NEW YORK--(BUSINESS WIRE)--Fitch Ratings affirms the senior and subordinate notes at 'AAAsf' and 'AAsf', respectively, issued by Navient Student Loan Trusts 2014-2 through 2014-7. For a detailed list, see below. The Rating Outlook remains Stable on all notes. KEY RATING DRIVERS High Collateral Quality: The trusts' collateral consists of 100% of Federal Family Education Loan Program (FFELP) loans, of which, approximately 15% are rehabilitated loans. The credit quality of the trusts' collateral i