Investments Purchased with Collateral from Securities Lending [Member] C000001703 [Member] Nuveen Multi Cap Value Fund - Class I C000001702 [Member] Nuveen Multi Cap Value Fund - Class C C000001700 [Member] Nuveen Multi Cap Value Fund - Class A Common Stock [Member] Repurchase Agreements [Member] C000001704 [Member] Nuveen Small Cap Value Opportunities Fund - Class A C000001706 [Member] Nuveen Small Cap Value Opportunities Fund - Class C C000123977 [Member] Class R6 C000001707 [Member] Nuveen Small Cap Value Opportunities Fund - Class I C000039985 [Member] Class I C000039984 [Member] Class C C000039982 [Member] Class A C000039986 [Member] C000039988 [Member] C000171397 [Member] C000039989 [Member] Other [Member] Convertible Preferred Securities [Member] Structured Notes [Member] C000079621 [Member] C000079619 [Member] C000079618 [Member] UNITED STATES UNITED KINGDOM SWITZERLAND NETHERLANDS JAPAN HONG KONG GERMANY FRANCE FINLAND AUSTRALIA Investment Type [Axis] Net Assets Investment Company Portfolio Turnover No Trading Symbol Flag