Regulatory matters (Tables)

12 Months Ended

Dec. 31, 2019

Banking And Thrift [Abstract]

Summary of Required Minimum and Well Capitalized Capital Ratios

Pursuant to the rules in effect as of December 31, 2019, the required minimum and well capitalized capital ratios are as follows:

				Well
	Minimum			Capitalized
●   Common equity Tier 1 ("CET1") to risk-weighted assets		4.5	%		6.5	%
●   Tier 1 capital to risk-weighted assets		6.0	%		8.0	%
●   Total capital to risk-weighted assets		8.0	%		10.0	%
●   Leverage — Tier 1 capital to average total assets, as defined		4.0	%		5.0	%

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, 2019 and 2018 are presented below:

	M&T (Consolidated)			M&T Bank			Wilmington Trust, N.A.
	(Dollars in thousands)
December 31, 2019:
Common equity Tier 1 capital
Amount	$	10,053,887		$	10,649,953		$	606,538
Ratio(a)		9.73	%		10.34	%		56.35	%
Tier 1 capital
Amount		11,303,836			10,649,953			606,538
Ratio(a)		10.94	%		10.34	%		56.35	%
Total capital
Amount		13,480,612			12,342,834			608,130
Ratio(a)		13.05	%		11.99	%		56.50	%
Leverage
Amount		11,303,836			10,649,953			606,538
Ratio(b)		9.59	%		9.08	%		13.12	%
December 31, 2018:
Common equity Tier 1 capital
Amount	$	9,960,811		$	10,636,136		$	585,767
Ratio(a)		10.13	%		10.84	%		60.69	%
Tier 1 capital
Amount		11,193,770			10,636,136			585,767
Ratio(a)		11.38	%		10.84	%		60.69	%
Total capital
Amount		13,454,137			12,475,296			589,671
Ratio(a)		13.68	%		12.72	%		61.10	%
Leverage
Amount		11,193,770			10,636,136			585,767
Ratio(b)		9.88	%		9.42	%		12.51	%

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

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