Vanguard New York Municipal Money Market Fund Investment Objectives and Goals - Retail Prospectus [Member] - Vanguard New York Municipal Money Market Fund |
Nov. 30, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:13pt;font-weight:bold;">Vanguard New York Municipal Money Market Fund</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | Vanguard New York Municipal Money Market Fund (the “Fund”) seeks to provide current income that is exempt from both federal and New York personal income taxes while maintaining a stable net asset value of $1 per share. The Fund is intended for New York residents only. |