Allowance for Loan Losses - Private Education Loan Portfolio Stratified by Key Credit Quality Indicators (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year				$ 89,187
Loan allowance for losses	$ (1,388)	$ (1,400)		$ (1,166)	$ (1,218)	$ (1,286)
Private Education Loans - TDRs [Member]
Accounts Notes And Loans Receivable [Line Items]
Loan allowance for losses	(930)
Loans, net	7,650
Private Education Loans - TDRs [Member] | FICO Scores [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	8
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	22
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	30
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	11
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	8,509
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 8,580
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%
Private Education Loans - TDRs [Member] | FICO Scores [Member] | 640 and Above [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 5
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	15
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	24
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	9
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	6,524
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 6,577
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	77.00%
Private Education Loans - TDRs [Member] | FICO Scores [Member] | Below 640 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 3
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	7
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	6
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	2
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	1,985
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 2,003
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	23.00%
Private Education Loans - TDRs [Member] | School Type [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 8
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	22
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	30
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	11
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	8,509
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 8,580		$ 9,270
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - TDRs [Member] | School Type [Member] | Not For Profit [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 7
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	21
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	29
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	11
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	6,798
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 6,866		$ 7,387
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	80.00%		80.00%
Private Education Loans - TDRs [Member] | School Type [Member] | For Profit [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 1
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	1,711
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 1,714		$ 1,883
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	20.00%		20.00%
Private Education Loans - TDRs [Member] | Cosigners [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 8
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	22
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	30
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	11
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	8,509
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 8,580		$ 9,270
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - TDRs [Member] | Cosigners [Member] | With Cosigner [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	$ 9
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	5
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,366
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 5,380		$ 5,792
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	63.00%		62.00%
Private Education Loans - TDRs [Member] | Cosigners [Member] | Without Cosigner [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 8
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	22
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	21
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	6
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	3,143
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 3,200		$ 3,478
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	37.00%		38.00%
Private Education Loans - TDRs [Member] | Seasoning [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 8
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	22
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	30
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	11
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	8,509
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 8,580		$ 9,270
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | 1-12 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 7
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	7
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	157
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 172		$ 224
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	2.00%		3.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | 13-24 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	$ 1
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	15
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	8
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	217
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 242		$ 301
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	3.00%		3.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | 25-36 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	$ 15
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	5
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	347
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 367		$ 472
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	4.00%		5.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | 37-48 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	$ 5
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	5
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	514
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 524		$ 662
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	6.00%		7.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | More than 48 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	$ 6,981
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 6,981		$ 7,262
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	81.00%		78.00%
Private Education Loans - TDRs [Member] | Seasoning [Member] | School/Grace/Deferment [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	$ 1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	293
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 294		$ 349
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	4.00%		4.00%
Private Education Loans - TDRs [Member] | Original Winning FICO Scores [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 9,270
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			100.00%
Private Education Loans - TDRs [Member] | Original Winning FICO Scores [Member] | FICO 640 and Above [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 8,493
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			92.00%
Private Education Loans - TDRs [Member] | Original Winning FICO Scores [Member] | FICO Below 640 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 777
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			8.00%
Private Education Loans - Non-TDRs [Member]
Accounts Notes And Loans Receivable [Line Items]
Loan allowance for losses	$ (161)
Loans, net	13,639
Private Education Loans - Non-TDRs [Member] | FICO Scores [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	3,149
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,372
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,215
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	368
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	74
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,622
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 13,800
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%
Private Education Loans - Non-TDRs [Member] | FICO Scores [Member] | 640 and Above [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,135
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,336
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,197
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	364
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	73
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,426
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 13,531
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	98.00%
Private Education Loans - Non-TDRs [Member] | FICO Scores [Member] | Below 640 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 14
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	36
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	18
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	4
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	196
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 269
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	2.00%
Private Education Loans - Non-TDRs [Member] | School Type [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,149
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,372
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,215
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	368
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	74
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,622
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 13,800		$ 14,052
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - Non-TDRs [Member] | School Type [Member] | Not For Profit [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 2,995
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,153
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,123
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	351
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	74
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	4,877
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 12,573		$ 12,614
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	91.00%		90.00%
Private Education Loans - Non-TDRs [Member] | School Type [Member] | For Profit [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 154
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	219
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	92
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	17
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	745
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 1,227		$ 1,438
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	9.00%		10.00%
Private Education Loans - Non-TDRs [Member] | Cosigners [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,149
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,372
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,215
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	368
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	74
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,622
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 13,800		$ 14,052
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - Non-TDRs [Member] | Cosigners [Member] | With Cosigner [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 2
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	14
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	44
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	18
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	3,893
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 3,972		$ 5,184
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	29.00%		37.00%
Private Education Loans - Non-TDRs [Member] | Cosigners [Member] | Without Cosigner [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,147
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,358
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,214
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	324
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	56
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	1,729
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 9,828		$ 8,868
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	71.00%		63.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,149
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	3,372
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	1,215
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	368
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	74
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,622
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 13,800		$ 14,052
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	100.00%		100.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | 1-12 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 3,141
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	2,184
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	3
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	36
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 5,365		$ 4,673
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	39.00%		33.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | 13-24 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 1
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	1,168
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	587
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	2
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	35
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 1,793		$ 1,570
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	13.00%		11.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | 25-36 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	$ 613
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	210
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	70
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 893		$ 603
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	6.00%		4.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | 37-48 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	$ 153
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	59
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	128
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 340		$ 251
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	2.00%		2.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | More than 48 Payments [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	$ 14
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	5,182
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 5,196		$ 6,675
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	38.00%		48.00%
Private Education Loans - Non-TDRs [Member] | Seasoning [Member] | School/Grace/Deferment [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year 2020	$ 7
Total Private Education Loan Credit Quality Indicators by Origination Year 2019	20
Total Private Education Loan Credit Quality Indicators by Origination Year 2018	12
Total Private Education Loan Credit Quality Indicators by Origination Year 2017	2
Total Private Education Loan Credit Quality Indicators by Origination Year 2016	1
Total Private Education Loan Credit Quality Indicators by Origination Year Prior	171
Total Private Education Loan Credit Quality Indicators by Origination Year	$ 213		$ 280
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent	2.00%		2.00%
Private Education Loans - Non-TDRs [Member] | Original Winning FICO Scores [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 14,052
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			100.00%
Private Education Loans - Non-TDRs [Member] | Original Winning FICO Scores [Member] | FICO 640 and Above [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 13,687
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			97.00%
Private Education Loans - Non-TDRs [Member] | Original Winning FICO Scores [Member] | FICO Below 640 [Member]
Accounts Notes And Loans Receivable [Line Items]
Total Private Education Loan Credit Quality Indicators by Origination Year			$ 365
Total Private Education Loan Credit Quality Indicators by Origination Year, Percent			3.00%