Shareholder Report, Line Graph (Details) 74200012700_Franklin California Tax-Free Income Fund_Advisor Class_TSR Annual {Advisor Class} - USD ($) |
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Feb. 28, 2025 |
Feb. 29, 2024 |
Feb. 28, 2023 |
Feb. 28, 2022 |
Feb. 28, 2021 |
Feb. 29, 2020 |
Feb. 28, 2019 |
Feb. 28, 2018 |
Feb. 28, 2017 |
Feb. 29, 2016 |
Feb. 28, 2026 |
|
| Advisor Class | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Advisor Class | |||||||||||
| Accumulated Value | $ 12,876 | $ 12,348 | $ 11,951 | $ 11,242 | $ 12,011 | $ 12,034 | $ 12,120 | $ 10,757 | $ 10,370 | $ 10,132 | $ 10,000 | |
| Bloomberg Municipal Bond Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | |||||||||||
| Accumulated Value | 12,713 | 12,112 | 11,764 | 11,159 | 11,759 | 11,837 | 11,713 | 10,700 | 10,276 | 10,025 | 10,000 | |
| Bloomberg Municipal Bond California Exempt Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond California Exempt Index | |||||||||||
| Accumulated Value | $ 12,642 | $ 12,042 | $ 11,738 | $ 11,124 | $ 11,676 | $ 11,763 | $ 11,693 | $ 10,654 | $ 10,259 | $ 9,997 | $ 10,000 |