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EMPLOYEE BENEFIT PLANS
 3 Months Ended
Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]  
EMPLOYEE BENEFIT PLANS
EMPLOYEE BENEFIT PLANS

Net periodic benefit costs for the qualified defined-benefit plans included the following components for the three months ended March 31, 2017 (in millions): 
 
Three Months Ended March 31,
 
2017
 
2016
Service cost
$
10

 
$
9

Interest cost
18

 
18

Expected return on assets
(27
)
 
(27
)
Recognized actuarial loss
7

 
6

Total
$
8

 
$
6