Investments include debt and equity securities and other investment securities. Citizens classifies debt securities as AFS, HTM, or trading based on management’s intent to hold to maturity at the time of purchase. Management reserves the right to change the initial classification of debt and equity securities purchased based on its intent to hold to maturity or as permitted by periodic changes in accounting guidance. Equity securities are recorded at fair value or at cost if there is not a readily determinable fair value.

Debt securities that will be held for indefinite periods of time and may be sold in response to changes in interest rates, changes in prepayment risk, or other factors considered in managing the Company’s asset/liability strategy are classified as AFS and reported at fair value, with unrealized gains and losses reported in AOCI, net of taxes, as a separate component of stockholders’ equity. Gains and losses on the sales of securities are recognized in noninterest income and are computed using the specific identification method.

For debt securities classified as AFS or HTM, interest income is recorded on the accrual basis including the amortization of premiums and the accretion of discounts. Premiums and discounts on debt securities are amortized or accreted using the effective interest method over the estimated lives of the individual securities. Citizens uses actual prepayment experience and estimates of future prepayments to determine the constant effective yield necessary to apply the effective interest method of income recognition. Estimates of future prepayments are based on the underlying collateral characteristics of each security and are derived from market sources. Judgment is involved in making determinations about prepayment expectations and in changing those expectations in response to changes in interest rates and macroeconomic conditions. The amortization of premiums and the accretion of discounts associated with mortgage-backed securities may be significantly impacted by changes in prepayment assumptions.

Securities classified as trading are bought and held principally for selling them in the near-term and carried at fair value, with changes in fair value recognized in earnings. When applicable, realized and unrealized gains and losses on such assets are reported in noninterest income in the Consolidated Statements of Operations.

Equity securities are primarily composed of FHLB and FRB stock (which are carried at cost) and money market mutual fund investments held by the Company’s broker-dealers (which are carried at fair value, with changes in fair value recognized in noninterest income) and are recorded in other assets on the Consolidated Balance Sheets. Equity securities that are carried at cost are reviewed at least annually for impairment, with valuation adjustments recognized in noninterest income.


	December 31, 2022				December 31, 2021
(in millions)	Amortized Cost	Gross Unrealized Gains	Gross Unrealized Losses	Fair Value	Amortized Cost	Gross Unrealized Gains	Gross Unrealized Losses	Fair Value
U.S. Treasury and other	$3,678	$1	($193)	$3,486	$11	$—	$—	$11
State and political subdivisions	2	—	—	2	2	—	—	2
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	21,250	10	(2,198)	19,062	24,607	210	(375)	24,442
Other/non-agency	280	—	(29)	251	397	9	(1)	405
Total mortgage-backed securities	21,530	10	(2,227)	19,313	25,004	219	(376)	24,847
Collateralized loan obligations	1,248	—	(42)	1,206	1,208	—	(1)	1,207
Total debt securities available for sale, at fair value	$26,458	$11	($2,462)	$24,007	$26,225	$219	($377)	$26,067
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	$9,253	$4	($751)	$8,506	$1,505	$52	$—	$1,557

Total mortgage-backed securities	9,253	4	(751)	8,506	1,505	52	—	1,557
Asset-backed securities	581	—	(45)	536	737	2	(7)	732
Total debt securities held to maturity	$9,834	$4	($796)	$9,042	$2,242	$54	($7)	$2,289
Equity securities, at cost	$1,058	$—	$—	$1,058	$624	$—	$—	$624
Equity securities, at fair value	153	—	—	153	109	—	—	109


	Distribution of Maturities
(in millions)	1 Year or Less	After 1 Year through 5 Years	After 5 Years through 10 Years	After 10 Years	Total
Amortized cost:
U.S. Treasury and other	$—	$2,114	$1,564	$—	$3,678
State and political subdivisions	—	—	—	2	2
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	1	1,149	2,889	17,211	21,250
Other/non-agency	—	—	—	280	280
Collateralized loan obligations	—	—	24	1,224	1,248
Total debt securities available for sale	1	3,263	4,477	18,717	26,458
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	—	—	—	9,253	9,253

Asset-backed securities	—	581	—	—	581
Total debt securities held to maturity	—	581	—	9,253	9,834
Total amortized cost of debt securities	$1	$3,844	$4,477	$27,970	$36,292

Fair value:
U.S. Treasury and other	$—	$2,010	$1,476	$—	$3,486
State and political subdivisions	—	—	—	2	2
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	1	1,097	2,691	15,273	19,062
Other/non-agency	—	—	—	251	251
Collateralized loan obligations	—	—	23	1,183	1,206
Total debt securities available for sale	1	3,107	4,190	16,709	24,007
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	—	—	—	8,506	8,506

Asset-backed securities	—	536	—	—	536
Total debt securities held to maturity	—	536	—	8,506	9,042
Total fair value of debt securities	$1	$3,643	$4,190	$25,215	$33,049


	December 31, 2022		December 31, 2021
(in millions)	Amortized Cost	Fair Value	Amortized Cost	Fair Value
Pledged against derivatives, to qualify for fiduciary powers, or to secure public and other deposits as required by law	$3,966	$3,527	$4,816	$4,782
Pledged as collateral for FHLB borrowing capacity	244	217	325	333
Pledged against repurchase agreements	—	—	1	1

The Company regularly enters into security repurchase agreements with unrelated counterparties, which involve the transfer of a security from one party to another, and a subsequent transfer of substantially the same security back to the original party. These repurchase agreements are typically short-term in nature and are accounted for as secured borrowed funds in the Company’s Consolidated Balance Sheets. The Company recognized no offsetting of short-term receivables or payables as of December 31, 2022 or 2021. The Company offsets certain derivative assets and derivative liabilities in the Consolidated Balance Sheets. For further information see Note 14.

Securitizations of mortgage loans retained in the investment portfolio for the years ended December 31, 2022 and 2021 were $143 million and $260 million, respectively. These securitizations include a substantive guarantee by a third party. The guarantors were FNMA and FHLMC in 2022 and 2021, and also included GNMA in 2021. The debt securities received from the guarantors are classified as AFS.

Upon purchase of HTM investment securities and at each subsequent measurement date, Citizens is required to evaluate the securities for risk of loss over their life and, if necessary, establish an associated reserve. Recognition of a reserve for expected credit losses is not required if the amount the Company expects to realize is zero (commonly referred to as “zero expected credit losses”). The Company evaluated its existing HTM portfolio as of December 31, 2022 and concluded that in excess of 94% of HTM securities met the zero expected credit loss criteria and, therefore, no ACL was recognized. Lifetime expected credit losses on the remainder of the HTM portfolio were determined to be insignificant based on the modeling of the Company’s credit loss position in the securities. The Company monitors the credit exposure through the use of credit quality indicators. For these securities, the Company uses external credit ratings or an internally derived credit rating when an external rating is not available. All securities were determined to be investment grade at December 31, 2022.

Citizens reviews its AFS debt securities for impairment at the individual security level on a quarterly basis, or more frequently if a potential loss triggering event occurs. The initial indicator of impairment for debt securities classified as AFS is a decline in fair value below its amortized cost basis. For any security that has declined in fair value below the amortized cost basis, the Company recognizes an impairment loss in current period earnings if management has the intent to sell the security or if it is more likely than not it will be required to sell the security before recovery of its amortized cost basis.

Estimating the recovery of the amortized cost basis of a debt security is based upon an assessment of the cash flows expected to be collected. If the present value of cash flows expected to be collected, discounted at the security’s original effective yield, is less than the amortized cost basis, impairment equal to the shortfall in cash flows has occurred. Citizens evaluates whether any portion of the impairment is attributable to credit-related factors or various other market factors affecting the fair value of the security (e.g., interest rates, spread levels, liquidity in the sector, etc.), and the public credit rating of the security. If credit-related factors exist, credit-related impairment has occurred regardless of the Company’s intent to hold the security until it recovers.

The credit-related portion of impairment is recognized in current period earnings as provision expense through the establishment of an allowance for AFS securities, to the extent the allowance does not reduce the value of the AFS security below its current fair value. The remaining non-credit related portion of impairment is recognized in OCI. Improvement in credit losses in subsequent periods results in a reversal of the allowance for AFS securities and a corresponding decrease to provision expense, to the extent the allowance does not become negative. Accrued interest receivable on AFS debt securities is excluded from the balances used to calculate the allowance for AFS securities. All accrued and uncollected interest is immediately reversed against interest income when it is deemed uncollectible.


	December 31, 2022
	Less than 12 Months		12 Months or Longer		Total
(in millions)	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses
US Treasury and other	$3,356	($193)	$—	$—	$3,356	($193)
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	13,353	(1,136)	5,042	(1,062)	18,395	(2,198)
Other/non-agency	80	(8)	171	(21)	251	(29)
Total mortgage-backed securities	13,433	(1,144)	5,213	(1,083)	18,646	(2,227)
Collateralized loan obligations	785	(26)	421	(16)	1,206	(42)
Total	$17,574	($1,363)	$5,634	($1,099)	$23,208	($2,462)


	December 31, 2021
	Less than 12 Months		12 Months or Longer		Total
(in millions)	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses	Fair Value	Gross Unrealized Losses
Mortgage-backed securities:
Federal agencies and U.S. government sponsored entities	$14,131	($320)	$1,236	($55)	$15,367	($375)
Other/non-agency	123	(1)	—	—	123	(1)
Total mortgage-backed securities	14,254	(321)	1,236	(55)	15,490	(376)
Collateralized loan obligations	736	(1)	—	—	736	(1)
Total	$14,990	($322)	$1,236	($55)	$16,226	($377)