Google's mobile payments service, Android Pay, is making its debut.<br />The service, which was initially announced in May, lets people with mobile phones running on Google's Android mobile operating system upload credit and debit card information to a "mobile wallet."<br />Starting Thursday, shoppers will be able to use their phone to pay at more than one million retail stores in the U.S. that have point-of-sale registers equipped with near field communication technology, known as NFC.<br />Google said Android Pay will support credit and debit cards from the four major payment networks including Visa, MasterCard, American Express, and Discover.<br />Early partners for Android Pay include Whole Foods, Macy's, and McDonalds.