The FRED series Household Sector: Liabilities: Household Credit Market Debt Outstanding is now known as Households and Nonprofit Organizations; Credit Market Instruments; Liability.
The source series id is LA154104005.Q.
This series appears in Table D.3. 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; Liability, Level [CMDEBT], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CMDEBT, June 24, 2018.