The FRED series Total Credit Market Assets Held by Domestic Nonfinancial Sectors - Household is now known as Households and Nonprofit Organizations; Credit Market Instruments; Asset.
The source series id is FL154004005.Q.
The series appears in Table B.100. For further information see the assistance provided in the guide to the Financial Accounts at http://www.federalreserve.gov/apps/fof/.
Board of Governors of the Federal Reserve System (US), Households and Nonprofit Organizations; Credit Market Instruments; Asset, Level (DISCONTINUED) [HSTCMAHDNS], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/HSTCMAHDNS, July 22, 2018.