Apple ID Change

Note the restrictions in the article.

Apple ID Name Change.        

 What to do after you change your Apple ID or password - Apple Support    I suggest doing this before you change your Apple ID or password.

rennieh0 Said:

"Apple ID Change: How do I change my Apple ID while keeping everything I need on my phone? Someone has been trying to login with my Apple ID for about a week now and I just like to change my Apple ID so I will not get hacked."

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Modify your Credentials:

Simply, open a new eMail account(gmail, Outlook, AOL, etc), and then assign that as your Apple ID.

• Modify: your login credentials (Using Both a New eMail and a New Password for each and all sites)
• Associate: a different method of payment to your account
• Enable: Two-Factor Authentication for Apple ID and for all other accounts that have such an applicable option