Shareholder Report, Line Graph (Details) - USD ($)
|
12 Months Ended |
60 Months Ended |
96 Months Ended |
108 Months Ended |
132 Months Ended |
Aug. 31, 2025 |
Aug. 31, 2025 |
Aug. 31, 2025 |
Aug. 31, 2025 |
Aug. 31, 2025 |
| C000019283_0_LG_BBIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019283_0_BBIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
$ 10,000
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019283_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000205069_0_LG_BBIndexMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
| C000205069_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,086
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,804
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,794
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,436
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,311
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,064
|
|
|
|
|
| C000205069_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,411
|
|
|
|
|
| C000038101_0_LG_BBIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000038101_0_BBIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000038101_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000038102_0_LG_BBIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000038102_0_BBIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000038102_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000038100_0_LG_BBIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000038100_0_BBIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000038100_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000038098_0_LG_BBIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000038098_0_BBIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000038098_0_BBIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000182864_LG_ClassMember_9YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Total Bond K6 Fund</span>
|
|
| C000182864_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000182864_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,135
|
|
|
|
|
| C000182864_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,068
|
|
|
|
|
| C000182864_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,046
|
|
|
|
|
| C000182864_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,905
|
|
|
|
|
| C000182864_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,206
|
|
|
|
|
| C000182864_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,854
|
|
|
|
|
| C000182864_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,882
|
|
|
|
|
| C000182864_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,779
|
|
|
|
|
| C000182864_LG_1_AdditionalIndexMember_9YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,154
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,047
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,070
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,786
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,776
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,420
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,296
|
|
|
|
|
| C000182864_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,047
|
|
|
|
|
| C000019272_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Total Bond Fund</span>
|
| C000019272_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019272_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,694
|
|
|
|
|
| C000019272_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,915
|
|
|
|
|
| C000019272_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,855
|
|
|
|
|
| C000019272_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,903
|
|
|
|
|
| C000019272_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,810
|
|
|
|
|
| C000019272_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,116
|
|
|
|
|
| C000019272_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,618
|
|
|
|
|
| C000019272_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,661
|
|
|
|
|
| C000019272_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,655
|
|
|
|
|
| C000019272_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,135
|
|
|
|
|
| C000019272_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019272_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019272_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000150510_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span>
|
| C000150510_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000150510_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,714
|
|
|
|
|
| C000150510_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,946
|
|
|
|
|
| C000150510_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,884
|
|
|
|
|
| C000150510_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,946
|
|
|
|
|
| C000150510_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,870
|
|
|
|
|
| C000150510_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,189
|
|
|
|
|
| C000150510_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,702
|
|
|
|
|
| C000150510_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,755
|
|
|
|
|
| C000150510_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,755
|
|
|
|
|
| C000150510_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,265
|
|
|
|
|
| C000150510_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000150510_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000150510_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000019276_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span>
|
| C000019276_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000019276_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,244
|
|
|
|
|
| C000019276_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,424
|
|
|
|
|
| C000019276_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,324
|
|
|
|
|
| C000019276_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,287
|
|
|
|
|
| C000019276_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,113
|
|
|
|
|
| C000019276_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,366
|
|
|
|
|
| C000019276_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,929
|
|
|
|
|
| C000019276_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,936
|
|
|
|
|
| C000019276_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,821
|
|
|
|
|
| C000019276_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,246
|
|
|
|
|
| C000019276_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019276_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019276_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000019277_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span>
|
| C000019277_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019277_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,699
|
|
|
|
|
| C000019277_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,916
|
|
|
|
|
| C000019277_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,839
|
|
|
|
|
| C000019277_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,881
|
|
|
|
|
| C000019277_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,781
|
|
|
|
|
| C000019277_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,080
|
|
|
|
|
| C000019277_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,590
|
|
|
|
|
| C000019277_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,625
|
|
|
|
|
| C000019277_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,598
|
|
|
|
|
| C000019277_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
13,083
|
|
|
|
|
| C000019277_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019277_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019277_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000019275_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span>
|
| C000019275_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019275_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,590
|
|
|
|
|
| C000019275_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,695
|
|
|
|
|
| C000019275_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,524
|
|
|
|
|
| C000019275_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,417
|
|
|
|
|
| C000019275_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,157
|
|
|
|
|
| C000019275_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,316
|
|
|
|
|
| C000019275_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,796
|
|
|
|
|
| C000019275_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,720
|
|
|
|
|
| C000019275_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,587
|
|
|
|
|
| C000019275_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,004
|
|
|
|
|
| C000019275_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019275_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019275_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000019273_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span>
|
| C000019273_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000019273_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,245
|
|
|
|
|
| C000019273_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,426
|
|
|
|
|
| C000019273_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,327
|
|
|
|
|
| C000019273_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,290
|
|
|
|
|
| C000019273_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,114
|
|
|
|
|
| C000019273_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,367
|
|
|
|
|
| C000019273_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,934
|
|
|
|
|
| C000019273_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,941
|
|
|
|
|
| C000019273_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,826
|
|
|
|
|
| C000019273_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,251
|
|
|
|
|
| C000019273_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019273_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019273_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000203458_LG_ClassMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Government Bond Index Fund</span>
|
|
|
| C000203458_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000203458_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,010
|
|
|
|
|
| C000203458_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,052
|
|
|
|
|
| C000203458_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,781
|
|
|
|
|
| C000203458_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,563
|
|
|
|
|
| C000203458_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,330
|
|
|
|
|
| C000203458_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,128
|
|
|
|
|
| C000203458_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,747
|
|
|
|
|
| C000203458_LG_1_AdditionalIndexMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,019
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,052
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,816
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,578
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,340
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,133
|
|
|
|
|
| C000203458_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,744
|
|
|
|
|
| C000203458_LG_2_AdditionalIndexMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,014
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,033
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,747
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,737
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,386
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,262
|
|
|
|
|
| C000203458_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,010
|
|
|
|
|
| C000019284_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Intermediate Government Income Fund</span>
|
| C000019284_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019284_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,262
|
|
|
|
|
| C000019284_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,270
|
|
|
|
|
| C000019284_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,114
|
|
|
|
|
| C000019284_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,852
|
|
|
|
|
| C000019284_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,403
|
|
|
|
|
| C000019284_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,280
|
|
|
|
|
| C000019284_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,361
|
|
|
|
|
| C000019284_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,286
|
|
|
|
|
| C000019284_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,898
|
|
|
|
|
| C000019284_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,309
|
|
|
|
|
| C000019284_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Intermediate Government Bond Index</span>
|
| C000019284_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,303
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,312
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,183
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,941
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,535
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,459
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,596
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,582
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,244
|
|
|
|
|
| C000019284_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,721
|
|
|
|
|
| C000019284_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
| C000019284_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,649
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,537
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,609
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,360
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,350
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,928
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,797
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,585
|
|
|
|
|
| C000019284_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,949
|
|
|
|
|
| C000019283_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Government Income Fund</span>
|
| C000019283_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019283_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,435
|
|
|
|
|
| C000019283_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,391
|
|
|
|
|
| C000019283_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,227
|
|
|
|
|
| C000019283_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,181
|
|
|
|
|
| C000019283_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,845
|
|
|
|
|
| C000019283_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,661
|
|
|
|
|
| C000019283_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,396
|
|
|
|
|
| C000019283_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,142
|
|
|
|
|
| C000019283_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,788
|
|
|
|
|
| C000019283_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,037
|
|
|
|
|
| C000019283_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
| C000019283_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,474
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,429
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,298
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,276
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,989
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,803
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,570
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,356
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,019
|
|
|
|
|
| C000019283_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,313
|
|
|
|
|
| C000019283_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
| C000019283_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,501
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,413
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,257
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,314
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,096
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,852
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,585
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,373
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,999
|
|
|
|
|
| C000019283_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,267
|
|
|
|
|
| C000205069_LG_ClassMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span>
|
|
|
| C000205069_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000205069_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,027
|
|
|
|
|
| C000205069_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,702
|
|
|
|
|
| C000205069_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,520
|
|
|
|
|
| C000205069_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,283
|
|
|
|
|
| C000205069_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,041
|
|
|
|
|
| C000205069_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,689
|
|
|
|
|
| C000205069_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,947
|
|
|
|
|
| C000205069_LG_1_AdditionalIndexMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,042
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,740
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,558
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,350
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,141
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,790
|
|
|
|
|
| C000205069_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,078
|
|
|
|
|
| C000205069_LG_2_AdditionalIndexMember_8YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,132
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,902
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,662
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,415
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,206
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,822
|
|
|
|
|
| C000205069_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,087
|
|
|
|
|
| C000038101_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span>
|
| C000038101_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000038101_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,977
|
|
|
|
|
| C000038101_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,904
|
|
|
|
|
| C000038101_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,718
|
|
|
|
|
| C000038101_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,601
|
|
|
|
|
| C000038101_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,195
|
|
|
|
|
| C000038101_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,980
|
|
|
|
|
| C000038101_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,771
|
|
|
|
|
| C000038101_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,493
|
|
|
|
|
| C000038101_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,076
|
|
|
|
|
| C000038101_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,277
|
|
|
|
|
| C000038101_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
| C000038101_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,474
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,429
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,298
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,276
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,989
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,803
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,570
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,356
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,019
|
|
|
|
|
| C000038101_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,313
|
|
|
|
|
| C000038101_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
| C000038101_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,501
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,413
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,257
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,314
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,096
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,852
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,585
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,373
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,999
|
|
|
|
|
| C000038101_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,267
|
|
|
|
|
| C000038102_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span>
|
| C000038102_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038102_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,419
|
|
|
|
|
| C000038102_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,371
|
|
|
|
|
| C000038102_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,204
|
|
|
|
|
| C000038102_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,161
|
|
|
|
|
| C000038102_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,818
|
|
|
|
|
| C000038102_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,631
|
|
|
|
|
| C000038102_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,368
|
|
|
|
|
| C000038102_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,100
|
|
|
|
|
| C000038102_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,748
|
|
|
|
|
| C000038102_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,992
|
|
|
|
|
| C000038102_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
| C000038102_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,474
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,429
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,298
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,276
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,989
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,803
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,570
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,356
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,019
|
|
|
|
|
| C000038102_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,313
|
|
|
|
|
| C000038102_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
| C000038102_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,501
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,413
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,257
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,314
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,096
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,852
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,585
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,373
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,999
|
|
|
|
|
| C000038102_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,267
|
|
|
|
|
| C000038100_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span>
|
| C000038100_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038100_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,312
|
|
|
|
|
| C000038100_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,158
|
|
|
|
|
| C000038100_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,889
|
|
|
|
|
| C000038100_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,704
|
|
|
|
|
| C000038100_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,213
|
|
|
|
|
| C000038100_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,920
|
|
|
|
|
| C000038100_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,634
|
|
|
|
|
| C000038100_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,295
|
|
|
|
|
| C000038100_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,863
|
|
|
|
|
| C000038100_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,057
|
|
|
|
|
| C000038100_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
| C000038100_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,474
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,429
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,298
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,276
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,989
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,803
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,570
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,356
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,019
|
|
|
|
|
| C000038100_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,313
|
|
|
|
|
| C000038100_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
| C000038100_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,501
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,413
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,257
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,314
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,096
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,852
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,585
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,373
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,999
|
|
|
|
|
| C000038100_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,267
|
|
|
|
|
| C000038098_LG_ClassMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span>
|
| C000038098_ClassMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000038098_ClassMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,976
|
|
|
|
|
| C000038098_ClassMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,903
|
|
|
|
|
| C000038098_ClassMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,716
|
|
|
|
|
| C000038098_ClassMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,597
|
|
|
|
|
| C000038098_ClassMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,190
|
|
|
|
|
| C000038098_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,984
|
|
|
|
|
| C000038098_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,764
|
|
|
|
|
| C000038098_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,484
|
|
|
|
|
| C000038098_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,064
|
|
|
|
|
| C000038098_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,262
|
|
|
|
|
| C000038098_LG_1_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg 75% U.S. Government/25% U.S. Mortgage-Backed Securities Blended Index</span>
|
| C000038098_1_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,474
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,429
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,298
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,276
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,989
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,803
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,570
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,356
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,019
|
|
|
|
|
| C000038098_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,313
|
|
|
|
|
| C000038098_LG_2_AdditionalIndexMember_11YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
|
|
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Government Bond Index</span>
|
| C000038098_2_AdditionalIndexMember_AsOf_2015Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2016Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,501
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2017Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,413
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2018Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,257
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2019Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,314
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2020Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
12,096
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,852
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,585
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,373
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,999
|
|
|
|
|
| C000038098_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
11,267
|
|
|
|
|
| C000227903_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Environmental Bond Fund</span>
|
|
|
|
| C000227903_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227903_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,116
|
|
|
|
|
| C000227903_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,841
|
|
|
|
|
| C000227903_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,748
|
|
|
|
|
| C000227903_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,411
|
|
|
|
|
| C000227903_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227903_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227903_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227903_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227903_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227903_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227903_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227903_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227903_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227903_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227903_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227903_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,499
|
|
|
|
|
| C000227906_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span>
|
|
|
|
| C000227906_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227906_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,118
|
|
|
|
|
| C000227906_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,851
|
|
|
|
|
| C000227906_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,766
|
|
|
|
|
| C000227906_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,438
|
|
|
|
|
| C000227906_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227906_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227906_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227906_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227906_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227906_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227906_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227906_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227906_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227906_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227906_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227906_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,499
|
|
|
|
|
| C000227901_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span>
|
|
|
|
| C000227901_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000227901_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,706
|
|
|
|
|
| C000227901_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,466
|
|
|
|
|
| C000227901_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,357
|
|
|
|
|
| C000227901_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,970
|
|
|
|
|
| C000227901_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227901_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227901_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227901_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227901_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227901_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227901_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227901_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227901_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227901_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227901_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227901_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,499
|
|
|
|
|
| C000227904_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span>
|
|
|
|
| C000227904_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227904_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,116
|
|
|
|
|
| C000227904_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,844
|
|
|
|
|
| C000227904_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,740
|
|
|
|
|
| C000227904_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,407
|
|
|
|
|
| C000227904_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227904_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227904_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227904_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227904_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227904_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227904_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227904_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227904_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227904_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227904_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227904_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,499
|
|
|
|
|
| C000227905_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span>
|
|
|
|
| C000227905_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227905_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,090
|
|
|
|
|
| C000227905_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,736
|
|
|
|
|
| C000227905_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,560
|
|
|
|
|
| C000227905_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,129
|
|
|
|
|
| C000227905_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227905_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227905_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227905_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227905_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227905_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227905_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227905_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227905_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227905_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227905_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227905_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,499
|
|
|
|
|
| C000227902_LG_ClassMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span>
|
|
|
|
| C000227902_ClassMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,600
|
|
|
|
|
| C000227902_ClassMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,706
|
|
|
|
|
| C000227902_ClassMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,465
|
|
|
|
|
| C000227902_ClassMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,355
|
|
|
|
|
| C000227902_ClassMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227902_LG_1_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg MSCI Global Green USD Bond Index (Hedged USD)</span>
|
|
|
|
| C000227902_1_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227902_1_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,120
|
|
|
|
|
| C000227902_1_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,921
|
|
|
|
|
| C000227902_1_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,966
|
|
|
|
|
| C000227902_1_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
9,691
|
|
|
|
|
| C000227902_LG_2_AdditionalIndexMember_5YRMember |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Line Graph and Table Measure Name |
|
<span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span>
|
|
|
|
| C000227902_2_AdditionalIndexMember_AsOf_2021Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,000
|
|
|
|
|
| C000227902_2_AdditionalIndexMember_AsOf_2022Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
10,126
|
|
|
|
|
| C000227902_2_AdditionalIndexMember_AsOf_2023Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,960
|
|
|
|
|
| C000227902_2_AdditionalIndexMember_AsOf_2024Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
8,853
|
|
|
|
|
| C000227902_2_AdditionalIndexMember_AsOf_2025Member |
|
|
|
|
|
| Account Value [Line Items] |
|
|
|
|
|
| Accumulated Value |
$ 9,499
|
|
|
|
|