authorized to be appropriated, and there is hereby appropriated, out of any money in the Treasury not otherwise appropriated, $10,000,000,000, to remain available until expended, for the offices and agencies described in subsection (b) of this section to carry out section 170202 and section 170203 of this title and to make transfers authorized under subsection (c) of this section. (b) Offices and agencies The offices and agencies described in this subsection are— (1) the Office of the Sergeant at Arms and Doorkeeper of the Senate