average Annual Return (Details)
12 Months Ended 60 Months Ended 120 Months Ended
Aug. 31, 2025
Aug. 31, 2025
Aug. 31, 2025
C000235234_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235234_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235233_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235233_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235230_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235230_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235232_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235232_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235231_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235231_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235229_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235229_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235217_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235217_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235220_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235220_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235222_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235222_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235221_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235221_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235218_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235218_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000235219_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235219_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000199795_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000199795_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000199795_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.89%    
C000194645_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000194645_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000194645_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.53%    
C000242612_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000242612_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.43%    
C000203456_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000203456_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000203456_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.82%    
C000235215_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000235215_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.74%    
C000242809_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000242809_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.96%    
C000098000_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000098000_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000098000_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000243069_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000243069_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.62%    
C000243071_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000243071_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.62%    
C000243070_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000243070_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.62%    
C000235234_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.81%    
C000235234_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.31%    
C000235234_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235234_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235233_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.86%    
C000235233_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.36%    
C000235233_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235233_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235230_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.06%    
C000235230_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.66%    
C000235230_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.63%    
C000235230_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.13%    
C000235230_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235230_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235232_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.81%    
C000235232_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.31%    
C000235232_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235232_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235231_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.74%    
C000235231_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.23%    
C000235231_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.74%    
C000235231_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.23%    
C000235231_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235231_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235229_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.03%    
C000235229_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.64%    
C000235229_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.60%    
C000235229_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.11%    
C000235229_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235229_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000235217_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.60%    
C000235217_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.86%    
C000235217_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235217_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000235220_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.58%    
C000235220_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.95%    
C000235220_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235220_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000235222_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent (0.83%)    
C000235222_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 0.41%    
C000235222_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.30%    
C000235222_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.62%    
C000235222_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235222_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000235221_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.60%    
C000235221_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.89%    
C000235221_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235221_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000235218_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.43%    
C000235218_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 0.85%    
C000235218_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.43%    
C000235218_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 0.85%    
C000235218_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235218_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000235219_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent (0.76%)    
C000235219_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 0.42%    
C000235219_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.37%    
C000235219_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.64%    
C000235219_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000235219_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000199795_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.11%    
C000199795_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.80%)  
C000199795_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.77%    
C000199795_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000199795_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.66%)  
C000199795_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.89%    
C000194645_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.74%    
C000194645_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.30%  
C000194645_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.11%    
C000194645_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000194645_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000194645_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.17%    
C000242612_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.25%    
C000242612_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.57%    
C000242612_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.17%    
C000242612_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.45%    
C000203456_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.35%    
C000203456_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   0.32%  
C000203456_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.13%    
C000203456_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.92%    
C000203456_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.01%)  
C000203456_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.74%    
C000235215_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.78%    
C000235215_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.41%    
C000235215_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.29%    
C000235215_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.73%    
C000242809_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.55%    
C000242809_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.28%    
C000242809_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.52%    
C000242809_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.16%    
C000098000_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.82%    
C000098000_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   3.11%  
C000098000_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.41%
C000098000_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.60%    
C000098000_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   2.93%  
C000098000_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.12%
C000243069_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.77%    
C000243069_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.43%    
C000243069_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.60%    
C000243069_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.11%    
C000243071_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.72%    
C000243071_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.38%    
C000243071_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.60%    
C000243071_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.11%    
C000243070_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.94%    
C000243070_ClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.47%    
C000243070_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.51%    
C000243070_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.17%    
C000243070_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.60%    
C000243070_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.11%