v3.26.1
Shareholder Report, Average Annual Return (Details) 74200012800_Franklin New York Tax-Free Income Fund_Class R6_TSR Annual {Class R6}
12 Months Ended 60 Months Ended 120 Months Ended
Feb. 28, 2026
Feb. 28, 2026
Feb. 28, 2026
Class R6      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class R6    
Average Annual Return, Percent 3.94% 1.01% 1.81%
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 New York Municipal Bond Index [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg New York Municipal Bond Index    
Average Annual Return, Percent 4.65% 1.47% 2.29%