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Goodwill and Mortgage Servicing Rights (Tables)
 3 Months Ended
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Mortgage Servicing Rights
Table 53: Mortgage Servicing Rights
 
Commercial MSRs
 
Residential MSRs
 
In millions
2020

2019

 
2020

2019

 
January 1
$
649

$
726

 
$
995

$
1,257

 
Additions:
 
 
 
 
 
 
From loans sold with servicing retained
11

7

 
10

7

 
Purchases
19

19

 
18

6

 
Changes in fair value due to:
 
 
 
 
 
 
Time and payoffs (a)
(35
)
(38
)
 
(39
)
(33
)
 
Other (b)
(167
)
(33
)
 
(379
)
(106
)
 
March 31
$
477

$
681

 
$
605

$
1,131

 
Related unpaid principal balance at March 31
$
225,769

$
186,946

 
$
118,104

$
123,079

 
Servicing advances at March 31
$
145

$
243

 
$
99

$
138

 
(a)
Represents decrease in MSR value due to passage of time, including the impact from both regularly scheduled loan principal payments and loans that were paid down or paid off during the period.
(b)
Represents MSR value changes resulting primarily from market-driven changes in interest rates.
Commercial Mortgage Loan Servicing Assets - Key Valuation Assumptions
Table 54: Commercial Mortgage Servicing Rights – Key Valuation Assumptions
Dollars in millions
March 31
2020

 
December 31
2019

 
Fair value
$
477

 
$
649

 
Weighted-average life (years)
4.1

 
4.1

 
Weighted-average constant prepayment rate
4.51
%
 
4.56
%
 
Decline in fair value from 10% adverse change
$
8

 
$
9

 
Decline in fair value from 20% adverse change
$
16

 
$
17

 
Effective discount rate
7.57
%
 
7.91
%
 
Decline in fair value from 10% adverse change
$
12

 
$
17

 
Decline in fair value from 20% adverse change
$
24

 
$
34

 
Residential Mortgage Loan Servicing Assets - Key Valuation Assumptions
Table 55: Residential Mortgage Servicing Rights – Key Valuation Assumptions
Dollars in millions
March 31
2020

 
December 31
2019

 
Fair value
$
605

 
$
995

 
Weighted-average life (years)
2.9

 
5.2

 
Weighted-average constant prepayment rate
27.14
%
 
13.51
%
 
Decline in fair value from 10% adverse change
$
43

 
$
46

 
Decline in fair value from 20% adverse change
$
81

 
$
89

 
Weighted-average option adjusted spread
770

bps
769

bps
Decline in fair value from 10% adverse change
$
13

 
$
27

 
Decline in fair value from 20% adverse change
$
26

 
$
52