Unlinking iPhones
We have two iPhones - and they are linked. I realize this is because they are both under the same Apple ID and we need to recreate a second one. However, I did have the settings adjusted to where we wouldn't get each others texts/calls etc. However, something in the phone changed and it's happening again.
So - my question is - if I create a new Apple ID - what happens to the data that is already on the phone and backed up to the existing iCloud account?
I want to make sure that we're not going to lose anything. I know there is a setting that says to "deregister" the phone - but if I do that - deregister from what? I want to make sure that I'm not turning off the phone from our cell service.
iPhone 7, iOS 12