Award Timing Disclosure |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Award Timing Disclosures [Line Items] | |
| Award Timing MNPI Disclosure | Equity Grant Practices. on-cycle equity awards are granted at the same time each year as part of our annual pay-for-performance Off-cycle equity awards are granted at month-end, as required by the Grant Policy. Under the Grant Policy, the C&HC Committee avoids granting equity awards during periods in which there is undisclosed material non-public information about M&T or during blackout periods as defined in M&T’s Insider Trading Policy. The C&HC Committee also does not grant equity awards in anticipation of the release of material, nonpublic information, and M&T does not time the release of material, nonpublic information based on equity award grant dates, vesting events or sale events. For all stock option awards, the exercise price is the closing price of our common stock on the NYSE on the date of the grant. If the grant date falls on a non-trading day, the exercise price is the closing price of our common stock on the NYSE on the last trading day preceding the date of grant. The exercise price for options is not less than 100% of the fair market value on the date of grant. During 2025, no equity awards were granted to our NEOs during the four business days prior to, or the one business day following, the filing of M&T’s periodic reports or the filing or furnishing of a Current Report on Form 8-K that disclosed material non-public information. |
| Award Timing MNPI Considered | false |
| Award Timing, How MNPI Considered | The C&HC Committee also does not grant equity awards in anticipation of the release of material, nonpublic information, and M&T does not time the release of material, nonpublic information based on equity award grant dates, vesting events or sale events. |
| MNPI Disclosure Timed for Compensation Value | false |