You can view and manage all your billing details anytime from the Usage and billing page.
Step-by-step
Click My Account in the bottom-left corner.
Click Usage and billing, then on the Usage this period card, click the … menu and choose Payment method. On an older (legacy) plan, select Manage billing in the Subscription section instead.
On the secure billing page that opens, click the pencil icon next to your current payment method to edit it or add a new one.
Once updated, your new payment method will be used for all future charges. You can also store multiple payment methods and select which one should be your default.
