XML 47 R35.htm IDEA: XBRL DOCUMENT v3.8.0.1
Pension Plans and Other Postretirement Benefits (Tables)
 3 Months Ended
Mar. 31, 2018
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost Table
The following summarizes the Company’s pension and other postretirement benefit cost:
 
Pension Benefits
 
Other Benefits
millions
2018
 
2017
 
2018
 
2017
Three Months Ended March 31
 
 
 
 
 
 
 
Service cost
$
23

 
$
21

 
$
—

 
$
—

Interest cost
19

 
21

 
3

 
3

Expected (return) loss on plan assets
(21
)
 
(21
)
 
—

 
—

Amortization of net actuarial loss (gain)
7

 
6

 
—

 
—

Amortization of net prior service cost (credit)
—

 
—

 
(6
)
 
(6
)
Settlement expense
—

 
3

 
—

 
—

Termination benefits expense
—

 
4

 
—

 
—

Net periodic benefit cost (1)
$
28

 
$
34

 
$
(3
)
 
$
(3
)

__________________________________________________________________
(1) 
The service cost component of net periodic benefit cost is included in G&A; oil and gas operating expense; gathering, processing, and marketing expense; and exploration expense, and all other components of net periodic benefit cost are included in other (income) expense on the Company’s Consolidated Statements of Income.