v3.25.0.1
Average Annual Total Returns - FidelityAdvisorStrategicIncomeFund-AMCIZPRO - FidelityAdvisorStrategicIncomeFund-AMCIZPRO - Fidelity Advisor Strategic Income Fund
Mar. 01, 2025
Fidelity Advisor Strategic Income Fund - Class A | Return Before Taxes  
Average Annual Return:  
Past 1 year 1.53%
Past 5 years 1.78%
Past 10 years 3.02%
Fidelity Advisor Strategic Income Fund - Class A | After Taxes on Distributions  
Average Annual Return:  
Past 1 year (0.03%)
Past 5 years 0.20%
Past 10 years 1.50%
Fidelity Advisor Strategic Income Fund - Class A | After Taxes on Distributions and Sales  
Average Annual Return:  
Past 1 year 0.93%
Past 5 years 0.72%
Past 10 years 1.67%
Fidelity Advisor Strategic Income Fund - Class C | Return Before Taxes  
Average Annual Return:  
Past 1 year 3.89%
Past 5 years 1.82%
Past 10 years 2.83%
Fidelity Advisor Strategic Income Fund - Class M | Return Before Taxes  
Average Annual Return:  
Past 1 year 1.54%
Past 5 years 1.78%
Past 10 years 3.02%
Fidelity Advisor Strategic Income Fund - Class I | Return Before Taxes  
Average Annual Return:  
Past 1 year 6.00%
Past 5 years 2.86%
Past 10 years 3.69%
Fidelity Advisor Strategic Income Fund - Class Z | Return Before Taxes  
Average Annual Return:  
Past 1 year 6.11%
Past 5 years 2.96%
Since Inception 3.67% [1]
F0097  
Average Annual Return:  
Past 1 year 5.23%
Past 5 years 1.90%
Past 10 years 3.14%
LB091  
Average Annual Return:  
Past 1 year 2.04%
Past 5 years 0.06%
Past 10 years 1.73%
[1]
A From October 2, 2018 .