v3.26.1
Document and Entity Information
May 26, 2026
Document And Entity Information [Line Items]  
Entity Registrant Name NAVIENT CORP
Amendment Flag false
Entity Central Index Key 0001593538
Document Type 8-K
Document Period End Date May 26, 2026
Entity Incorporation State Country Code DE
Entity File Number 001-36228
Entity Tax Identification Number 46-4054283
Entity Address, Address Line One 13865 Sunrise Valley Drive
Entity Address, City or Town Herndon
Entity Address, State or Province VA
Entity Address, Postal Zip Code 20171
City Area Code (302)
Local Phone Number 283-8000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common stock, par value $.01 per share
Trading Symbol NAVI
Security Exchange Name NASDAQ
Senior Notes [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 6% Senior Notes due December 15, 2043
Trading Symbol JSM
Security Exchange Name NASDAQ
Preferred Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Preferred Stock Purchase Rights
Security Exchange Name NASDAQ