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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Operating Leases of Lessee Disclosure [Table Text Block]
The following table sets forth information concerning CERC’s obligations under non-cancelable long-term operating leases as of December 31, 2015, which primarily consist of rental agreements for building space, data processing equipment, compression equipment and rights-of-way:
 
(in millions)
2016
$
5

2017
3

2018
3

2019
3

2020
2

2021 and beyond
7

Total
$
23