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Employee Benefits (Tables)
 9 Months Ended
Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of net periodic cost (income)
The following table sets forth the benefit cost (income) related to the Company's pension plans for the three and nine months ended September 30, 2014 and 2013.
 
Pension Benefit Cost (Income)
 
Three Months Ended September 30,
Nine Months Ended September 30,
 
2014
2013
2014
2013
 
(in millions)
Service cost
$
1

$
1

$
1

$
1

Interest cost
7

7

21

15

Expected return on plan assets
(10
)
(11
)
(28
)
(22
)
Amortization of net loss
—

1

—

2

Settlement losses
—

—

1

—

Net periodic cost (income)
$
(2
)
$
(2
)
$
(5
)
$
(4
)