Shareholder Report, Average Annual Return (Details) 74200012700_Franklin California Tax-Free Income Fund_Class A1_TSR Annual {Class A1} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Feb. 28, 2026 |
Feb. 28, 2026 |
Feb. 28, 2026 |
|
| Class A1 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A1 (with sales charge) | ||
| Average Annual Return, Percent | 0.36% | 0.51% | 2.09% |
| Without Sales Load [Member] | Class A1 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A1 | ||
| Average Annual Return, Percent | 4.32% | 1.29% | 2.48% |
| Bloomberg Municipal Bond Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||
| Average Annual Return, Percent | 4.96% | 1.44% | 2.43% |
| Bloomberg Municipal Bond California Exempt Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond California Exempt Index | ||
| Average Annual Return, Percent | 4.98% | 1.45% | 2.37% |