Does my divorce decree protect me from creditors if my ex files for bankruptcy?

No. A divorce decree is an agreement or order between the two divorcing parties. In regard to debts, it spells out who is ultimately responsible for each debt. However, if both parties are responsible before divorce, the creditors can still go after either or both parties. The divorce decree would allow a party who had to pay a debt for which the other was responsible the right to recover payment.
• So, if a divorce decree provided that H must pay Y, where both spouses are indebted to y, Y can still sue W and presumably win. W would then have the right to sue H to recover what she paid to Y.
• And, consider that in a community property state such as Washington, most debts incurred by either spouse during marriage while living together make both spouses liable.