Nuveen U.S. Infrastructure ETF S000105637 [Member] C000276415 [Member] Currency Risk [Member] Cybersecurity Risk [Member] Derivatives Risks [Member] Emerging Markets Risk [Member] Energy Sector Risk [Member] Equity Security Risk [Member] Foreign Investment Risk [Member] Infrastructure Sector Risk [Member] Market Risks [Member] Market Trading Risks [Member] Master Limited Partnership Risk [Member] Preferred Security Risk [Member] Real Estate Investment Risk [Member] REITs Risk [Member] Risk of Investing in the U S [Member] Service Provider Operational Risk [Member] Small and Mid Cap Company Risk [Member] Style Risk [Member] Utility Sector Risk [Member] Active Management Risk [Member]