11. 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 at September 30, 2018.

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.

•

Level 1 — Valuation is based on quoted prices in active markets for identical assets and liabilities.

•

Level 2 — 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.

•

Level 3 — 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 Company's 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 Level 1 or Level 2. 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 Level 2 or Level 3, 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 Company's assets and liabilities that are measured on a recurring basis at estimated fair value.

11. Fair value measurements, continued

Trading account assets and liabilities

Trading account assets and liabilities consist primarily of interest rate contracts and foreign exchange contracts with customers who require such services with offsetting positions with third parties to minimize the Company's 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 Level 2. Mutual funds held in connection with deferred compensation and other arrangements have been classified as Level 1 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 Level 2.

Investment securities available for sale and equity securities

The majority of the Company's available-for-sale investment securities have been valued by reference to prices for similar securities or through model-based techniques in which all significant inputs are observable and, therefore, such valuations have been classified as Level 2. Certain investments in mutual funds and equity securities are actively traded and, therefore, have been classified as Level 1 valuations.

Real estate loans held for sale

The Company utilizes commitments to sell real estate loans to hedge the exposure to changes in fair value of real estate loans held for sale. The carrying value of hedged real estate loans held for sale includes changes in estimated fair value during the hedge period. Typically, the Company attempts to hedge real estate loans held for sale from the date of close through the sale date. The fair value of hedged real estate loans held for sale is generally calculated by reference to quoted prices in secondary markets for commitments to sell real estate loans with similar characteristics and, accordingly, such loans have been classified as a Level 2 valuation.

Commitments to originate real estate loans for sale and commitments to sell real estate loans

The Company enters into various commitments to originate real estate loans for sale and commitments to sell real estate loans. Such commitments are considered to be derivative financial instruments and, therefore, are carried at estimated fair value on the consolidated balance sheet. The estimated fair values of such commitments were generally calculated by reference to quoted prices in secondary markets for commitments to sell real estate loans to certain government-sponsored entities and other parties. The fair valuations of commitments to sell real estate loans generally result in a Level 2 classification. The estimated fair value of commitments to originate real estate loans for sale are adjusted to reflect the Company's anticipated commitment expirations. The estimated commitment expirations are considered significant unobservable inputs contributing to the Level 3 classification of commitments to originate real estate loans for sale. Significant unobservable inputs used in the determination of estimated fair value of commitments to originate real estate loans for sale are included in the accompanying table of significant unobservable inputs to Level 3 measurements.

Interest rate swap agreements used for interest rate risk management

The Company utilizes interest rate swap agreements as part of the management of interest rate risk to modify the repricing characteristics of certain portions of its portfolios of earning assets and interest-bearing liabilities. The Company generally determines the fair value of its interest rate swap agreements using externally developed pricing models based on market observable inputs and, therefore, classifies such valuations as Level 2. The Company has considered counterparty credit risk in the valuation of its interest rate swap agreement assets and has considered its own credit risk in the valuation of its interest rate swap agreement liabilities.

11. Fair value measurements, continued

The following tables present assets and liabilities at September 30, 2018 and December 31, 2017 measured at estimated fair value on a recurring basis:

	Fair Value Measurements		Level 1 (a)		Level 2 (a)		Level 3
	(In thousands)
September 30, 2018
Trading account assets	$	125,038	$	47,653	$	77,385	$	—
Investment securities available for sale:
U.S. Treasury and federal agencies		1,608,672		—		1,608,672		—
Obligations of states and political subdivisions		1,796		—		1,796		—
Mortgage-backed securities:
Government issued or guaranteed		7,412,696		—		7,412,696		—
Privately issued		23		—		—		23
Other debt securities		131,328		—		131,328		—
		9,154,515		—		9,154,492		23
Equity securities		90,129		72,651		17,478		—
Real estate loans held for sale		638,579		—		638,579		—
Other assets (b)		19,698		—		14,073		5,625
Total assets	$	10,027,959	$	120,304	$	9,902,007	$	5,648
Trading account liabilities	$	308,733	$	—	$	308,733	$	—
Other liabilities (b)		2,235		—		796		1,439
Total liabilities	$	310,968	$	—	$	309,529	$	1,439

December 31, 2017
Trading account assets	$	132,909	$	47,873	$	85,036	$	—
Investment securities available for sale:
U.S. Treasury and federal agencies		1,947,487		—		1,947,487		—
Obligations of states and political subdivisions		2,589		—		2,589		—
Mortgage-backed securities:
Government issued or guaranteed		8,716,392		—		8,716,392		—
Privately issued		28		—		—		28
Other debt securities		128,832		—		128,832		—
Equity securities		100,956		73,232		27,724		—
		10,896,284		73,232		10,823,024		28
Real estate loans held for sale		378,047		—		378,047		—
Other assets (b)		12,696		—		3,899		8,797
Total assets	$	11,419,936	$	121,105	$	11,290,006	$	8,825
Trading account liabilities	$	137,390	$	—	$	137,390	$	—
Other liabilities (b)		1,796		—		1,302		494
Total liabilities	$	139,186	$	—	$	138,692	$	494

(a)	There were no significant transfers between Level 1 and Level 2 of the fair value hierarchy during the nine months ended September 30, 2017 and the year ended December 31, 2017.

(b)	Comprised predominantly of interest rate swap agreements used for interest rate risk management (Level 2), commitments to sell real estate loans (Level 2) and commitments to originate real estate loans to be held for sale (Level 3).

11. Fair value measurements, continued

The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis during the three months ended September 30, 2018 were as follows:

	Investment Securities Available for Sale
	Privately Issued Mortgage-Backed Securities			Other Assets and Other Liabilities
	(In thousands)

Balance — June 30, 2018	$	24			10,751
Total gains (losses) realized/unrealized:
Included in earnings		—			10,284		(b)
Settlements		(1	)		—
Transfers out of Level 3 (a)		—			(16,849	)	(c)
Balance — September 30, 2018	$	23			4,186
Changes in unrealized gains included in earnings related to assets still held at September 30, 2018	$	—			4,508		(b)

The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis during the three months ended September 30, 2017 were as follows:

	Investment Securities Available for Sale
	Privately Issued Mortgage-Backed Securities			Other Assets and Other Liabilities
	(In thousands)

Balance — June 30, 2017	$	35			12,425
Total gains (losses) realized/unrealized:
Included in earnings		—			22,313		(b)
Settlements		(5	)		—
Transfers out of Level 3 (a)		—			(21,016	)	(c)
Balance — September 30, 2017	$	30			13,722
Changes in unrealized gains included in earnings related to assets still held at September 30, 2017	$	—			12,659		(b)

11. Fair value measurements, continued

The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis during the nine months ended September 30, 2018 were as follows:

	Investment securities available for sale
	Privately Issued Mortgage-Backed Securities			Other Assets and Other Liabilities
	(In thousands)

Balance — January 1, 2018	$	28			8,303
Total gains (losses) realized/unrealized:
Included in earnings		—			38,691		(b)
Settlements		(5	)		—
Transfers out of Level 3 (a)		—			(42,808	)	(c)
Balance — September 30, 2018	$	23			4,186
Changes in unrealized gains included in earnings related to assets still held at September 30, 2018	$	—			3,663		(b)

The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis during the nine months ended September 30, 2017 were as follows:

	Investment securities available for sale
	Privately Issued Mortgage-Backed Securities			Other Assets and Other Liabilities
	(In thousands)

Balance — January 1, 2017	$	44			7,325
Total gains (losses) realized/unrealized:
Included in earnings		—			65,824		(b)
Settlements		(14	)		—
Transfers out of Level 3 (a)		—			(59,427	)	(c)
Balance — September 30, 2017	$	30			13,722
Changes in unrealized gains included in earnings related to assets still held at September 30, 2017	$	—			13,684		(b)

(a)	The Company’s policy for transfers between fair value levels is to recognize the transfer as of the actual date of the event or change in circumstances that caused the transfer.

(b)	Reported as mortgage banking revenues in the consolidated statement of income and includes the fair value of commitment issuances and expirations.

(c)	Transfers out of Level 3 consist of interest rate locks transferred to closed loans.

11. Fair value measurements, continued

The Company is required, on a nonrecurring basis, to adjust the carrying value of certain assets or provide valuation allowances related to certain assets using fair value measurements. The more significant of those assets follow.

Loans

Loans are generally not recorded at fair value on a recurring basis. Periodically, the Company records nonrecurring adjustments to the carrying value of loans based on fair value measurements for partial charge-offs of the uncollectible portions of those loans. Nonrecurring adjustments also include certain impairment amounts for collateral-dependent loans when establishing the allowance for credit losses. Such amounts are generally based on the fair value of the underlying collateral supporting the loan and, as a result, the carrying value of the loan less the calculated valuation amount does not necessarily represent the fair value of the loan. Real estate collateral is typically valued using appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the marketplace and the related nonrecurring fair value measurement adjustments have generally been classified as Level 2, unless significant adjustments have been made to the valuation that are not readily observable by market participants. Non-real estate collateral supporting commercial loans generally consists of business assets such as receivables, inventory and equipment. Fair value estimations are typically determined by discounting recorded values of those assets to reflect estimated net realizable value considering specific borrower facts and circumstances and the experience of credit personnel in their dealings with similar borrower collateral liquidations. Such discounts were generally in the range of 15% to 90% at September 30, 2018. As these discounts are not readily observable and are considered significant, the valuations have been classified as Level 3. Automobile collateral is typically valued by reference to independent pricing sources based on recent sales transactions of similar vehicles, and the related nonrecurring fair value measurement adjustments have been classified as Level 2. Collateral values for other consumer installment loans are generally estimated based on historical recovery rates for similar types of loans. As these recovery rates are not readily observable by market participants, such valuation adjustments have been classified as Level 3. Loans subject to nonrecurring fair value measurement were $292 million at September 30, 2018 ($128 million and $164 million of which were classified as Level 2 and Level 3, respectively), $210 million at December 31, 2017 ($145 million and $65 million of which were classified as Level 2 and Level 3, respectively) and $184 million at September 30, 2017 ($105 million and $79 million of which were classified as Level 2 and Level 3, respectively). Changes in fair value recognized for partial charge-offs of loans and loan impairment reserves on loans held by the Company on September 30, 2018 were decreases of $35 million and $69 million for the three-month and nine-month periods ended September 30, 2018, respectively. Changes in fair value recognized for partial charge-offs of loans and loan impairment reserves on loans held by the Company on September 30, 2017 were decreases of $16 million and $55 million for the three-month and nine-month periods ended September 30, 2017, respectively.

Assets taken in foreclosure of defaulted loans

Assets taken in foreclosure of defaulted loans are primarily comprised of commercial and residential real property and are generally measured at the lower of cost or fair value less costs to sell. The fair value of the real property is generally determined using appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the marketplace, and the related nonrecurring fair value measurement adjustments have generally been classified as Level 2. Assets taken in foreclosure of defaulted loans subject to nonrecurring fair value measurement were $32 million and $36 million at September 30, 2018 and 2017, respectively. Changes in fair value recognized for those foreclosed assets held by the Company were not material during the three-month and nine-month periods ended September 30, 2018 and 2017.

11. Fair value measurements, continued

Significant unobservable inputs to Level 3 measurements

The following tables present quantitative information about significant unobservable inputs used in the fair value measurements for certain Level 3 assets and liabilities at September 30, 2018 and December 31, 2017:

Fair Value

Valuation

Technique

Unobservable

Inputs/Assumptions

Range

(Weighted-

Average)

(In thousands)

September 30, 2018

Recurring fair value measurements

Privately issued mortgage-backed

securities

Two independent pricing quotes

—

Net other assets (liabilities) (a)

4,186

Discounted cash flow

Commitment expirations

0%-90% (16%)

December 31, 2017

Recurring fair value measurements

Privately issued mortgage-backed

securities

Two independent pricing quotes

—

Net other assets (liabilities) (a)

8,303

Discounted cash flow

Commitment expirations

0%-78% (22%)

(a)	Other Level 3 assets (liabilities) consist of commitments to originate real estate loans.

Sensitivity of fair value measurements to changes in unobservable inputs

An increase (decrease) in the estimate of expirations for commitments to originate real estate loans would generally result in a lower (higher) fair value measurement. Estimated commitment expirations are derived considering loan type, changes in interest rates and remaining length of time until closing.

11. Fair value measurements, continued

Disclosures of fair value of financial instruments

The carrying amounts and estimated fair value for financial instrument assets (liabilities) are presented in the following table:

	September 30, 2018
	Carrying Amount			Estimated Fair Value			Level 1		Level 2			Level 3
	(In thousands)
Financial assets:
Cash and cash equivalents	$	1,311,611			1,311,611			1,232,393		79,218			—
Interest-bearing deposits at banks		6,523,746			6,523,746			—		6,523,746			—
Trading account assets		125,038			125,038			47,653		77,385			—
Investment securities		13,073,881			12,968,432			72,651		12,790,484			105,297
Loans and leases:
Commercial loans and leases		21,635,394			21,215,945			—		—			21,215,945
Commercial real estate loans		33,518,375			32,971,832			—		381,007			32,590,825
Residential real estate loans		17,721,399			17,429,777			—		3,984,387			13,445,390
Consumer loans		13,805,317			13,676,356			—		—			13,676,356
Allowance for credit losses		(1,019,488	)		—			—		—			—
Loans and leases, net		85,660,997			85,293,910			—		4,365,394			80,928,516
Accrued interest receivable		349,903			349,903			—		349,903			—
Financial liabilities:
Noninterest-bearing deposits	$	(31,773,560	)		(31,773,560	)		—		(31,773,560	)		—
Savings and interest-checking deposits		(51,108,962	)		(51,108,962	)		—		(51,108,962	)		—
Time deposits		(5,810,587	)		(5,872,516	)		—		(5,872,516	)		—
Deposits at Cayman Islands office		(447,287	)		(447,287	)		—		(447,287	)		—
Short-term borrowings		(1,310,110	)		(1,310,110	)		—		(1,310,110	)		—
Long-term borrowings		(9,140,268	)		(9,160,009	)		—		(9,160,009	)		—
Accrued interest payable		(68,196	)		(68,196	)		—		(68,196	)		—
Trading account liabilities		(308,733	)		(308,733	)		—		(308,733	)		—
Other financial instruments:
Commitments to originate real estate loans for sale	$	4,186			4,186			—		—			4,186
Commitments to sell real estate loans		10,831			10,831			—		10,831			—
Other credit-related commitments		(129,102	)		(129,102	)		—		—			(129,102	)
Interest rate swap agreements used for interest rate risk management		2,446			2,446			—		2,446			—

11. Fair value measurements, continued

	December 31, 2017
	Carrying Amount			Estimated Fair Value			Level 1		Level 2			Level 3
				(In thousands)
Financial assets:
Cash and cash equivalents	$	1,420,888			1,420,888			1,352,035		68,853			—
Interest-bearing deposits at banks		5,078,903			5,078,903			—		5,078,903			—
Trading account assets		132,909			132,909			47,873		85,036			—
Investment securities		14,664,525			14,653,074			73,232		14,469,127			110,715
Loans and leases:
Commercial loans and leases		21,742,651			21,321,282			—		—			21,321,282
Commercial real estate loans		33,366,373			32,950,724			—		22,130			32,928,594
Residential real estate loans		19,613,344			19,596,826			—		4,440,645			15,156,181
Consumer loans		13,266,615			13,161,517			—		—			13,161,517
Allowance for credit losses		(1,017,198	)		—			—		—			—
Loans and leases, net		86,971,785			87,030,349			—		4,462,775			82,567,574
Accrued interest receivable		327,170			327,170			—		327,170			—
Financial liabilities:
Noninterest-bearing deposits	$	(33,975,180	)		(33,975,180	)		—		(33,975,180	)		—
Savings and interest-checking deposits		(51,698,008	)		(51,698,008	)		—		(51,698,008	)		—
Time deposits		(6,580,962	)		(6,635,048	)		—		(6,635,048	)		—
Deposits at Cayman Islands office		(177,996	)		(177,996	)		—		(177,996	)		—
Short-term borrowings		(175,099	)		(175,099	)		—		(175,099	)		—
Long-term borrowings		(8,141,430	)		(8,193,783	)		—		(8,193,783	)		—
Accrued interest payable		(75,641	)		(75,641	)		—		(75,641	)		—
Trading account liabilities		(137,390	)		(137,390	)		—		(137,390	)		—
Other financial instruments:
Commitments to originate real estate loans for sale	$	8,303			8,303			—		—			8,303
Commitments to sell real estate loans		1,958			1,958			—		1,958			—
Other credit-related commitments		(125,281	)		(125,281	)		—		—			(125,281	)
Interest rate swap agreements used for interest rate risk management		639			639			—		639			—

With the exception of marketable securities, certain off-balance sheet financial instruments and mortgage loans originated for sale, the Company’s financial instruments are not readily marketable and market prices do not exist. The Company, in attempting to comply with the provisions of GAAP that require disclosures of fair value of financial instruments, has not attempted to market its financial instruments to potential buyers, if any exist. Since negotiated prices in illiquid markets depend greatly upon the then present motivations of the buyer and seller, it is reasonable to assume that actual sales prices could vary widely from any estimate of fair value made without the benefit of negotiations. Additionally, changes in market interest rates can dramatically impact the value of financial instruments in a short period of time.

The Company does not believe that the estimated information presented herein is representative of the earnings power or value of the Company. The preceding analysis, which is inherently limited in depicting fair value, also does not consider any value associated with existing customer relationships nor the ability of the Company to create value through loan origination, deposit gathering or fee generating activities. Many of the estimates presented herein are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable between financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Furthermore, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different.