Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income:
Cash and investments	$ 1	$ 23	$ 15	$ 75
Total interest income	761	1,166	2,567	3,605
Total interest expense	425	854	1,658	2,714
Net interest income	336	312	909	891
Less: provisions for loan losses	14	64	153	208
Net interest income after provisions for loan losses	322	248	756	683
Other income (loss):
Servicing revenue	54	60	163	182
Asset recovery and business processing revenue	125	123	337	364
Other income (loss)		9	17	37
Gains on sales of loans				16
Gains on debt repurchases				59
Gains (losses) on derivative and hedging activities, net	(2)	4	(255)	(21)
Total other income (loss)	177	196	262	637
Expenses:
Salaries and benefits	121	120	362	372
Other operating expenses	111	131	333	377
Total operating expenses	232	251	695	749
Goodwill and acquired intangible asset impairment and amortization expense	5	6	16	23
Restructuring/other reorganization expenses	3	2	9	4
Total expenses	240	259	720	776
Income before income tax expense	259	185	298	544
Income tax expense	52	40	71	119
Net income	$ 207	$ 145	$ 227	$ 425
Basic earnings per common share	$ 1.08	$ 0.64	$ 1.16	$ 1.81
Average common shares outstanding	193	225	195	235
Diluted earnings per common share	$ 1.07	$ 0.63	$ 1.15	$ 1.79
Average common and common equivalent shares outstanding	194	228	197	238
Dividends per common share	$ 0.16	$ 0.16	$ 0.48	$ 0.48
FFELP Loans [Member]
Interest income:
Total interest income	$ 410	$ 706	$ 1,435	$ 2,211
Less: provisions for loan losses	4	8	13	23
Private Education Loans [Member]
Interest income:
Total interest income	350	437	1,117	1,317
Less: provisions for loan losses	$ 10	$ 56	$ 140	185
Other Loans [Member]
Interest income:
Total interest income				$ 2