From the Document: "The homeland security appropriations bill includes all annual appropriations for the Department of Homeland Security (DHS), providing resources to every departmental component. This report reviews the budget authority provided to DHS for FY2020 and requested by the Donald J. Trump administration for FY2021, as well as the congressional response. It also includes component-level information on FY2020 supplemental funding for DHS provided in the P.L. 116-136, the CARES [Coronavirus Aid, Relief, and Economic Security] Act. The report provides a look at the resources available to DHS components that are described in appropriations committee documentation, and examines 'net discretionary annual appropriations' for DHS--a perspective on the net impact of legislation that funds DHS on congressionally-tracked budget totals."
CRS Report for Congress, R46630
Congressional Research Service: https://crsreports.congress.gov/