How do I reverse iCloud backup?
How do I reverse the backup of iCloud in my music library? I do not want the play lists of everyone else signed into my Apple ID
iPhone 6s, iOS 11.1
I don't know about reversing an iCloud backup, but you can certainly delete it -- iCloud: Remove an iOS device backup from iCloud. Also, most importantly, you should note that Apple ID's aren't meant to be shared with others as you've mentioned in your case.