{"cik":36270,"taxonomy":"us-gaap","tag":"CommonStockDividendsPerShareDeclared","label":"Common Stock, Dividends, Per Share, Declared","description":"Aggregate dividends declared during the period for each share of common stock outstanding.","entityName":"M&T BANK CORP","units":{"USD/shares":[{"start":"2008-01-01","end":"2008-06-30","val":1.4,"accn":"0000950123-09-040810","fy":2009,"fp":"Q2","form":"10-Q/A","filed":"2009-09-03"},{"start":"2008-01-01","end":"2008-09-30","val":2.1,"accn":"0000950123-09-057789","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-05"},{"start":"2009-01-01","end":"2009-06-30","val":1.4,"accn":"0000950123-09-040810","fy":2009,"fp":"Q2","form":"10-Q/A","filed":"2009-09-03"},{"start":"2009-01-01","end":"2009-09-30","val":2.1,"accn":"0000950123-09-057789","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":2.8,"accn":"0001193125-12-075161","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-23","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2.8,"accn":"0001193125-12-075161","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-23","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2.8,"accn":"0001193125-13-071824","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":0.7,"accn":"0001193125-12-224923","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1.4,"accn":"0001193125-12-346904","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2011-01-01","end":"2011-06-30","val":1.4,"accn":"0001193125-12-347973","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-09"},{"start":"2011-01-01","end":"2011-09-30","val":2.1,"accn":"0001193125-12-454853","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":2.8,"accn":"0001193125-12-075161","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-23","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2.8,"accn":"0001193125-13-071824","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-25"},{"start":"2012-01-01","end":"2012-03-31","val":0.7,"accn":"0001193125-12-224923","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-10","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1.4,"accn":"0001193125-12-346904","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-09"},{"start":"2012-01-01","end":"2012-06-30","val":1.4,"accn":"0001193125-12-347973","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":2.1,"accn":"0001193125-12-454853","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":2.8,"accn":"0001193125-13-071824","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-25","frame":"CY2012"},{"start":"2022-01-01","end":"2022-12-31","val":4.8,"accn":"0001628280-25-006267","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-19","frame":"CY2022"},{"start":"2023-01-01","end":"2023-09-30","val":3.9,"accn":"0001628280-24-045198","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-05"},{"start":"2023-07-01","end":"2023-09-30","val":1.3,"accn":"0001628280-24-045198","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-05","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":5.2,"accn":"0001628280-25-006267","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-19"},{"start":"2023-01-01","end":"2023-12-31","val":5.2,"accn":"0000036270-26-000010","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-18","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1.3,"accn":"0001628280-25-022036","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-05","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":2.65,"accn":"0000036270-25-000011","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-04"},{"start":"2024-04-01","end":"2024-06-30","val":1.35,"accn":"0000036270-25-000011","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-04","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":4,"accn":"0001628280-24-045198","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-05"},{"start":"2024-01-01","end":"2024-09-30","val":4,"accn":"0000036270-25-000024","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-10-27"},{"start":"2024-07-01","end":"2024-09-30","val":1.35,"accn":"0001628280-24-045198","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-05"},{"start":"2024-07-01","end":"2024-09-30","val":1.35,"accn":"0000036270-25-000024","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-10-27","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":5.35,"accn":"0001628280-25-006267","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-19"},{"start":"2024-01-01","end":"2024-12-31","val":5.35,"accn":"0000036270-26-000010","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-18","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1.35,"accn":"0001628280-25-022036","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-05"},{"start":"2025-01-01","end":"2025-03-31","val":1.35,"accn":"0000036270-26-000034","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-05","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2.7,"accn":"0000036270-25-000011","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-04"},{"start":"2025-01-01","end":"2025-06-30","val":2.7,"accn":"0000036270-26-000050","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04"},{"start":"2025-04-01","end":"2025-06-30","val":1.35,"accn":"0000036270-25-000011","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-04"},{"start":"2025-04-01","end":"2025-06-30","val":1.35,"accn":"0000036270-26-000050","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":4.2,"accn":"0000036270-25-000024","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-10-27"},{"start":"2025-07-01","end":"2025-09-30","val":1.5,"accn":"0000036270-25-000024","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-10-27","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":5.7,"accn":"0000036270-26-000010","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-18","frame":"CY2025"},{"start":"2026-01-01","end":"2026-03-31","val":1.5,"accn":"0000036270-26-000034","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-05","frame":"CY2026Q1"},{"start":"2026-01-01","end":"2026-06-30","val":3,"accn":"0000036270-26-000050","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04"},{"start":"2026-04-01","end":"2026-06-30","val":1.5,"accn":"0000036270-26-000050","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-04","frame":"CY2026Q2"}]}}