LOANS AND LEASES - Schedule of Loans Disaggregated by Year of Origination and by Risk Rating (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	$ 141,358	$ 140,221	$ 135,370
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	6,718	17,368
Term loans by origination year, year two	16,960	13,250
Term loans by origination year, year three	13,037	11,728
Term loans by origination year, year four	10,744	7,726
Term loans by origination year, year five	6,569	5,612
Prior year	10,668	8,092
Revolving	7,754	7,924
Revolving Converted to Term Loans	90	99
Total loans and leases	72,540	71,799
Commercial | Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	680	1,095
Term loans by origination year, year two	1,430	1,942
Term loans by origination year, year three	1,754	1,358
Term loans by origination year, year four	1,154	307
Term loans by origination year, year five	201	166
Prior year	147	93
Revolving	162	148
Revolving Converted to Term Loans	1	0
Total loans and leases	5,529	5,109
Commercial | Commercial construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	636	1,095
Term loans by origination year, year two	1,384	1,854
Term loans by origination year, year three	1,662	1,276
Term loans by origination year, year four	1,079	287
Term loans by origination year, year five	192	152
Prior year	132	52
Revolving	162	148
Revolving Converted to Term Loans	1	0
Total loans and leases	5,248	4,864
Commercial | Commercial construction | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	28	0
Term loans by origination year, year two	25	80
Term loans by origination year, year three	83	35
Term loans by origination year, year four	21	0
Term loans by origination year, year five	0	7
Prior year	7	24
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	164	146
Commercial | Commercial construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	16	0
Term loans by origination year, year two	21	8
Term loans by origination year, year three	9	47
Term loans by origination year, year four	54	20
Term loans by origination year, year five	9	7
Prior year	8	17
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	117	99
Commercial | Commercial construction | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Commercial | Commercial construction | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Commercial | Owner occupied commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	606	2,773
Term loans by origination year, year two	2,769	2,525
Term loans by origination year, year three	2,628	2,953
Term loans by origination year, year four	2,963	2,721
Term loans by origination year, year five	2,607	2,304
Prior year	5,124	3,294
Revolving	224	242
Revolving Converted to Term Loans	30	30
Total loans and leases	16,951	16,842
Commercial | Owner occupied commercial mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	591	2,721
Term loans by origination year, year two	2,683	2,445
Term loans by origination year, year three	2,501	2,747
Term loans by origination year, year four	2,655	2,581
Term loans by origination year, year five	2,475	2,199
Prior year	4,782	2,988
Revolving	203	223
Revolving Converted to Term Loans	29	29
Total loans and leases	15,919	15,933
Commercial | Owner occupied commercial mortgage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	2	22
Term loans by origination year, year two	28	46
Term loans by origination year, year three	23	70
Term loans by origination year, year four	89	58
Term loans by origination year, year five	54	32
Prior year	60	61
Revolving	7	9
Revolving Converted to Term Loans	0	0
Total loans and leases	263	298
Commercial | Owner occupied commercial mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	13	30
Term loans by origination year, year two	58	34
Term loans by origination year, year three	104	136
Term loans by origination year, year four	219	82
Term loans by origination year, year five	78	73
Prior year	282	245
Revolving	14	10
Revolving Converted to Term Loans	1	1
Total loans and leases	769	611
Commercial | Owner occupied commercial mortgage | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Commercial | Owner occupied commercial mortgage | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Commercial | Non-owner occupied commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	766	2,891
Term loans by origination year, year two	3,686	3,163
Term loans by origination year, year three	3,740	3,208
Term loans by origination year, year four	2,901	2,123
Term loans by origination year, year five	1,541	1,738
Prior year	3,386	2,949
Revolving	116	119
Revolving Converted to Term Loans	3	3
Total loans and leases	16,139	16,194
Commercial | Non-owner occupied commercial mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	699	2,879
Term loans by origination year, year two	3,274	3,082
Term loans by origination year, year three	3,490	2,744
Term loans by origination year, year four	2,501	2,041
Term loans by origination year, year five	1,495	1,598
Prior year	3,030	2,134
Revolving	116	119
Revolving Converted to Term Loans	3	3
Total loans and leases	14,608	14,600
Commercial | Non-owner occupied commercial mortgage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	35	0
Term loans by origination year, year two	86	66
Term loans by origination year, year three	113	293
Term loans by origination year, year four	159	43
Term loans by origination year, year five	4	4
Prior year	26	86
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	423	492
Commercial | Non-owner occupied commercial mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	32	12
Term loans by origination year, year two	311	15
Term loans by origination year, year three	137	171
Term loans by origination year, year four	230	39
Term loans by origination year, year five	38	116
Prior year	279	653
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	1,027	1,006
Commercial | Non-owner occupied commercial mortgage | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	15	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	11	0
Term loans by origination year, year five	4	20
Prior year	51	76
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	81	96
Commercial | Non-owner occupied commercial mortgage | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	4,428	9,835
Term loans by origination year, year two	8,351	5,065
Term loans by origination year, year three	4,408	3,855
Term loans by origination year, year four	3,425	2,408
Term loans by origination year, year five	2,084	1,294
Prior year	1,895	1,702
Revolving	7,252	7,415
Revolving Converted to Term Loans	56	66
Total loans and leases	31,899	31,640
Commercial | Commercial and industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	4,253	9,677
Term loans by origination year, year two	8,002	4,862
Term loans by origination year, year three	4,110	3,417
Term loans by origination year, year four	2,919	2,042
Term loans by origination year, year five	1,689	1,101
Prior year	1,805	1,408
Revolving	6,662	6,886
Revolving Converted to Term Loans	53	62
Total loans and leases	29,493	29,455
Commercial | Commercial and industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	90	92
Term loans by origination year, year two	119	53
Term loans by origination year, year three	99	178
Term loans by origination year, year four	244	245
Term loans by origination year, year five	143	25
Prior year	28	69
Revolving	133	114
Revolving Converted to Term Loans	0	0
Total loans and leases	856	776
Commercial | Commercial and industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	85	61
Term loans by origination year, year two	220	127
Term loans by origination year, year three	174	225
Term loans by origination year, year four	229	106
Term loans by origination year, year five	239	167
Prior year	60	207
Revolving	290	274
Revolving Converted to Term Loans	3	4
Total loans and leases	1,300	1,171
Commercial | Commercial and industrial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	5
Term loans by origination year, year two	10	23
Term loans by origination year, year three	25	35
Term loans by origination year, year four	33	15
Term loans by origination year, year five	13	1
Prior year	2	18
Revolving	20	6
Revolving Converted to Term Loans	0	0
Total loans and leases	103	103
Commercial | Commercial and industrial | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	147	135
Revolving Converted to Term Loans	0	0
Total loans and leases	147	135
Commercial | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	238	774
Term loans by origination year, year two	724	555
Term loans by origination year, year three	507	354
Term loans by origination year, year four	301	167
Term loans by origination year, year five	136	110
Prior year	116	54
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	2,022	2,014
Commercial | Leases | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	226	739
Term loans by origination year, year two	657	506
Term loans by origination year, year three	450	300
Term loans by origination year, year four	255	147
Term loans by origination year, year five	119	96
Prior year	100	46
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	1,807	1,834
Commercial | Leases | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	6	13
Term loans by origination year, year two	28	17
Term loans by origination year, year three	20	29
Term loans by origination year, year four	25	5
Term loans by origination year, year five	5	4
Prior year	2	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	86	68
Commercial | Leases | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	6	21
Term loans by origination year, year two	37	29
Term loans by origination year, year three	34	23
Term loans by origination year, year four	19	13
Term loans by origination year, year five	11	9
Prior year	14	8
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	121	103
Commercial | Leases | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	1
Term loans by origination year, year two	2	3
Term loans by origination year, year three	3	2
Term loans by origination year, year four	2	2
Term loans by origination year, year five	1	1
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	8	9
Commercial | Leases | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	895	4,475
Term loans by origination year, year two	4,220	2,875
Term loans by origination year, year three	2,497	2,380
Term loans by origination year, year four	2,088	731
Term loans by origination year, year five	626	169
Prior year	152	12
Revolving	30,095	29,508
Revolving Converted to Term Loans	98	44
Total loans and leases	40,671	40,194
SVB | Global fund banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	214	892
Term loans by origination year, year two	902	179
Term loans by origination year, year three	172	152
Term loans by origination year, year four	114	28
Term loans by origination year, year five	18	16
Prior year	19	12
Revolving	27,050	26,589
Revolving Converted to Term Loans	83	36
Total loans and leases	28,572	27,904
SVB | Global fund banking | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	214	892
Term loans by origination year, year two	902	179
Term loans by origination year, year three	172	147
Term loans by origination year, year four	111	20
Term loans by origination year, year five	18	14
Prior year	19	12
Revolving	27,049	26,588
Revolving Converted to Term Loans	83	36
Total loans and leases	28,568	27,888
SVB | Global fund banking | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB | Global fund banking | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	5
Term loans by origination year, year four	3	8
Term loans by origination year, year five	0	2
Prior year	0	0
Revolving	1	1
Revolving Converted to Term Loans	0	0
Total loans and leases	4	16
SVB | Global fund banking | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB | Global fund banking | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB | Investor dependent - early stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	48	360
Term loans by origination year, year two	361	308
Term loans by origination year, year three	218	165
Term loans by origination year, year four	118	22
Term loans by origination year, year five	10	0
Prior year	0	0
Revolving	150	139
Revolving Converted to Term Loans	3	3
Total loans and leases	908	997
SVB | Investor dependent - early stage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	46	293
Term loans by origination year, year two	279	201
Term loans by origination year, year three	109	94
Term loans by origination year, year four	59	5
Term loans by origination year, year five	1	0
Prior year	0	0
Revolving	107	97
Revolving Converted to Term Loans	0	3
Total loans and leases	601	693
SVB | Investor dependent - early stage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	8
Term loans by origination year, year two	16	8
Term loans by origination year, year three	9	3
Term loans by origination year, year four	2	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	27	19
SVB | Investor dependent - early stage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	44
Term loans by origination year, year two	64	83
Term loans by origination year, year three	88	62
Term loans by origination year, year four	50	17
Term loans by origination year, year five	8	0
Prior year	0	0
Revolving	41	41
Revolving Converted to Term Loans	3	0
Total loans and leases	254	247
SVB | Investor dependent - early stage | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	2	15
Term loans by origination year, year two	2	16
Term loans by origination year, year three	12	6
Term loans by origination year, year four	7	0
Term loans by origination year, year five	1	0
Prior year	0	0
Revolving	2	1
Revolving Converted to Term Loans	0	0
Total loans and leases	26	38
SVB | Investor dependent - early stage | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB | Investor dependent - growth stage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	136	940
Term loans by origination year, year two	948	552
Term loans by origination year, year three	447	385
Term loans by origination year, year four	252	51
Term loans by origination year, year five	29	1
Prior year	1	0
Revolving	237	267
Revolving Converted to Term Loans	0	0
Total loans and leases	2,050	2,196
SVB | Investor dependent - growth stage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	136	842
Term loans by origination year, year two	804	439
Term loans by origination year, year three	309	258
Term loans by origination year, year four	177	32
Term loans by origination year, year five	12	0
Prior year	0	0
Revolving	188	218
Revolving Converted to Term Loans	0	0
Total loans and leases	1,626	1,789
SVB | Investor dependent - growth stage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	9
Term loans by origination year, year two	45	20
Term loans by origination year, year three	4	3
Term loans by origination year, year four	1	0
Term loans by origination year, year five	13	0
Prior year	0	0
Revolving	28	26
Revolving Converted to Term Loans	0	0
Total loans and leases	91	58
SVB | Investor dependent - growth stage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	78
Term loans by origination year, year two	84	90
Term loans by origination year, year three	131	102
Term loans by origination year, year four	55	14
Term loans by origination year, year five	4	1
Prior year	0	0
Revolving	17	20
Revolving Converted to Term Loans	0	0
Total loans and leases	291	305
SVB | Investor dependent - growth stage | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	11
Term loans by origination year, year two	15	3
Term loans by origination year, year three	3	22
Term loans by origination year, year four	19	5
Term loans by origination year, year five	0	0
Prior year	1	0
Revolving	4	3
Revolving Converted to Term Loans	0	0
Total loans and leases	42	44
SVB | Investor dependent - growth stage | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
SVB | Innovation C&I and cash flow dependent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	497	2,283
Term loans by origination year, year two	2,009	1,836
Term loans by origination year, year three	1,660	1,678
Term loans by origination year, year four	1,604	630
Term loans by origination year, year five	569	152
Prior year	132	0
Revolving	2,658	2,513
Revolving Converted to Term Loans	12	5
Total loans and leases	9,141	9,097
SVB | Innovation C&I and cash flow dependent | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	446	2,136
Term loans by origination year, year two	1,915	1,433
Term loans by origination year, year three	1,284	1,205
Term loans by origination year, year four	1,099	347
Term loans by origination year, year five	342	120
Prior year	104	0
Revolving	2,247	2,147
Revolving Converted to Term Loans	12	5
Total loans and leases	7,449	7,393
SVB | Innovation C&I and cash flow dependent | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	43	53
Term loans by origination year, year two	0	183
Term loans by origination year, year three	64	77
Term loans by origination year, year four	73	57
Term loans by origination year, year five	20	4
Prior year	0	0
Revolving	132	89
Revolving Converted to Term Loans	0	0
Total loans and leases	332	463
SVB | Innovation C&I and cash flow dependent | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	1	94
Term loans by origination year, year two	94	220
Term loans by origination year, year three	300	389
Term loans by origination year, year four	423	226
Term loans by origination year, year five	207	28
Prior year	28	0
Revolving	277	180
Revolving Converted to Term Loans	0	0
Total loans and leases	1,330	1,137
SVB | Innovation C&I and cash flow dependent | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	7	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	12	7
Term loans by origination year, year four	9	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	2	97
Revolving Converted to Term Loans	0	0
Total loans and leases	30	104
SVB | Innovation C&I and cash flow dependent | Ungraded
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	539	2,952
Term loans by origination year, year two	2,995	3,495
Term loans by origination year, year three	3,330	5,676
Term loans by origination year, year four	5,525	5,369
Term loans by origination year, year five	5,234	3,030
Prior year	7,336	4,597
Revolving	3,056	2,982
Revolving Converted to Term Loans	132	127
Total loans and leases	28,147	28,228
Consumer | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	392	2,182
Term loans by origination year, year two	2,283	2,988
Term loans by origination year, year three	2,877	5,294
Term loans by origination year, year four	5,193	5,180
Term loans by origination year, year five	5,073	2,955
Prior year	7,236	4,549
Revolving	6	4
Revolving Converted to Term Loans	0	0
Total loans and leases	23,060	23,152
Consumer | Residential mortgage | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	391	2,178
Term loans by origination year, year two	2,275	2,968
Term loans by origination year, year three	2,860	5,264
Term loans by origination year, year four	5,152	5,148
Term loans by origination year, year five	5,021	2,913
Prior year	7,007	4,353
Revolving	6	4
Revolving Converted to Term Loans	0	0
Total loans and leases	22,712	22,828
Consumer | Residential mortgage | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	3
Term loans by origination year, year two	7	13
Term loans by origination year, year three	12	19
Term loans by origination year, year four	28	23
Term loans by origination year, year five	39	31
Prior year	115	95
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	201	184
Consumer | Residential mortgage | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	1
Term loans by origination year, year two	0	3
Term loans by origination year, year three	2	5
Term loans by origination year, year four	5	2
Term loans by origination year, year five	5	2
Prior year	28	28
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	40	41
Consumer | Residential mortgage | 90 Days or Greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	1	0
Term loans by origination year, year two	1	4
Term loans by origination year, year three	3	6
Term loans by origination year, year four	8	7
Term loans by origination year, year five	8	9
Prior year	86	73
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	107	99
Consumer | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	2,503	2,440
Revolving Converted to Term Loans	132	127
Total loans and leases	2,635	2,567
Consumer | Revolving mortgage | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	2,485	2,420
Revolving Converted to Term Loans	112	108
Total loans and leases	2,597	2,528
Consumer | Revolving mortgage | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	14	16
Revolving Converted to Term Loans	6	6
Total loans and leases	20	22
Consumer | Revolving mortgage | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	1	1
Revolving Converted to Term Loans	6	5
Total loans and leases	7	6
Consumer | Revolving mortgage | 90 Days or Greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	3	3
Revolving Converted to Term Loans	8	8
Total loans and leases	11	11
Consumer | Consumer auto
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	131	622
Term loans by origination year, year two	569	363
Term loans by origination year, year three	325	282
Term loans by origination year, year four	250	159
Term loans by origination year, year five	136	69
Prior year	76	28
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	1,487	1,523
Consumer | Consumer auto | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	131	617
Term loans by origination year, year two	565	358
Term loans by origination year, year three	321	277
Term loans by origination year, year four	245	155
Term loans by origination year, year five	133	68
Prior year	75	27
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	1,470	1,502
Consumer | Consumer auto | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	3
Term loans by origination year, year two	2	3
Term loans by origination year, year three	2	3
Term loans by origination year, year four	3	2
Term loans by origination year, year five	2	1
Prior year	1	1
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	10	13
Consumer | Consumer auto | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	1
Term loans by origination year, year two	1	1
Term loans by origination year, year three	1	1
Term loans by origination year, year four	1	1
Term loans by origination year, year five	1	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	4	4
Consumer | Consumer auto | 90 Days or Greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	1
Term loans by origination year, year two	1	1
Term loans by origination year, year three	1	1
Term loans by origination year, year four	1	1
Term loans by origination year, year five	0	0
Prior year	0	0
Revolving	0	0
Revolving Converted to Term Loans	0	0
Total loans and leases	3	4
Consumer | Consumer other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	16	148
Term loans by origination year, year two	143	144
Term loans by origination year, year three	128	100
Term loans by origination year, year four	82	30
Term loans by origination year, year five	25	6
Prior year	24	20
Revolving	547	538
Revolving Converted to Term Loans	0	0
Total loans and leases	965	986
Consumer | Consumer other | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	16	147
Term loans by origination year, year two	142	144
Term loans by origination year, year three	127	99
Term loans by origination year, year four	82	30
Term loans by origination year, year five	25	6
Prior year	21	18
Revolving	540	531
Revolving Converted to Term Loans	0	0
Total loans and leases	953	975
Consumer | Consumer other | 30-59 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	1
Term loans by origination year, year two	1	0
Term loans by origination year, year three	1	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	1	1
Revolving	3	3
Revolving Converted to Term Loans	0	0
Total loans and leases	6	5
Consumer | Consumer other | 60-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	1
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	1	0
Revolving	2	2
Revolving Converted to Term Loans	0	0
Total loans and leases	3	3
Consumer | Consumer other | 90 Days or Greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans by origination year, year one	0	0
Term loans by origination year, year two	0	0
Term loans by origination year, year three	0	0
Term loans by origination year, year four	0	0
Term loans by origination year, year five	0	0
Prior year	1	1
Revolving	2	2
Revolving Converted to Term Loans	0	0
Total loans and leases	$ 3	$ 3