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Regulatory Accounting
12 Months Ended
Dec. 31, 2016
Regulatory Matters [Abstract]  
Regulatory Accounting [Text Block]
Regulatory Accounting

The following is a list of regulatory assets/liabilities reflected on CERC’s Consolidated Balance Sheets as of December 31, 2016 and 2015:
 
December 31,
 
2016
 
2015
 
(in millions)
Regulatory assets in other long-term assets (1)
$
125

 
$
105

Regulatory liabilities
(769
)
 
(734
)
Net
$
(644
)
 
$
(629
)


(1)
NGD’s actuarially determined pension and other postemployment expense in excess of the amount being recovered through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $6 million and $5 million as of December 31, 2016 and 2015, respectively, were not earning a return. Other regulatory assets that are not earning a return were not material as of December 31, 2016 or 2015.