S000000286 [Member] Expense Example, No Redemption - Nuveen All-American Municipal Bond Fund |
Mar. 31, 2026
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 496 |
| Expense Example, No Redemption, 3 Years | 659 |
| Expense Example, No Redemption, 5 Years | 835 |
| Expense Example, No Redemption, 10 Years | 1,345 |
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 59 |
| Expense Example, No Redemption, 3 Years | 186 |
| Expense Example, No Redemption, 5 Years | 324 |
| Expense Example, No Redemption, 10 Years | 726 |
| Class C | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 161 |
| Expense Example, No Redemption, 3 Years | 499 |
| Expense Example, No Redemption, 5 Years | 860 |
| Expense Example, No Redemption, 10 Years | 1,878 |
| Class R6 | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 56 |
| Expense Example, No Redemption, 3 Years | 176 |
| Expense Example, No Redemption, 5 Years | 307 |
| Expense Example, No Redemption, 10 Years | $ 689 |