Cook made the comments during Apple's Q4 FY19 earnings call:
I'm very pleased to announce today that later this year we're adding another great feature to Apple Card. Customers will be able to purchase their new iPhone and pay for it over 24 months with zero interest. And they will continue to enjoy all the benefits of Apple Card, including 3% cashback on the total cost of their new iPhone with absolutely no fees and the ability to simply manage their payments right in the Apple Wallet app on iPhone. We think these features appeal broadly to all iPhone customers, and we believe this has been the most successful launch of a credit card in the United States ever.
You can listen to Apple's full earnings call here or read it here.
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