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Fair Values of Assets and Liabilities (Tables)
9 Months Ended
Sep. 30, 2017
Fair Value Disclosures [Abstract]  
Valuation Assumption Ranges for MSRs

The following table shows the significant valuation assumption ranges for MSRs at September 30, 2017:

 

     Minimum     Maximum     Average  

Expected prepayment

    6     18     10

Option adjusted spread

    7       10       8  

 

Valuation Assumption Ranges for Derivative Commitments

The following table shows the significant valuation assumption ranges for the Company’s derivative commitments to purchase and originate mortgage loans at September 30, 2017:

 

     Minimum     Maximum     Average  

Expected loan close rate

    5     100     79

Inherent MSR value (basis points per loan)

    (38     179       117  

 

Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes the balances of assets and liabilities measured at fair value on a recurring basis:

 

(Dollars in Millions)   Level 1      Level 2      Level 3      Netting     Total  

September 30, 2017

            

Available-for-sale securities

            

U.S. Treasury and agencies

  $ 21,321      $ 747      $      $     $ 22,068  

Mortgage-backed securities

            

Residential

            

Agency

           39,553                     39,553  

Commercial

            

Agency

           8                     8  

Asset-backed securities

            

Other

           425                     425  

Obligations of state and political subdivisions

           5,681                     5,681  

Other investments

    37                            37  

Total available-for-sale

    21,358        46,414                     67,772  

Mortgage loans held for sale

           3,754                     3,754  

Mortgage servicing rights

                  2,598              2,598  

Derivative assets

    1        1,836        570        (727     1,680  

Other assets

    258        1,302                     1,560  

Total

  $ 21,617      $ 53,306      $ 3,168      $ (727   $ 77,364  

Derivative liabilities

  $      $ 2,032      $ 317      $ (1,182   $ 1,167  

Short-term borrowings and other liabilities (c)

    138        1,077                     1,215  

Total

  $ 138      $ 3,109      $ 317      $ (1,182   $ 2,382  

December 31, 2016

            

Available-for-sale securities

            

U.S. Treasury and agencies

  $ 16,355      $ 772      $      $     $ 17,127  

Mortgage-backed securities

            

Residential

            

Agency

           43,138                     43,138  

Non-agency

            

Prime (a)

                  242              242  

Non-prime (b)

                  195              195  

Commercial

            

Agency

           15                     15  

Asset-backed securities

            

Other

           481        2              483  

Obligations of state and political subdivisions

           5,039                     5,039  

Corporate debt securities

                  9              9  

Other investments

    36                            36  

Total available-for-sale

    16,391        49,445        448              66,284  

Mortgage loans held for sale

           4,822                     4,822  

Mortgage servicing rights

                  2,591              2,591  

Derivative assets

           2,416        554        (984     1,986  

Other assets

    183        1,137                     1,320  

Total

  $ 16,574      $ 57,820      $ 3,593      $ (984   $ 77,003  

Derivative liabilities

  $ 7      $ 2,469      $ 383      $ (1,185   $ 1,674  

Short-term borrowings and other liabilities (c)

    142        938                     1,080  

Total

  $ 149      $ 3,407      $ 383      $ (1,185   $ 2,754  

 

(a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, loan type, prevalence of low documentation loans) and deal performance (such as pool delinquencies and security market spreads).
(b) Includes all securities not meeting the conditions to be designated as prime.
(c) Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.
Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended September 30:

 

(Dollars in Millions)   Beginning
of Period
Balance
    Net Gains
(Losses)
Included in
Net Income
    Net Gains
(Losses)
Included in
Other
Comprehensive
Income (Loss)
    Purchases     Sales     Principal
Payments
    Issuances     Settlements     End
of Period
Balance
    Net Change in
Unrealized
Gains (Losses)
Relating to Assets
and Liabilities
Held at End of Period
 

2017

                   

Mortgage servicing rights

  $ 2,582     $ (103 ) (c)    $     $ 4     $     $     $ 115  (f)    $     $ 2,598     $ (103 ) (c) 

Net derivative assets and liabilities

    240       111   (d)                  (3                 (95     253       41   (g) 

2016

                   

Available-for-sale securities

                   

Mortgage-backed securities

                   

Residential non-agency

                   

Prime (a)

  $ 280     $     $     $     $     $ (21   $     $     $ 259     $  

Non-prime (b)

    216             (1                 (9                 206       (1

Asset-backed securities

                   

Other

    2                                                 2        

Corporate debt securities

    9                                                 9        

Total available-for-sale

    507             (1 ) (e)                  (30                 476       (1

Mortgage servicing rights

    2,056       (85 ) (c)            18                   142  (f)            2,131       (85 ) (c) 

Net derivative assets and liabilities

    1,080       84   (h)                  (2                 (231     931       16   (i) 

 

(a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, loan type, prevalence of low documentation loans) and deal performance (such as pool delinquencies and security market spreads).
(b) Includes all securities not meeting the conditions to be designated as prime.
(c) Included in mortgage banking revenue.
(d) Approximately $18 million included in other noninterest income and $93 million included in mortgage banking revenue.
(e) Included in changes in unrealized gains and losses on securities available-for-sale.
(f) Represents MSRs capitalized during the period.
(g) Approximately $9 million included in other noninterest income and $32 million included in mortgage banking revenue.
(h) Approximately $(73) million included in other noninterest income and $157 million included in mortgage banking revenue.
(i) Approximately $(81) million included in other noninterest income and $97 million included in mortgage banking revenue.

 

The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30:

 

(Dollars in Millions)   Beginning
of Period
Balance
    Net Gains
(Losses)
Included in
Net Income
    Net Gains
(Losses)
Included in
Other
Comprehensive
Income (Loss)
    Purchases     Sales     Principal
Payments
    Issuances     Settlements     End
of Period
Balance
    Net Change in
Unrealized
Gains (Losses)
Relating to Assets
and Liabilities
Held at End of Period
 

2017

                   

Available-for-sale securities

                   

Mortgage-backed securities

                   

Residential non-agency

                   

Prime (a)

  $ 242     $     $ (2   $     $ (234   $ (6   $     $     $     $  

Non-prime (b)

    195             (17           (175     (3                        

Asset-backed securities

                   

Other

    2                         (2                              

Corporate debt securities

    9             2             (11                              

Total available-for-sale

    448         (c)      (17 ) (f)            (422     (9                        

Mortgage servicing rights

    2,591       (322 ) (d)            10                   319   (g)            2,598       (322 ) (d) 

Net derivative assets and liabilities

    171       372   (e)            1       (8)                 (283)       253       87   (h) 

2016

                   

Available-for-sale securities

                   

Mortgage-backed securities

                   

Residential non-agency

                   

Prime (a)

  $ 318     $ (1   $     $     $     $ (58   $     $     $ 259     $  

Non-prime (b)

    240       (1     (4                 (29                 206       (4

Asset-backed securities

                   

Other

    2                                                 2        

Corporate debt securities

    9                                                 9        

Total available-for-sale

    569       (2 ) (c)      (4 ) (f)                  (87                 476       (4

Mortgage servicing rights

    2,512       (785 ) (d)            32                   372   (g)            2,131       (785 ) (d) 

Net derivative assets and liabilities

    498       1,047   (i)            1       (5                 (610     931       494   (j) 

 

(a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, loan type, prevalence of low documentation loans) and deal performance (such as pool delinquencies and security market spreads).
(b) Includes all securities not meeting the conditions to be designated as prime.
(c) Included in securities gains (losses).
(d) Included in mortgage banking revenue.
(e) Approximately $128 million included in other noninterest income and $244 million included in mortgage banking revenue.
(f) Included in changes in unrealized gains and losses on securities available-for-sale.
(g) Represents MSRs capitalized during the period.
(h) Approximately $55 million included in other noninterest income and $32 million included in mortgage banking revenue.
(i) Approximately $560 million included in other noninterest income and $487 million included in mortgage banking revenue.
(j) Approximately $397 million included in other noninterest income and $97 million included in mortgage banking revenue.
Adjusted Carrying Values for Assets Measured at Fair Value on Nonrecurring Basis

The following table summarizes the balances as of the measurement date of assets measured at fair value on a nonrecurring basis, and still held as of the reporting date:

 

    September 30, 2017              December 31, 2016  
(Dollars in Millions)   Level 1      Level 2      Level 3      Total              Level 1      Level 2      Level 3      Total  

Loans (a)

  $      $      $ 76      $ 76           $      $      $ 59      $ 59  

Other assets (b)

                  30        30                               60        60  

 

(a) Represents the carrying value of loans for which adjustments were based on the fair value of the collateral, excluding loans fully charged-off.
(b) Primarily represents the fair value of foreclosed properties that were measured at fair value based on an appraisal or broker price opinion of the collateral subsequent to their initial acquisition.
Losses Recognized Related to Nonrecurring Fair Value Measurements of Individual Assets or Portfolios

The following table summarizes losses recognized related to nonrecurring fair value measurements of individual assets or portfolios:

 

    Three Months Ended
September 30,
             Nine Months Ended
September 30,
 
(Dollars in Millions)         2017            2016                    2017            2016  

Loans (a)

  $ 45      $ 45           $ 120      $ 156  

Other assets (b)

    3        6                 15        25  

 

(a) Represents write-downs of loans which were based on the fair value of the collateral, excluding loans fully charged-off.
(b) Primarily represents related losses of foreclosed properties that were measured at fair value subsequent to their initial acquisition.
Differences Between Aggregate Fair Value Carrying Amount of MLHFS for which Fair Value Option has been Elected and Aggregate Unpaid Principal Amount Contractually Obligated to Receive at Maturity

The following table summarizes the differences between the aggregate fair value carrying amount of MLHFS for which the fair value option has been elected and the aggregate unpaid principal amount that the Company is contractually obligated to receive at maturity:

 

    September 30, 2017             December 31, 2016  
(Dollars in Millions)   Fair
Value
Carrying
Amount
     Aggregate
Unpaid
Principal
     Carrying
Amount Over
(Under) Unpaid
Principal
            Fair
Value
Carrying
Amount
     Aggregate
Unpaid
Principal
     Carrying
Amount Over
(Under) Unpaid
Principal
 

Total loans

  $ 3,754      $ 3,638      $ 116          $ 4,822      $ 4,763      $ 59  

Nonaccrual loans

    1        2        (1          2        3        (1

Loans 90 days or more past due

                                 1        1         
Estimated Fair Values of Financial Instruments

The estimated fair values of the Company’s financial instruments are shown in the table below:

 

    September 30, 2017     December 31, 2016  
    Carrying
Amount
          Fair Value            Carrying
Amount
          Fair Value  
(Dollars in Millions)       Level 1     Level 2     Level 3     Total               Level 1     Level 2     Level 3     Total  

Financial Assets

                                                                                                       

Cash and due from banks

  $ 20,540       $ 20,540     $     $     $ 20,540         $ 15,705       $ 15,705     $     $     $ 15,705  

Federal funds sold and securities purchased under resale agreements

    78               78             78           138               138             138  

Investment securities held-to-maturity

    44,018         4,668       39,074       16       43,758           42,991         4,605       37,810       20       42,435  

Loans held for sale (a)

    3                     3       3           4                     4       4  

Loans

    274,811                     278,946       278,946           269,394                     273,422       273,422  

Other financial instruments

    2,449               1,037       1,419       2,456           2,362               920       1,449       2,369  

Financial Liabilities

                           

Deposits

    342,589               342,411             342,411           334,590               334,361             334,361  

Short-term borrowings (b)

    14,641               14,430             14,430           12,891               12,706             12,706  

Long-term debt

    34,515               34,842             34,842           33,323               33,678             33,678  

Other liabilities

    1,659                           1,659       1,659               1,702                           1,702       1,702  

 

(a) Excludes mortgages held for sale for which the fair value option under applicable accounting guidance was elected.
(b) Excludes the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.