Action Details
Requirements and how-to articles for Apple's action:

An Apple ID is required in order to join the Apple Developer Program.

You need this to get it done:

Email Address
The email address you wish to be associated with your account (this is where your verification email will be sent.) The email address you provide will be your new Apple ID.
Phone Number
A phone number which can be used to verify your identity via phone call or SMS (you can choose which to use.)
Date of Birth
Your date of birth.
Your first and last name.
The country/region in which you are based.
Verification Code
The verification code which was sent to either your phone number or email address.
Security Questions
Pick three security questions and enter your answers for them (in case you ever get locked out of your account.)
Credit Card/Billing Information
Your credit card and billing information (you will not be charged until you make a purchase, and you can change or remove your payment details later.)
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How-To Articles
A list of useful links for you:

Apple Support - How to create a new Apple ID
Guide to creating an Apple ID.
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