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 FY2019 and requested by the Trump Administration for FY2020, as well as the funding levels proposed by the House and Senate Appropriations Committees in their reported legislation for FY2020 and ultimately enacted in P.L. [Public Law] 116-93, Division D. In the process, it also includes information on DHS funding from two enacted FY2019 supplemental appropriations measures: P.L. 116-20, a disaster relief supplemental; and P.L. 116-26, a supplemental appropriations bill funding humanitarian and security operations at the U.S.-Mexico border. The report provides a look at the resources available to DHS components that are described in appropriations committee reports, and examines 'net discretionary annual appropriations' for DHS--a perspective on the net impact of legislation funding DHS on congressionally tracked budget totals."
CRS Report for Congress, R45972
Congressional Research Service: https://crsreports.congress.gov/