M&T Bank (MTB) 10-K 19 Feb 10 2009 FY Annual report Financial data

Document and Company Informatio

Document and Company Information (USD $)
	12 Months Ended Dec. 31, 2009	Feb. 11, 2010	Jun. 30, 2009
Document and Company Information [Abstract]
Entity Registrant Name	M&T BANK CORP
Entity Central Index Key	0000036270
Document Type	10-K
Document Period End Date	2009-12-31
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$3,984,009,945
Entity Common Stock, Shares Outstanding		118,680,444

Consolidated Balance Sheet

Consolidated Balance Sheet (USD $)
In Thousands	Dec. 31, 2009	Dec. 31, 2008
Assets
Cash and due from banks	$1,226,223	$1,546,804
Interest-bearing deposits at banks	133,335	10,284
Federal funds sold	20,119	21,347
Agreements to resell securities	0	90,000
Trading account	386,984	617,821
Investment securities (includes pledged securities that can be sold or repledged of $1,797,701 in 2009; $1,870,097 in 2008)
Available for sale (cost: $6,997,009 in 2009; $7,656,635 in 2008)	6,704,378	6,850,193
Held to maturity (fair value: $416,483 in 2009; $394,752 in 2008)	567,607	485,838
Other (fair value: $508,624 in 2009; $583,176 in 2008)	508,624	583,176
Total investment securities	7,780,609	7,919,207
Loans and leases	52,306,457	49,359,737
Unearned discount	(369,771)	(359,274)
Allowance for credit losses	(878,022)	(787,904)
Loans and leases, net	51,058,664	48,212,559
Premises and equipment	435,845	388,855
Goodwill	3,524,625	3,192,128
Core deposit and other intangible assets	182,418	183,496
Accrued interest and other assets	4,131,577	3,633,256
Total assets	68,880,399	65,815,757
Liabilities
Noninterest-bearing deposits	13,794,636	8,856,114
NOW accounts	1,396,471	1,141,308
Savings deposits	23,676,798	19,488,918
Time deposits	7,531,495	9,046,937
Deposits at foreign office	1,050,438	4,047,986
Total deposits	47,449,838	42,581,263
Federal funds purchased and agreements to repurchase securities	2,211,692	970,529
Other short-term borrowings	230,890	2,039,206
Accrued interest and other liabilities	995,056	1,364,879
Long-term borrowings	10,240,016	12,075,149
Total liabilities	61,127,492	59,031,026
Stockholders' equity
Preferred stock, $1.00 par, 1,000,000 shares authorized, 778,000 shares issued and outstanding in 2009; 600,000 shares issued and outstanding in 2008 (liquidation preference $1,000 per share)	730,235	567,463
Common stock, $.50 par, 250,000,000 shares authorized, 120,396,611 shares issued in 2009 and 2008	60,198	60,198
Common stock issuable, 75,170 shares in 2009; 78,447 shares in 2008	4,342	4,617
Additional paid-in capital	2,442,947	2,897,907
Retained earnings	5,076,884	5,062,754
Accumulated other comprehensive income (loss), net	(335,997)	(736,881)
Treasury stock - common, at cost - 2,173,916 shares in 2009; 10,031,302 shares in 2008	(225,702)	(1,071,327)
Total stockholders' equity	7,752,907	6,784,731
Total liabilities and stockholders' equity	$68,880,399	$65,815,757

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) (USD $)
In Thousands, except Share data	Dec. 31, 2009	Dec. 31, 2008
Assets
Pledged securities that can be sold or repledged	$1,797,701	$1,870,097
Investment securities, available for sale, cost	6,997,009	7,656,635
Investment securities, held to maturity, fair value	416,483	394,752
Investment securities, other fair value	$508,624	$583,176
Stockholders' equity
Preferred stock, par value	1	1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	778,000	600,000
Preferred stock, shares outstanding	778,000	600,000
Preferred stock, liquidation preference per share	1,000	1,000
Commmon stock, par value	0.5	0.5
Commmon stock, shares authorized	250,000,000	250,000,000
Commmon stock, shares issued	120,396,611	120,396,611
Common stock, issuable shares	75,170	78,447
Treasury stock - common, shares	2,173,916	10,031,302

Consolidated Statement of Incom

Consolidated Statement of Income (USD $)
In Thousands, except Per Share data	12 Months Ended Dec. 31, 2009	12 Months Ended Dec. 31, 2008	12 Months Ended Dec. 31, 2007
Interest income
Loans and leases, including fees	$2,326,748	$2,825,587	$3,155,967
Deposits at banks	34	109	300
Federal funds sold	63	254	857
Agreements to resell securities	66	1,817	22,978
Trading account	534	1,469	744
Investment securities
Fully taxable	389,268	438,409	352,628
Exempt from federal taxes	8,484	9,946	11,339
Total interest income	2,725,197	3,277,591	3,544,813
Interest expense
NOW accounts	1,122	2,894	4,638
Savings deposits	112,550	248,083	250,313
Time deposits	206,220	330,389	496,378
Deposits at foreign office	2,391	84,483	207,990
Short-term borrowings	7,129	142,627	274,079
Long-term borrowings	340,037	529,319	461,178
Total interest expense	669,449	1,337,795	1,694,576
Net interest income	2,055,748	1,939,796	1,850,237
Provision for credit losses	604,000	412,000	192,000
Net interest income after provision for credit losses	1,451,748	1,527,796	1,658,237
Other income
Mortgage banking revenues	207,561	156,012	111,893
Service charges on deposit accounts	469,195	430,532	409,462
Trust income	128,568	156,149	152,636
Brokerage services income	57,611	64,186	59,533
Trading account and foreign exchange gains	23,125	17,630	30,271
Gain on bank investment securities	1,165	34,471	1,204
Total other-than-temporary ("OTTI") losses	(264,363)	(182,222)	(127,300)
Portion of OTTI losses recognized in other comprehensive income (before taxes)	126,066	0	0
Net OTTI losses recognized in earnings	(138,297)	(182,222)	(127,300)
Equity in earnings of Bayview Lending Group LLC	(25,898)	(37,453)	8,935
Other revenues from operations	325,076	299,674	286,355
Total other income	1,048,106	938,979	932,989
Other expense
Salaries and employee benefits	1,001,873	957,086	908,315
Equipment and net occupancy	211,391	188,845	169,050
Printing, postage and supplies	38,216	35,860	35,765
Amortization of core deposit and other intangible assets	64,255	66,646	66,486
FDIC assessments	96,519	6,689	4,203
Other costs of operations	568,309	471,870	443,870
Total other expense	1,980,563	1,726,996	1,627,689
Income before taxes	519,291	739,779	963,537
Income taxes	139,400	183,892	309,278
Net income	379,891	555,887	654,259
Net income available to common shareholders	$332,006	$555,096	$654,259
Net income per common share
Basic	2.9	5.04	6.05
Diluted	2.89	5.01	5.95

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (USD $)
In Thousands	12 Months Ended Dec. 31, 2009	12 Months Ended Dec. 31, 2008	12 Months Ended Dec. 31, 2007
Cash flows from operating activities
Net income	$379,891	$555,887	$654,259
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	604,000	412,000	192,000
Depreciation and amortization of premises and equipment	64,398	53,422	48,742
Amortization of capitalized servicing rights	62,268	65,722	62,931
Amortization of core deposit and other intangible assets	64,255	66,646	66,486
Provision for deferred income taxes	82,501	(17,020)	(44,670)
Asset write-downs	171,225	190,079	139,779
Net gain on sales of assets	(88)	(24,961)	(5,495)
Net change in accrued interest receivable, payable	(38,920)	15,023	780
Net change in other accrued income and expense	(154,992)	(201,402)	(18,461)
Net change in loans originated for sale	(57,105)	471,543	305,138
Net change in trading account assets and liabilities	11,956	41,477	(66,732)
Net cash provided by operating activities	1,189,389	1,628,416	1,334,757
Proceeds from sales of investment securities
Available for sale	9,427	57,843	40,160
Other	137,577	115,207	19,361
Proceeds from maturities of investment securities
Available for sale	2,187,553	1,908,725	2,184,773
Held to maturity	125,466	92,343	46,781
Purchases of investment securities
Available for sale	(651,549)	(836,448)	(2,219,861)
Held to maturity	(37,453)	(198,418)	(39,588)
Other	(21,088)	(191,995)	(130,865)
Net (increase) decrease in agreements to resell securities	90,000	(90,000)	100,000
Net (increase) decrease in loans and leases	657,458	(2,873,642)	(4,074,220)
Other investments, net	(35,934)	(35,649)	(309,666)
Additions to capitalized servicing rights	(379)	(24,349)	(53,049)
Capital expenditures, net	(58,967)	(72,234)	(56,681)
Acquisitions, net of cash acquired
Banks and bank holding companies	202,993	0	(239,012)
Deposits and banking offices	0	0	(12,894)
Other, net	(103,409)	(115,142)	(37,906)
Net cash provided (used) by investing activities	2,501,695	(2,263,759)	(4,782,667)
Cash flows from financing activities
Net increase (decrease) in deposits	(528,964)	1,317,764	(1,036,502)
Net increase (decrease) in short-term borrowings	(745,251)	(2,811,736)	2,324,859
Proceeds from long-term borrowings	0	3,850,010	3,550,229
Payments on long-term borrowings	(2,390,182)	(2,216,978)	(528,515)
Purchases of treasury stock	0	0	(508,404)
Dividends paid - common	(325,706)	(308,501)	(281,900)
Dividends paid - preferred	(31,946)	0	0
Proceeds from issuance of preferred stock and warrants	0	600,000	0
Other, net	9,156	5,388	70,726
Net cash provided (used) by financing activities	(4,012,893)	435,947	3,590,493
Net increase (decrease) in cash and cash equivalents	(321,809)	(199,396)	142,583
Cash and cash equivalents at beginning of year	1,568,151	1,767,547	1,624,964
Cash and cash equivalents at end of year	1,246,342	1,568,151	1,767,547
Supplemental disclosure of cash flow information
Interest received during the year	2,748,880	3,374,219	3,545,094
Interest paid during the year	704,173	1,363,351	1,683,403
Income taxes paid (refunded) during the year	(19,549)	290,324	370,103
Securitization of residential mortgage loans allocated to
Available for sale investment securities	140,942	866,169	942,048
Capitalized servicing rights	788	8,455	7,873
Real estate acquired in settlement of loans	102,392	142,517	48,163
Investment securities available for sale transferred to held to maturity	0	298,108	0
Loans held for sale transferred to loans held for investment	0	0	870,759
Acquisitions, fair value of
Assets acquired (noncash)	6,581,433	0	3,744,853
Liabilities assumed	6,318,998	0	3,207,521
Preferred stock issued	155,779	0	0
Common stock issued	272,824	0	277,015
Common stock options	1,367	0	0
Common stock warrants	$6,467	$0	$0

Consolidated Statement of Chang

Consolidated Statement of Changes in Stockholders Equity (USD $)
In Thousands	Preferred stock	Common stock	Common stock issuable	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss), net	Treasury stock	Total
Begining Balance at Dec. 31, 2006		$60,198	$5,060	$2,889,449	$4,443,441	($53,574)	($1,063,479)	$6,281,095
Comprehensive income:
Net income					654,259			654,259
Other comprehensive income, net of tax and reclassification adjustments:
Unrealized gains (losses) on investment securities						(34,095)		(34,095)
Defined benefit plans liability adjustment						(18,222)		(18,222)
Unrealized losses on cash flow hedges						(8,931)		(8,931)
Acquisition of Provident Bankshares Corporation and Partners Trust Financial Group, Inc. in 2009 and 2007, respectively:
Common stock issued				(54,628)			331,643	277,015
Purchases of treasury stock							(508,404)	(508,404)
Stock option and purchase plans:
Compensation expense				49,824			1,605	51,429
Exercises				(35,397)			107,116	71,719
Directors' stock plan				63			1,278	1,341
Deferred compensation plans, net, including dividend equivalents			(284)	(559)	(215)		1,008	(50)
Common stock cash dividends - $2.80, $2.80 and $2.60 per share in 2009, 2008 and 2007, respectively					(281,900)			(281,900)
Ending Balance at Dec. 31, 2007		60,198	4,776	2,848,752	4,815,585	(114,822)	(1,129,233)	6,485,256
Comprehensive income:
Net income					555,887			555,887
Other comprehensive income, net of tax and reclassification adjustments:
Unrealized gains (losses) on investment securities						(497,262)		(497,262)
Defined benefit plans liability adjustment						(127,845)		(127,845)
Unrealized losses on terminated cash flow hedges						3,048		3,048
Issuance of preferred stock and associated warrants	567,463			32,537				600,000
Acquisition of Provident Bankshares Corporation and Partners Trust Financial Group, Inc. in 2009 and 2007, respectively:
Repayment of management stock ownership program receivable				72				72
Stock option and purchase plans:
Compensation expense				46,025			3,602	49,627
Exercises				(28,543)			51,548	23,005
Directors' stock plan				(450)			1,797	1,347
Deferred compensation plans, net, including dividend equivalents			(159)	(486)	(217)		959	97
Common stock cash dividends - $2.80, $2.80 and $2.60 per share in 2009, 2008 and 2007, respectively					(308,501)			(308,501)
Ending Balance at Dec. 31, 2008	567,463	60,198	4,617	2,897,907	5,062,754	(736,881)	(1,071,327)	6,784,731
Comprehensive income:
Net income					379,891			379,891
Other comprehensive income, net of tax and reclassification adjustments:
Unrealized gains (losses) on investment securities						337,043		337,043
Defined benefit plans liability adjustment						57,284		57,284
Unrealized losses on terminated cash flow hedges						6,557		6,557
Acquisition of Provident Bankshares Corporation and Partners Trust Financial Group, Inc. in 2009 and 2007, respectively:
Preferred stock issued	155,779							155,779
Common stock issued				(348,080)			620,904	272,824
Common stock options				1,367				1,367
Common stock warrants				6,467				6,467
Issuance of common stock to defined benefit pension plan				(51,417)			95,706	44,289
Preferred stock cash dividends					(31,946)			(31,946)
Amortization of preferred stock discount	6,993				(6,993)
Repayment of management stock ownership program receivable				195				195
Stock option and purchase plans:
Compensation expense				(21,773)			75,278	53,505
Exercises				(39,936)			50,170	10,234
Directors' stock plan				(1,280)			2,531	1,251
Deferred compensation plans, net, including dividend equivalents			(275)	(503)	(205)		1,036	53
Common stock cash dividends - $2.80, $2.80 and $2.60 per share in 2009, 2008 and 2007, respectively					(326,617)			(326,617)
Ending Balance at Dec. 31, 2009	$730,235	$60,198	$4,342	$2,442,947	$5,076,884	($335,997)	($225,702)	$7,752,907

1_Consolidated Statement of Cha

Consolidated Statement of Changes in Stockholders Equity (Parenthetical) (Retained earnings, USD $)
	Total
Common stock per share dividend amount	2.6
Common stock per share dividend amount	2.8
Common stock per share dividend amount	2.8

Significant accounting policies

Significant accounting policies
	12 Months Ended Dec. 31, 2009 USD / shares
Significant accounting policies [Abstract]
Significant accounting policies	1. Significant accounting policies MT Bank Corporation (MT) is a bank holding company headquartered in Buffalo, New York. Through subsidiaries, MT provides individuals, corporations and other businesses, and institutions with commercial and retail banking services, including loans and deposits, trust, mortgage banking, asset management, insurance and other financial services. Banking activities are largely focused on consumers residing in New York State, Pennsylvania, Maryland, Virginia and the District of Columbia and on small and medium-size businesses based in those areas. Banking services are also provided in Delaware, West Virginia and New Jersey, while certain subsidiaries also conduct activities in other states. The accounting and reporting policies of MT and subsidiaries (the Company) conform to generally accepted accounting principles (GAAP) and to general practices within the banking industry. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Subsequent events have been evaluated for their potential impact in the financial statements through February19, 2010, which is the date the financial statements were issued. The more significant accounting policies are as follows: Consolidation The consolidated financial statements include MT and all of its subsidiaries. All significant intercompany accounts and transactions of consolidated subsidiaries have been eliminated in consolidation. The financial statements of MT included in note26 report investments in subsidiaries under the equity method. Information about some limited purpose entities that are affiliates of the Company but are not included in the consolidated financial statements appears in note19. Consolidated Statement of Cash Flows For purposes of this statement, cash and due from banks and federal funds sold are considered cash and cash equivalents. Securities purchased under agreements to resell and securities sold under agreements to repurchase Securities purchased under agreements to resell and securities sold under agreements to repurchase are treated as collateralized financing transactions and are recorded at amounts equal to the cash or other consideration exchanged. It is generally the Companys policy to take possession of collateral pledged to secure agreements to resell. Trading account Financial instruments used for trading purposes are stated at fair value. Realized gains and losses and unrealized changes in fair value of financial instruments utilized in trading activities are included in trading account and foreign exchange gains in the consolidated statement of income. Investment securities Investments in debt securities are classified as held to maturity and stated at amortized cost when management has the positive intent and ability to hold such securiti

Acquisitions

Acquisitions
	12 Months Ended Dec. 31, 2009 USD / shares
Acquisitions [Abstract]
Acquisitions	2. Acquisitions On August28, 2009, MT Bank, MTs principal banking subsidiary, entered into a purchase and assumption agreement with the Federal Deposit Insurance Corporation (FDIC) to assume all of the deposits and acquire certain assets of Bradford Bank (Bradford), Baltimore, Maryland. As part of the transaction, MT Bank entered into a loss-share arrangement with the FDIC whereby MT Bank will be reimbursed by the FDIC for most losses it incurs on the acquired loan portfolio. The transaction has been accounted for using the acquisition method of accounting and, accordingly, assets acquired and liabilities assumed were recorded at estimated fair value on the acquisition date. Assets acquired totaled approximately $469million, including $302million of loans, and liabilities assumed aggregated $440million, including $361million of deposits. In accordance with GAAP, MT Bank recorded an after-tax gain on the transaction of $18million ($29million before taxes). There was no goodwill or other intangible assets recorded in connection with this transaction. The Bradford acquisition transaction did not have a material impact on the Companys consolidated financial position or results of operations. On May23, 2009, MT acquired all of the outstanding common stock of Provident Bankshares Corporation (Provident), a bank holding company based in Baltimore, Maryland, in a stock-for-stock transaction. Provident Bank, Providents banking subsidiary, was merged into MT Bank on that date. The results of operations acquired in the Provident transaction have been included in the Companys financial results since May23, 2009. Provident common shareholders received .171625shares of MT common stock in exchange for each share of Provident common stock, resulting in MT issuing a total of 5,838,308 common shares with an acquisition date fair value of $273million. In addition, based on the merger agreement, outstanding and unexercised options to purchase Provident common stock were converted into options to purchase the common stock of MT. Those options had an estimated fair value of $1million. In total, the purchase price was approximately $274million based on the fair value on the acquisition date of MT common stock exchanged and the options to purchase MT common stock. Holders of Providents preferred stock were issued shares of new SeriesB and SeriesC Preferred Stock of MT having substantially identical terms. That preferred stock and warrants to purchase common stock associated with the SeriesC Preferred Stock added $162million to MTs stockholders equity. The Provident transaction has been accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date. Assets acquired totaled $6.3billion, including $4.0billion of loans and leases (including approximately $1.7billion of commercial real estate loans, $1.4billion of consumer loans, $700million of commercial loans and leases and $300million of residential real estate loans) and $1.0billion of investment securities. Liabilities assumed were $5.9billion, including

Investment securities

Investment securities
	12 Months Ended Dec. 31, 2009 USD / shares
Investment securities [Abstract]
Investment securities	3. Investment securities The amortized cost and estimated fair value of investment securities were as follows: Gross Gross Amortized Unrealized Unrealized Estimated Cost Gains Losses Fair Value (In thousands) December31, 2009 Investment securities available for sale: U.S. Treasury and federal agencies $ 102,755 $ 1,988 $ 57 $ 104,686 Obligations of states and political subdivisions 61,468 1,583 128 62,923 Mortgage-backed securities: Government issued or guaranteed 3,777,642 131,407 6,767 3,902,282 Privately issued residential 2,438,353 9,630 383,079 2,064,904 Privately issued commercial 33,133 7,967 25,166 Collateralized debt obligations 103,159 23,389 11,202 115,346 Other debt securities 309,514 16,851 58,164 268,201 Equity securities 170,985 5,590 15,705 160,870 6,997,009 190,438 483,069 6,704,378 Investment securities held to maturity: Obligations of states and political subdivisions 203,825 1,419 1,550 203,694 Privately issued mortgage-backed securities 352,195 150,993 201,202 Other debt securities 11,587 11,587 567,607 1,419 152,543 416,483 Other securities 508,624 508,624 Total $ 8,073,240 $ 191,857 $ 635,612 $ 7,629,485 December31, 2008 Investment securities available for sale: U.S. Treasury and federal agencies $ 290,893 $ 6,203 $ 383 $ 296,713 Obligations of states and political subdivisions 70,425 1,641 303 71,763 Mortgage-backed securities: Government issued or guaranteed 3,525,196 93,578 5,994 3,612,780 Privately issued residential 3,104,209 484 778,139 2,326,554 Privately issued commercial 49,231 8,185 41,046 Collateralized debt obligations 18,088 15,592

Loans and leases

Loans and leases
	12 Months Ended Dec. 31, 2009 USD / shares
Loans and leases [Abstract]
Loans and leases	4. Loans and leases Total gross loans and leases outstanding were comprised of the following: December31 2009 2008 (In thousands) Loans Commercial, financial, agricultural, etc. $ 11,913,437 $ 12,848,070 Real estate: Residential 5,401,932 4,675,065 Commercial 16,345,601 14,548,938 Construction 4,726,570 4,568,368 Consumer 12,041,617 11,004,275 Total loans 50,429,157 47,644,716 Leases Commercial 1,877,300 1,715,021 Total loans and leases $ 52,306,457 $ 49,359,737 One-to-four family residential mortgage loans held for sale were $530million at December31, 2009 and $352million at December31, 2008. Commercial mortgage loans held for sale were $123million at December31, 2009 and $156million at December31, 2008. As of December31, 2009, approximately $16million of one-to-four family residential mortgage loans serviced for others had been sold with credit recourse. As of December31, 2009, approximately $1.3billion of commercial mortgage loan balances serviced for others had been sold with recourse in conjunction with the Companys participation in the Fannie Mae Delegated Underwriting and Servicing (DUS) program. At December31, 2009 the Company estimated that the recourse obligations described above were not material to the Companys consolidated financial position. There have been no material losses incurred as a result of those credit recourse arrangements. Nonaccrual loans totaled $1,331,702,000 at December31, 2009 and $755,397,000 at December31, 2008. Renegotiated loans (loans which had been renegotiated at below-market interest rates or for which other concessions were granted, but are accruing interest) were $212,548,000 and $91,575,000 at December31, 2009 and 2008, respectively. During 2009 and 2008, to assist borrowers the Company modified the terms of select residential real estate loans consisting largely of loans in the Companys portfolio of Alt-A loans. At December31, 2009, outstanding balances of those modified loans totaled approximately $292million. Of that total, $108million were included in nonaccrual loans at December31, 2009. The remaining $184million of such modified loans have demonstrated payment capability consistent with the modified terms and accordingly, were classified as renegotiated loans and were accruing interest at the 2009year-end. If nonaccrual and renegotiated loans had been accruing interest at their originally contracted terms, interest income on such loans would have amounted to $99,618,000 in 2009 and $61,666,000 in 2008. The actual amounts included in interest income during 2009 and 2008 on such loans were $43,920,000 and $36,747,000, respectively. The recorded investment in loans considered impaired for purposes of applying GAAP was $1,311,616,000 and $616,743,000 at December31, 2009

Allowance for credit losses

Allowance for credit losses
	12 Months Ended Dec. 31, 2009 USD / shares
Allowance for credit losses [Abstract]
Allowance for credit losses	5. Allowance for credit losses Changes in the allowance for credit losses were as follows: Year Ended December31 2009 2008 2007 (In thousands) Beginning balance $ 787,904 $ 759,439 $ 649,948 Provision for credit losses 604,000 412,000 192,000 Allowance obtained through acquisitions 32,668 Allowance related to loans sold or securitized (525 ) (1,422 ) Net charge-offs Charge-offs (556,462 ) (420,655 ) (146,298 ) Recoveries 42,580 37,645 32,543 Net charge-offs (513,882 ) (383,010 ) (113,755 ) Ending balance $ 878,022 $ 787,904 $ 759,439

Premises and equipment

Premises and equipment
	12 Months Ended Dec. 31, 2009 USD / shares
Premises and equipment [Abstract]
Premises and equipment	6. Premises and equipment The detail of premises and equipment was as follows: December31 2009 2008 (In thousands) Land $ 63,961 $ 55,081 Buildings owned 271,181 259,290 Buildings capital leases 1,131 1,598 Leasehold improvements 165,110 142,463 Furniture and equipment owned 345,421 311,379 Furniture and equipment capital leases 1,317 846,804 771,128 Less: accumulated depreciation and amortization Owned assets 410,218 380,219 Capital leases 741 2,054 410,959 382,273 Premises and equipment, net $ 435,845 $ 388,855 Net lease expense for all operating leases totaled $89,030,000 in 2009, $73,886,000 in 2008 and $65,014,000 in 2007. Minimum lease payments under noncancelable operating leases are presented in note21. Minimum lease payments required under capital leases are not material.

Capitalized servicing assets

Capitalized servicing assets
	12 Months Ended Dec. 31, 2009 USD / shares
Capitalized servicing assets [Abstract]
Capitalized servicing assets	7. Capitalized servicing assets Changes in capitalized servicing assets were as follows: Small-Balance Residential Mortgage Loans Commercial Mortgage Loans For Year Ended December 31, 2009 2008 2007 2009 2008 2007 (In thousands) Beginning balance $ 106,979 $ 118,763 $ 127,025 $ 58,044 $ 56,956 $ 35,767 Originations 31,034 17,765 12,145 Purchases 972 3,322 15,000 20,974 35,795 Assumed in loan securitizations (note19) 788 8,455 7,873 Amortization (38,618 ) (41,326 ) (43,280 ) (17,793 ) (19,886 ) (14,606 ) 101,155 106,979 118,763 40,251 58,044 56,956 Valuation allowance (50 ) (22,000 ) (6,000 ) Ending balance, net $ 101,105 $ 84,979 $ 112,763 $ 40,251 $ 58,044 $ 56,956 Commercial Mortgage Loans Total For Year Ended December 31, 2009 2008 2007 2009 2008 2007 (In thousands) Beginning balance $ 26,336 $ 20,240 $ 20,721 $ 191,359 $ 195,959 $ 183,513 Originations 12,417 10,606 4,564 43,451 28,371 16,709 Purchases 972 24,296 50,795 Assumed in loan securitizations (note19) 788 8,455 7,873 Amortization (5,857 ) (4,510 ) (5,045 ) (62,268 ) (65,722 ) (62,931 ) 32,896 26,336 20,240 174,302 191,359 195,959 Valuation allowance (50 ) (22,000 ) (6,000 ) Ending balance, net $ 32,896 $ 26,336 $ 20,240 $ 174,252 $ 169,359 $ 189,959 Residential mortgage loans serviced for others were $15.9billion, $15.4billion and $14.5billion at December31, 2009, 2008 and 2007, respectively. Small-balance commercial mortgage loans serviced for others were $5.5billion, $5.9billion and $4.9billion

Goodwill and other intangible a

Goodwill and other intangible assets
	12 Months Ended Dec. 31, 2009 USD / shares
Goodwill and other intangible assets [Abstract]
Goodwill and other intangible assets	8. Goodwill and other intangible assets In accordance with GAAP, the Company does not amortize goodwill, however, core deposit and other intangible assets are amortized over the estimated life of each respective asset. Total amortizing intangible assets were comprised of the following: Gross Carrying Accumulated Net Carrying Amount Amortization Amount (In thousands) December31, 2009 Core deposit $ 701,000 $ 524,358 $ 176,642 Other 118,366 112,590 5,776 Total $ 819,366 $ 636,948 $ 182,418 December31, 2008 Core deposit $ 637,823 $ 467,528 $ 170,295 Other 118,366 105,165 13,201 Total $ 756,189 $ 572,693 $ 183,496 Amortization of core deposit and other intangible assets was generally computed using accelerated methods over original amortization periods of five to ten years. The weighted-average original amortization period was approximately eight years. The remaining weighted-average amortization period as of December31, 2009 was approximately six years. Amortization expense for core deposit and other intangible assets was $64,255,000, $66,646,000 and $66,486,000 for the years ended December31, 2009, 2008 and 2007, respectively. Estimated amortization expense in future years for such intangible assets is as follows: (In thousands) Year ending December 31: 2010 $ 57,569 2011 41,605 2012 32,134 2013 24,072 2014 16,109 Later years 10,929 $ 182,418 Also in accordance with GAAP, the Company completed annual goodwill impairment tests as of October1, 2009, 2008 and 2007. For purposes of testing for impairment, the Company assigned all recorded goodwill to the reporting units originally intended to benefit from past business combinations, which has historically been the Companys core relationship business reporting units. Goodwill was generally assigned based on the implied fair value of the acquired goodwill applicable to the benefited reporting units at the time of each respective acquisition. The implied fair value of the goodwill was determined as the difference between the estimated incremental overall fair value of the reporting unit and the estimated fair value of the net assets assigned to the reporting unit as of each respective acquisition date. To test for goodwill impairment at each evaluation date, the Company compared the estimated fair value of each of its reporting units to their respective carrying amounts and certain other assets and liabilities assigned to the reporting unit, including goodwill and core deposit and other intangible assets. The methodologies used to estimate fa

Borrowings

Borrowings
	12 Months Ended Dec. 31, 2009 USD / shares
Borrowings [Abstract]
Borrowings	9. Borrowings The amounts and interest rates of short-term borrowings were as follows: Federal Funds Purchased and Other Repurchase Short-term Agreements Borrowings Total (Dollars in thousands) At December31, 2009 Amount outstanding $ 2,211,692 $ 230,890 $ 2,442,582 Weighted-average interest rate 0.04 % 0.66 % 0.10 % For the year ended December31, 2009 Highest amount at a month-end $ 2,491,573 $ 2,049,727 Daily-average amount outstanding 1,885,464 1,025,601 $ 2,911,065 Weighted-average interest rate 0.15 % 0.42 % 0.24 % At December31, 2008 Amount outstanding $ 970,529 $ 2,039,206 $ 3,009,735 Weighted-average interest rate 0.10 % 0.36 % 0.27 % For the year ended December31, 2008 Highest amount at a month-end $ 5,291,846 $ 2,039,206 Daily-average amount outstanding 4,652,388 1,433,734 $ 6,086,122 Weighted-average interest rate 2.15 % 2.97 % 2.34 % At December31, 2007 Amount outstanding $ 4,351,313 $ 1,470,584 $ 5,821,897 Weighted-average interest rate 3.12 % 4.65 % 3.50 % For the year ended December31, 2007 Highest amount at a month-end $ 4,351,313 $ 1,470,584 Daily-average amount outstanding 4,745,137 640,694 $ 5,385,831 Weighted-average interest rate 5.06 % 5.31 % 5.09 % In general, federal funds purchased and short-term repurchase agreements outstanding at December31, 2009 matured on the next business day following year-end. Other short-term borrowings at December31, 2009 included $152million of borrowings from the FHLB of Atlanta that mature within one year. There were $1.0billion of similar borrowings from the FHLB of New York at December31, 2008. Other short-term borrowings at December31, 2008 also included $1.0billion of secured borrowings from the Federal Reserve Bank of New York through their Term Auction Facility. The remaining borrowings included in other short-term borrowings had original maturities of one year or less and included borrowings from the U.S.Treasury and others. At December31, 2009, the Company had lines of credit under formal agreements as follows: MT MT MT Bank Bank, N.A. (In thousands) Outstanding borrowings $ $ 5,370,917 $ Unused 30,000 8,040,605 112,787

Stockholders equity

Stockholders equity
	1/1/2009 - 12/31/2009 USD / shares
Stockholders' equity [Abstract]
Stockholders' equity	10. Stockholders equity MT is authorized to issue 1,000,000shares of preferred stock with a $1.00par value per share. Preferred shares outstanding rank senior to common shares both as to dividends and liquidation preference, but have no general voting rights. Issued and outstanding preferred stock of MT is presented below: Shares Carrying Carrying Issued and Value Value Outstanding December31, 2009 December31, 2008 (Dollars in thousands) SeriesA(a) Fixed Rate Cumulative Perpetual Preferred Stock, SeriesA, $1,000 liquidation preference per share, 600,000shares authorized 600,000 $ 572,580 $ 567,463 SeriesB(b) SeriesB Mandatory Convertible Non-cumulative Preferred Stock, $1,000 liquidation preference per share, 26,500shares authorized 26,500 26,500 SeriesC(a)(c) Fixed Rate Cumulative Perpetual Preferred Stock, SeriesC, $1,000 liquidation preference per share, 151,500shares authorized 151,500 131,155 (a) Shares were issued as part of the Troubled Asset Relief Program Capital Purchase Program of the U.S. Department of Treasury (U.S. Treasury). Cash proceeds were allocated between the preferred stock and a ten-year warrant to purchase MT common stock (SeriesA 1,218,522common shares at $73.86 per share, SeriesC 407,542common shares at $55.76 per share). Dividends, if declared, will accrue and be paid quarterly at a rate of 5% per year for the first five years following the original 2008 issuance dates and thereafter at a rate of 9% per year. The agreement with the U.S. Treasury contains limitations on certain actions of MT, including the payment of quarterly cash dividends on MTs common stock in excess of $.70 per share, the repurchase of its common stock during the first three years of the agreement, and the amount and nature of compensation arrangements for certain of the Companys officers. (b) Shares were assumed in the Provident acquisition and a new SeriesB Preferred Stock was designated. In the aggregate, the shares of SeriesB Preferred Stock will automatically convert into 433,148shares of MT common stock on April1, 2011, but shareholders may elect to convert their preferred shares at any time prior to that date. Dividends, if declared, are payable quarterly in arrears at a rate of 10% per year. (c) Shares were assumed in the Provident acquisition and a new SeriesC Preferred Stock was designated.

Stock-based compensation plans

Stock-based compensation plans
	12 Months Ended Dec. 31, 2009 USD / shares
Stock-based compensation plans [Abstract]
Stock-based compensation plans	11. Stock-based compensation plans Stock-based compensation expense was $54million in 2009, $50million in 2008 and $51million in 2007. The Company recognized $17million, $11million and $12million in 2009, 2008 and 2007, respectively, of income tax benefits related to stock-based compensation. The Companys equity incentive compensation plan allows for the issuance of various forms of stock-based compensation, including stock options, restricted stock, restricted stock units and performance-based awards. Through December31, 2009, only stock-based compensation awards, including stock options, restricted stock and restricted stock units, that vest with the passage of time as service is provided have been issued. At December31, 2009 and 2008, respectively, there were 6,134,264 and 3,108,342shares available for future grant under the Companys equity incentive compensation plan. Stock option awards Stock options issued generally vest over four years and are exercisable over terms not exceeding ten years and one day. The Company used an option pricing model to estimate the grant date present value of stock options granted. The weighted-average estimated grant date value per option was $5.74 in 2009, $15.85 in 2008 and $28.59 in 2007. The values were calculated using the following weighted-average assumptions: an option term of 6.5years (representing the estimated period between grant date and exercise date based on historical data); a risk-free interest rate of 2.76% in 2009, 3.21% in 2008 and 4.79% in 2007 (representing the yield on a U.S.Treasury security with a remaining term equal to the expected option term); expected volatility of 29% in 2009, and 21% in each of 2008 and 2007 (based on historical volatility of MTs common stock price); and estimated dividend yields of 7.20% in 2009, 3.07% in 2008 and 1.98% in 2007 (representing the approximate annualized cash dividend rate paid with respect to a share of common stock at or near the grant date). Based on historical data and projected employee turnover rates, the Company reduced the estimated value of stock options for purposes of recognizing stock-based compensation expense by 7% to reflect the probability of forfeiture prior to vesting. Aggregate fair value of options expected to vest that were granted in 2009, 2008 and 2007 were $340,000, $46million and $48million, respectively. A summary of stock option activity follows: Stock Weighted-Average Aggregate Options Exercise Life Intrinsic Value Outstanding Price (In Years) (In Thousands) Outstanding at January1, 2009 13,029,399 $ 90.42 Granted 59,253 38.91 Acquired 626,433 131.96 Exercised (592,500 ) 42.55 Cancelled (119,873 ) 102.60 Expired (822,695 ) 91.41 Outstanding at De

Pension plans and other postret

Pension plans and other postretirement benefits
	12 Months Ended Dec. 31, 2009 USD / shares
Pension plans and other postretirement benefits [Abstract]
Pension plans and other postretirement benefits	12. Pension plans and other postretirement benefits The Company provides pension (defined benefit and defined contribution plans) and other postretirement benefits (including defined benefit health care and life insurance plans) to qualified retired employees. The Company uses a December 31 measurement date for all of its plans. Net periodic pension expense for defined benefit plans consisted of the following: Year Ended December31 2009 2008 2007 (In thousands) Service cost $ 19,483 $ 19,409 $ 21,138 Interest cost on benefit obligation 46,107 42,544 38,120 Expected return on plan assets (46,976 ) (46,092 ) (40,152 ) Amortization of prior service cost (6,559 ) (6,559 ) (6,559 ) Recognized net actuarial loss 8,292 3,942 5,993 Net periodic pension expense $ 20,347 $ 13,244 $ 18,540 Net other postretirement benefits expense for defined benefit plans consisted of the following: Year Ended December31 2009 2008 2007 (In thousands) Service cost $ 353 $ 559 $ 596 Interest cost on benefit obligation 3,302 4,033 3,811 Amortization of prior service cost 243 275 170 Recognized net actuarial loss (19 ) 42 359 Net other postretirement benefits expense $ 3,879 $ 4,909 $ 4,936 Data relating to the funding position of the defined benefit plans were as follows: Other Pension Benefits Postretirement Benefits 2009 2008 2009 2008 (In thousands) Change in benefit obligation: Benefit obligation at beginning of year $ 750,913 $ 740,464 $ 62,950 $ 71,150 Service cost 19,483 19,409 353 559 Interest cost 46,107 42,544 3,302 4,033 Plan participants contributions 3,138 2,639 Actuarial (gain) loss 26,694 (12,483 ) (5,209 ) (5,342 ) Settlements/curtailments (7,232 ) Business combinations 58,239 343 Medicare PartD reimbursement 870 114 Benefits paid (37,082 ) (39,021 ) (9,172 ) (10,203 ) Benefit obligation at end of year 857,122 750,913 56,575 62,950

Income taxes

Income taxes
	12 Months Ended Dec. 31, 2009 USD / shares
Income taxes [Abstract]
Income taxes	13. Income taxes The components of income tax expense (benefit) were as follows: Year Ended December31 2009 2008 2007 (In thousands) Current Federal $ 52,792 $ 231,426 $ 321,604 State and city 4,107 (30,514 ) 32,344 Total current 56,899 200,912 353,948 Deferred Federal 67,372 (10,095 ) (40,707 ) State and city 15,129 (6,925 ) (3,963 ) Total deferred 82,501 (17,020 ) (44,670 ) Total income taxes applicable to pre-tax income $ 139,400 $ 183,892 $ 309,278 Total current income taxes for 2009 reflect a $10million reversal of taxes accrued in earlier periods for previously uncertain tax positions in various jurisdictions because the applicable income tax returns are no longer subject to further examination by taxing authorities. Total current income taxes for 2008 reflect the resolution of previously uncertain tax positions related to the Companys activities in various jurisdictions during the years 1999-2007 that allowed the Company to reduce previously accrued income taxes by $40million. The Company files a consolidated federal income tax return reflecting taxable income earned by all subsidiaries. In prior years, applicable federal tax law allowed certain financial institutions the option of deducting as bad debt expense for tax purposes amounts in excess of actual losses. In accordance with GAAP, such financial institutions were not required to provide deferred income taxes on such excess. Recapture of the excess tax bad debt reserve established under the previously allowed method will result in taxable income if MT Bank fails to maintain bank status as defined in the Internal Revenue Code or charges are made to the reserve for other than bad debt losses. At December31, 2009, MT Banks tax bad debt reserve for which no federal income taxes have been provided was $79,121,000. No actions are planned that would cause this reserve to become wholly or partially taxable. Income taxes attributable to gains or losses on bank investment securities were benefits of $53,824,000, $57,859,000 and $49,308,000 in 2009, 2008 and 2007, respectively. No alternative minimum tax expense was recognized in 2009, 2008 or 2007. Total income taxes differed from the amount computed by applying the statutory federal income tax rate to pre-tax income as follows: Year Ended December31 2009 2008 2007 (In thousands) Income taxes at statutory rate $ 181,752 $ 258,923 $ 337,238 Increase (decrease) in taxes: Tax-exempt income (31,071 ) (31,668 )

Earnings per common share

Earnings per common share
	12 Months Ended Dec. 31, 2009 USD / shares
Earnings per common share [Abstract]
Earnings per common share	14. Earnings per common share The computations of basic earnings per common share follow: Year Ended December31 2009 2008 2007 (In thousands, except per share) Income available to common stockholders: Net income $ 379,891 $ 555,887 $ 654,259 Less: Preferred stock dividends(a) (36,081 ) (667 ) Amortization of preferred stock discount(a) (8,130 ) (124 ) Income attributable to unvested stock-based compensation awards (3,674 ) Net income available to common stockholders $ 332,006 $ 555,096 $ 654,259 Weighted-average shares outstanding: Common shares outstanding (including common stock issuable) and unvested stock-based compensation awards 115,838 110,211 108,129 Less: Unvested stock-based compensation awards (1,178 ) Weighted-average shares outstanding 114,660 110,211 108,129 Basic earnings per common share $ 2.90 $ 5.04 $ 6.05 (a) Including impact of not as yet declared cumulative dividends. The computations of diluted earnings per common share follow: Year Ended December31 2009 2008 2007 (In thousands, except per share) Net income available to common stockholders $ 332,006 $ 555,096 $ 654,259 Adjusted weighted-average shares outstanding: Common and unvested stock-based compensation awards 115,838 110,211 108,129 Less: Unvested stock-based compensation awards (1,178 ) Plus: Incremental shares from assumed conversion of stock-based compensation awards and convertible preferred stock 116 693 1,883 Adjusted weighted-average shares outstanding 114,776 110,904 110,012 Diluted earnings per common share $ 2.89 $ 5.01 $ 5.95 GAAP requires that for financial statements issued for fiscal years beginning after December15, 2008 and interim periods within those years, unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per common share pursuant to the two-class method. In 2009, the Company issued stock-based compensation awards in the form of restricted stock and restricted stock units, which, in accordance with GAAP, are considered participating securities. Beginning in 2009, the Companys earnings per common share are calculated using the two-class method. The effects of the application of the two-class method to previously repo

Comprehensive income

Comprehensive income
	12 Months Ended Dec. 31, 2009 USD / shares
Comprehensive income [Abstract]
Comprehensive income	15. Comprehensive income The following table displays the components of other comprehensive income: Before-tax Income Amount Taxes Net (In thousands) For the year ended December31, 2009 Unrealized gains (losses) on investment securities: Available-for-sale (AFS) investment securities with other-than-temporary impairment (OTTI): Securities with OTTI charges $ (264,363 ) $ 103,409 $ (160,954 ) Less: OTTI charges recognized in net income (138,297 ) 54,115 (84,182 ) Net unrealized losses on investment securities with OTTI (126,066 ) 49,294 (76,772 ) AFS investment securities all other: Unrealized holding gains 375,733 (144,228 ) 231,505 Less: reclassification adjustment for gains realized in net income 219 (85 ) 134 Less: securities with OTTI charges (264,363 ) 103,409 (160,954 ) 639,877 (247,552 ) 392,325 Reclassification of unrealized holding losses to income on investment securities previously transferred from AFS to held to maturity (HTM) 14,027 7,463 21,490 Net unrealized gains on investment securities 527,838 (190,795 ) 337,043 Reclassification of losses on terminated cash flow hedges to income 10,761 (4,204 ) 6,557 Defined benefit plans liability adjustment 93,823 (36,539 ) 57,284 $ 632,422 $ (231,538 ) $ 400,884 For the year ended December31, 2008 Unrealized losses on AFS investment securities: Unrealized holding losses $ (1,001,417 ) $ 331,461 $ (669,956 ) Add: transfer of investment securities from AFS to HTM 86,943 (20,972 ) 65,971 Less: reclassification adjustment for losses recognized in net income (180,274 ) 10,863 (169,411 ) (734,200 ) 299,626 (434,574 ) Unrealized holding losses on investment securities transferred from AFS to HTM: Unrealized holding losses transferred (86,943 ) 20,972 (65,971 ) Reclassification of unrealized holding losses to income 5,101 (1,818 ) 3,283 (81,842 ) 19,154 (62,688 ) Net unrealized losses on

Other income and other expense

Other income and other expense
	12 Months Ended Dec. 31, 2009 USD / shares
Other income and other expense [Abstract]
Other income and other expense	16. Other income and other expense The following items, which exceeded 1% of total interest income and other income in the respective period, were included in either other revenues from operations or other costs of operations in the consolidated statement of income: Year Ended December31 2009 2008 2007 (In thousands) Other income: Bank owned life insurance $ 49,152 $ 49,006 $ 46,723 Credit-related fee income 56,150 55,293 Letter of credit fees 44,005 Other expense: Professional services 117,523 112,632 95,912 Amortization of capitalized servicing rights 62,268 65,722 62,931 Advertising and promotion 39,364

International activities

International activities
	12 Months Ended Dec. 31, 2009 USD / shares
International activities [Abstract]
International activities	17. International activities The Company engages in certain international activities consisting largely of collecting Eurodollar deposits, engaging in foreign currency trading, providing credit to support the international activities of domestic companies and holding certain loans to foreign borrowers. Net assets identified with international activities amounted to $61,849,000 and $98,767,000 at December31, 2009 and 2008, respectively. Such assets included $55,336,000 and $91,472,000, respectively, of loans to foreign borrowers. Deposits at MT Banks offshore branch office were $1,050,438,000 and $4,047,986,000 at December31, 2009 and 2008, respectively. The Company uses such deposits to facilitate customer demand and as an alternative to short-term borrowings when the costs of such deposits seem reasonable.

Derivative financial instrument

Derivative financial instruments
	12 Months Ended Dec. 31, 2009 USD / shares
Derivative financial instruments [Abstract]
Derivative financial instruments	18. Derivative financial instruments As part of managing interest rate risk, the Company enters into interest rate swap agreements to modify the repricing characteristics of certain portions of the Companys portfolios of earning assets and interest-bearing liabilities. The Company designates interest rate swap agreements utilized in the management of interest rate risk as either fair value hedges or cash flow hedges. Interest rate swap agreements are generally entered into with counterparties that meet established credit standards and most contain master netting and collateral provisions protecting the at-risk party. Based on adherence to the Companys credit standards and the presence of the netting and collateral provisions, the Company believes that the credit risk inherent in these contracts is not significant as of December31, 2009. The net effect of interest rate swap agreements was to increase net interest income by $38million and $16million in 2009 and 2008, respectively, and to decrease net interest income in 2007 by $3million. The average notional amounts of interest rate swap agreements impacting net interest income that were entered into for interest rate risk management purposes was $1.08billion in 2009, $1.27billion in 2008 and $1.41billion in 2007. Information about interest rate swap agreements entered into for interest rate risk management purposes summarized by type of financial instrument the swap agreements were intended to hedge follows: Notional Average Weighted-Average Rate Estimated Fair Amount Maturity Fixed Variable Value Gain (In thousands) (In years) (In thousands) December31, 2009 Fair value hedges: Fixed rate time deposits(a) $ 25,000 3.7 5.30 % 0.34 % $ 503 Fixed rate long-term borrowings(a) 1,037,241 6.5 6.33 2.12 53,983 $ 1,062,241 6.4 6.30 % 2.07 % $ 54,486 December31, 2008 Fair value hedges: Fixed rate time deposits(a) $ 70,000 6.1 5.14 % 2.04 % $ 2,300 Fixed rate long-term borrowings(a) 1,037,241 7.5 6.33 4.28 143,811 $ 1,107,241 7.4 6.25 % 4.14 % $ 146,111 (a) Under the terms of these agreements, the Company receives settlement amounts at a fixed rate and pays at a variable rate. In response to changes in its interest rate risk profile, during 2008 the Company terminated interest rate swap agree

Variable interest entities and

Variable interest entities and asset securitizations
	12 Months Ended Dec. 31, 2009 USD / shares
Variable interest entities and asset securitizations [Abstract]
Variable interest entities and asset securitizations	19. Variable interest entities and asset securitizations Variable interest entities Variable interest entities in which the Company holds a significant variable interest are described below. MT has a variable interest in a trust that holds AIB ADSs for the purpose of satisfying options to purchase such shares for certain employees. The trust purchased the AIB ADSs with the proceeds of a loan from an entity subsequently acquired by MT. Proceeds from option exercises and any dividends and other earnings on the trust assets are used to repay the loan plus interest. Option holders have no preferential right with respect to the trust assets and the trust assets are subject to the claims of MTs creditors. The trust has been included in the Companys consolidated financial statements. As a result, included in investment securities available for sale were 591,813 AIB ADSs with a carrying value of approximately $2million at December31, 2009 and $3million at December31, 2008. Outstanding options granted to employees who have continued service with MT totaled 189,450 and 304,210 at December31, 2009 and 2008, respectively. All outstanding options were fully vested and exercisable at both December31, 2009 and 2008. The options expire at various dates through June 2012. The AIB ADSs are included in available for sale investment securities and have a fair value of $2million and an amortized cost of $13million at December31, 2009. As described in note9, MT has issued junior subordinated debentures payable to various trusts that have issued Capital Securities. MT owns the common securities of those trust entities. The Company is not considered to be the primary beneficiary of those entities and, accordingly, the trusts are not included in the Companys consolidated financial statements. At December31, 2009 and 2008, the Company included the Junior Subordinated Debentures as long-term borrowings in its consolidated balance sheet. The Company has recognized $34million in other assets for its investment in the common securities of the trusts that will be concomitantly repaid to MT by the respective trust from the proceeds of MTs repayment of the junior subordinated debentures associated with preferred capital securities described in note9. The Company has invested as a limited partner in various real estate partnerships that collectively had total assets of approximately $1.0billion and $593million at December31, 2009 and 2008, respectively. Those partnerships generally construct or acquire properties for which the investing partners are eligible to receive certain federal income tax credits in accordance with government guidelines. Such investments may also provide tax deductible losses to the partners. The partnership investments also assist the Company in achieving its community reinvestment initiatives. As a limited partner, there is no recourse to the Company by creditors of the partnerships. However, the tax credits that result from the Companys investments in such partnerships are generally subject to recapture should a partnership fail to comply with the respective government regulations. The Companys maximum exposure to

Fair value measurements

Fair value measurements
	12 Months Ended Dec. 31, 2009 USD / shares
Fair value measurements [Abstract]
Fair value measurements	20. Fair value measurements GAAP permits an entity to choose to measure eligible financial instruments and other items at fair value. The Company has not made any fair value elections as of December31, 2009. Pursuant to GAAP, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A three-level hierarchy exists in GAAP for fair value measurements based upon the inputs to the valuation of an asset or liability. Level1 Valuation is based on quoted prices in active markets for identical assets and liabilities. Level2 Valuation is determined from quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar instruments in markets that are not active or by model-based techniques in which all significant inputs are observable in the market. Level3 Valuation is derived from model-based and other techniques in which at least one significant input is unobservable and which may be based on the Companys own estimates about the assumptions that market participants would use to value the asset or liability. When available, the Company attempts to use quoted market prices in active markets to determine fair value and classifies such items as Level1 or Level2. If quoted market prices in active markets are not available, fair value is often determined using model-based techniques incorporating various assumptions including interest rates, prepayment speeds and credit losses. Assets and liabilities valued using model-based techniques are classified as either Level2 or Level3, depending on the lowest level classification of an input that is considered significant to the overall valuation. The following is a description of the valuation methodologies used for the Companys assets and liabilities that are measured on a recurring basis at estimated fair value. Trading account assets and liabilities Trading account assets and liabilities consist primarily of interest rate swap agreements and foreign exchange contracts with customers who require such services with offsetting trading positions with third parties to minimize the Companys risk with respect to such transactions. The Company generally determines the fair value of its derivative trading account assets and liabilities using externally developed pricing models based on market observable inputs and therefore classifies such valuations as Level2. Prices for certain foreign exchange contracts are more observable and therefore have been classified as Level1. Mutual funds held in connection with deferred compensation arrangements have also been classified as Level1 valuations. Valuations of investments in municipal and other bonds can generally be obtained through reference to quoted prices in less active markets for the same or similar securities or through model-based techniques in which all significant inputs are observable and, therefore, such valuations have been classified as Level2. Investment securities available for sale The majority of the Companys

Commitments and contingencies

Commitments and contingencies
	12 Months Ended Dec. 31, 2009 USD / shares
Commitments and contingencies [Abstract]
Commitments and contingencies	21. Commitments and contingencies In the normal course of business, various commitments and contingent liabilities are outstanding. The following table presents the Companys significant commitments. Certain of these commitments are not included in the Companys consolidated balance sheet. December31 2009 2008 (In thousands) Commitments to extend credit Home equity lines of credit $ 6,482,987 $ 5,972,541 Commercial real estate loans to be sold 180,498 252,559 Other commercial real estate and construction 1,360,805 2,238,464 Residential real estate loans to be sold 631,090 870,578 Other residential real estate 127,788 211,705 Commercial and other 7,155,188 6,666,988 Standby letters of credit 3,828,586 3,886,396 Commercial letters of credit 66,377 45,503 Financial guarantees and indemnification contracts 1,633,549 1,546,873 Commitments to sell real estate loans 1,239,001 1,306,041 Commitments to extend credit are agreements to lend to customers, generally having fixed expiration dates or other termination clauses that may require payment of a fee. Standby and commercial letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party, whereas commercial letters of credit are issued to facilitate commerce and typically result in the commitment being funded when the underlying transaction is consummated between the customer and third party. The credit risk associated with commitments to extend credit and standby and commercial letters of credit is essentially the same as that involved with extending loans to customers and is subject to normal credit policies. Collateral may be obtained based on managements assessment of the customers creditworthiness. Financial guarantees and indemnification contracts are oftentimes similar to standby letters of credit and include mandatory purchase agreements issued to ensure that customer obligations are fulfilled, recourse obligations associated with sold loans, and other guarantees of customer performance or compliance with designated rules and regulations. Included in financial guarantees and indemnification contracts are loan principal amounts sold with recourse in conjunction with the Companys involvement in the Fannie Mae DUS program. The Companys maximum credit risk for recourse associated with loans sold under this program totaled approximately $1.3billion and $1.2billion at December31, 2009 and 2008, respectively. Since many loan commitments, standby letters of credit, and guarantees and indemnification contracts expire without being funded in whole or in part, the contract amounts are not necessarily indicative of future cash flows. The Company ut

Segment information

Segment information
	12 Months Ended Dec. 31, 2009 USD / shares
Segment information [Abstract]
Segment information	22. Segment information Reportable segments have been determined based upon the Companys internal profitability reporting system, which is organized by strategic business unit. Certain strategic business units have been combined for segment information reporting purposes where the nature of the products and services, the type of customer and the distribution of those products and services are similar. The reportable segments are Business Banking, Commercial Banking, Commercial Real Estate, Discretionary Portfolio, Residential Mortgage Banking and Retail Banking. The financial information of the Companys segments has been compiled utilizing the accounting policies described in note1 with certain exceptions. The more significant of these exceptions are described herein. The Company allocates interest income or interest expense using a methodology that charges users of funds (assets) interest expense and credits providers of funds (liabilities) with income based on the maturity, prepayment and/or repricing characteristics of the assets and liabilities. The net effect of this allocation is recorded in the All Other category. A provision for credit losses is allocated to segments in an amount based largely on actual net charge-offs incurred by the segment during the period plus or minus an amount necessary to adjust the segments allowance for credit losses due to changes in loan balances. In contrast, the level of the consolidated provision for credit losses is determined using the methodologies described in note1 to assess the overall adequacy of the allowance for credit losses. Indirect fixed and variable expenses incurred by certain centralized support areas are allocated to segments based on actual usage (for example, volume measurements) and other criteria. Certain types of administrative expenses and bankwide expense accruals (including amortization of core deposit and other intangible assets associated with acquisitions of financial institutions) are generally not allocated to segments. Income taxes are allocated to segments based on the Companys marginal statutory tax rate adjusted for any tax-exempt income or non-deductible expenses. Equity is allocated to the segments based on regulatory capital requirements and in proportion to an assessment of the inherent risks associated with the business of the segment (including interest, credit and operating risk). The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike financial accounting, are not based on authoritative guidance similar to generally accepted accounting principles. As a result, reported segment results are not necessarily comparable with similar information reported by other financial institutions. Furthermore, changes in management structure or allocation methodologies and procedures may result in changes in reported segment financial data. Information about the Companys segments is presented in the accompanying table. Income statement amounts are in thousands of dollars. Balance sheet amounts are in millions of dollars.

Regulatory Matters

Regulatory Matters
	12 Months Ended Dec. 31, 2009 USD / shares
Regulatory Matters [Abstract]
Regulatory Matters	23. Regulatory matters Payment of dividends by MTs banking subsidiaries is restricted by various legal and regulatory limitations. Dividends from any banking subsidiary to MT are limited by the amount of earnings of the banking subsidiary in the current year and the preceding two years. For purposes of this test, at December31, 2009, approximately $1.2billion was available for payment of dividends to MT from banking subsidiaries. Banking regulations prohibit extensions of credit by the subsidiary banks to MT unless appropriately secured by assets. Securities of affiliates are not eligible as collateral for this purpose. The bank subsidiaries are required to maintain noninterest-earning reserves against certain deposit liabilities. During the maintenance periods that included December31, 2009 and 2008, cash and due from banks included a daily average of $162,952,000 and $183,088,000, respectively, for such purpose. Federal regulators have adopted capital adequacy guidelines for bank holding companies and banks. Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary, actions by regulators that, if undertaken, could have a material effect on the Companys financial statements. Under the capital adequacy guidelines, the so-called Tier1 capital and Total capital as a percentage of risk-weighted assets and certain off-balance sheet financial instruments must be at least 4% and 8%, respectively. In addition to these risk-based measures, regulators also require banking institutions that meet certain qualitative criteria to maintain a minimum leverage ratio of Tier1 capital to average total assets, adjusted for goodwill and certain other items, of at least 3% to be considered adequately capitalized. As of December31, 2009, MT and each of its banking subsidiaries exceeded all applicable capital adequacy requirements. To be considered well capitalized, under the regulatory framework for prompt corrective action, a banking institution must maintain Tier1 risk-based capital, total risk-based capital and leverage ratios of at least 6%, 10% and 5%, respectively. The capital ratios and amounts of the Company and its banking subsidiaries as of December31, 2009 and 2008 are presented below: MT MT (Consolidated) MT Bank Bank, N.A. (Dollars in thousands) December31, 2009: Tier1 capital Amount $ 5,514,093 $ 4,988,224 $ 188,769 Ratio(a) 8.59 % 7.96 % 18.49 % Minimum required amount(b) 2,567,323 2,507,700 40,846 Total capital Amount 7,892,455 7,342,191 193,591 Ratio(a) 12.30 % 11.71 % 18.96 % Minimum required amount(b) 5,134,646 5,015,399 81,692 Leverage Amount 5,514,093 4,988,224 188,769 Ratio(c) 8.43

Relationship of M&T and AIB

Relationship of M&T and AIB
	12 Months Ended Dec. 31, 2009 USD / shares
Relationship of M&T and AIB [Abstract]
Relationship of M&T and AIB	24. Relationship of MT and AIB AIB received 26,700,000shares of MT common stock on April1, 2003 as a result of MTs acquisition of a subsidiary of AIB on that date. Those shares of common stock owned by AIB represented 22.6% of the issued and outstanding shares of MT common stock on December31, 2009. While AIB maintains a significant ownership in MT, the Agreement and Plan of Reorganization between MT and AIB (Reorganization Agreement) includes several provisions related to the corporate governance of MT that provide AIB with representation on the MT and MT Bank boards of directors and key board committees and certain protections of its rights as a substantial MT shareholder. In addition, AIB has rights that will facilitate its ability to maintain its proportionate ownership position in MT. With respect to AIBs right to have representation on the MT and MT Bank boards of directors and key board committees, for as long as AIB holds at least 15% of MTs outstanding common stock, AIB is entitled to designate four individuals, reasonably acceptable to MT, on both the MT and MT Bank boards of directors. In addition, one of the AIB designees to the MT board of directors will serve on each of the Executive; Nomination, Compensation and Governance; and Audit and Risk committees. Also, as long as AIB holds at least 15% of MTs outstanding common stock, neither the MT nor the MT Bank board of directors may consist of more than 28directors without the consent of the MT directors designated by AIB. AIB will continue to enjoy these rights if its holdings of MT common stock drop below 15%, but not below 12%, so long as AIB restores its ownership percentage to 15% within one year. In the event that AIB holds at least 10%, but less than 15%, of MTs outstanding common stock, AIB will be entitled to designate at least two individuals on both the MT and MT Bank boards of directors and, in the event that AIB holds at least 5%, but less than 10%, of MTs outstanding common stock, AIB will be entitled to designate one individual on both the MT and MT Bank boards of directors. MT also has the right to appoint one representative to the AIB board while AIB remains a significant shareholder. There are several other corporate governance provisions that serve to protect AIBs rights as a substantial MT shareholder and are embodied in MTs certificate of incorporation and bylaws. These protections include an effective consent right in connection with certain actions by MT, such as amending MTs certificate of incorporation or bylaws in a manner inconsistent with AIBs rights, engaging in activities not permissible for a bank holding company or adopting any shareholder rights plan or other measures intended to prevent or delay any transaction involving a change in control of MT. AIB has the right to limit, with the agreement of at least one non-AIB designee on the MT board of directors, other actions by MT, such as reducing MTs cash dividend policy such that the ratio of cash dividends to net income is less than 15%, acquisitions and dispositions of significant amounts of assets, and the appointment or election of the chairman of the board of directors o

Relationship with Bayview Lendi

Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P.
	12 Months Ended Dec. 31, 2009 USD / shares
Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P. [Abstract]
Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P.	25. Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P. In 2007, MT invested $300million to acquire a 20% minority interest in Bayview Lending Group LLC (BLG), a privately-held commercial mortgage lender. MT recognizes income from BLG using the equity method of accounting. The carrying value of that investment was $246million at December31, 2009. Bayview Financial Holdings, L.P. (together with its affiliates, Bayview Financial), a privately-held specialty mortgage finance company, is BLGs majority investor. In addition to their common investment in BLG, the Company and Bayview Financial conduct other business activities with each other. The Company has purchased loan servicing rights for small-balance commercial mortgage loans from BLG and Bayview Financial having outstanding principal balances of $5.5billion and $5.9billion at December31, 2009 and 2008, respectively. Amounts recorded as capitalized servicing assets for such loans totaled $40million at December31, 2009 and $58million at December31, 2008. In addition, capitalized servicing rights at December31, 2009 and 2008 also included $17million and $28million, respectively, for servicing rights that were purchased from Bayview Financial related to residential mortgage loans with outstanding principal balances of $4.1billion and $4.6billion at December31, 2009 and 2008, respectively. Revenues from servicing residential and small-balance commercial mortgage loans purchased from BLG and Bayview Financial were $50million, $54million and $48million during 2009, 2008 and 2007, respectively. MT Bank provided $34million and $71million of credit facilities to Bayview Financial at December31, 2009 and December31, 2008, respectively, of which $24million and $57million was outstanding at December31, 2009 and December31, 2008, respectively. At December31, 2009 and 2008, the Company held $25million and $32million, respectively, of collateralized mortgage obligations in its available-for-sale investment securities portfolio that were securitized by Bayview Financial. In addition, the Company held $352million and $412million of similar investment securities in its held-to-maturity portfolio at December31, 2009 and December31, 2008, respectively.

Parent company financial statem

Parent company financial statements
	12 Months Ended Dec. 31, 2009 USD / shares
Parent company financial statements [Abstract]
Parent company financial statements	26. Parent company financial statements Condensed Balance Sheet December31 2009 2008 (In thousands) Assets Cash in subsidiary bank $ 1,455 $ 2,506 Due from consolidated bank subsidiaries Money-market savings 327,029 694,665 Note receivable 200,000 Current income tax receivable 5,037 6,420 Other 55 717 Total due from consolidated bank subsidiaries 332,121 901,802 Investments in consolidated subsidiaries Banks 8,559,692 7,000,095 Other 29,925 28,552 Investments in unconsolidated subsidiaries (note19) 34,424 30,633 Investment in Bayview Lending Group LLC 245,568 271,466 Other assets 93,506 105,786 Total assets $ 9,296,691 $ 8,340,840 Liabilities Due to consolidated bank subsidiaries $ $ 121 Accrued expenses and other liabilities 68,004 58,124 Long-term borrowings 1,475,780 1,497,864 Total liabilities 1,543,784 1,556,109 Stockholders equity 7,752,907 6,784,731 Total liabilities and stockholders equity $ 9,296,691 $ 8,340,840 Condensed Statement of Income Year Ended December31 2009 2008 2007 (In thousands, except per share) Income Dividends from consolidated bank subsidiaries $ $ $ 609,500 Equity in earnings of Bayview Lending Group LLC (25,898 ) (37,453 ) 8,935 Other income 10,670 2,985 26,217 Total income (15,228 ) (34,468 ) 644,652 Expense Interest on long-term borrowings 93,331 101,534 75,608 Other expense 5,427 2,798 7,376 Total expense 98,758 104,332 82,984 Income (loss) before income taxes and equity in undistributed income of subsidiaries (113,986 ) (138,800 ) 561,668 Income tax credits 42,740 51,085 18,597 Income (loss) before equity in undistributed income of subsidiaries (71,246 ) (87,715 ) 580,265 Equity in undistributed income of subsidiaries Net income of subsidiaries 451,137 643,602 683,494