XML 9 R2.htm IDEA: XBRL DOCUMENT v3.23.1
Risk/Return Summary - FidelityShort-TermBondFund-RetailPRO - FidelityShort-TermBondFund-RetailPRO - Fidelity Short-Term Bond Fund
Oct. 29, 2022
Risk/Return:  
Supplement to Prospectus [Text Block] Supplement to the Fidelity® Short-Term Bond Fund October 29, 2022 Prospectus
Operating Expenses Caption [Text] Annual Operating Expenses