Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Investments
Held-to-maturity	$ 16	$ 19
Other	295	192
Total investments	311	211
Cash and cash equivalents	1,775	1,233
Restricted cash and cash equivalents	2,439	2,548
Goodwill and acquired intangible assets, net	741	757
Other assets	3,550	3,334
Total assets	89,664	94,903
Liabilities
Short-term borrowings	7,078	8,483
Long-term borrowings	79,137	81,715
Other liabilities	1,184	1,356
Total liabilities	87,399	91,554
Commitments and contingencies
Equity
Common stock, par value $0.01 per share, 1.125 billion shares authorized: 453 million and 451 million shares issued, respectively	4	4
Additional paid-in capital	3,220	3,198
Accumulated other comprehensive loss (net of tax benefit of $96 and $30, respectively)	(294)	(91)
Retained earnings	3,175	3,664
Total Navient Corporation stockholders’ equity before treasury stock	6,105	6,775
Less: Common stock held in treasury at cost: 267 million and 236 million shares, respectively	(3,851)	(3,439)
Total Navient Corporation stockholders’ equity	2,254	3,336
Noncontrolling interest	11	13
Total equity	2,265	3,349
Total liabilities and equity	89,664	94,903
FFELP Loans [Member]
Assets
Loans, net	59,559	64,575
Private Education Loans [Member]
Assets
Loans, net	21,289	22,245
Assets and Liabilities of Consolidated Variable Interest Entities [Member]
Assets
Loans, net	77,919	83,864
Investments
Total assets	81,632	87,459
Investments
Restricted cash	2,405	2,506
Other assets, net	1,308	1,089
Liabilities
Short-term borrowings	4,959	7,089
Long-term borrowings	70,641	72,856
Net assets of consolidated variable interest entities	6,032	7,514
Assets and Liabilities of Consolidated Variable Interest Entities [Member] | FFELP Loans [Member]
Assets
Loans, net	59,222	64,255
Assets and Liabilities of Consolidated Variable Interest Entities [Member] | Private Education Loans [Member]
Assets
Loans, net	$ 18,697	$ 19,609