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Debt securities available-for-sale (Tables)

3 Months Ended

Mar. 31, 2022

Investments [Abstract]

Debt Securities, Available-For-Sale

		At March 31, 2022
				Gross		Gross				Weighted
		Amortized		unrealized		unrealized		Fair		average
(In thousands)		cost		gains		losses		value		yield
U.S. Treasury securities
	Within 1 year	$	3,330,374	$	7,509	$	3,844	$	3,334,039	0.98	%
	After 1 to 5 years		10,844,508		5,396		416,936		10,432,968	1.17
	After 5 to 10 years		4,704,946		-		292,842		4,412,104	1.32
Total U.S. Treasury securities			18,879,828		12,905		713,622		18,179,111	1.18
Obligations of U.S. Government sponsored entities
	Within 1 year		70		1		-		71	5.59
Total obligations of U.S. Government sponsored entities			70		1		-		71	5.59
Collateralized mortgage obligations - federal agencies
	After 1 to 5 years		2,062		-		18		2,044	2.12
	After 5 to 10 years		47,568		6		1,191		46,383	1.56
	After 10 years		146,811		714		4,737		142,788	2.19
Total collateralized mortgage obligations - federal agencies			196,441		720		5,946		191,215	2.04
Mortgage-backed securities
	Within 1 year		3		-		-		3	2.11
	After 1 to 5 years		65,835		256		413		65,678	2.17
	After 5 to 10 years		739,719		668		9,398		730,989	2.06
	After 10 years		7,789,911		9,667		606,841		7,192,737	1.65
Total mortgage-backed securities			8,595,468		10,591		616,652		7,989,407	1.68
Other
	After 1 to 5 years		109		2		-		111	3.62
Total other			109		2		-		111	3.62
Total debt securities available-for-sale[1]		$	27,671,916	$	24,219	$	1,336,220	$	26,359,915	1.34	%
[1]	Includes $17.7 billion pledged to secure government and trust deposits, assets sold under agreements to repurchase, credit facilities and loan servicing agreements that the secured parties are not permitted to sell or repledge the collateral, of which $16.6 billion serve as collateral for public funds.

		At December 31, 2021
				Gross		Gross				Weighted
		Amortized		unrealized		unrealized		Fair		average
(In thousands)		cost		gains		losses		value		yield
U.S. Treasury securities
	Within 1 year	$	1,225,558	$	13,556	$	69	$	1,239,045	2.33	%
	After 1 to 5 years		10,059,163		98,808		65,186		10,092,785	1.18
	After 5 to 10 years		4,563,265		739		36,804		4,527,200	1.22
Total U.S. Treasury securities			15,847,986		113,103		102,059		15,859,030	1.27
Obligations of U.S. Government sponsored entities
	Within 1 year		70		-		-		70	5.63
Total obligations of U.S. Government sponsored entities			70		-		-		70	5.63
Collateralized mortgage obligations - federal agencies
	After 1 to 5 years		2,433		42		-		2,475	2.16
	After 5 to 10 years		43,241		295		6		43,530	1.54
	After 10 years		172,176		3,441		357		175,260	2.13
Total collateralized mortgage obligations - federal agencies			217,850		3,778		363		221,265	2.01
Mortgage-backed securities
	Within 1 year		11		1		-		12	4.79
	After 1 to 5 years		65,749		2,380		11		68,118	2.23
	After 5 to 10 years		665,600		17,998		5		683,593	1.97
	After 10 years		8,263,835		68,128		195,910		8,136,053	1.67
Total mortgage-backed securities			8,995,195		88,507		195,926		8,887,776	1.69
Other
	After 1 to 5 years		123		5		-		128	3.62
Total other			123		5		-		128	3.62
Total debt securities available-for-sale[1]		$	25,061,224	$	205,393	$	298,348	$	24,968,269	1.42	%
[1]	Includes $22.0 billion pledged to secure government and trust deposits, assets sold under agreements to repurchase, credit facilities and loan servicing agreements that the secured parties are not permitted to sell or repledge the collateral, of which $20.9 billion serve as collateral for public funds.

Debt Securities Available For Sale Unrealized Loss Position Fair Value

		At March 31, 2022
		Less than 12 months				12 months or more				Total
				Gross				Gross				Gross
		Fair		unrealized		Fair		unrealized		Fair		unrealized
(In thousands)		value		losses		value		losses		value		losses
U.S. Treasury securities		$	15,249,412	$	681,815	$	553,050	$	31,807	$	15,802,462	$	713,622
Collateralized mortgage obligations - federal agencies			157,384		5,854		997		92		158,381		5,946
Mortgage-backed securities			2,763,780		126,822		4,613,565		489,830		7,377,345		616,652
Total debt securities available-for-sale in an unrealized loss position		$	18,170,576	$	814,491	$	5,167,612	$	521,729	$	23,338,188	$	1,336,220

		At December 31, 2021
		Less than 12 months				12 months or more				Total
				Gross				Gross				Gross
		Fair		unrealized		Fair		unrealized		Fair		unrealized
(In thousands)		value		losses		value		losses		value		losses
U.S. Treasury securities		$	9,590,448	$	102,059	$	-	$	-	$	9,590,448	$	102,059
Collateralized mortgage obligations - federal agencies			35,533		334		1,084		29		36,617		363
Mortgage-backed securities			5,767,556		170,614		595,051		25,312		6,362,607		195,926
Total debt securities available-for-sale in an unrealized loss position		$	15,393,537	$	273,007	$	596,135	$	25,341	$	15,989,672	$	298,348

X

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

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- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455

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