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AFS and HTM Debt Securities
9 Months Ended
Sep. 30, 2019
AFS and HTM Debt Securities [Abstract]  
AFS and HTM Debt Securities
Note 5:  Available-for-Sale and Held-to-Maturity Debt Securities

Table 5.1 provides the amortized cost and fair value by major categories of available-for-sale debt securities, which are carried at fair value, and held-to-maturity debt securities, which are carried at amortized cost. The net unrealized gains (losses) for
available-for-sale debt securities are reported on an after-tax basis as a component of cumulative OCI. Information on debt securities held for trading is included in Note 4 (Trading Activities).
Table 5.1: Amortized Cost and Fair Value
(in millions)
Amortized cost

 
Gross
unrealized
gains

 
Gross
unrealized
losses

 
Fair
value

September 30, 2019
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
16,569

 
2

 
(22
)
 
16,549

Securities of U.S. states and political subdivisions (1)
39,792

 
785

 
(74
)
 
40,503

Mortgage-backed securities:
 
 
 
 
 
 
 
Federal agencies
165,382

 
2,315

 
(162
)
 
167,535

Residential
839

 
14

 

 
853

Commercial
4,190

 
41

 
(5
)
 
4,226

Total mortgage-backed securities
170,411

 
2,370

 
(167
)
 
172,614

Corporate debt securities
5,739

 
198

 
(44
)
 
5,893

Collateralized loan and other debt obligations (2) 
30,968

 
147

 
(105
)
 
31,010

Other (3)
4,616

 
65

 
(14
)
 
4,667

Total available-for-sale debt securities
268,095

 
3,567

 
(426
)
 
271,236

Held-to-maturity debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
44,774

 
690

 
(1
)
 
45,463

Securities of U.S. states and political subdivisions
12,719

 
308

 
(5
)
 
13,022

Federal agency and other mortgage-backed securities (4)
95,637

 
2,120

 
(12
)
 
97,745

Collateralized loan obligations
49

 

 

 
49

Total held-to-maturity debt securities
153,179

 
3,118

 
(18
)
 
156,279

Total
$
421,274

 
6,685

 
(444
)
 
427,515

December 31, 2018
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
13,451

 
3

 
(106
)
 
13,348

Securities of U.S. states and political subdivisions (1)
48,994

 
716

 
(446
)
 
49,264

Mortgage-backed securities:
 
 
 
 
 
 
 
Federal agencies
155,974

 
369

 
(3,140
)
 
153,203

Residential
2,638

 
142

 
(5
)
 
2,775

Commercial
4,207

 
40

 
(22
)
 
4,225

Total mortgage-backed securities
162,819

 
551

 
(3,167
)
 
160,203

Corporate debt securities
6,230

 
131

 
(90
)
 
6,271

Collateralized loan and other debt obligations (2)
35,581

 
158

 
(396
)
 
35,343

Other (3)
5,396

 
100

 
(13
)
 
5,483

Total available-for-sale debt securities
272,471

 
1,659

 
(4,218
)
 
269,912

Held-to-maturity debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
44,751

 
4

 
(415
)
 
44,340

Securities of U.S. states and political subdivisions
6,286

 
30

 
(116
)
 
6,200

Federal agency and other mortgage-backed securities (4)
93,685

 
112

 
(2,288
)
 
91,509

Collateralized loan obligations
66

 

 

 
66

Total held-to-maturity debt securities
144,788

 
146

 
(2,819
)
 
142,115

Total
$
417,259

 
1,805

 
(7,037
)
 
412,027

(1)
Includes investments in tax-exempt preferred debt securities issued by investment funds or trusts that predominantly invest in tax-exempt municipal securities. The cost basis and fair value of these types of securities was $5.8 billion each at September 30, 2019, and $6.3 billion each at December 31, 2018.
(2)
Includes collateralized debt obligations (CDOs) with a cost basis and fair value of $494 million and $609 million, respectively, at September 30, 2019, and $662 million and $800 million, respectively, at December 31, 2018.
(3)
Largely includes asset-backed securities collateralized by student loans.
(4)
Predominantly consists of federal agency mortgage-backed securities at both September 30, 2019 and December 31, 2018.
Gross Unrealized Losses and Fair Value
Table 5.2 shows the gross unrealized losses and fair value of available-for-sale and held-to-maturity debt securities by length of time those individual securities in each category have been in a continuous loss position. Debt securities on which we have taken credit-related other-than-temporary impairment (OTTI) write-
downs are categorized as being “less than 12 months” or “12 months or more” in a continuous loss position based on the point in time that the fair value declined to below the cost basis and not the period of time since the credit-related OTTI write-down.
Table 5.2: Gross Unrealized Losses and Fair Value
 
Less than 12 months
 
 
12 months or more
 
 
Total
 
(in millions)
Gross
unrealized
losses

 
Fair
value

 
Gross
unrealized
losses

 
Fair
value

 
Gross
unrealized
losses

 
Fair
value

September 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
(17
)
 
11,776

 
(5
)
 
3,475

 
(22
)
 
15,251

Securities of U.S. states and political subdivisions
(34
)
 
7,352

 
(40
)
 
2,517

 
(74
)
 
9,869

Mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 

Federal agencies
(42
)
 
12,965

 
(120
)
 
11,668

 
(162
)
 
24,633

Residential

 

 

 

 

 

Commercial
(3
)
 
728

 
(2
)
 
214

 
(5
)
 
942

Total mortgage-backed securities
(45
)
 
13,693

 
(122
)
 
11,882

 
(167
)
 
25,575

Corporate debt securities
(17
)
 
581

 
(27
)
 
253

 
(44
)
 
834

Collateralized loan and other debt obligations
(42
)
 
10,919

 
(63
)
 
9,334

 
(105
)
 
20,253

Other
(6
)
 
1,347

 
(8
)
 
236

 
(14
)
 
1,583

Total available-for-sale debt securities
(161
)
 
45,668

 
(265
)
 
27,697

 
(426
)
 
73,365

Held-to-maturity debt securities:
 
 
 
 
 
 
 
 

 

Securities of U.S. Treasury and federal agencies
(1
)
 
804

 

 

 
(1
)
 
804

Securities of U.S. states and political subdivisions
(1
)
 
200

 
(4
)
 
72

 
(5
)
 
272

Federal agency and other mortgage-backed securities
(10
)
 
2,763

 
(2
)
 
31

 
(12
)
 
2,794

Collateralized loan obligations

 

 

 

 

 

Total held-to-maturity debt securities
(12
)
 
3,767

 
(6
)
 
103

 
(18
)
 
3,870

Total
$
(173
)
 
49,435

 
(271
)
 
27,800

 
(444
)
 
77,235

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
(1
)
 
498

 
(105
)
 
6,204

 
(106
)
 
6,702

Securities of U.S. states and political subdivisions
(73
)
 
9,746

 
(373
)
 
9,017

 
(446
)
 
18,763

Mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
 
Federal agencies
(42
)
 
10,979

 
(3,098
)
 
112,252

 
(3,140
)
 
123,231

Residential
(3
)
 
398

 
(2
)
 
69

 
(5
)
 
467

Commercial
(20
)
 
1,972

 
(2
)
 
79

 
(22
)
 
2,051

Total mortgage-backed securities
(65
)
 
13,349

 
(3,102
)
 
112,400

 
(3,167
)
 
125,749

Corporate debt securities
(64
)
 
1,965

 
(26
)
 
298

 
(90
)
 
2,263

Collateralized loan and other debt obligations
(388
)
 
28,306

 
(8
)
 
553

 
(396
)
 
28,859

Other
(7
)
 
819

 
(6
)
 
159

 
(13
)
 
978

Total available-for-sale debt securities
(598
)
 
54,683

 
(3,620
)
 
128,631

 
(4,218
)
 
183,314

Held-to-maturity debt securities:
 
 
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
(3
)
 
895

 
(412
)
 
41,083

 
(415
)
 
41,978

Securities of U.S. states and political subdivisions
(4
)
 
598

 
(112
)
 
3,992

 
(116
)
 
4,590

Federal agency and other mortgage-backed securities
(5
)
 
4,635

 
(2,283
)
 
77,741

 
(2,288
)
 
82,376

Collateralized loan obligations

 

 

 

 

 

Total held-to-maturity debt securities
(12
)
 
6,128

 
(2,807
)
 
122,816

 
(2,819
)
 
128,944

Total
$
(610
)
 
60,811

 
(6,427
)
 
251,447

 
(7,037
)
 
312,258


We have assessed each debt security with gross unrealized losses included in the previous table for credit impairment. As part of that assessment we evaluated and concluded that we do not intend to sell any of the debt securities and that it is more likely than not that we will not be required to sell prior to recovery of the amortized cost basis. We evaluate, where necessary, whether credit impairment exists by comparing the present value of the expected cash flows to the debt securities’ amortized cost basis.
For descriptions of the factors we consider when analyzing debt securities for impairment, see Note 1 (Summary of Significant Accounting Policies) and Note 5 (Available-for-Sale and Held-to-Maturity Debt Securities) in our 2018 Form 10-K. There were no material changes to our methodologies for assessing impairment in the first nine months of 2019
Table 5.3 shows the gross unrealized losses and fair value of the available-for-sale and held-to-maturity debt securities by those rated investment grade and those rated less than investment grade, according to their lowest credit rating by
Standard & Poor’s Rating Services (S&P) or Moody’s Investors Service (Moody’s). Credit ratings express opinions about the credit quality of a debt security. Debt securities rated investment grade, that is those rated BBB- or higher by S&P or Baa3 or higher by Moody’s, are generally considered by the rating agencies and market participants to be low credit risk. Conversely, debt securities rated below investment grade, labeled as “speculative grade” by the rating agencies, are considered to be distinctively higher credit risk than investment grade debt securities. We have also included debt securities not rated by S&P or Moody’s in the table below based on our internal credit grade of the debt securities (used for credit risk management purposes) equivalent to the credit rating assigned by major credit agencies. The unrealized losses and fair value of unrated debt securities categorized as investment grade based on internal credit grades were $8 million and $3.0 billion, respectively, at September 30, 2019, and $20 million and $5.2 billion, respectively, at December 31, 2018. If an internal credit grade was not assigned, we categorized the debt security as non-investment grade. 
Table 5.3: Gross Unrealized Losses and Fair Value by Investment Grade
 
Investment grade
 
 
Non-investment grade
 
(in millions)
Gross
unrealized
losses

 
Fair
value

 
Gross
unrealized
losses

 
Fair
value

September 30, 2019
 
 
 
 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
(22
)
 
15,251

 

 

Securities of U.S. states and political subdivisions
(70
)
 
9,686

 
(4
)
 
183

Mortgage-backed securities:
 
 
 
 
 
 
 
Federal agencies
(162
)
 
24,633

 

 

Residential

 

 

 

Commercial
(3
)
 
858

 
(2
)
 
84

Total mortgage-backed securities
(165
)
 
25,491

 
(2
)
 
84

Corporate debt securities
(7
)
 
292

 
(37
)
 
542

Collateralized loan and other debt obligations
(105
)
 
20,253

 

 

Other
(6
)
 
1,202

 
(8
)
 
381

Total available-for-sale debt securities
(375
)
 
72,175

 
(51
)
 
1,190

Held-to-maturity debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
(1
)
 
804

 

 

  Securities of U.S. states and political subdivisions
(5
)
 
272

 

 

Federal agency and other mortgage-backed securities
(8
)
 
2,604

 
(4
)
 
190

Collateralized loan obligations

 

 

 

Total held-to-maturity debt securities
(14
)
 
3,680

 
(4
)
 
190

Total
$
(389
)
 
75,855

 
(55
)
 
1,380

December 31, 2018
 
 

 
 
 
 
Available-for-sale debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
(106
)
 
6,702

 

 

Securities of U.S. states and political subdivisions
(425
)
 
18,447

 
(21
)
 
316

Mortgage-backed securities:
 
 
 
 
 
 
 
Federal agencies
(3,140
)
 
123,231

 

 

Residential
(2
)
 
295

 
(3
)
 
172

Commercial
(20
)
 
1,999

 
(2
)
 
52

Total mortgage-backed securities
(3,162
)
 
125,525

 
(5
)
 
224

Corporate debt securities
(17
)
 
791

 
(73
)
 
1,472

Collateralized loan and other debt obligations
(396
)
 
28,859

 

 

Other
(7
)
 
726

 
(6
)
 
252

Total available-for-sale debt securities
(4,113
)
 
181,050

 
(105
)
 
2,264

Held-to-maturity debt securities:
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
(415
)
 
41,978

 

 

Securities of U.S. states and political subdivisions
(116
)
 
4,590

 

 

Federal agency and other mortgage-backed securities
(2,278
)
 
81,977

 
(10
)
 
399

Collateralized loan obligations

 

 

 

Total held-to-maturity debt securities
(2,809
)
 
128,545

 
(10
)
 
399

Total
$
(6,922
)
 
309,595

 
(115
)
 
2,663


Contractual Maturities
Table 5.4 shows the fair value and contractual weighted-average yields (taxable-equivalent basis) of available-for-sale debt securities by remaining contractual maturity. Remaining contractual maturities for mortgage-backed securities (MBS) do
not consider prepayments. Remaining expected maturities will differ from remaining contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature. 
Table 5.4: Available-for Sale Debt Securities - Fair Value by Contractual Maturity
 
 
 
Remaining contractual maturity
 
 
Total

 
 
 
Within one year
 
 
After one year
through five years
 
 
After five years
through ten years
 
 
After ten years
 
(in millions)
amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

September 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available-for-sale debt securities (1): 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fair value:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
16,549

 
1.92
%
 
$
10,035

 
1.74
%
 
$
6,192

 
2.21
%
 
$
47

 
1.84
%
 
$
275

 
2.25
%
Securities of U.S. states and political subdivisions
40,503

 
4.84

 
2,200

 
3.01

 
4,455

 
3.32

 
4,240

 
3.36

 
29,608

 
5.42

Mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Federal agencies
167,535

 
3.47

 

 

 
152

 
3.37

 
1,543

 
2.59

 
165,840

 
3.48

Residential
853

 
2.88

 

 

 

 

 

 

 
853

 
2.88

Commercial
4,226

 
3.57

 

 

 

 

 
340

 
3.50

 
3,886

 
3.58

Total mortgage-backed securities
172,614

 
3.47

 

 

 
152

 
3.37

 
1,883

 
2.75

 
170,579

 
3.48

Corporate debt securities
5,893

 
4.95

 
452

 
5.86

 
2,193

 
4.91

 
2,629

 
4.70

 
619

 
5.50

Collateralized loan and other debt obligations
31,010

 
3.64

 

 

 
1

 
4.66

 
11,548

 
3.73

 
19,461

 
3.59

Other
4,667

 
2.82

 
4

 
5.10

 
696

 
3.49

 
1,358

 
1.96

 
2,609

 
3.09

Total available-for-sale debt securities at fair value
$
271,236

 
3.62
%
 
$
12,691

 
2.10
%
 
$
13,689

 
3.08
%
 
$
21,705

 
3.58
%
 
$
223,151

 
3.75
%
(1)
Weighted-average yields displayed by maturity bucket are weighted based on fair value and predominantly represent contractual coupon rates without effect for any related hedging derivatives.
Table 5.5 shows the amortized cost and weighted-average yields of held-to-maturity debt securities by contractual maturity.
Table 5.5: Held-to-Maturity Debt Securities - Amortized Cost by Contractual Maturity
 
 
 
Remaining contractual maturity
 
 
Total

 
 
 
Within one year
 
 
After one year
through five years
 
 
After five years
through ten years
 
 
After ten years
 
(in millions)
amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

 
Amount

 
Yield

September 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Held-to-maturity debt securities (1): 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortized cost:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
44,774

 
2.12
%
 
$

 
%
 
$
39,530

 
2.11
%
 
$
5,244

 
2.19
%
 
$

 
%
Securities of U.S. states and political subdivisions
12,719

 
4.99

 

 

 
83

 
6.02

 
1,756

 
4.86

 
10,880

 
5.00

Federal agency and other mortgage-backed securities
95,637

 
3.10

 

 

 
15

 
3.53

 

 

 
95,622

 
3.10

Collateralized loan obligations
49

 
3.48

 

 

 

 

 
49

 
3.48

 

 

Total held-to-maturity debt securities at amortized cost
$
153,179

 
2.97
%
 
$

 
%
 
$
39,628

 
2.12
%
 
$
7,049

 
2.86
%
 
$
106,502

 
3.29
%
(1)
Weighted-average yields displayed by maturity bucket are weighted based on amortized cost and predominantly represent contractual coupon rates.

Table 5.6 shows the fair value of held-to-maturity debt securities by contractual maturity.

Table 5.6: Held-to-Maturity Debt Securities - Fair Value by Contractual Maturity
 
 
 
Remaining contractual maturity
 
 
Total

 
Within one year

 
After one year
through five years

 
After five years
through ten years

 
After ten years

(in millions)
amount

 
Amount

 
Amount

 
Amount

 
Amount

September 30, 2019
 
 
 
 
 
 
 
 
 
Held-to-maturity debt securities:
 
 
 
 
 
 
 
 
 
Fair value:
 
 
 
 
 
 
 
 
 
Securities of U.S. Treasury and federal agencies
$
45,463

 

 
40,056

 
5,407

 

Securities of U.S. states and political subdivisions
13,022

 

 
83

 
1,825

 
11,114

Federal agency and other mortgage-backed securities
97,745

 

 
15

 

 
97,730

Collateralized loan obligations
49

 

 

 
49

 

Total held-to-maturity debt securities at fair value
$
156,279

 

 
40,154

 
7,281

 
108,844


Realized Gains and Losses - Available-for-Sale Debt Securities
Table 5.7 shows the gross realized gains and losses on sales and OTTI write-downs related to available-for-sale debt securities.

Table 5.7: Realized Gains and Losses
 
Quarter ended September 30,
 
 
Nine months ended September 30,
 
(in millions)
2019

 
2018

 
2019

 
2018

Gross realized gains
$
21

 
65

 
223

 
139

Gross realized losses
(12
)
 
(3
)
 
(17
)
 
(17
)
OTTI write-downs
(6
)
 
(5
)
 
(58
)
 
(23
)
Net realized gains from available-for-sale debt securities
$
3

 
57

 
148

 
99



Other-Than-Temporarily Impaired Debt Securities
Table 5.8 shows the detail of total OTTI write-downs included in earnings for available-for-sale debt securities. There were no
OTTI write-downs on held-to-maturity debt securities during the first nine months of 2019 and 2018.
Table 5.8: Detail of OTTI Write-downs
 
Quarter ended September 30,
 
 
Nine months ended September 30,
 
(in millions)
2019

 
2018

 
2019

 
2018

Debt securities OTTI write-downs included in earnings:
 
 
 
 
 
 
 
Securities of U.S. states and political subdivisions
$

 

 
33

 
2

Mortgage-backed securities:
 
 
 
 
 
 
 
Residential

 

 

 
2

Commercial

 
1

 
17

 
15

Corporate debt securities
6

 

 
8

 

Other debt securities

 
4

 

 
4

Total debt securities OTTI write-downs included in earnings
$
6

 
5

 
58

 
23



Table 5.9 shows the detail of OTTI write-downs on available-for-sale debt securities included in earnings and the related changes in OCI for the same securities.
Table 5.9: OTTI Write-downs Included in Earnings and the Related Changes in OCI
 
Quarter ended September 30,
 
 
Nine months ended September 30,
 
(in millions)
2019

 
2018

 
2019

 
2018

OTTI on debt securities
 
 
 
 
 
 
 
Recorded as part of gross realized losses:
 
 
 
 
 
 
 
Credit-related OTTI
$

 
5

 
23

 
22

Intent-to-sell OTTI
6

 

 
35

 
1

Total recorded as part of gross realized losses
6

 
5

 
58

 
23

Changes to OCI for losses (reversal of losses) in non-credit-related OTTI (1):
 
 
 
 
 
 
 
Securities of U.S. states and political subdivisions

 

 
(1
)
 
(2
)
Residential mortgage-backed securities

 

 
(1
)
 
(1
)
Commercial mortgage-backed securities
1

 
(5
)
 
2

 
(6
)
Other debt securities
1

 

 
1

 

Total changes to OCI for non-credit-related OTTI
2

 
(5
)
 
1

 
(9
)
Total OTTI losses recorded on debt securities
$
8

 

 
59

 
14

(1)
Represents amounts recorded to OCI for impairment of debt securities, due to factors other than credit, that have also had credit-related OTTI write-downs during the period. Increases represent initial or subsequent non-credit-related OTTI on debt securities. Decreases represent partial to full reversal of impairment due to recoveries in the fair value of debt securities due to non-credit factors.
Table 5.10 presents a rollforward of the OTTI credit loss that has been recognized in earnings as a write-down of available-for-sale debt securities we still own (referred to as “credit-impaired” debt securities) and do not intend to sell. Recognized credit loss
represents the difference between the present value of expected future cash flows discounted using the security’s current effective interest rate and the amortized cost basis of the security prior to considering credit loss.
Table 5.10: Rollforward of OTTI Credit Loss
 
Quarter ended September 30,
 
 
Nine months ended September 30,
 
(in millions)
2019

 
2018

 
2019

 
2018

Credit loss recognized, beginning of period
$
216

 
626

 
562

 
742

Additions:
 
 
 
 
 
 
 
For securities with initial credit impairments

 

 
6

 

For securities with previous credit impairments

 
5

 
17

 
22

Total additions

 
5

 
23

 
22

Reductions:
 
 
 
 
 
 
 
For securities sold, matured, or intended/required to be sold
(22
)
 
(68
)
 
(391
)
 
(199
)
For recoveries of previous credit impairments (1)

 

 

 
(2
)
Total reductions
(22
)
 
(68
)
 
(391
)
 
(201
)
Credit loss recognized, end of period
$
194

 
563

 
194

 
563

(1)
Recoveries of previous credit impairments result from increases in expected cash flows subsequent to credit loss recognition. Such recoveries are reflected prospectively as interest yield adjustments using the effective interest method.