The FRED series Total Credit Market Debt Owed by Domestic Financial Sectors - Credit Unions is now known as Credit Unions; FHLB Advances; Liability.
The source series id is FL473169333.Q.
This series appears in Table L.1. 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), Credit Unions; FHLB Advances; Liability, Level [CUTCMDODFS], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CUTCMDODFS, June 20, 2018.