Shareholder Report, Line Graph (Details) 74300008300_Franklin Core Plus Bond Fund_Class A_TSR Annual {Class A} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
Apr. 30, 2023 |
Apr. 30, 2022 |
Apr. 30, 2021 |
Apr. 30, 2020 |
Apr. 30, 2019 |
Apr. 30, 2018 |
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2026 |
|
| Class A | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class A (with sales charge) | ||||||||||
| Accumulated Value | $ 12,109 | $ 11,319 | $ 10,977 | $ 10,897 | $ 11,601 | $ 10,262 | $ 10,885 | $ 10,414 | $ 10,347 | $ 9,625 | $ 12,688 |
| Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||||
| Accumulated Value | $ 11,343 | $ 10,500 | $ 10,657 | $ 10,703 | $ 11,698 | $ 11,730 | $ 10,582 | $ 10,051 | $ 10,083 | $ 10,000 | $ 11,803 |