Borrowings (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021
Amount outstanding	$	47,046		$	—		$	47,046
Weighted-average interest rate		0.01	%		—			0.01	%
For the year ended December 31, 2021
Highest amount at a month-end	$	103,548		$	—
Daily-average amount outstanding		68,073			—		$	68,073
Weighted-average interest rate		0.01	%		—			0.01	%
At December 31, 2020
Amount outstanding	$	59,482		$	—		$	59,482
Weighted-average interest rate		0.01	%		—			0.01	%
For the year ended December 31, 2020
Highest amount at a month-end	$	82,893		$	—
Daily-average amount outstanding		61,551			—		$	61,551
Weighted-average interest rate		0.05	%		—			0.05	%
At December 31, 2019
Amount outstanding	$	62,363		$	—		$	62,363
Weighted-average interest rate		0.14	%		—			0.14	%
For the year ended December 31, 2019
Highest amount at a month-end	$	3,402,566		$	5,000,000
Daily-average amount outstanding		260,322			799,068		$	1,059,390
Weighted-average interest rate		1.86	%		2.49	%		2.34	%

Lines of Credit Under Formal Agreements

At December 31, 2021, M&T Bank had lines of credit under formal agreements as follows:

	(In thousands)
Outstanding borrowings	$	1,578
Unused		30,065,461

Long-term Borrowings

Long-term borrowings were as follows:

	December 31,
	2021		2020
	(In thousands)
Senior notes of M&T:
Variable rate due 2023	$	249,893	$	249,824
3.55% due 2023		516,173		533,369
Senior notes of M&T Bank:
Variable rate due 2021		—		349,992
Variable rate due 2022		249,961		249,858
2.50% due 2022		653,903		664,400
2.90% due 2025		749,740		749,656
Advances from FHLB:
Fixed rates		1,578		1,683
Subordinated notes of M&T Bank:
Variable rate due 2021		—		500,000
3.40% due 2027		522,867		552,194
Junior subordinated debentures of M&T associated with    preferred capital securities:
Fixed rates:
BSB Capital Trust I — 8.125%, due 2028		15,775		15,752
Provident Trust I — 8.29%, due 2028		30,103		29,099
Southern Financial Statutory Trust I — 10.60%, due 2030		6,912		6,836
Variable rates:
First Maryland Capital I — due 2027		148,945		148,409
First Maryland Capital II — due 2027		151,270		150,606
Allfirst Asset Trust — due 2029		97,220		97,075
BSB Capital Trust III — due 2033		15,464		15,464
Provident Statutory Trust III — due 2033		57,547		56,641
Southern Financial Capital Trust III — due 2033		8,448		8,338
Other		9,570		2,997
	$	3,485,369	$	4,382,193

Maturity of Long-term Borrowings

Long-term borrowings at December 31, 2021 mature as follows:

	(In thousands)
Year ending December 31:
2022	$	903,864
2023		766,136
2024		9,500
2025		749,740
2026		—
Later years		1,056,129
	$	3,485,369