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Employee Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Net Periodic Benefit Cost (Credit)
The components of net periodic benefit cost are as follows.

Net periodic benefit cost (credit)
 
Quarter ended
 
 
 
March 31, 2014
 
 
March 31, 2013
(in millions)
Domestic pension benefits

Foreign pension benefits

Health care benefits

 
 
Domestic pension benefits

Foreign pension benefits

Health care benefits

Service cost
$
14

$
9

$
1

 
 
$
16

$
9

$
1

Interest cost
45

11

3

 
 
43

10

2

Expected return on assets
(79
)
(15
)
(2
)
 
 
(73
)
(12
)
(2
)
Other
28

4

—

 
 
47

4

1

Net periodic benefit cost
$
8

$
9

$
2

 
 
$
33

$
11

$
2