What is the Dior font called?

Excuse me, I was just perusing through some branding materials and I noticed that Dior, the renowned fashion house, has a distinct and elegant typography that they use consistently across their branding. It really adds to their overall aesthetic and I'm quite intrigued. Could you perhaps enlighten me on what the name of this particular font is? I've been trying to find out for a while now and I'm at a bit of a loss. Any information you have would be greatly appreciated.