XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.26.1

Shareholders' equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2026
Equity [Abstract] |
Schedule of Preferred Stock | Issued and outstanding preferred stock of M&T as of June 30, 2026 and December 31, 2025 is presented below.
(Dollars in millions, except per share) | Shares Issued and Outstanding |  | Liquidation Preference Per Share |  | Issuance Date |  | Earliest Redemption Date |  | Annual Dividend Rate |  | Carrying Amount |  | Dividends Per Share |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Three Months Ended June 30, |  | Six Months Ended June 30, |  |
Series | June 30, 2026 |  | December 31, 2025 |  |  |  |  |  |  |  |  |  | June 30, 2026 |  | December 31, 2025 |  | 2026 |  | 2025 |  | 2026 |  | 2025 |  |
Series F (a) | 50,000 |  |  | 50,000 |  |  | $ | 10,000 |  |  | 10/28/2016 |  | 11/1/2026 |  | 5.125 | % |  | $ | 500 |  |  | $ | 500 |  |  | $ | 128.13 |  |  | $ | 128.13 |  |  | $ | 256.25 |  |  | $ | 256.25 |  |  |
Series G (b) | — |  | 40,000 |  | 10,000 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 400 |  |  | — |  |  | 182.60 |  |  | 182.60 |  |  | 365.20 |  |  |
Series H (c) | 10,000,000 |  | 10,000,000 |  | 25 |  |  | 4/1/2022 |  | 4/1/2027 |  | 5.625 |  |  | 261 |  |  | 261 |  |  | 0.35 |  |  | 0.35 |  |  | 0.70 |  |  | 0.70 |  |  |
Series I (d) | 50,000 |  | 50,000 |  | 10,000 |  |  | 8/17/2021 |  | 9/1/2026 |  | 3.500 |  |  | 500 |  |  | 500 |  |  | 87.50 |  |  | 87.50 |  |  | 175.00 |  |  | 175.00 |  |  |
Series J (e) | 75,000 |  | 75,000 |  | 10,000 |  |  | 5/13/2024 |  | 6/15/2029 |  | 7.500 |  |  | 733 |  |  | 733 |  |  | 187.50 |  |  | 187.50 |  |  | 375.00 |  |  | 375.00 |  |  |
Series K (f) | 45,000 |  | 45,000 |  | 10,000 |  |  | 10/31/2025 |  | 12/15/2030 |  | 6.350 |  |  | 440 |  |  | 440 |  |  | 158.75 |  |  | — |  |  | 317.50 |  |  | — |  |  |
Total | 10,220,000 |  | 10,260,000 |  |  |  |  |  |  |  |  |  | $ | 2,434 |  |  | $ | 2,834 |  |  |  |  |  |  |  |  |  |  |
__________________________________________________________________________________ (a)Dividends, if declared, are paid semi-annually at a rate of 5.125% through October 31, 2026 and thereafter will be paid quarterly at a rate of the three-month SOFR plus 378 basis points. (b)On February 1, 2026, M&T redeemed all outstanding shares of the Series G Preferred Stock at par value. (c)Dividends, if declared, are paid quarterly at a rate of 5.625% through December 14, 2026 and thereafter will be paid quarterly at a rate of the three-month SOFR rate plus 428 basis points. (d)Dividends, if declared, are paid semi-annually at a rate of 3.5% through August 31, 2026. On September 1, 2026 and at each subsequent five year anniversary date therefrom the dividend rate will reset at a rate of the five-year U.S. Treasury rate plus 2.679%. (e)Dividends, if declared, are paid quarterly at a rate of 7.5%. (f)Dividends, if declared, are paid quarterly at a rate of 6.35%.

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480070/505-10-S50-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-11 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-5 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480100/505-10-S45-3 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480100/505-10-S45-2 Reference 9: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-10 Reference 10: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 11: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 Reference 12: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-5 Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 15: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 16: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480657/210-10-S50-11 + Details
Name: | us-gaap_ScheduleOfStockByClassTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration