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Employee Benefit Plans
 6 Months Ended
Jun. 30, 2019
Employee Benefit Plans [Abstract]  
Employee Benefit Plans EMPLOYEE BENEFIT PLANS

Pension and Postretirement Plans

As described in Note 11 Employee Benefit Plans in our 2018 Form 10-K, we have a noncontributory, qualified defined benefit pension plan covering eligible employees. Benefits are determined using a cash balance formula where earnings credits are a percentage of eligible compensation and are subject to a minimum annual amount. Any pension contributions to the plan are based on an actuarially determined amount necessary to fund total benefits payable to plan participants.

We also maintain nonqualified supplemental retirement plans for certain employees and provide certain health care and life insurance benefits for qualifying retired employees (postretirement benefits) through various plans. We reserve the right to terminate or make changes to these plans at any time.
The components of our net periodic benefit cost for the three and six months ended June 30, 2019 and 2018, respectively, were as follows:
 
Table 59: Components of Net Periodic Benefit Cost (a)
 
Qualified Pension Plan
 
 
Nonqualified Pension Plan
 
 
Postretirement Benefits
 
Three months ended June 30
In millions
2019

 
2018

 
 
2019

 
2018

 
 
2019

 
2018

 
Net periodic cost consists of:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Service cost
$
29

 
$
30

 
 
 
 


 
 
$
1

 
$
1

 
Interest cost
47

 
42

 
 
$
3

 
$
3

 
 
4

 
3

 
Expected return on plan assets
(71
)
 
(77
)
 
 
 
 

 
 
(2
)
 
(2
)
 
Amortization of prior service credit
1

 
1

 
 
 
 

 
 
 
 


 
Amortization of actuarial losses
3

 


 
 
1

 
1

 
 
 
 

 
Net periodic cost/(benefit)
$
9

 
$
(4
)
 
 
$
4

 
$
4

 
 
$
3

 
$
2

 

 
Qualified Pension Plan
 
 
Nonqualified Pension Plan
 
 
Postretirement Benefits
 
Six months ended June 30
In millions
2019

 
2018

 
 
2019

 
2018

 
 
2019

 
2018

 
Net periodic cost consists of:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Service cost
$
57

 
$
58

 
 
$
1

 
$
1

 
 
$
2

 
$
2

 
Interest cost
93

 
85

 
 
5

 
5

 
 
7

 
6

 
Expected return on plan assets
(143
)
 
(153
)
 
 
 
 

 
 
(3
)
 
(3
)
 
Amortization of prior service credit
2

 
1

 
 
 
 

 
 
 
 


 
Amortization of actuarial losses
3

 


 
 
2

 
2

 
 
 
 
 
 
Net periodic cost/(benefit)
$
12

 
$
(9
)
 
 
$
8

 
$
8

 
 
$
6

 
$
5

 

(a)
The service cost component is included in Personnel expense on the Consolidated Income Statement. All other components are included in Other noninterest expense on the Consolidated Income Statement.