A composition comprising: a first polycarbonate comprising a poly(siloxane-carbonate) derived from at least one dihydroxy aromatic containing polycarbonate unit, and at least one polysiloxane bisphenol of formula, formula, or a combination thereof wherein R is each independently a C 1 -C 30 hydrocarbon group, R 2 is each independently a C 7 -C 30 hydrocarbon group, Ar is a C 6 -C 30 aromatic group and E has an average value of 5 to 200; a second polycarbonate different from the first polycarbonate, the second polycarbonate comprising brominated carbonate units derived from 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol and carbonate units derived from at least one dihydroxy aromatic compound that is not 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol; and optionally, a third polycarbonate different from the first and second polycarbonate; wherein the wt% of the first polycarbonate, second polycarbonate, and optional third polycarbonate sum to 100 wt%, the first polycarbonate is present in an amount effective to provide the siloxane units in an amount of at least 0.3 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate, and the second polycarbonate is present in an amount effective to provide the bromine of the second polycarbonate in an amount of at least 7.8 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate; and further wherein an article molded from the composition has an OSU integrated 2 minute heat release test value of less than 65 kW-min/m 2 and a peak heat release rate of less than 65 kW/m 2 as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d), and an E662 smoke test Dmax value of less than 200 when measured at a thickness of 1.6 mm. a first polycarbonate comprising a poly(siloxane-carbonate) derived from at least one dihydroxy aromatic containing polycarbonate unit, and at least one polysiloxane bisphenol of formula, formula, or a combination thereof wherein R is each independently a C 1 -C 30 hydrocarbon group, R 2 is each independently a C 7 -C 30 hydrocarbon group, Ar is a C 6 -C 30 aromatic group and E has an average value of 5 to 200; R is each independently a C 1 -C 30 hydrocarbon group, R 2 is each independently a C 7 -C 30 hydrocarbon group, Ar is a C 6 -C 30 aromatic group and E has an average value of 5 to 200; a second polycarbonate different from the first polycarbonate, the second polycarbonate comprising brominated carbonate units derived from 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol and carbonate units derived from at least one dihydroxy aromatic compound that is not 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol; and brominated carbonate units derived from 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol and carbonate units derived from at least one dihydroxy aromatic compound that is not 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol; and optionally, a third polycarbonate different from the first and second polycarbonate; wherein the wt% of the first polycarbonate, second polycarbonate, and optional third polycarbonate sum to 100 wt%, the first polycarbonate is present in an amount effective to provide the siloxane units in an amount of at least 0.3 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate, and the second polycarbonate is present in an amount effective to provide the bromine of the second polycarbonate in an amount of at least 7.8 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate; and further wherein an article molded from the composition has an OSU integrated 2 minute heat release test value of less than 65 kW-min/m 2 and a peak heat release rate of less than 65 kW/m 2 as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d), and an E662 smoke test Dmax value of less than 200 when measured at a thickness of 1.6 mm. the wt% of the first polycarbonate, second polycarbonate, and optional third polycarbonate sum to 100 wt%, the first polycarbonate is present in an amount effective to provide the siloxane units in an amount of at least 0.3 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate, and the second polycarbonate is present in an amount effective to provide the bromine of the second polycarbonate in an amount of at least 7.8 wt%, based on the sum of the wt% of the first, second, and optional third polycarbonate; and further wherein an article molded from the composition has an OSU integrated 2 minute heat release test value of less than 65 kW-min/m 2 and a peak heat release rate of less than 65 kW/m 2 as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d), and an E662 smoke test Dmax value of less than 200 when measured at a thickness of 1.6 mm.