v3.26.1
Shareholder Report
12 Months Ended
Feb. 28, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR/A
Amendment Flag false
Registrant Name NUVEEN MULTISTATE TRUST II /MA/
Entity Central Index Key 0001018975
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2026
C000001519 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California Municipal Bond Fund
Class Name Class I Shares
Trading Symbol NCSPX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen California Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $54    0.53%
* Annualized for period less than one year.
Expenses Paid, Amount $ 54
Expense Ratio, Percent 0.53% [1]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California Municipal Bond Fund returned 3.93% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond California Index, which returned 4.67%.
 
Top contributors to relative performance
 
Sector positioning, particularly an underweight to the industrial development revenue bond segment and an overweight to the multi-family housing segment.
 
An overweight to A‑rated and BBB‑rated bonds.
 
Top detractors from relative performance
 
An overweight to non‑rated bonds.
 
Duration positioning, particularly an overweight to bonds with durations of 10 years and longer.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year      5‑Year      10‑Year  
       
Class I Shares at NAV
     3.93      0.87      2.22
       
S&P Municipal Bond Index
     4.85      1.62      2.51
       
S&P Municipal Bond California Index
     4.67      1.45      2.40
       
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,673,276,126
Holdings Count | Holding 281
Advisory Fees Paid, Amount $ 7,702,590
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $1,673,276,126  
Total number of portfolio holdings
     281  
Portfolio turnover (%)
     27%  
Total management fees paid for the year
     $    7,702,590  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000137687 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California Municipal Bond Fund
Class Name Class C Shares
Trading Symbol NAKFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen California Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website  https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $155    1.53%
* Annualized for period less than one year.
Expenses Paid, Amount $ 155
Expense Ratio, Percent 1.53% [2]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California Municipal Bond Fund returned 2.91% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond California Index, which returned 4.67%.
 
Top contributors to relative performance
 
Sector positioning, particularly an underweight to the industrial development revenue bond segment and an overweight to the multi-family housing segment.
 
An overweight to A‑rated and BBB‑rated bonds.
 
Top detractors from relative performance
 
An overweight to non‑rated bonds.
 
Duration positioning, particularly an overweight to bonds with durations of 10 years and longer.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year      5‑Year      10‑Year  
       
Class C Shares at NAV (excluding maximum sales charge)
     2.91      (0.14 )%       1.37
       
S&P Municipal Bond Index
     4.85      1.62      2.51
       
S&P Municipal Bond California Index
     4.67      1.45      2.40
       
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,673,276,126
Holdings Count | Holding 281
Advisory Fees Paid, Amount $ 7,702,590
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $1,673,276,126  
Total number of portfolio holdings
     281  
Portfolio turnover (%)
     27%  
Total management fees paid for the year
     $    7,702,590  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001516 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California Municipal Bond Fund
Class Name Class A Shares
Trading Symbol NCAAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen California Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $74    0.73%
* Annualized for period less than one year.
Expenses Paid, Amount $ 74
Expense Ratio, Percent 0.73% [3]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California Municipal Bond Fund returned 3.64% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond California Index, which returned 4.67%.
 
Top contributors to relative performance
 
Sector positioning, particularly an underweight to the industrial development revenue bond segment and an overweight to the multi-family housing segment.
 
An overweight to A‑rated and BBB‑rated bonds.
 
Top detractors from relative performance
 
An overweight to non‑rated bonds.
 
Duration positioning, particularly an overweight to bonds with durations of 10 years and longer.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class A Shares at NAV (excluding maximum sales charge)
     3.64      0.67      2.02
Class A Shares at maximum sales charge (Offering Price)
     (0.68 )%       (0.19 )%       1.58
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Bond California Index
     4.67      1.45      2.40
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,673,276,126
Holdings Count | Holding 281
Advisory Fees Paid, Amount $ 7,702,590
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 1,673,276,126  
Total number of portfolio holdings
     281  
Portfolio turnover (%)
     27%  
Total management fees paid for the year
   $     7,702,590  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001524 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Connecticut Municipal Bond Fund
Class Name Class A Shares
Trading Symbol FCTTX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen Connecticut Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $83    0.81%
* Annualized for period less than one year.
Expenses Paid, Amount $ 83
Expense Ratio, Percent 0.81% [4]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Connecticut Municipal Bond Fund returned 3.96% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Connecticut Index, which returned 5.26%.
 
Top contributors to relative performance
 
Duration positioning, especially underweights to bonds with durations of zero to four years and overweights to bonds with durations of 12+ years and longer.
 
Top detractors from relative performance
 
An overweight to A‑rated bonds.
 
Sector selection, especially overweights to the higher education and transportation bond segments.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class A Shares at NAV (excluding maximum sales charge)
   3.96%    0.78%    1.78%
       
Class A Shares at maximum sales charge (Offering Price)
   (0.37)%    (0.08)%    1.34%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Connecticut Index
   5.26%    1.87%    2.48%
       
Lipper Other States Municipal Debt Funds Classification Average
   4.26%    0.87%    1.69%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 243,146,236
Holdings Count | Holding 144
Advisory Fees Paid, Amount $ 1,126,748
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $243,146,236  
Total number of portfolio holdings
     144  
Portfolio turnover (%)
     13%  
Total management fees paid for the year
     $   1,126,748  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000137688 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Connecticut Municipal Bond Fund
Class Name Class C Shares
Trading Symbol FDCDX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen Connecticut Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
    Cost of a
$10,000 investment
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $164   1.61%
* Annualized for period less than one year.
Expenses Paid, Amount $ 164
Expense Ratio, Percent 1.61% [5]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Connecticut Municipal Bond Fund returned 3.22% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Connecticut Index, which returned 5.26%.
 
Top contributors to relative performance
 
Duration positioning, especially underweights to bonds with durations of zero to four years and overweights to bonds with durations of 12+ years and longer.
 
Top detractors from relative performance
 
An overweight to A‑rated bonds.
 
Sector selection, especially overweights to the higher education and transportation bond segments.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class C Shares at NAV (excluding maximum sales charge)
   3.22%    0.00%    1.13%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Connecticut Index
   5.26%    1.87%    2.48%
       
Lipper Other States Municipal Debt Funds Classification Average
   4.26%    0.87%    1.69%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 243,146,236
Holdings Count | Holding 144
Advisory Fees Paid, Amount $ 1,126,748
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 243,146,236  
Total number of portfolio holdings
     144  
Portfolio turnover (%)
     13%  
Total management fees paid for the year
   $   1,126,748  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001527 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Connecticut Municipal Bond Fund
Class Name Class I Shares
Trading Symbol FCTRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen Connecticut Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $62    0.61%
* Annualized for period less than one year.
Expenses Paid, Amount $ 62
Expense Ratio, Percent 0.61% [6]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Connecticut Municipal Bond Fund returned 4.26% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Connecticut Index, which returned 5.26%.
 
Top contributors to relative performance
 
Duration positioning, especially underweights to bonds with durations of zero to four years and overweights to bonds with durations of 12+ years and longer.
 
Top detractors from relative performance
 
An overweight to A‑rated bonds.
 
Sector selection, especially overweights to the higher education and transportation bond segments.
 
 
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class I Shares at NAV
   4.26%    1.00%    2.00%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Connecticut Index
   5.26%    1.87%    2.48%
       
Lipper Other States Municipal Debt Funds Classification Average
   4.26%    0.87%    1.69%
No Deduction of Taxes [Text Block]  The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 243,146,236
Holdings Count | Holding 144
Advisory Fees Paid, Amount $ 1,126,748
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $243,146,236  
Total number of portfolio holdings
     144  
Portfolio turnover (%)
     13%  
Total management fees paid for the year
     $  1,126,748  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001531 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Massachusetts Municipal Bond Fund
Class Name Class I Shares
Trading Symbol NBMAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen Massachusetts Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a  
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $62    0.61%
* Annualized for period less than one year.
Expenses Paid, Amount $ 62
Expense Ratio, Percent 0.61% [7]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Massachusetts Municipal Bond Fund returned 3.35% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Massachusetts Index, which returned 5.03%.
 
Top contributors to relative performance
 
Duration positioning, particularly underweights to bonds with durations of zero to four years and overweights to bonds with durations of four to 12 years.
 
Sector selection, particularly an underweight to tax‑supported bonds, with longer-duration issues performing well.
 
Top detractors from relative performance
 
Security selection.
 
Credit-quality allocation, particularly an overweight to BBB‑rated bonds.
 
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class I Shares at NAV
   3.35%    0.52%    1.89%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Massachusetts Index
   5.03%    1.37%    2.20%
       
Lipper Massachusetts Municipal Debt Funds Classification Average
   3.73%    0.58%    1.51%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 429,916,949
Holdings Count | Holding 150
Advisory Fees Paid, Amount $ 2,069,970
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $429,916,949  
Total number of portfolio holdings
     150  
Portfolio turnover (%)
     21%  
Total management fees paid for the year
     $  2,069,970  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000137689 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Massachusetts Municipal Bond Fund
Class Name Class C Shares
Trading Symbol NAAGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen Massachusetts Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a  
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $163    1.61%
* Annualized for period less than one year.
Expenses Paid, Amount $ 163
Expense Ratio, Percent 1.61% [8]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Massachusetts Municipal Bond Fund returned 2.39% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Massachusetts Index, which returned 5.03%.
 
Top contributors to relative performance
 
Duration positioning, particularly underweights to bonds with durations of zero to four years and overweights to bonds with durations of four to 12 years.
 
Sector selection, particularly an underweight to tax‑supported bonds, with longer-duration issues performing well.
 
Top detractors from relative performance
 
Security selection.
 
Credit-quality allocation, particularly an overweight to BBB‑rated bonds.
 
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class C Shares at NAV (excluding maximum sales charge)
   2.39%    (0.46)%    1.03%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Massachusetts Index
   5.03%    1.37%    2.20%
       
Lipper Massachusetts Municipal Debt Funds Classification Average
   3.73%    0.58%    1.51%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 429,916,949
Holdings Count | Holding 150
Advisory Fees Paid, Amount $ 2,069,970
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $429,916,949  
Total number of portfolio holdings
     150  
Portfolio turnover (%)
     21%  
Total management fees paid for the year
     $  2,069,970  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001528 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Massachusetts Municipal Bond Fund
Class Name Class A Shares
Trading Symbol NMAAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen Massachusetts Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $82    0.81%
* Annualized for period less than one year.
Expenses Paid, Amount $ 82
Expense Ratio, Percent 0.81% [9]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen Massachusetts Municipal Bond Fund returned 3.14% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond Massachusetts Index, which returned 5.03%.
 
Top contributors to relative performance
 
Duration positioning, particularly underweights to bonds with durations of zero to four years and overweights to bonds with durations of four to 12 years.
 
Sector selection, particularly an underweight to tax‑supported bonds, with longer-duration issues performing well.
 
Top detractors from relative performance
 
Security selection.
 
Credit-quality allocation, particularly an overweight to BBB‑rated bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class A Shares at NAV (excluding maximum sales charge)
   3.14%    0.31%    1.68%
       
Class A Shares at maximum sales charge (Offering Price)
   (1.22)%    (0.55)%    1.24%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond Massachusetts Index
   5.03%    1.37%    2.20%
       
Lipper Massachusetts Municipal Debt Funds Classification Average
   3.73%    0.58%    1.51%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 429,916,949
Holdings Count | Holding 150
Advisory Fees Paid, Amount $ 2,069,970
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $429,916,949  
Total number of portfolio holdings
     150  
Portfolio turnover (%)
     21%  
Total management fees paid for the year
     $  2,069,970  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001536 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New Jersey Municipal Bond Fund
Class Name Class A Shares
Trading Symbol NNJAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen New Jersey Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $82    0.80%
* Annualized for period less than one year.
Expenses Paid, Amount $ 82
Expense Ratio, Percent 0.80% [10]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New Jersey Municipal Bond Fund returned 4.20% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New Jersey Index, which returned 5.19%.
 
Top contributors to relative performance
 
Security selection.
 
An underweight to the toll-road bond segment and an overweight to the local general obligation and housing bond segments.
 
Top detractors from relative performance
 
Duration and yield curve positioning, particularly overweights to bonds with durations of 12 years and longer and underweights to bonds with durations from zero to four years.
 
An underweight to state-supported debt.
 
Credit-quality positioning, particularly an underweight to A‑rated bonds and an overweight to BBB‑rated bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class A Shares at NAV (excluding maximum sales charge)
   4.20%    1.08%    2.33%
       
Class A Shares at maximum sales charge (Offering Price)
   (0.14)%    0.22%    1.89%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond New Jersey Index
   5.19%    2.01%    3.19%
       
Lipper New Jersey Municipal Debt Funds Classification Average
   4.30%    1.26%    2.35%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 390,874,486
Holdings Count | Holding 271
Advisory Fees Paid, Amount $ 1,781,405
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
     $390,874,486  
Total number of portfolio holdings
     271  
Portfolio turnover (%)
     15%  
Total management fees paid for the year
     $  1,781,405  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective September 18, 2025, Kristen DeJong was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en-us/mutual-funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en-us/mutual-funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en-us/mutual-funds/prospectuses
C000137690 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New Jersey Municipal Bond Fund
Class Name Class C Shares
Trading Symbol NJCCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen New Jersey Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $163    1.60%
* Annualized for period less than one year.
Expenses Paid, Amount $ 163
Expense Ratio, Percent 1.60% [11]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New Jersey Municipal Bond Fund returned 3.28% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New Jersey Index, which returned 5.19%.
 
Top contributors to relative performance
 
Security selection.
 
An underweight to the toll-road bond segment and an overweight to the local general obligation and housing bond segments.
 
Top detractors from relative performance
 
Duration and yield curve positioning, particularly overweights to bonds with durations of 12 years and longer and underweights to bonds with durations from zero to four years.
 
An underweight to state-supported debt.
 
Credit-quality positioning, particularly an underweight to A‑rated bonds and an overweight to BBB‑rated bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year      5‑Year      10‑Year  
       
Class C Shares at NAV (excluding maximum sales charge)
     3.28      0.25      1.68
       
S&P Municipal Bond Index
     4.85      1.62      2.51
       
S&P Municipal Bond New Jersey Index
     5.19      2.01      3.19
       
Lipper New Jersey Municipal Debt Funds Classification Average
     4.30      1.26      2.35
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 390,874,486
Holdings Count | Holding 271
Advisory Fees Paid, Amount $ 1,781,405
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 390,874,486  
Total number of portfolio holdings
     271  
Portfolio turnover (%)
     15%  
Total management fees paid for the year
   $ 1,781,405  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective September 18, 2025, Kristen DeJong was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001539 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New Jersey Municipal Bond Fund
Class Name Class I Shares
Trading Symbol NMNJX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen New Jersey Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en-us/mutual-funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en-us/mutual-funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $61    0.60%
* Annualized for period less than one year.
Expenses Paid, Amount $ 61
Expense Ratio, Percent 0.60% [12]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New Jersey Municipal Bond Fund returned 4.33% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New Jersey Index, which returned 5.19%.
 
Top contributors to relative performance
 
Security selection.
 
An underweight to the toll-road bond segment and an overweight to the local general obligation and housing bond segments.
 
Top detractors from relative performance
 
Duration and yield curve positioning, particularly overweights to bonds with durations of 12 years and longer and underweights to bonds with durations from zero to four years.
 
An underweight to state-supported debt.
 
Credit-quality positioning, particularly an underweight to A‑rated bonds and an overweight to BBB‑rated bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year    5‑Year    10‑Year
       
Class I Shares at NAV
   4.33%    1.28%    2.53%
       
S&P Municipal Bond Index
   4.85%    1.62%    2.51%
       
S&P Municipal Bond New Jersey Index
   5.19%    2.01%    3.19%
       
Lipper New Jersey Municipal Debt Funds Classification Average
   4.30%    1.26%    2.35%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 390,874,486
Holdings Count | Holding 271
Advisory Fees Paid, Amount $ 1,781,405
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 390,874,486  
Total number of portfolio holdings
     271  
Portfolio turnover (%)
     15%  
Total management fees paid for the year
   $ 1,781,405  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective September 18, 2025, Kristen DeJong was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001543 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New York Municipal Bond Fund
Class Name Class I Shares
Trading Symbol NTNYX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen New York Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $56    0.55%
* Annualized for period less than one year.
Expenses Paid, Amount $ 56
Expense Ratio, Percent 0.55% [13]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New York Municipal Bond Fund returned 3.77% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New York Index, which returned 4.57%.
 
Top contributors to relative performance
 
Sector positioning, particularly an overweight to the transportation segment and an underweight to the tax‑supported segment.
 
An overweight to A‑rated bonds.
 
Top detractors from relative performance
 
Overweights to non‑rated bonds and bonds rated below-investment-grade.
 
Duration positioning.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class I Shares at NAV
     3.77      0.95      2.16
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Bond New York Index
     4.57      1.55      2.32
Lipper New York Municipal Debt Funds Classification Average
     3.56      1.02      2.07
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,014,941,677
Holdings Count | Holding 199
Advisory Fees Paid, Amount $ 4,609,613
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 1,014,941,677  
Total number of portfolio holdings
     199  
Portfolio turnover (%)
     14%  
Total management fees paid for the year
   $     4,609,613  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000137691 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New York Municipal Bond Fund
Class Name Class C Shares
Trading Symbol NAJPX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen New York Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
    Cost of a
$10,000 investment
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $157   1.55%
* Annualized for period less than one year.
Expenses Paid, Amount $ 157
Expense Ratio, Percent 1.55% [14]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New York Municipal Bond Fund returned 2.74% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New York Index, which returned 4.57%.
 
Top contributors to relative performance
 
Sector positioning, particularly an overweight to the transportation segment and an underweight to the tax‑supported segment.
 
An overweight to A‑rated bonds.
 
Top detractors from relative performance
 
Overweights to non‑rated bonds and bonds rated below-investment-grade.
 
Duration positioning.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class C Shares at NAV (excluding maximum sales charge)
     2.74      (0.06 )%       1.30
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Bond New York Index
     4.57      1.55      2.32
Lipper New York Municipal Debt Funds Classification Average
     3.56      1.02      2.07
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,014,941,677
Holdings Count | Holding 199
Advisory Fees Paid, Amount $ 4,609,613
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 1,014,941,677  
Total number of portfolio holdings
     199  
Portfolio turnover (%)
     14%  
Total management fees paid for the year
   $     4,609,613  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000001540 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen New York Municipal Bond Fund
Class Name Class A Shares
Trading Symbol NNYAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen New York Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
    Cost of a
$10,000 investment
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $76   0.75%
* Annualized for period less than one year.
Expenses Paid, Amount $ 76
Expense Ratio, Percent 0.75% [15]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen New York Municipal Bond Fund returned 3.57% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Bond New York Index, which returned 4.57%.
 
Top contributors to relative performance
 
Sector positioning, particularly an overweight to the transportation segment and an underweight to the tax‑supported segment.
 
An overweight to A‑rated bonds.
 
Top detractors from relative performance
 
Overweights to non‑rated bonds and bonds rated below-investment-grade.
 
Duration positioning.
 
An out‑of‑benchmark allocation to Puerto Rico sales‑tax bonds.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class A Shares at NAV (excluding maximum sales charge)
     3.57      0.75      1.95
Class A Shares at maximum sales charge (Offering Price)
     (0.78 )%       (0.11 )%       1.52
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Bond New York Index
     4.57      1.55      2.32
Lipper New York Municipal Debt Funds Classification Average
     3.56      1.02      2.07
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 1,014,941,677
Holdings Count | Holding 199
Advisory Fees Paid, Amount $ 4,609,613
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 1,014,941,677  
Total number of portfolio holdings
     199  
Portfolio turnover (%)
     14%  
Total management fees paid for the year
   $ 4,609,613  
Holdings [Text Block]
LOGO
LOGO
(1) The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Credit Ratings Selection [Text Block] The ratings disclosed are the highest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000023361 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California High Yield Municipal Bond Fund
Class Name Class A Shares
Trading Symbol NCHAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen California High Yield Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
    Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class A Shares
  $170    1.67%
* Annualized for period less than one year.
Expenses Paid, Amount $ 170
Expense Ratio, Percent 1.67% [16]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California High Yield Municipal Bond Fund returned 3.62% for Class A Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund performed in line with the S&P Municipal Yield Index, which returned 3.73%.
 
Top contributors to relative performance
 
Sector positioning, particularly underweights to the tobacco and industrial development revenue bond segments.
 
Security selection among non‑rated bonds.
 
Top detractors from relative performance
 
An overweight to California tax‑exempt bonds.
 
An underweight to the health care sector.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class A Shares at NAV (excluding maximum sales charge)
     3.62      (0.63 )%       2.08
Class A Shares at maximum sales charge (Offering Price)
     (0.70 )%       (1.49 )%       1.64
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Yield Index
     3.73      2.24      4.13
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 982,086,543
Holdings Count | Holding 483
Advisory Fees Paid, Amount $ 5,062,648
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 982,086,543  
Total number of portfolio holdings
     483  
Portfolio turnover (%)
     16%  
Total management fees paid for the year
   $   5,062,648  
Holdings [Text Block]
LOGO
LOGO
(1) Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
(2) The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Exposure Basis Explanation [Text Block] Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
Credit Ratings Selection [Text Block] The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective May 9, 2025, Steve Hlavin was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000137692 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California High Yield Municipal Bond Fund
Class Name Class C Shares
Trading Symbol NAWSX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen California High Yield Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class C Shares
  $250    2.47%
* Annualized for period less than one year.
Expenses Paid, Amount $ 250
Expense Ratio, Percent 2.47% [17]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California High Yield Municipal Bond Fund returned 2.82% for Class C Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund underperformed the S&P Municipal Yield Index, which returned 3.73%.
 
Top contributors to relative performance
 
Sector positioning, particularly underweights to the tobacco and industrial development revenue bond segments.
 
Security selection among non‑rated bonds.
 
Top detractors from relative performance
 
An overweight to California tax‑exempt bonds.
 
An underweight to the health care sector.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     1‑Year      5‑Year      10‑Year  
Class C Shares at NAV (excluding maximum sales charge)
     2.82      (1.42 )%       1.43
S&P Municipal Bond Index
     4.85      1.62      2.51
S&P Municipal Yield Index
     3.73      2.24      4.13
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 982,086,543
Holdings Count | Holding 483
Advisory Fees Paid, Amount $ 5,062,648
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 982,086,543  
Total number of portfolio holdings
     483  
Portfolio turnover (%)
     16%  
Total management fees paid for the year
   $   5,062,648  
Holdings [Text Block]
LOGO
LOGO
(1) Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
(2) The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Exposure Basis Explanation [Text Block] Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
Credit Ratings Selection [Text Block] The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective May 9, 2025, Steve Hlavin was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
C000023364 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen California High Yield Municipal Bond Fund
Class Name Class I Shares
Trading Symbol NCHRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen California High Yield Municipal Bond Fund for the period of March 1, 2025 to February 28, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/mutual‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last year? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Class I Shares
  $150    1.47%
* Annualized for period less than one year.
Expenses Paid, Amount $ 150
Expense Ratio, Percent 1.47% [18]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen California High Yield Municipal Bond Fund returned 3.86% for Class I Shares at net asset value (NAV) for the 12 months ended February 28, 2026. The Fund performed in line with the S&P Municipal Yield Index, which returned 3.73%.
 
Top contributors to relative performance
 
Sector positioning, particularly underweights to the tobacco and industrial development revenue bond segments.
 
Security selection among non‑rated bonds.
 
Top detractors from relative performance
 
An overweight to California tax‑exempt bonds.
 
An underweight to the health care sector.
Performance Past Does Not Indicate Future [Text] Performance data shown represents past performance and does not predict or guarantee future results.
Line Graph [Table Text Block]
LOGO
Average Annual Return [Table Text Block]
Average Annual Total Returns
     
     1‑Year      5‑Year      10‑Year  
       
Class I Shares at NAV
     3.86      (0.44 )%       2.29
       
S&P Municipal Bond Index
     4.85      1.62      2.51
       
S&P Municipal Yield Index
     3.73      2.24      4.13
       
Lipper California Municipal Debt Funds Classification Average
     3.84      1.03      2.13
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund Shares.
Updated Performance Information Location [Text Block] For most recent month‑end performance, go to https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or call (800) 257‑8787.
Net Assets $ 982,086,543
Holdings Count | Holding 483
Advisory Fees Paid, Amount $ 5,062,648
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of February 28, 2026)
Fund net assets
   $ 982,086,543  
Total number of portfolio holdings
     483  
Portfolio turnover (%)
     16%  
Total management fees paid for the year
   $   5,062,648  
Holdings [Text Block]
LOGO
LOGO
(1) Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
(2) The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Exposure Basis Explanation [Text Block] Total investments include the Fund’s assets attributable to financial leverage. For these purposes, financial leverage includes the Fund’s investments in the residual interest certificates (also called inverse floating rate securities) in tender option bond (TOB) trusts, including the portion of assets held by a TOB trust that has been effectively financed by the trust’s issuance of floating rate securities.
Credit Ratings Selection [Text Block] The ratings disclosed are the lowest rating given by one of the following national rating agencies: Standard & Poor’s (S&P), Moody’s Investors Service, Inc. (Moody’s) or Fitch, Inc (Fitch). This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Credit ratings are subject to change. AAA, AA, A, and BBB are investment grade ratings; BB, B, CCC, CC, C and D are below-investment grade ratings. Holdings designated N/R are not rated by these national ratings agencies.
Material Fund Change [Text Block]
How has the Fund changed?
   
Portfolio manager update: Effective May 9, 2025, Steve Hlavin was added as a portfolio manager of the Fund.
 
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Summary of Change Legend [Text Block]
For more complete information, you may review the Fund’s next prospectus, which is expected to be available by April 30, 2026 at https://www.nuveen.com/en‑us/mutual‑funds/prospectuses or upon request at (800) 257‑8787.
Updated Prospectus Phone Number (800) 257‑8787
Updated Prospectus Web Address https://www.nuveen.com/en‑us/mutual‑funds/prospectuses
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