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COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]  
Contractual commitments under non-cancelable operating leases and purchase contracts
The following table summarizes our contractual commitments under non-cancelable operating leases and purchase contracts as of December 31, 2013:

 
Operating Leases
 
Purchase Commitments
 
($ in millions)
2014
$
52.8

 
$
79.5

2015
44.7

 
20.9

2016
39.0

 
2.9

2017
31.1

 
—

2018
25.0

 
—

Thereafter
44.4

 
—

Total commitments
$
237.0

 
$
103.3