Borrowings (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Amounts and Interest Rates of Short-term Borrowings

The amounts and interest rates of short-term borrowings were as follows:

	Federal Funds Purchased and Repurchase Agreements			Other Short-term Borrowings			Total
	(Dollars in thousands)
At December 31, 2014
Amount outstanding	$	192,676			—		$	192,676
Weighted-average interest rate		0.07	%		—			0.07	%
For the year ended December 31, 2014
Highest amount at a month-end	$	280,350			—
Daily-average amount outstanding		214,736			—		$	214,736
Weighted-average interest rate		0.05	%		—			0.05	%
At December 31, 2013
Amount outstanding	$	260,455			—		$	260,455
Weighted-average interest rate		0.04	%		—			0.04	%
For the year ended December 31, 2013
Highest amount at a month-end	$	563,879			—
Daily-average amount outstanding		390,034			—		$	390,034
Weighted-average interest rate		0.11	%		—			0.11	%
At December 31, 2012
Amount outstanding	$	1,074,482			—		$	1,074,482
Weighted-average interest rate		0.11	%		—			0.11	%
For the year ended December 31, 2012
Highest amount at a month-end	$	1,224,194		$	50,016
Daily-average amount outstanding		822,859			16,043		$	838,902
Weighted-average interest rate		0.15	%		0.57	%		0.15	%

Lines of Credit Under Formal Agreements

At December 31, 2014, the Company had lines of credit under formal agreements as follows:

	M&T Bank		Wilmington Trust,  N.A.
	(In thousands)
Outstanding borrowings	$	1,161,475	$	—
Unused		19,825,036		275,414

Long-term Borrowings

Long-term borrowings were as follows:

	December 31,
	2014		2013
	(In thousands)
Senior notes of M&T Bank:
Variable rate due 2016	$	300,000	$	300,000
Variable rate due 2017		550,000		—
1.25% due 2017		499,969		—
1.40% due 2017		749,756		—
1.45% due 2018		503,118		502,479
2.25% due 2019		648,243		—
2.30% due 2019		748,965		—
Advances from FHLB:
Fixed rates		1,161,514		29,079
Agreements to repurchase securities		1,400,000		1,400,000
Subordinated notes of Wilmington Trust Corporation
(a wholly owned subsidiary of M&T):
8.50% due 2018		218,883		224,067
Subordinated notes of M&T Bank:
6.625% due 2017		428,627		437,582
9.50% due 2018		—		50,000
5.585% due 2020, variable rate commencing 2015		400,846		392,964
5.629% due 2021, variable rate commencing 2016		538,961		559,378
Junior subordinated debentures of M&T associated with preferred capital securities:
Fixed rates:
M&T Capital Trust I — 8.234%, due 2027		154,640		154,640
M&T Capital Trust II — 8.277%, due 2027		103,093		103,093
M&T Capital Trust III — 9.25%, due 2027		65,784		66,109
BSB Capital Trust I — 8.125%, due 2028		15,612		15,589
Provident Trust I — 8.29%, due 2028		25,405		25,051
Southern Financial Statutory Trust I — 10.60%, due 2030		6,550		6,521
M&T Capital Trust IV — 8.50%, due 2068		—		350,010
Variable rates:
First Maryland Capital I — due 2027		145,179		144,641
First Maryland Capital II — due 2027		146,627		145,964
Allfirst Asset Trust — due 2029		96,204		96,059
BSB Capital Trust III — due 2033		15,464		15,464
Provident Trust III — due 2033		52,692		52,176
Southern Financial Capital Trust III — due 2033		7,816		7,747
Other		23,011		30,257
	$	9,006,959	$	5,108,870

Maturity of Long-term Borrowings

Long-term borrowings at December 31, 2014 mature as follows:

	(In thousands)
Year ending December 31:
2015	$	6,444
2016		1,105,540
2017		3,407,786
2018		723,516
2019		1,971,842
Later years		1,791,831
	$	9,006,959