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| Supplement to Prospectus [Text Block] | rr_SupplementToProspectusTextBlock | IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT STRATEGY AND INVESTMENT POLICY NUVEEN ESG LARGE‑CAP GROWTH ETF SUPPLEMENT DATED APRIL 30, 2025 TO THE PROSPECTUS DATED FEBRUARY 28, 2025 The Board of Trustees of Nushares ETF Trust has approved a change to the Nuveen ESG Large‑Cap Growth ETF’s (the “Fund”) diversification policy under the Investment Company Act of 1940, as amended (the “1940 Act”). Under the revised policy, the Fund will continue to track its benchmark index even if the Fund becomes non‑diversified under the 1940 Act as a result of a change in the relative market capitalization or index weighting of one or more constituents of the index. Non‑diversified status means that the Fund can invest a greater percentage of its assets in the securities of a single issuer than a diversified fund. Shareholder approval will not be sought if the Fund crosses from diversified to non‑diversified status under such circumstances. ***
The Fund is classified as a diversified investment company, as defined under the Investment Company Act of 1940, as amended (the “1940 Act”). However, the Fund tracks the investment results of the Index and may become non‑diversified under the 1940 Act without the approval of Fund shareholders solely as a result of a change in relative market capitalization or index weighting of one or more Index constituents.
Non‑Diversification Risk—While the Fund is considered to be a diversified investment company under the 1940 Act, the Fund tracks the investment results of the Index and may become non‑diversified under the 1940 Act, without Fund shareholder approval, solely as a result of a change in relative market capitalization or index weighting of one or more Index constituents. A non‑diversified fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, business, political or regulatory occurrence affecting an issuer than a diversified fund. Poor performance by any one of these issuers would adversely affect a non‑diversified fund to a greater extent than a more broadly diversified fund.
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| Nuveen ESG Large-Cap Growth ETF | ||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||
| Supplement to Prospectus [Text Block] | rr_SupplementToProspectusTextBlock | IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT STRATEGY AND INVESTMENT POLICY NUVEEN ESG LARGE‑CAP GROWTH ETF SUPPLEMENT DATED APRIL 30, 2025 TO THE PROSPECTUS DATED FEBRUARY 28, 2025 The Board of Trustees of Nushares ETF Trust has approved a change to the Nuveen ESG Large‑Cap Growth ETF’s (the “Fund”) diversification policy under the Investment Company Act of 1940, as amended (the “1940 Act”). Under the revised policy, the Fund will continue to track its benchmark index even if the Fund becomes non‑diversified under the 1940 Act as a result of a change in the relative market capitalization or index weighting of one or more constituents of the index. Non‑diversified status means that the Fund can invest a greater percentage of its assets in the securities of a single issuer than a diversified fund. Shareholder approval will not be sought if the Fund crosses from diversified to non‑diversified status under such circumstances. ***
The Fund is classified as a diversified investment company, as defined under the Investment Company Act of 1940, as amended (the “1940 Act”). However, the Fund tracks the investment results of the Index and may become non‑diversified under the 1940 Act without the approval of Fund shareholders solely as a result of a change in relative market capitalization or index weighting of one or more Index constituents.
Non‑Diversification Risk—While the Fund is considered to be a diversified investment company under the 1940 Act, the Fund tracks the investment results of the Index and may become non‑diversified under the 1940 Act, without Fund shareholder approval, solely as a result of a change in relative market capitalization or index weighting of one or more Index constituents. A non‑diversified fund may invest a larger portion of its assets in the securities of a limited number of issuers and may be more sensitive to any single economic, business, political or regulatory occurrence affecting an issuer than a diversified fund. Poor performance by any one of these issuers would adversely affect a non‑diversified fund to a greater extent than a more broadly diversified fund.
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