Does Microsoft Word come free?

I'm going to purchase a new Dell Inspiron R laptop, and I wanted to know if it came with Word. I know there are a few word bundles available at the official customizable Dell check out, but I don't want to spend hundreds of dollars on Word if it comes with my laptop. And if Word does come omy laptop, then how long will it be there....like would it be a 30 day trial or permanent on my computer? Thanks in advance!