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
C000203455_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000203455_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000203455_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.82%    
C000014129_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014129_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014129_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000204997_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000204997_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000204997_1_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.93%    
C000014045_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014045_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014045_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014046_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014046_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014046_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014044_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014044_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014044_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014042_1_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014042_1_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014042_1_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000132104_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000132104_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000132104_2_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000204996_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000204996_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000204996_2_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.93%    
C000014035_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014035_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014035_2_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014036_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014036_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014036_2_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014034_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014034_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014034_2_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000014032_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000014032_2_BBIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.68%)  
C000014032_2_BBIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.80%
C000250211_2_BBIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.14%    
C000250211_2_BBIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 6.69%    
C000203455_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.72%    
C000203455_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.05%)  
C000203455_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.79%    
C000203455_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.52%    
C000203455_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.30%)  
C000203455_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.46%    
C000014129_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.16%    
C000014129_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.53%)  
C000014129_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.30%
C000014129_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000014129_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000014129_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.34%
C000204997_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.25%    
C000204997_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.44%)  
C000204997_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.47%    
C000204997_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000204997_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000204997_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.43%    
C000014045_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent (1.33%)    
C000014045_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (1.69%)  
C000014045_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.52%
C000014045_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.78%    
C000014045_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.88%)  
C000014045_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.93%
C000014045_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000014045_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000014045_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.34%
C000014046_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.00%    
C000014046_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.60%)  
C000014046_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.23%
C000014046_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000014046_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000014046_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.34%
C000014044_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 0.88%    
C000014044_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (1.67%)  
C000014044_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.32%
C000014044_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 1.87%    
C000014044_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (1.67%)  
C000014044_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.32%
C000014044_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000014044_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000014044_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.34%
C000014042_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent (1.33%)    
C000014042_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (1.69%)  
C000014042_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.52%
C000014042_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.78%    
C000014042_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.89%)  
C000014042_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     0.93%
C000014042_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.36%    
C000014042_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   (0.41%)  
C000014042_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.34%
C000132104_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.56%    
C000132104_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.88%  
C000132104_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.45%
C000132104_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000132104_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000132104_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.49%
C000132104_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000132104_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000132104_1_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.01%
C000204996_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.62%    
C000204996_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.95%  
C000204996_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.01%    
C000204996_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000204996_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000204996_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.98%    
C000204996_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000204996_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000204996_1_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.52%    
C000014035_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.36%    
C000014035_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.00%  
C000014035_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.86%
C000014035_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.25%    
C000014035_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.57%  
C000014035_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.14%
C000014035_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000014035_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000014035_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.49%
C000014035_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000014035_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000014035_1_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.01%
C000014036_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.56%    
C000014036_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.85%  
C000014036_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.42%
C000014036_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000014036_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000014036_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.49%
C000014036_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000014036_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000014036_1_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.01%
C000014034_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 3.45%    
C000014034_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   0.79%  
C000014034_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.51%
C000014034_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.45%    
C000014034_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   0.79%  
C000014034_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.51%
C000014034_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000014034_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000014034_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.49%
C000014034_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000014034_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000014034_1_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.01%
C000014032_ClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 2.36%    
C000014032_ClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.00%  
C000014032_ClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     1.86%
C000014032_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.25%    
C000014032_NoLoadClassMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.57%  
C000014032_NoLoadClassMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.14%
C000014032_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.49%    
C000014032_0_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.84%  
C000014032_0_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.49%
C000014032_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.79%    
C000014032_1_AdditionalIndexMember_5YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent   1.33%  
C000014032_1_AdditionalIndexMember_10YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent     2.01%
C000250211_NoLoadClassMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.44%    
C000250211_NoLoadClassMember_2024-09-01_2025-08-31Member      
Average Annual Return [Line Items]      
Average Annual Return, Percent 6.94%    
C000250211_0_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.36%    
C000250211_0_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 6.87%    
C000250211_1_AdditionalIndexMember_1YRMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.01%    
C000250211_1_AdditionalIndexMember_LOCMember      
Average Annual Return [Line Items]      
Average Annual Return, Percent 6.59%