Shareholder Report, Line Graph (Details) - USD ($) |
6 Months Ended | 12 Months Ended | 18 Months Ended | 24 Months Ended | 30 Months Ended | 36 Months Ended | 42 Months Ended | 48 Months Ended | 54 Months Ended | 60 Months Ended | 66 Months Ended | 72 Months Ended | 78 Months Ended | 84 Months Ended | 90 Months Ended | 96 Months Ended | 102 Months Ended | 108 Months Ended | 114 Months Ended | 120 Months Ended | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 27, 2017 |
Jul. 31, 2016 |
Jul. 31, 2017 |
Jul. 31, 2026 |
Jul. 31, 2017 |
Jul. 31, 2018 |
Jul. 31, 2018 |
Jul. 31, 2019 |
Jul. 31, 2019 |
Jul. 31, 2020 |
Jul. 31, 2020 |
Jul. 31, 2021 |
Jul. 31, 2021 |
Jul. 31, 2022 |
Jul. 31, 2022 |
Jul. 31, 2023 |
Jul. 31, 2023 |
Jul. 31, 2024 |
Jul. 31, 2024 |
Jul. 31, 2025 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2026 |
|
| American Funds Tax-Exempt Fund of New York® - Class A | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | American Funds Tax-Exempt Fund of New York — Class A (with sales charge) | ||||||||||||||||||||||
| Accumulated Value | $ 9,625 | $ 9,588 | $ 9,660 | $ 10,295 | $ 10,622 | $ 11,202 | $ 10,258 | $ 10,311 | $ 10,814 | $ 10,585 | $ 11,246 | ||||||||||||
| American Funds Tax-Exempt Fund of New York® - Class C | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | American Funds Tax-Exempt Fund of New York — Class C (with sales charge) | ||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,883 | 9,879 | 10,446 | 10,698 | 11,198 | 10,178 | 10,153 | 10,570 | 10,346 | 10,992 | ||||||||||||
| American Funds Tax-Exempt Fund of New York® - Class F-1 | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | American Funds Tax-Exempt Fund of New York — Class F-1 | ||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,962 | 10,032 | 10,686 | 11,024 | 11,624 | 10,644 | 10,692 | 11,202 | 10,953 | 11,625 | ||||||||||||
| American Funds Tax-Exempt Fund of New York® - Class F-2 | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | American Funds Tax-Exempt Fund of New York — Class F-2 | ||||||||||||||||||||||
| Accumulated Value | 10,000 | 9,973 | 10,062 | 10,740 | 11,100 | 11,727 | 10,758 | 10,832 | 11,382 | 11,160 | 11,876 | ||||||||||||
| American Funds Tax-Exempt Fund of New York® - Class F-3 | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | American Funds Tax-Exempt Fund of New York — Class F-3 | ||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,354 | $ 10,457 | $ 11,172 | $ 11,558 | $ 12,223 | $ 11,225 | $ 11,315 | $ 11,901 | $ 11,682 | $ 12,445 | ||||||||||||
| Bloomberg Municipal Bond Index [Member] | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||
| Accumulated Value | 10,000 | 10,000 | 10,391 | 10,026 | 10,494 | 10,125 | 11,261 | 10,865 | 11,865 | 11,447 | 12,255 | 11,824 | 11,406 | 11,005 | 11,512 | 11,107 | 11,943 | 11,523 | 11,942 | 11,522 | 12,571 | 12,129 | |
| Bloomberg New York Municipal Index [Member] | |||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg New York Municipal Index | ||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,000 | $ 10,383 | $ 10,034 | $ 10,434 | $ 10,083 | $ 11,182 | $ 10,806 | $ 11,663 | $ 11,271 | $ 12,109 | $ 11,702 | $ 11,225 | $ 10,848 | $ 11,384 | $ 11,001 | $ 11,827 | $ 11,429 | $ 11,740 | $ 11,345 | $ 12,394 | $ 11,978 | |