S000000598 [Member] Expense Example, No Redemption - Nuveen Michigan Municipal Bond Fund |
May 31, 2026
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 500 |
| Expense Example, No Redemption, 3 Years | 671 |
| Expense Example, No Redemption, 5 Years | 856 |
| Expense Example, No Redemption, 10 Years | 1,391 |
| Class C | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 165 |
| Expense Example, No Redemption, 3 Years | 511 |
| Expense Example, No Redemption, 5 Years | 881 |
| Expense Example, No Redemption, 10 Years | 1,922 |
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 63 |
| Expense Example, No Redemption, 3 Years | 198 |
| Expense Example, No Redemption, 5 Years | 346 |
| Expense Example, No Redemption, 10 Years | $ 774 |