Fair Value of Assets and Liabilities - Schedule of Book Value and Estimated Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
$ 64,621
|
$ 63,418
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
1,158
|
1,125
|
| Securities purchased under agreements to resell |
509
|
613
|
| Trading securities |
1,417
|
1,904
|
| Loans held for sale: |
501
|
406
|
| Securities available for sale at fair value |
7,873
|
8,165
|
| Securities held to maturity |
1,189
|
1,216
|
| Derivative assets |
328
|
327
|
| Other assets: |
|
|
| Total assets |
84,437
|
83,876
|
| Liabilities: |
|
|
| Trading liabilities |
533
|
607
|
| Short-term financial liabilities: |
|
|
| Securities sold under agreements to repurchase |
1,333
|
1,973
|
| Term borrowings: |
|
|
| Other long-term borrowings |
1,321
|
1,321
|
| Derivative liabilities |
410
|
376
|
| Total liabilities |
74,974
|
74,734
|
| Level 3 | FHLB-Cincinnati Stock |
|
|
| Term borrowings: |
|
|
| Restricted investments |
93
|
41
|
| Level 3 | FRB Stock |
|
|
| Term borrowings: |
|
|
| Restricted investments |
203
|
203
|
| Reported Value Measurement |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
64,621
|
63,418
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
1,158
|
1,125
|
| Federal funds sold |
85
|
21
|
| Securities purchased under agreements to resell |
509
|
613
|
| Total short-term financial assets |
1,752
|
1,759
|
| Trading securities |
1,417
|
1,904
|
| Loans held for sale: |
501
|
406
|
| Securities available for sale at fair value |
7,873
|
8,165
|
| Securities held to maturity |
1,189
|
1,216
|
| Derivative assets |
328
|
327
|
| Other assets: |
|
|
| Tax credit investments |
820
|
824
|
| Deferred compensation mutual funds |
110
|
110
|
| Equity, mutual funds, and other |
299
|
281
|
| Total other assets |
1,229
|
1,215
|
| Total assets |
78,910
|
78,410
|
| Liabilities: |
|
|
| Defined maturity deposits |
10,018
|
6,485
|
| Trading liabilities |
533
|
607
|
| Short-term financial liabilities: |
|
|
| Federal funds purchased |
828
|
1,039
|
| Securities sold under agreements to repurchase |
1,333
|
1,973
|
| Other short-term borrowings |
842
|
242
|
| Total short-term financial liabilities |
3,003
|
3,254
|
| Term borrowings: |
|
|
| Real estate investment trust-preferred |
47
|
47
|
| Notes payable—New Market Tax Credit investments |
74
|
74
|
| Secured borrowings |
9
|
12
|
| Junior subordinated debentures |
153
|
153
|
| Other long-term borrowings |
1,038
|
1,035
|
| Total term borrowings |
1,321
|
1,321
|
| Derivative liabilities |
432
|
402
|
| Total liabilities |
15,307
|
12,069
|
| Reported Value Measurement | Commercial, financial, and industrial |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
36,946
|
35,570
|
| Reported Value Measurement | Commercial Real Estate |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,445
|
13,386
|
| Reported Value Measurement | Consumer Real Estate |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,679
|
13,902
|
| Reported Value Measurement | Credit card and other |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
551
|
560
|
| Reported Value Measurement | Mortgage loans (elected fair value) |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
88
|
151
|
| Reported Value Measurement | USDA & SBA loans - LOCOM |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
392
|
233
|
| Reported Value Measurement | Mortgage loans - LOCOM |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
21
|
22
|
| Estimate of Fair Value Measurement |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
64,068
|
62,955
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
1,158
|
1,125
|
| Federal funds sold |
85
|
21
|
| Securities purchased under agreements to resell |
509
|
613
|
| Total short-term financial assets |
1,752
|
1,759
|
| Trading securities |
1,417
|
1,904
|
| Loans held for sale: |
502
|
406
|
| Securities available for sale at fair value |
7,873
|
8,165
|
| Securities held to maturity |
1,038
|
1,073
|
| Derivative assets |
328
|
327
|
| Other assets: |
|
|
| Tax credit investments |
763
|
758
|
| Deferred compensation mutual funds |
110
|
110
|
| Equity, mutual funds, and other |
299
|
281
|
| Total other assets |
1,172
|
1,149
|
| Total assets |
78,150
|
77,738
|
| Liabilities: |
|
|
| Defined maturity deposits |
9,988
|
6,466
|
| Trading liabilities |
533
|
607
|
| Short-term financial liabilities: |
|
|
| Federal funds purchased |
828
|
1,039
|
| Securities sold under agreements to repurchase |
1,333
|
1,973
|
| Other short-term borrowings |
842
|
242
|
| Total short-term financial liabilities |
3,003
|
3,254
|
| Term borrowings: |
|
|
| Real estate investment trust-preferred |
47
|
47
|
| Notes payable—New Market Tax Credit investments |
72
|
73
|
| Secured borrowings |
9
|
12
|
| Junior subordinated debentures |
150
|
150
|
| Other long-term borrowings |
1,042
|
1,058
|
| Total term borrowings |
1,320
|
1,340
|
| Derivative liabilities |
432
|
402
|
| Total liabilities |
15,276
|
12,069
|
| Unfunded Commitments [Abstract] |
|
|
| Loan commitments |
1
|
1
|
| Standby and other commitments |
9
|
10
|
| Estimate of Fair Value Measurement | Level 1 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
1,158
|
1,125
|
| Federal funds sold |
0
|
0
|
| Securities purchased under agreements to resell |
0
|
0
|
| Total short-term financial assets |
1,158
|
1,125
|
| Trading securities |
0
|
0
|
| Loans held for sale: |
0
|
0
|
| Securities available for sale at fair value |
0
|
0
|
| Securities held to maturity |
0
|
0
|
| Derivative assets |
7
|
7
|
| Other assets: |
|
|
| Tax credit investments |
0
|
0
|
| Deferred compensation mutual funds |
110
|
110
|
| Equity, mutual funds, and other |
3
|
37
|
| Total other assets |
113
|
147
|
| Total assets |
1,278
|
1,279
|
| Liabilities: |
|
|
| Defined maturity deposits |
0
|
0
|
| Trading liabilities |
0
|
0
|
| Short-term financial liabilities: |
|
|
| Federal funds purchased |
0
|
0
|
| Securities sold under agreements to repurchase |
0
|
0
|
| Other short-term borrowings |
0
|
0
|
| Total short-term financial liabilities |
0
|
0
|
| Term borrowings: |
|
|
| Real estate investment trust-preferred |
0
|
0
|
| Notes payable—New Market Tax Credit investments |
0
|
0
|
| Secured borrowings |
0
|
0
|
| Junior subordinated debentures |
0
|
0
|
| Other long-term borrowings |
0
|
0
|
| Total term borrowings |
0
|
0
|
| Derivative liabilities |
7
|
9
|
| Total liabilities |
7
|
9
|
| Estimate of Fair Value Measurement | Level 2 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
0
|
0
|
| Federal funds sold |
85
|
21
|
| Securities purchased under agreements to resell |
509
|
613
|
| Total short-term financial assets |
594
|
634
|
| Trading securities |
1,383
|
1,859
|
| Loans held for sale: |
467
|
370
|
| Securities available for sale at fair value |
7,873
|
8,165
|
| Securities held to maturity |
1,038
|
1,073
|
| Derivative assets |
321
|
320
|
| Other assets: |
|
|
| Tax credit investments |
0
|
0
|
| Deferred compensation mutual funds |
0
|
0
|
| Equity, mutual funds, and other |
0
|
0
|
| Total other assets |
0
|
0
|
| Total assets |
11,676
|
12,421
|
| Liabilities: |
|
|
| Defined maturity deposits |
9,988
|
6,466
|
| Trading liabilities |
533
|
607
|
| Short-term financial liabilities: |
|
|
| Federal funds purchased |
828
|
1,039
|
| Securities sold under agreements to repurchase |
1,333
|
1,973
|
| Other short-term borrowings |
842
|
242
|
| Total short-term financial liabilities |
3,003
|
3,254
|
| Term borrowings: |
|
|
| Real estate investment trust-preferred |
0
|
0
|
| Notes payable—New Market Tax Credit investments |
0
|
0
|
| Secured borrowings |
0
|
0
|
| Junior subordinated debentures |
0
|
0
|
| Other long-term borrowings |
1,042
|
1,058
|
| Total term borrowings |
1,042
|
1,058
|
| Derivative liabilities |
403
|
368
|
| Total liabilities |
14,969
|
11,753
|
| Estimate of Fair Value Measurement | Level 3 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
64,068
|
62,955
|
| Short-term financial assets: |
|
|
| Interest-bearing deposits with banks |
0
|
0
|
| Federal funds sold |
0
|
0
|
| Securities purchased under agreements to resell |
0
|
0
|
| Total short-term financial assets |
0
|
0
|
| Trading securities |
34
|
45
|
| Loans held for sale: |
35
|
36
|
| Securities available for sale at fair value |
0
|
0
|
| Securities held to maturity |
0
|
0
|
| Derivative assets |
0
|
0
|
| Other assets: |
|
|
| Tax credit investments |
763
|
758
|
| Deferred compensation mutual funds |
0
|
0
|
| Equity, mutual funds, and other |
296
|
244
|
| Total other assets |
1,059
|
1,002
|
| Total assets |
65,196
|
64,038
|
| Liabilities: |
|
|
| Defined maturity deposits |
0
|
0
|
| Trading liabilities |
0
|
0
|
| Short-term financial liabilities: |
|
|
| Federal funds purchased |
0
|
0
|
| Securities sold under agreements to repurchase |
0
|
0
|
| Other short-term borrowings |
0
|
0
|
| Total short-term financial liabilities |
0
|
0
|
| Term borrowings: |
|
|
| Real estate investment trust-preferred |
47
|
47
|
| Notes payable—New Market Tax Credit investments |
72
|
73
|
| Secured borrowings |
9
|
12
|
| Junior subordinated debentures |
150
|
150
|
| Other long-term borrowings |
0
|
0
|
| Total term borrowings |
278
|
282
|
| Derivative liabilities |
22
|
25
|
| Total liabilities |
300
|
307
|
| Estimate of Fair Value Measurement | Commercial, financial, and industrial |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
36,765
|
35,401
|
| Estimate of Fair Value Measurement | Commercial, financial, and industrial | Level 1 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Commercial, financial, and industrial | Level 2 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Commercial, financial, and industrial | Level 3 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
36,765
|
35,401
|
| Estimate of Fair Value Measurement | Commercial Real Estate |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,434
|
13,289
|
| Estimate of Fair Value Measurement | Commercial Real Estate | Level 1 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Commercial Real Estate | Level 2 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Commercial Real Estate | Level 3 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,434
|
13,289
|
| Estimate of Fair Value Measurement | Consumer Real Estate |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,319
|
13,707
|
| Estimate of Fair Value Measurement | Consumer Real Estate | Level 1 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Consumer Real Estate | Level 2 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Consumer Real Estate | Level 3 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
13,319
|
13,707
|
| Estimate of Fair Value Measurement | Credit card and other |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
550
|
558
|
| Estimate of Fair Value Measurement | Credit card and other | Level 1 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Credit card and other | Level 2 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
0
|
0
|
| Estimate of Fair Value Measurement | Credit card and other | Level 3 |
|
|
| Assets: |
|
|
| Loans and leases, net of allowance for loan and lease losses |
550
|
558
|
| Estimate of Fair Value Measurement | Mortgage loans (elected fair value) |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
88
|
151
|
| Estimate of Fair Value Measurement | Mortgage loans (elected fair value) | Level 1 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
0
|
0
|
| Estimate of Fair Value Measurement | Mortgage loans (elected fair value) | Level 2 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
74
|
137
|
| Estimate of Fair Value Measurement | Mortgage loans (elected fair value) | Level 3 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
14
|
14
|
| Estimate of Fair Value Measurement | USDA & SBA loans - LOCOM |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
393
|
233
|
| Estimate of Fair Value Measurement | USDA & SBA loans - LOCOM | Level 1 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
0
|
0
|
| Estimate of Fair Value Measurement | USDA & SBA loans - LOCOM | Level 2 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
393
|
233
|
| Estimate of Fair Value Measurement | USDA & SBA loans - LOCOM | Level 3 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
0
|
0
|
| Estimate of Fair Value Measurement | Mortgage loans - LOCOM |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
21
|
22
|
| Estimate of Fair Value Measurement | Mortgage loans - LOCOM | Level 1 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
0
|
0
|
| Estimate of Fair Value Measurement | Mortgage loans - LOCOM | Level 2 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
0
|
0
|
| Estimate of Fair Value Measurement | Mortgage loans - LOCOM | Level 3 |
|
|
| Short-term financial assets: |
|
|
| Loans held for sale: |
21
|
22
|
| Contractual Amount |
|
|
| Unfunded Commitments [Abstract] |
|
|
| Loan commitments |
23,217
|
21,676
|
| Standby and other commitments |
$ 822
|
$ 804
|