A molded body for outdoor installation, which is obtained by molding a polycarbonate-based resin composition comprising a blend of: 100 parts by mass of a polycarbonate-based resin comprising 30 mass% to 100 mass% of a polycarbonate-polyorganosiloxane copolymer (A-1) having a polycarbonate block comprising, in a main chain thereof, a repeating unit represented by the general formula, and a polyorganosiloxane block containing a siloxane repeating structure represented by the general formula and having an average number n of repetitions of from 70 to 500, and 70 mass% to 0 mass% of an aromatic polycarbonate resin (A-2) except the polycarbonate-polyorganosiloxane copolymer (A-1); and 0.001 part by mass to 1 part by mass of a UV absorber, wherein the UV absorber is at least one selected from a benzophenone-based UV absorber and a benzotriazole-based UV absorber, wherein a content x of the polyorganosiloxane block in the polycarbonate-based resin is from 2.0 mass% to 15.0 mass%, and a product nx of the average number n of repetitions and the content x of the polyorganosiloxane block is 400 or more: wherein: R 1 and R 2 each independently represent a halogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, a fluorenediyl group, an arylalkylene group having 7 to 15 carbon atoms, an arylalkylidene group having 7 to 15 carbon atoms, -S-, -SO-, -SO 2 -, -O-, or -CO-, and a and b each independently represent an integer of from 0 to 4; and R 3 and R 4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and the average number n of repetitions represents a total number of siloxane repeating units in the polyorganosiloxane block. 100 parts by mass of a polycarbonate-based resin comprising 30 mass% to 100 mass% of a polycarbonate-polyorganosiloxane copolymer (A-1) having a polycarbonate block comprising, in a main chain thereof, a repeating unit represented by the general formula, and a polyorganosiloxane block containing a siloxane repeating structure represented by the general formula and having an average number n of repetitions of from 70 to 500, and 70 mass% to 0 mass% of an aromatic polycarbonate resin (A-2) except the polycarbonate-polyorganosiloxane copolymer (A-1); and 30 mass% to 100 mass% of a polycarbonate-polyorganosiloxane copolymer (A-1) having a polycarbonate block comprising, in a main chain thereof, a repeating unit represented by the general formula, and a polyorganosiloxane block containing a siloxane repeating structure represented by the general formula and having an average number n of repetitions of from 70 to 500, and 70 mass% to 0 mass% of an aromatic polycarbonate resin (A-2) except the polycarbonate-polyorganosiloxane copolymer (A-1); and 0.001 part by mass to 1 part by mass of a UV absorber, wherein the UV absorber is at least one selected from a benzophenone-based UV absorber and a benzotriazole-based UV absorber, wherein a content x of the polyorganosiloxane block in the polycarbonate-based resin is from 2.0 mass% to 15.0 mass%, and a product nx of the average number n of repetitions and the content x of the polyorganosiloxane block is 400 or more: wherein: R 1 and R 2 each independently represent a halogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, a fluorenediyl group, an arylalkylene group having 7 to 15 carbon atoms, an arylalkylidene group having 7 to 15 carbon atoms, -S-, -SO-, -SO 2 -, -O-, or -CO-, and a and b each independently represent an integer of from 0 to 4; and R 3 and R 4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and the average number n of repetitions represents a total number of siloxane repeating units in the polyorganosiloxane block. R 1 and R 2 each independently represent a halogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, a fluorenediyl group, an arylalkylene group having 7 to 15 carbon atoms, an arylalkylidene group having 7 to 15 carbon atoms, -S-, -SO-, -SO 2 -, -O-, or -CO-, and a and b each independently represent an integer of from 0 to 4; and R 3 and R 4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or an aryl group having 6 to 12 carbon atoms, and the average number n of repetitions represents a total number of siloxane repeating units in the polyorganosiloxane block.