Did you receive anything from Disney with regard to your airlines tix? A confirmation or e-ticket number? More than likely, you have ticketless travel or e-tickets. This means you won't actually get anything in paper form. You will bring your ID and any confirmation you have from Disney to the airport and check-in with just the ID. If there was any question, then you would have to produce the confirmation number and/or receipt.
To double check on all this, I would immediately call Disney and verify all the information to be sure you know what to expect. In addition, I would call twice to be sure you get the same information more than once. We all know how CRO can be and bless them, but sometimes CMs make mistakes and I wouldn't want you to count on the bad information that one CM gives you.