Question
Do non-Jews go to heaven when they die?
Answer
Non-Jews who aren’t sinners (i.e., who obey the Noahide laws) go to heaven when they die (Talmud, Sanhedrin 102b; Maimonides, Repentance 3:5). When the Mishnah (Sanhedrin 11:1) lists major sinners who have no share in the World to Come, it includes a non-Jew, Bilaam. This implies that ordinary sinners, whether Jewish or not, are subject to the same rules: temporary punishment followed by permanent reward.
Rabbi Azriel Schreiber