XML 32 R21.htm IDEA: XBRL DOCUMENT v3.8.0.1
Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2017
Retirement Benefits [Abstract]  
Components of net periodic cost (benefit)
The components of net periodic cost (benefit) are presented in the following table.
Periods ended September 30
Three Months
 
Nine Months
(In millions)
2017
 
2016
 
2017
 
2016
Pension cost (benefit)
 
 
 
 
 
 
 
Interest cost on projected benefit obligation
$
25

 
$
29

 
$
77

 
$
85

Expected return on plan assets
(38
)
 
(41
)
 
(116
)
 
(121
)
Amortization of net actuarial loss
9

 
9

 
27

 
28

Settlement loss
6

 
—

 
8

 
—

Net periodic pension cost (benefit)
$
2

 
$
(3
)
 
$
(4
)
 
$
(8
)