v3.26.1
Shareholder Report
12 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Nuveen Investment Trust II
Entity Central Index Key 0001041673
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
C000001723 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen International Value Fund
Class Name Class I Shares
Trading Symbol NGRRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class I Shares of the Nuveen International Value Fund for the period of July 1, 2025 to June 30, 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
  $80     0.73%
  *  
Annualized for period less than one year.
 
Expenses Paid, Amount $ 80
Expense Ratio, Percent 0.73% [1]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen International Value Fund returned 18.80% for Class I Shares at net asset value (NAV) for the 12 months ended June 30, 2026. The Fund underperformed the MSCI EAFE Index (Net), which returned 20.23%.
 
Top contributors to relative performance
 
Security selection and an overweight allocation to the financials sector, led by overweights to ING Groep N.V. and Societe Generale S.A., as well as an out-of-benchmark position in UBS Group AG.
 
Out-of-benchmark position in Taiwan Semiconductor Manufacturing Co., Ltd.
 
Underweight allocation to the communication services sector, including lack of exposure to Nintendo Co. Ltd and Spotify Technology SA.
 
Top detractors from relative performance
 
Security selection and an underweight allocation to the information technology sector, including lack of exposure to ASML Holding NV and an overweight to Capgemini SE.
 
Security selection in the industrials sector, including overweights to Alstom SA, Thales SA and Wolters Kluwer N.V.
 
Security selection in the energy sector, including an out-of-benchmark position in Technip Energies NV.
 
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
       18.80        10.47        9.11
       
MSCI EAFE® Index (Net)
       20.23        9.05        9.66
       
Lipper International Multi-Cap Value Funds Classification Average
       23.72        10.60        9.54
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 $ 1,220,935,747
Holdings Count | Holding 55
Advisory Fees Paid, Amount $ 6,387,785
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of June 30, 2026)
Fund net assets
     $1,220,935,747  
Total number of portfolio holdings
     55  
Portfolio turnover (%)
     38%  
Total management fees paid for the year
     $  6,387,785  
Holdings [Text Block]
LOGO
   LOGO
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 October 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 October 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
C000001722 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen International Value Fund
Class Name Class C Shares
Trading Symbol NCIGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class C Shares of the Nuveen International Value Fund for the period of July 1, 2025 to June 30, 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
  $188     1.73%
  *  
Annualized for period less than one year.
 
Expenses Paid, Amount $ 188
Expense Ratio, Percent 1.73% [2]
Factors Affecting Performance [Text Block]
 
How did the Fund perform last year? What affected the Fund’s performance?
 
Performance Highlights
 
The Nuveen International Value Fund returned 17.64% for Class C Shares at net asset value (NAV) for the 12 months ended June 30, 2026. The Fund underperformed the MSCI EAFE Index (Net), which returned 20.23%.
 
Top contributors to relative performance
 
Security selection and an overweight allocation to the financials sector, led by overweights to ING Groep N.V. and Societe Generale S.A., as well as an out-of-benchmark position in UBS Group AG.
 
Out-of-benchmark position in Taiwan Semiconductor Manufacturing Co., Ltd.
 
Underweight allocation to the communication services sector, including lack of exposure to Nintendo Co. Ltd and Spotify Technology SA.
 
Top detractors from relative performance
 
Security selection and an underweight allocation to the information technology sector, including lack of exposure to ASML Holding NV and an overweight to Capgemini SE.
 
Security selection in the industrials sector, including overweights to Alstom SA, Thales SA and Wolters Kluwer N.V.
 
Security selection in the energy sector, including an out-of-benchmark position in Technip Energies NV.
 
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)
       17.64        9.37        8.19
       
MSCI EAFE® Index (Net)
       20.23        9.05        9.66
       
Lipper International Multi-Cap Value Funds Classification Average
       23.72        10.60        9.54
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 $ 1,220,935,747
Holdings Count | Holding 55
Advisory Fees Paid, Amount $ 6,387,785
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of June 30, 2026)
Fund net assets
     $1,220,935,747  
Total number of portfolio holdings
     55  
Portfolio turnover (%)
     38%  
Total management fees paid for the year
     $  6,387,785  
Holdings [Text Block]
LOGO
   LOGO
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 October 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 October 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
C000001720 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen International Value Fund
Class Name Class A Shares
Trading Symbol NAIGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about the Class A Shares of the Nuveen International Value Fund for the period of July 1, 2025 to June 30, 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
  $107     0.98%
  *  
Annualized for period less than one year.
 
Expenses Paid, Amount $ 107
Expense Ratio, Percent 0.98% [3]
Factors Affecting Performance [Text Block]
How did the Fund perform last year? What affected the Fund’s performance?
Performance Highlights
 
The Nuveen International Value Fund returned 18.54% for Class A Shares at net asset value (NAV) for the 12 months ended June 30, 2026. The Fund underperformed the MSCI EAFE Index (Net), which returned 20.23%.
 
Top contributors to relative performance
 
Security selection and an overweight allocation to the financials sector, led by overweights to ING Groep N.V. and Societe Generale S.A., as well as an out-of-benchmark position in UBS Group AG.
 
Out-of-benchmark position in Taiwan Semiconductor Manufacturing Co., Ltd.
 
Underweight allocation to the communication services sector, including lack of exposure to Nintendo Co. Ltd and Spotify Technology SA.
 
Top detractors from relative performance
 
Security selection and an underweight allocation to the information technology sector, including lack of exposure to ASML Holding NV and an overweight to Capgemini SE.
 
Security selection in the industrials sector, including overweights to Alstom SA, Thales SA and Wolters Kluwer N.V.
 
Security selection in the energy sector, including an out-of-benchmark position in Technip Energies NV.
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)
       18.54        10.20        8.84
       
Class A Shares at maximum sales charge (Offering Price)
       11.73        8.90        8.20
       
MSCI EAFE® Index (Net)
       20.23        9.05        9.66
       
Lipper International Multi-Cap Value Funds Classification Average
       23.72        10.60        9.54
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 $ 1,220,935,747
Holdings Count | Holding 55
Advisory Fees Paid, Amount $ 6,387,785
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of June 30, 2026)
Fund net assets
     $1,220,935,747  
Total number of portfolio holdings
     55  
Portfolio turnover (%)
     38%  
Total management fees paid for the year
     $    6,387,785  
Holdings [Text Block]
LOGO
   LOGO
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 October 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 October 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
[1] Annualized for period less than one year.
[2] Annualized for period less than one year.
[3] Annualized for period less than one year.