Change Id for Itunes and App Store

Installed my new XR yesterday, and Apple-Id is installed and ok, but when I look at the Apple-id for iTunes and App Store it is the wrong Apple-id.

The reason why it´s the wrong Apple-id there, is because my last iphone (6) used to belong to my husband and when he gave it to me, I "inherited" his id- and I haven´t been able to change the Apple-id for iTunes and AppStore (so everytime I´m installing a new app, I have to write my husbands password). So my question is - how do I change the apple-id on my new Iphone XR for iTunes and AppStore?