CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 4,334,603	$ 4,455,292
Investments
Trading investments at fair value (cost of $29,049 and $12,551, respectively )	37,465	16,923
Available-for-sale investments	2,517,956	1,996,634
Other investments	140,037	80,794
Total investments	2,695,458	2,094,351
Loans held for investment (net of allowance for losses of $1,165,335 and $1,361,723, respectively)	20,341,283	19,183,143
Loans held for sale	0	2,885,640
Restricted cash	210,741	154,417
Other interest-earning assets	9,655	42,874
Accrued interest receivable	1,205,667	1,387,305
Premises and equipment, net	150,516	154,670
Income taxes receivable, net	239,578	374,706
Tax indemnification receivable	8,047	18,492
Other assets	26,351	19,533
Total assets	29,221,899	30,770,423
Liabilities
Deposits	20,828,124	22,666,039
Long-term borrowings	5,930,990	5,189,217
Other liabilities	313,074	352,332
Total liabilities	27,072,188	28,207,588
Commitments and contingencies
Preferred stock, par value $0.20 per share, 20 million shares authorized:
Common stock, par value $0.20 per share, 1.125 billion shares authorized: 432.0 million and 456.7 million shares issued, respectively	86,403	91,346
Additional paid-in capital	1,074,384	1,331,247
Accumulated other comprehensive loss (net of tax benefit of $(5,707) and $(10,908), respectively)	(17,897)	(34,200)
Retained earnings	2,817,134	1,722,365
Total SLM Corporation stockholders’ equity before treasury stock	4,211,094	3,361,828
Less: Common stock held in treasury at cost: 153.1 million and 81.4 million shares, respectively	(2,061,383)	(798,993)
Total equity	2,149,711	2,562,835
Total liabilities and equity	29,221,899	30,770,423
Series B Preferred Stock
Preferred stock, par value $0.20 per share, 20 million shares authorized:
Series B: 2.5 million and 2.5 million shares issued, respectively, at stated value of $100 per share	$ 251,070	$ 251,070