Literal, but by that, I mean that the author intended to tell literal truth. It doesn't prevent alternate accounts of the same events to either focus on different details or even show events in a different order or scale. Let us not forget that the scriptures are not purely divine, they are also human, like Christ. The Bible isn't a Quran.
Also, some of the events portrayed in the scriptures are either artistic representations of actual events, with a theological agenda (such as Job and Jonah - these people existed, and the stories about them have true historical basis, but they are presented to us in an artistic manner, with the book of Job showing his story and suffering as a poem, and the book of Jonah showing his prophetic ministry as a comical satire), and some of the texts must be read with more in mind than what the text immediately presents (such as the Song of Songs), and some of the texts are outright said to be visions or dreams (like much of Ezekiel and Revelation).
Finally, things that are of a heavenly and spiritual nature may be described in ways that don't perfectly represent reality, because the true reality is beyond what we can put into words in our fallen and sinful nature. Such is true of the world as it is described before the Fall, and the world as it is described after the Last Judgment, as well as the realm of the dead and the realm of angels.
And with all this being said, the exact historicity is honestly secondary. Not unimportant, but secondary. The primary interpretation is the following: what does the text tell us about Jesus Christ? How is the text fulfilled and completed in the 4 gospels? All the scriptures other than Matthew, Mark, Luke and John pretty much serve both as context and commentary (and the New Testament overall lifts the "veil" that the Jews and unbelievers have when they read the Old Testament alone). And furthermore, Christianity does not end at the scriptures - how do the scriptures, altogether, tell us about and enlighten our experience of Jesus Christ here and now? This is why it is important to look at the writings of the Church Fathers, to see how our predecessors tied the divine revelations to their own experience within the Church.