Let $A$ be a commutative ring with an identity. Suppose that every non-empty set of ideals of $A$ has a maximal element. Let $A[[x]]$ be the formal power series over $A$. Can we prove that every non-empty set of ideals of $A[[x]]$ has a maximal element without Axiom of Choice? **Remark** [The same question][1] was asked in MSE. [1]:http://math.stackexchange.com/questions/172163/noetherian-condition-on-the-ring-of-formal-power-series-without-axiom-of-choice