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Reportable Business Segments
 12 Months Ended
Dec. 31, 2016
Segment Reporting [Abstract]  
Reportable Business Segments [Text Block]
Reportable Business Segments

CERC’s determination of reportable business segments considers the strategic operating units under which it manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. CERC uses operating income as the measure of profit or loss for its business segments other than Midstream Investments, where it uses equity in earnings.

CERC’s reportable business segments include the following: Natural Gas Distribution, Energy Services, Midstream Investments and Other Operations.  Natural Gas Distribution consists of intrastate natural gas sales to, and natural gas transportation and distribution for, residential, commercial, industrial and institutional customers. Energy Services represents CERC’s non-rate regulated gas sales and services operations. Midstream Investments consists of CERC’s equity investment in Enable. The Other Operations business segment includes unallocated corporate costs and inter-segment eliminations.

Long-lived assets include net property, plant and equipment, goodwill and other intangibles and equity investments in unconsolidated subsidiaries. Intersegment sales are eliminated in consolidation.

Financial data for business segments and products and services are as follows:

 
Revenues
from
External
Customers
 
Intersegment
Revenues
 
Depreciation
and
Amortization
 
Operating
Income
(Loss)
 
Total Assets (1)
 
Expenditures
for Long-
Lived Assets
 
(in millions)
As of and for the year ended December 31, 2016:
 

 
 

 
 

 
 

 
 

 
 

Natural Gas Distribution
$
2,380

 
$
29

 
$
242

 
$
303

 
$
6,099

 
$
510

Energy Services
2,073

 
26

 
7

 
20

 
1,102

 
5

Midstream Investments (2)
—

 
—

 
—

 
—

 
2,505

 
—

Other
1

 
—

 
—

 
(5
)
 
75

 
—

Reconciling Eliminations
—

 
(55
)
 
—

 
—

 
(563
)
 
—

Consolidated
$
4,454

 
$
—

 
$
249

 
$
318

 
$
9,218

 
$
515

As of and for the year ended December 31, 2015:
 

 
 

 
 

 
 

 
 

 
 

Natural Gas Distribution
$
2,603

 
$
29

 
$
222

 
$
273

 
$
5,657

 
$
601

Energy Services
1,924

 
33

 
5

 
42

 
857

 
5

Midstream Investments (2)
—

 
—

 
—

 
—

 
2,594

 
—

Other
—

 
—

 
—

 
(2
)
 
777

 
—

Reconciling Eliminations
—

 
(62
)
 
—

 
—

 
(744
)
 
—

Consolidated
$
4,527

 
$
—

 
$
227

 
$
313

 
$
9,141

 
$
606

As of and for the year ended December 31, 2014:
 

 
 

 
 

 
 

 
 

 
 

Natural Gas Distribution
$
3,271

 
$
30

 
$
201

 
$
287

 
$
5,464

 
$
525

Energy Services
3,095

 
84

 
5

 
52

 
978

 
3

Midstream Investments (2)
—

 
—

 
—

 
—

 
4,521

 
—

Other
1

 
—

 
—

 
(4
)
 
1,031

 
—

Reconciling Eliminations
—

 
(114
)
 
—

 
—

 
(964
)
 
—

Consolidated
$
6,367

 
$
—

 
$
206

 
$
335

 
$
11,030

 
$
528


(1)
Amounts for 2015 and 2014 have been restated to reflect the adoption of ASU 2015-03.

(2)
Midstream Investments’ equity earnings (losses) are as follows:
 
 
Year Ended December 31,
 
 
2016
 
2015
 
2014
 
 
(in millions)
Enable (a)
 
$
208

 
$
(1,633
)
 
$
303

SESH
 
—

 
—

 
5

  Total
 
$
208

 
$
(1,633
)
 
$
308


(a)
These amounts include impairment charges totaling $1,846 million composed of CERC’s impairment of its equity method investment in Enable of $1,225 million and CERC’s share, $621 million, of impairment charges Enable recorded for goodwill and long-lived assets for the year ended December 31, 2015. This impairment is offset by $213 million of earnings for the year ended December 31, 2015.



 
Year Ended December 31,
Revenues by Products and Services:
2016
 
2015
 
2014
 
(in millions)
Retail gas sales
$
3,329

 
$
3,725

 
$
5,049

Wholesale gas sales
977

 
657

 
1,159

Gas transportation and processing
23

 
26

 
38

Energy products and services
125

 
119

 
121

Total
$
4,454

 
$
4,527

 
$
6,367