The FRED series Total Credit Market Assets Held by Domestic Financial Sectors - Savings Institutions is now known as Savings Institutions; Credit Market Instruments; Asset.
The source series id is FL444004005.Q.
This series previously appeared in Table L.1. The series no longer updates. However, the Board of Governors will no longer feature this series in the Z.1 Flow of Funds release. For further assistance see the information provided in the guide to the Financial Accounts at http://www.federalreserve.gov/apps/fof/.
Board of Governors of the Federal Reserve System (US), Savings Institutions; Credit Market Instruments; Asset, Level (DISCONTINUED) [SITCMAHDFS], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/SITCMAHDFS, February 19, 2019.