XML 89 R23.htm IDEA: XBRL DOCUMENT v2.4.1.9
EMPLOYEE BENEFIT PLANS (TABLES)
 3 Months Ended
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Schedule of Net Benefit Costs
Net periodic benefit costs recognized included the following components for the three months ended March 31, 2015 (in millions): 
 
Three Months Ended March 31,
 
Qualified
 
Postretirement Medical
 
2015
 
2014
 
2015
 
2014
Service cost
$
10

 
$
8

 
$
1

 
$
1

Interest cost
21

 
20

 
1

 
1

Expected return on assets
(31
)
 
(29
)
 
—

 
—

Recognized actuarial loss (gain)
7

 
3

 
(3
)
 
(1
)
Total
$
7

 
$
2

 
$
(1
)
 
$
1