Regulatory matters (Tables)

12 Months Ended

Dec. 31, 2015

Banking and Thrift [Abstract]

Capital Ratios and Amounts of Company and its Banking Subsidiaries

The capital ratios and amounts of the Company and its banking subsidiaries as of December 31, 2015 and 2014 are presented below:

	M&T (Consolidated)			M&T Bank			Wilmington Trust, N.A.
	(Dollars in thousands)
December 31, 2015:
Common equity Tier 1 capital
Amount	$	10,485,426		$	10,680,827		$	476,106
Ratio(a)		11.08	%		11.33	%		86.87	%
Minimum required amount(b)		4,259,977			4,242,817			24,664
Tier 1 capital
Amount		12,008,232			10,680,827			476,106
Ratio(a)		12.68	%		11.33	%		86.87	%
Minimum required amount(b)		5,679,969			5,657,089			32,886
Total capital
Amount		14,128,454			12,589,917			480,415
Ratio(a)		14.92	%		13.35	%		87.65	%
Minimum required amount(b)		7,573,292			7,542,786			43,848
Leverage
Amount		12,008,232			10,680,827			476,106
Ratio(c)		10.89	%		9.75	%		22.38	%
Minimum required amount(b)		4,408,971			4,381,617			85,082
December 31, 2014:
Tier 1 capital
Amount	$	9,644,765		$	8,043,185		$	435,558
Ratio(a)		12.47	%		10.46	%		57.22	%
Minimum required amount(b)		3,093,874			3,077,101			30,447
Total capital
Amount		11,767,308			10,048,277			439,867
Ratio(a)		15.21	%		13.06	%		57.79	%
Minimum required amount(b)		6,187,747			6,154,201			60,893
Leverage
Amount		9,644,765			8,043,185			435,558
Ratio(c)		10.17	%		8.56	%		9.98	%
Minimum required amount(b)		3,793,836			3,760,364			174,613

(a) The ratio of capital to risk-weighted assets, as defined by regulation.

(b) Minimum amount of capital to be considered adequately capitalized, as defined by regulation.

(c) The ratio of capital to average assets, as defined by regulation.