The following tables provide the amortized cost, unrealized gains and losses and fair value for the major categories of the available-for-sale debt and other securities and held-to-maturity securities portfolios as of:


March 31, 2021 ($ in millions)	Amortized Cost		Unrealized Gains	Unrealized Losses	Fair Value
Available-for-sale debt and other securities:
U.S. Treasury and federal agencies securities	$	74	3	—	77
Obligations of states and political subdivisions securities	18		—	—	18
Mortgage-backed securities:
Agency residential mortgage-backed securities	11,536		594	(35)	12,095
Agency commercial mortgage-backed securities	17,357		938	(97)	18,198
Non-agency commercial mortgage-backed securities	3,195		208	—	3,403
Asset-backed securities and other debt securities	3,262		50	(29)	3,283
Other securities(a)	521		—	—	521
Total available-for-sale debt and other securities	$	35,963	1,793	(161)	37,595
Held-to-maturity securities:
Obligations of states and political subdivisions securities	$	9	—	—	9
Asset-backed securities and other debt securities	1		—	—	1
Total held-to-maturity securities	$	10	—	—	10


December 31, 2020 ($ in millions)	Amortized Cost		Unrealized Gains	Unrealized Losses	Fair Value
Available-for-sale debt and other securities:
U.S. Treasury and federal agencies securities	$	74	4	—	78
Obligations of states and political subdivisions securities	17		—	—	17
Mortgage-backed securities:
Agency residential mortgage-backed securities	11,147		768	(8)	11,907
Agency commercial mortgage-backed securities	16,745		1,481	(5)	18,221
Non-agency commercial mortgage-backed securities	3,323		267	—	3,590
Asset-backed securities and other debt securities	3,152		48	(24)	3,176
Other securities(a)	524		—	—	524
Total available-for-sale debt and other securities	$	34,982	2,568	(37)	37,513
Held-to-maturity securities:
Obligations of states and political subdivisions securities	$	9	—	—	9
Asset-backed securities and other debt securities	2		—	—	2
Total held-to-maturity securities	$	11	—	—	11

The amounts reported in the preceding tables excludes accrued interest receivable on investment securities of $90 million and $87 million at March 31, 2021 and December 31, 2020, respectively, which are presented as a component of other assets in the Condensed Consolidated Balance Sheets.

The Bancorp uses investment securities as a means of managing interest rate risk, providing collateral for pledging purposes and for liquidity to satisfy regulatory requirements. As part of managing interest rate risk, the Bancorp acquires securities as a component of its MSR non-qualifying hedging strategy, with net gains or losses recorded in securities (losses) gains, net – non-qualifying hedges on mortgage servicing rights in the Condensed Consolidated Statements of Income.


	For the three months ended March 31,
($ in millions)	2021		2020
Available-for-sale debt and other securities:
Realized gains	$	2	1
Realized losses	(10)		(1)
Impairment losses	(7)		—
Net losses on available-for sale debt and other securities	$	(15)	—
Total trading debt securities gains	$	7	3
Total equity securities gains (losses)(a)	$	9	(24)
Total gains (losses) recognized in income from available-for-sale debt and other securities, trading debt securities and equity securities(b)	$	1	(21)

(b)Excludes $2 of net securities losses for both the three months ended March 31, 2021 and 2020 related to securities held by FTS to facilitate the timely execution of customer transactions. These losses are included in commercial banking revenue and wealth and asset management revenue in the Condensed Consolidated Statements of Income.

The Bancorp recognized impairment losses on available-for-sale debt and other securities of $7 million for the three months ended March 31, 2021. These losses related to certain securities in unrealized loss positions that the Bancorp intended to sell prior to recovery of their amortized cost bases. The Bancorp did not consider these losses to be credit-related.

At both March 31, 2021 and December 31, 2020, the Bancorp completed its evaluation of the available-for-sale debt and other securities in an unrealized loss position and did not recognize an allowance for credit losses. The Bancorp did not recognize provision expense related to available-for-sale debt and other securities in an unrealized loss position for both the three months ended March 31, 2021 and the year ended December 31, 2020.

At March 31, 2021 and December 31, 2020, investment securities with a fair value of $10.8 billion and $11.0 billion, respectively, were pledged to secure borrowings, public deposits, trust funds, derivative contracts and for other purposes as required or permitted by law.

The expected maturity distribution of the Bancorp’s mortgage-backed securities and the contractual maturity distribution of the remainder of the Bancorp’s available-for-sale debt and other securities and held-to-maturity securities as of March 31, 2021 are shown in the following table:


($ in millions)	Available-for-Sale Debt and Other			Held-to-Maturity
	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Debt securities:(a)
Less than 1 year	$	1,037	1,064	4	4
1-5 years	15,093		15,887	4	4
5-10 years	12,529		13,287	—	—
Over 10 years	6,783		6,836	2	2
Other securities	521		521	—	—
Total	$	35,963	37,595	10	10

The following table provides the fair value and gross unrealized losses on available-for-sale debt and other securities in an unrealized loss position, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position as of:


	Less than 12 months			12 months or more		Total
($ in millions)	Fair Value		Unrealized Losses	Fair Value	Unrealized Losses	Fair Value	Unrealized Losses
March 31, 2021
Obligations of states and political subdivisions	$	1	—	—	—	1	—
Agency residential mortgage-backed securities	977		(35)	1	—	978	(35)
Agency commercial mortgage-backed securities	2,162		(97)	—	—	2,162	(97)
Non-agency commercial mortgage-backed securities	3		—	—	—	3	—
Asset-backed securities and other debt securities	407		(9)	831	(20)	1,238	(29)
Total	$	3,550	(141)	832	(20)	4,382	(161)
December 31, 2020
Agency residential mortgage-backed securities	$	426	(8)	1	—	427	(8)
Agency commercial mortgage-backed securities	388		(5)	—	—	388	(5)
Non-agency commercial mortgage-backed securities	2		—	—	—	2	—
Asset-backed securities and other debt securities	520		(7)	603	(17)	1,123	(24)
Total	$	1,336	(20)	604	(17)	1,940	(37)

At both March 31, 2021 and December 31, 2020, $1 million of unrealized losses in the available-for-sale debt and other securities portfolio were represented by non-rated securities.