Loans - Home Loan: Risk Profile by Vintage, Geography, Lien Priority and Interest Rate Type (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 229,851	$ 208,316	$ 197,199
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 70,372	$ 71,439
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment [Member] | Home loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 25,227	$ 30,035
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 25,227	$ 30,035
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | Origination during or before 2006
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 7,073	$ 8,542
Percentage of portfolio	28.00%	28.50%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2007
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 4,442	$ 5,086
Percentage of portfolio	17.60%	16.90%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2008
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 3,023	$ 3,681
Percentage of portfolio	12.00%	12.30%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,595	$ 2,106
Percentage of portfolio	6.30%	7.00%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,305	$ 3,228
Percentage of portfolio	9.20%	10.70%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,652	$ 3,728
Percentage of portfolio	10.50%	12.40%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,665	$ 2,153
Percentage of portfolio	6.60%	7.20%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 628	$ 746
Percentage of portfolio	2.50%	2.50%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 711	$ 765
Percentage of portfolio	2.80%	2.50%
Consumer Portfolio Segment [Member] | Home loan | Origination Year Concentration Risk | Home Loans Receivable | 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,133
Percentage of portfolio	4.50%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 25,227	$ 30,035
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 5,884	$ 6,943
Percentage of portfolio	23.40%	23.10%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,171	$ 2,452
Percentage of portfolio	8.60%	8.20%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,539	$ 1,720
Percentage of portfolio	6.10%	5.70%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,490	$ 1,873
Percentage of portfolio	5.90%	6.20%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,354	$ 1,538
Percentage of portfolio	5.40%	5.10%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,293	$ 1,529
Percentage of portfolio	5.10%	5.10%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,146	$ 1,375
Percentage of portfolio	4.50%	4.60%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Louisiana
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,096	$ 1,243
Percentage of portfolio	4.30%	4.10%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | ARIZONA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,076	$ 1,304
Percentage of portfolio	4.30%	4.40%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 919	$ 1,147
Percentage of portfolio	3.60%	3.80%
Consumer Portfolio Segment [Member] | Home loan | Geographic Concentration Risk | Home Loans Receivable | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 7,259	$ 8,911
Percentage of portfolio	28.80%	29.70%
Consumer Portfolio Segment [Member] | Home loan | Lien Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 25,227	$ 30,035
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment [Member] | Home loan | Lien Type Concentration Risk | Home Loans Receivable | 1st lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 23,912	$ 28,639
Percentage of portfolio	94.80%	95.40%
Consumer Portfolio Segment [Member] | Home loan | Lien Type Concentration Risk | Home Loans Receivable | 2nd lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,315	$ 1,396
Percentage of portfolio	5.20%	4.60%
Consumer Portfolio Segment [Member] | Home loan | Interest Rate Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 25,227	$ 30,035
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment [Member] | Home loan | Interest Rate Type Concentration Risk | Home Loans Receivable | Fixed rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 5,015	$ 5,286
Percentage of portfolio	19.90%	17.60%
Consumer Portfolio Segment [Member] | Home loan | Interest Rate Type Concentration Risk | Home Loans Receivable | Adjustable rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 20,212	$ 24,749
Percentage of portfolio	80.10%	82.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 6,700	$ 6,794
Percentage of portfolio	26.60%	22.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | Origination during or before 2006
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,290	$ 2,827
Percentage of portfolio	9.00%	9.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2007
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 269	$ 320
Percentage of portfolio	1.10%	1.10%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2008
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 157	$ 187
Percentage of portfolio	0.60%	0.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 97	$ 107
Percentage of portfolio	0.40%	0.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 97	$ 120
Percentage of portfolio	0.40%	0.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 176	$ 221
Percentage of portfolio	0.70%	0.70%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,276	$ 1,620
Percentage of portfolio	5.10%	5.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 557	$ 661
Percentage of portfolio	2.20%	2.20%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 680	$ 731
Percentage of portfolio	2.70%	2.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,101
Percentage of portfolio	4.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 6,700	$ 6,794
Percentage of portfolio	26.60%	22.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 871	$ 924
Percentage of portfolio	3.50%	3.10%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,295	$ 1,379
Percentage of portfolio	5.10%	4.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 511	$ 457
Percentage of portfolio	2.00%	1.50%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 89	$ 86
Percentage of portfolio	0.40%	0.30%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 428	$ 385
Percentage of portfolio	1.70%	1.30%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 353	$ 341
Percentage of portfolio	1.40%	1.10%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 157	$ 161
Percentage of portfolio	0.60%	0.50%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Louisiana
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,069	$ 1,205
Percentage of portfolio	4.20%	4.00%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | ARIZONA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 81	$ 89
Percentage of portfolio	0.40%	0.30%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 113	$ 109
Percentage of portfolio	0.40%	0.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,733	$ 1,658
Percentage of portfolio	6.90%	5.50%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 6,700	$ 6,794
Percentage of portfolio	26.60%	22.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable | 1st lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 5,705	$ 5,756
Percentage of portfolio	22.60%	19.20%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable | 2nd lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 995	$ 1,038
Percentage of portfolio	4.00%	3.40%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 6,700	$ 6,794
Percentage of portfolio	26.60%	22.60%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable | Fixed rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,751	$ 2,446
Percentage of portfolio	10.90%	8.10%
Consumer Portfolio Segment [Member] | Home loan | Loans excluding Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable | Adjustable rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 3,949	$ 4,348
Percentage of portfolio	15.70%	14.50%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 18,527	$ 23,241
Percentage of portfolio	73.40%	77.40%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | Origination during or before 2006
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 4,783	$ 5,715
Percentage of portfolio	19.00%	19.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2007
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 4,173	$ 4,766
Percentage of portfolio	16.50%	15.80%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2008
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,866	$ 3,494
Percentage of portfolio	11.40%	11.70%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,498	$ 1,999
Percentage of portfolio	5.90%	6.60%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,208	$ 3,108
Percentage of portfolio	8.80%	10.30%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,476	$ 3,507
Percentage of portfolio	9.80%	11.70%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 389	$ 533
Percentage of portfolio	1.50%	1.80%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 71	$ 85
Percentage of portfolio	0.30%	0.30%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 31	$ 34
Percentage of portfolio	0.10%	0.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Origination Year Concentration Risk | Home Loans Receivable | 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 32
Percentage of portfolio	0.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 18,527	$ 23,241
Percentage of portfolio	73.40%	77.40%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 5,013	$ 6,019
Percentage of portfolio	19.90%	20.00%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 876	$ 1,073
Percentage of portfolio	3.50%	3.60%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Maryland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,028	$ 1,263
Percentage of portfolio	4.10%	4.20%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 1,401	$ 1,787
Percentage of portfolio	5.50%	5.90%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 926	$ 1,153
Percentage of portfolio	3.70%	3.80%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | New Jersey
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 940	$ 1,188
Percentage of portfolio	3.70%	4.00%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 989	$ 1,214
Percentage of portfolio	3.90%	4.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Louisiana
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 27	$ 38
Percentage of portfolio	0.10%	0.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | ARIZONA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 995	$ 1,215
Percentage of portfolio	3.90%	4.10%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 806	$ 1,038
Percentage of portfolio	3.20%	3.40%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Geographic Concentration Risk | Home Loans Receivable | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 5,526	$ 7,253
Percentage of portfolio	21.90%	24.20%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 18,527	$ 23,241
Percentage of portfolio	73.40%	77.40%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable | 1st lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 18,207	$ 22,883
Percentage of portfolio	72.20%	76.20%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Lien Type Concentration Risk | Home Loans Receivable | 2nd lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 320	$ 358
Percentage of portfolio	1.20%	1.20%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 18,527	$ 23,241
Percentage of portfolio	73.40%	77.40%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable | Fixed rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 2,264	$ 2,840
Percentage of portfolio	9.00%	9.50%
Consumer Portfolio Segment [Member] | Home loan | Acquired Loans | Interest Rate Type Concentration Risk | Home Loans Receivable | Adjustable rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for investment	$ 16,263	$ 20,401
Percentage of portfolio	64.40%	67.90%