You can print or download invoices for your Creative Cloud purchases.
When you sign in to your Adobe account, you see all payment details grouped by a particular order date. The order date reflects the date on which you made your first payment for the subscription. All the subsequent payments for the same subscription are grouped under the same order. You can expand the order date and see all payments listed by the billing dates. For a particular billing date, you have the option to print an invoice.
For detailed step-by-step instructions, see http://helpx.adobe.com/x-productkb/policy-pricing/print-creative-cloud-receipt.html.
To manage all aspects of your Creative Cloud membership or subscription, see Manage your membership and payments | Creative Cloud.