v3.26.1
Shareholder Report
6 Months Ended
Apr. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Nushares ETF Trust
Entity Central Index Key 0001635073
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
C000175723 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Large‑Cap Growth ETF
Class Name Nuveen ESG Large‑Cap Growth ETF
Trading Symbol NULG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Large‑Cap Growth ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Large‑Cap Growth ETF
  $13    0.25%
* Annualized for period less than one year.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [1]
Net Assets $ 2,606,222,891
Holdings Count | Holding 65
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $2,606,222,891  
Total number of portfolio holdings
     65  
Portfolio turnover (%)
     32%  
Holdings [Text Block]
LOGO
C000175724 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Large‑Cap Value ETF
Class Name Nuveen ESG Large‑Cap Value ETF
Trading Symbol NULV
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Large‑Cap Value ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Large‑Cap Value ETF
  $13    0.25%
* Annualized for period less than one year.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [2]
Net Assets $ 2,077,006,627
Holdings Count | Holding 110
Investment Company Portfolio Turnover 21.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $2,077,006,627  
Total number of portfolio holdings
     110  
Portfolio turnover (%)
     21%  
Holdings [Text Block]
LOGO
C000175725 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Mid‑Cap Growth ETF
Class Name Nuveen ESG Mid‑Cap Growth ETF
Trading Symbol NUMG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Mid‑Cap Growth ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Mid‑Cap Growth ETF
  $14    0.30%
* Annualized for period less than one year.
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.30% [3]
Net Assets $ 353,595,337
Holdings Count | Holding 42
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $353,595,337  
Total number of portfolio holdings
     42  
Portfolio turnover (%)
     40%  
Holdings [Text Block]
LOGO
C000175726 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Mid‑Cap Value ETF
Class Name Nuveen ESG Mid‑Cap Value ETF
Trading Symbol NUMV
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Mid‑Cap Value ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Mid‑Cap Value ETF
  $16    0.30%
* Annualized for period less than one year.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30% [4]
Net Assets $ 431,141,522
Holdings Count | Holding 94
Investment Company Portfolio Turnover 25.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $431,141,522  
Total number of portfolio holdings
     94  
Portfolio turnover (%)
     25%  
Holdings [Text Block]
LOGO
C000175727 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Small‑Cap ETF
Class Name Nuveen ESG Small‑Cap ETF
Trading Symbol NUSC
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Small-Cap ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Small‑Cap ETF
  $16    0.30%
* Annualized for period less than one year.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30% [5]
Net Assets $ 1,286,460,384
Holdings Count | Holding 439
Investment Company Portfolio Turnover 25.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $1,286,460,384  
Total number of portfolio holdings
     439  
Portfolio turnover (%)
     25%  
Holdings [Text Block]
LOGO
C000183268 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG International Developed Markets Equity ETF
Class Name Nuveen ESG International Developed Markets Equity ETF
Trading Symbol NUDM
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG International Developed Markets Equity ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG International Developed Markets Equity ETF
  $14    0.27%
* Annualized for period less than one year.
Expenses Paid, Amount $ 14
Expense Ratio, Percent 0.27% [6]
Net Assets $ 666,871,244
Holdings Count | Holding 152
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $666,871,244  
Total number of portfolio holdings
     152  
Portfolio turnover (%)
     27%  
Holdings [Text Block]
LOGO
LOGO
C000183269 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Emerging Markets Equity ETF
Class Name Nuveen ESG Emerging Markets Equity ETF
Trading Symbol NUEM
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Emerging Markets Equity ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information athttps://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Emerging Markets Equity ETF
  $19    0.35%
* Annualized for period less than one year.
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.35% [7]
Net Assets $ 371,409,210
Holdings Count | Holding 175
Investment Company Portfolio Turnover 35.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $371,409,210  
Total number of portfolio holdings
     175  
Portfolio turnover (%)
     35%  
Holdings [Text Block]
 
 
LOGO
LOGO
C000206035 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Large‑Cap ETF
Class Name Nuveen ESG Large‑Cap ETF
Trading Symbol NULC
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Large‑Cap ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Large‑Cap ETF
  $10    0.20%
* Annualized for period less than one year.
Expenses Paid, Amount $ 10
Expense Ratio, Percent 0.20% [8]
Net Assets $ 59,497,141
Holdings Count | Holding 137
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $59,497,141  
Total number of portfolio holdings
     137  
Portfolio turnover (%)
     22%  
Holdings [Text Block]
LOGO
C000228786 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen ESG Dividend ETF
Class Name Nuveen ESG Dividend ETF
Trading Symbol NUDV
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen ESG Dividend ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen ESG Dividend ETF
  $13    0.25%
* Annualized for period less than one year.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [9]
Net Assets $ 45,275,787
Holdings Count | Holding 86
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $45,275,787  
Total number of portfolio holdings
     86  
Portfolio turnover (%)
     27%  
Holdings [Text Block]
LOGO
C000230537 [Member]  
Shareholder Report [Line Items]  
Fund Name Nuveen Growth Opportunities ETF
Class Name Nuveen Growth Opportunities ETF
Trading Symbol NUGO
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Nuveen Growth Opportunities ETF for the period of November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information at https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses. You can also request this information by contacting us at (800) 257‑8787.
Additional Information Phone Number (800) 257‑8787
Additional Information Website https://www.nuveen.com/en‑us/exchange‑traded‑funds/prospectuses
Expenses [Text Block]
What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment)
   
   
Cost of a 
$10,000 investment 
  Costs paid as a percentage of
$10,000 investment*
     
Nuveen Growth Opportunities ETF
  $28    0.55%
* Annualized for period less than one year.
Expenses Paid, Amount $ 28
Expense Ratio, Percent 0.55% [10]
Net Assets $ 2,849,284,534
Holdings Count | Holding 47
Investment Company Portfolio Turnover 23.00%
Additional Fund Statistics [Text Block]
Fund Statistics (as of April 30, 2026)
Fund net assets
     $2,849,284,534  
Total number of portfolio holdings
     47  
Portfolio turnover (%)
     23%  
Holdings [Text Block]
LOGO
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