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Operating Leases (Notes)
12 Months Ended
Dec. 31, 2014
Leases [Abstract]  
Operating Leases
OPERATING LEASES
Lessee — The Company leases various assets under operating leases, including coal railcars, computers, vehicles and other equipment. The lease arrangements expire at various dates through 2046.
Future minimum lease payments under non-cancelable leases at December 31, 2014 were:
 
Operating
 
Leases
 
(In millions)
2015
$
28

2016
22

2017
18

2018
15

2019
10

Thereafter
40

Total minimum lease payments
$
133


Rental expense for operating leases was $26 million in 2014, $28 million in 2013, and $29 million in 2012.