X0101 24F-2NT LIVE 0000820892 XXXXXXXX N-1A NUVEEN INVESTMENT FUNDS INC 333 West Wacker Drive Chicago IL X1 60606 Nuveen Global Infrastructure Fund S000020012 C C000070757 R6 C000171406 I C000056119 A C000056118 811-05309 033-16905 12/31/2023 false false S000020012 86013459.3 147094877.73 172278359 319373236.73 0 (233359777.43) 0.0001476 0 0 0 0 0 Jon Scott Meissner MD Tax & Financial Reporting, Fund Administration 03/26/2024 NUVEEN INVESTMENT FUNDS INC 333 West Wacker Drive Chicago IL X1 60606 Nuveen Real Asset Income Fund S000033768 R6 C000171407 C C000104366 I C000104368 A C000104365 811-05309 033-16905 12/31/2023 false false S000033768 239415551.95 381185908.48 617517883 998703791.48 0 (759288239.53) 0.0001476 0 0 0 0 0 Jon Scott Meissner MD Tax & Financial Reporting, Fund Administration 03/26/2024 NUVEEN INVESTMENT FUNDS INC 333 West Wacker Drive Chicago IL X1 60606 Nuveen Real Estate Securities Fund S000005563 R6 C000126484 C C000015149 A C000015147 I C000015151 811-05309 033-16905 12/31/2023 false false S000005563 255767654.55 380983554 3109046074 3490029628 0 (3234261973.45) 0.0001476 0 0 0 0 0 Jon Scott Meissner MD Tax & Financial Reporting, Fund Administration 03/26/2024