v3.25.1
Average Annual Total Returns - FidelityTax-FreeBondFund-PRO - FidelityTax-FreeBondFund-PRO - Fidelity Tax-Free Bond Fund
Apr. 01, 2025
Fidelity Tax-Free Bond Fund | Return Before Taxes  
Average Annual Return:  
Past 1 year 1.77%
Past 5 years 1.17%
Past 10 years 2.49%
Fidelity Tax-Free Bond Fund | After Taxes on Distributions  
Average Annual Return:  
Past 1 year 1.77%
Past 5 years 1.14%
Past 10 years 2.44%
Fidelity Tax-Free Bond Fund | After Taxes on Distributions and Sales  
Average Annual Return:  
Past 1 year 2.30%
Past 5 years 1.53%
Past 10 years 2.60%
LB123  
Average Annual Return:  
Past 1 year 0.82%
Past 5 years 0.93%
Past 10 years 2.37%
LB015  
Average Annual Return:  
Past 1 year 1.05%
Past 5 years 0.99%
Past 10 years 2.25%