LOANS AND LEASES - Vintage Credit Quality (Details) - USD ($) $ in Millions |
Mar. 31, 2021 |
Dec. 31, 2020 |
Commercial and industrial |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
$ 4,217
|
$ 14,376
|
2019 |
10,793
|
4,785
|
2018 |
4,295
|
3,016
|
2017 |
2,637
|
1,601
|
2016 |
1,440
|
1,053
|
Prior |
1,909
|
1,098
|
Revolver Total at Amortized Cost Basis |
9,171
|
9,442
|
Revolver Total Converted to Term Loans |
2
|
2
|
Total |
34,464
|
35,373
|
Interest Receivable |
140
|
146
|
Commercial and industrial | Pass |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
4,040
|
13,757
|
2019 |
10,291
|
4,525
|
2018 |
4,087
|
2,758
|
2017 |
2,369
|
1,347
|
2016 |
1,215
|
974
|
Prior |
1,605
|
916
|
Revolver Total at Amortized Cost Basis |
8,656
|
8,894
|
Revolver Total Converted to Term Loans |
2
|
2
|
Total |
32,265
|
33,173
|
Commercial and industrial | OLEM |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
122
|
421
|
2019 |
282
|
116
|
2018 |
98
|
69
|
2017 |
91
|
30
|
2016 |
41
|
33
|
Prior |
92
|
22
|
Revolver Total at Amortized Cost Basis |
128
|
124
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
854
|
815
|
Commercial and industrial | Substandard |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
54
|
196
|
2019 |
216
|
144
|
2018 |
110
|
188
|
2017 |
176
|
224
|
2016 |
184
|
46
|
Prior |
212
|
159
|
Revolver Total at Amortized Cost Basis |
386
|
423
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
1,338
|
1,380
|
Commercial and industrial | Doubtful |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
1
|
2
|
2019 |
4
|
0
|
2018 |
0
|
1
|
2017 |
1
|
0
|
2016 |
0
|
0
|
Prior |
0
|
1
|
Revolver Total at Amortized Cost Basis |
1
|
1
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
7
|
5
|
Commercial real estate |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
412
|
1,863
|
2019 |
1,716
|
1,734
|
2018 |
1,620
|
1,195
|
2017 |
1,146
|
573
|
2016 |
549
|
593
|
Prior |
1,072
|
568
|
Revolver Total at Amortized Cost Basis |
664
|
673
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
7,179
|
7,199
|
Commercial real estate | Pass |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
406
|
1,742
|
2019 |
1,605
|
1,610
|
2018 |
1,475
|
1,122
|
2017 |
1,077
|
507
|
2016 |
454
|
507
|
Prior |
999
|
539
|
Revolver Total at Amortized Cost Basis |
624
|
633
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
6,640
|
6,660
|
Commercial real estate | OLEM |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
2
|
94
|
2019 |
88
|
78
|
2018 |
31
|
63
|
2017 |
62
|
37
|
2016 |
68
|
28
|
Prior |
35
|
14
|
Revolver Total at Amortized Cost Basis |
1
|
4
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
287
|
318
|
Commercial real estate | Substandard |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
4
|
27
|
2019 |
23
|
46
|
2018 |
114
|
10
|
2017 |
7
|
29
|
2016 |
27
|
58
|
Prior |
38
|
14
|
Revolver Total at Amortized Cost Basis |
39
|
36
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
252
|
220
|
Commercial real estate | Doubtful |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
|
0
|
2019 |
|
0
|
2018 |
|
0
|
2017 |
|
0
|
2016 |
|
0
|
Prior |
|
1
|
Revolver Total at Amortized Cost Basis |
|
0
|
Revolver Total Converted to Term Loans |
|
0
|
Total |
|
1
|
Consumer |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
Interest Receivable |
119
|
123
|
Consumer | Automobile |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
1,294
|
4,947
|
2019 |
4,612
|
3,657
|
2018 |
3,249
|
2,143
|
2017 |
1,849
|
1,285
|
2016 |
1,055
|
576
|
Prior |
532
|
170
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
12,591
|
12,778
|
Consumer | Automobile | 750 plus |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
771
|
2,670
|
2019 |
2,381
|
2,013
|
2018 |
1,817
|
1,144
|
2017 |
991
|
742
|
2016 |
608
|
317
|
Prior |
279
|
81
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
6,847
|
6,967
|
Consumer | Automobile | 650-749 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
479
|
1,965
|
2019 |
1,895
|
1,343
|
2018 |
1,161
|
755
|
2017 |
642
|
386
|
2016 |
315
|
175
|
Prior |
163
|
52
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
4,655
|
4,676
|
Consumer | Automobile | Less than 650 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
44
|
312
|
2019 |
336
|
301
|
2018 |
271
|
244
|
2017 |
216
|
157
|
2016 |
132
|
84
|
Prior |
90
|
37
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
1,089
|
1,135
|
Consumer | Home equity |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
225
|
941
|
2019 |
918
|
36
|
2018 |
30
|
35
|
2017 |
29
|
44
|
2016 |
38
|
122
|
Prior |
724
|
678
|
Revolver Total at Amortized Cost Basis |
6,297
|
6,565
|
Revolver Total Converted to Term Loans |
465
|
472
|
Total |
8,726
|
8,893
|
Consumer | Home equity | 750 plus |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
187
|
793
|
2019 |
780
|
26
|
2018 |
21
|
26
|
2017 |
22
|
32
|
2016 |
28
|
89
|
Prior |
479
|
451
|
Revolver Total at Amortized Cost Basis |
4,201
|
4,373
|
Revolver Total Converted to Term Loans |
189
|
192
|
Total |
5,907
|
5,982
|
Consumer | Home equity | 650-749 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
37
|
147
|
2019 |
137
|
9
|
2018 |
8
|
8
|
2017 |
6
|
11
|
2016 |
8
|
27
|
Prior |
171
|
157
|
Revolver Total at Amortized Cost Basis |
1,810
|
1,906
|
Revolver Total Converted to Term Loans |
176
|
181
|
Total |
2,353
|
2,446
|
Consumer | Home equity | Less than 650 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
1
|
1
|
2019 |
1
|
1
|
2018 |
1
|
1
|
2017 |
1
|
1
|
2016 |
2
|
6
|
Prior |
74
|
70
|
Revolver Total at Amortized Cost Basis |
286
|
286
|
Revolver Total Converted to Term Loans |
100
|
99
|
Total |
466
|
465
|
Consumer | Residential mortgage |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
1,224
|
4,294
|
2019 |
4,077
|
1,894
|
2018 |
1,588
|
1,309
|
2017 |
1,095
|
1,450
|
2016 |
1,238
|
1,014
|
Prior |
2,752
|
2,086
|
Revolver Total at Amortized Cost Basis |
1
|
1
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
11,975
|
12,048
|
Consumer | Residential mortgage | 750 plus |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
963
|
3,269
|
2019 |
3,204
|
1,370
|
2018 |
1,143
|
891
|
2017 |
727
|
1,064
|
2016 |
883
|
762
|
Prior |
1,723
|
1,243
|
Revolver Total at Amortized Cost Basis |
1
|
1
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
8,644
|
8,600
|
Consumer | Residential mortgage | 650-749 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
254
|
991
|
2019 |
836
|
435
|
2018 |
355
|
307
|
2017 |
255
|
278
|
2016 |
249
|
171
|
Prior |
621
|
495
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
2,570
|
2,677
|
Consumer | Residential mortgage | Less than 650 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
7
|
34
|
2019 |
37
|
89
|
2018 |
90
|
111
|
2017 |
113
|
108
|
2016 |
106
|
81
|
Prior |
408
|
348
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
761
|
771
|
Consumer | RV and marine |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
313
|
1,488
|
2019 |
1,409
|
755
|
2018 |
699
|
811
|
2017 |
750
|
495
|
2016 |
459
|
229
|
Prior |
588
|
412
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
4,218
|
4,190
|
Consumer | RV and marine | 750 plus |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
267
|
1,136
|
2019 |
1,050
|
525
|
2018 |
491
|
589
|
2017 |
547
|
337
|
2016 |
311
|
153
|
Prior |
375
|
254
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
3,041
|
2,994
|
Consumer | RV and marine | 650-749 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
46
|
348
|
2019 |
351
|
215
|
2018 |
193
|
201
|
2017 |
182
|
136
|
2016 |
126
|
64
|
Prior |
176
|
129
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
1,074
|
1,093
|
Consumer | RV and marine | Less than 650 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
0
|
4
|
2019 |
8
|
15
|
2018 |
15
|
21
|
2017 |
21
|
22
|
2016 |
22
|
12
|
Prior |
37
|
29
|
Revolver Total at Amortized Cost Basis |
0
|
0
|
Revolver Total Converted to Term Loans |
0
|
0
|
Total |
103
|
103
|
Consumer | Other consumer |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
31
|
107
|
2019 |
91
|
122
|
2018 |
105
|
46
|
2017 |
39
|
14
|
2016 |
11
|
6
|
Prior |
21
|
18
|
Revolver Total at Amortized Cost Basis |
608
|
660
|
Revolver Total Converted to Term Loans |
53
|
60
|
Total |
959
|
1,033
|
Consumer | Other consumer | 750 plus |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
22
|
69
|
2019 |
59
|
58
|
2018 |
52
|
26
|
2017 |
21
|
8
|
2016 |
6
|
4
|
Prior |
16
|
14
|
Revolver Total at Amortized Cost Basis |
319
|
340
|
Revolver Total Converted to Term Loans |
2
|
2
|
Total |
497
|
521
|
Consumer | Other consumer | 650-749 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
9
|
36
|
2019 |
30
|
56
|
2018 |
46
|
17
|
2017 |
15
|
5
|
2016 |
4
|
2
|
Prior |
4
|
3
|
Revolver Total at Amortized Cost Basis |
264
|
294
|
Revolver Total Converted to Term Loans |
28
|
30
|
Total |
400
|
443
|
Consumer | Other consumer | Less than 650 |
|
|
Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
2020 |
0
|
2
|
2019 |
2
|
8
|
2018 |
7
|
3
|
2017 |
3
|
1
|
2016 |
1
|
0
|
Prior |
1
|
1
|
Revolver Total at Amortized Cost Basis |
25
|
26
|
Revolver Total Converted to Term Loans |
23
|
28
|
Total |
$ 62
|
$ 69
|