Revenue Recognition

The Registrants adopted ASC 606 and all related amendments on January 1, 2018 using the modified retrospective method for those contracts that were not completed as of the date of adoption. Application of the new revenue standard did not result in a cumulative effect adjustment to the opening balance of retained earnings. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The adoption of the new standard did not have a material impact on the Registrants’ financial position, results of operations or cash flows.

In accordance with ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Registrants expect to be entitled to receive in exchange for these goods or services. Contract assets and liabilities are not material.

The following tables disaggregate revenues by reportable business segment and major source:

CenterPoint Energy



	Three Months Ended June 30,
	2018														2017
	Electric Transmission & Distribution (1)			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total			Electric Transmission & Distribution (1)			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total
	(in millions)
Revenue from contracts	$	860		$	509		$	78		$	2	$	1,449		$	758		$	463		$	116		$	1	$	1,338
Derivatives income	—			—			782			—		782			—			—			815			—		815
Other (3)	(6		)	(14		)	—			2		(18		)	(6		)	14			—			2		10
Eliminations	—			(8		)	(19		)	—		(27		)	—			(7		)	(13		)	—		(20		)
Total revenues	$	854		$	487		$	841		$	4	$	2,186		$	752		$	470		$	918		$	3	$	2,143

	Six Months Ended June 30,
	2018														2017
	Electric Transmission & Distribution (1)			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total			Electric Transmission & Distribution (1)			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total
	(in millions)
Revenue from contracts	$	1,621		$	1,695		$	256		$	3	$	3,575		$	1,402		$	1,388		$	258		$	2	$	3,050
Derivatives income	(4		)	—			1,889			—		1,885			1			—			1,869			—		1,870
Other (3)	(12		)	(47		)	—			5		(54		)	(12		)	5			—			5		(2		)
Eliminations	—			(18		)	(47		)	—		(65		)	—			(16		)	(24		)	—		(40		)
Total revenues	$	1,605		$	1,630		$	2,098		$	8	$	5,341		$	1,391		$	1,377		$	2,103		$	7	$	4,878

Houston Electric



	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in millions)
Revenue from contracts	$	860		$	758		$	1,621		$	1,402
Other (3)	(6		)	(6		)	(12		)	(12		)
	$	854		$	752		$	1,609		$	1,390

CERC



	Three Months Ended June 30,
	2018											2017
	Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)			Total
	(in millions)
Revenue from contracts	$	509		$	78		$	—	$	587		$	463		$	116		$	—		$	579
Derivatives income	—			782			—		782			—			815			—			815
Other (3)	(14		)	—			—		(14		)	14			—			(1		)	13
Eliminations	(8		)	(19		)	—		(27		)	(7		)	(13		)	—			(20		)
Total revenues	$	487		$	841		$	—	$	1,328		$	470		$	918		$	(1	)	$	1,387

	Six Months Ended June 30,
	2018											2017
	Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)		Total			Natural Gas Distribution (1)			Energy Services (2)			Other Operations (2)			Total
	(in millions)
Revenue from contracts	$	1,695		$	256		$	—	$	1,951		$	1,388		$	258		$	—		$	1,646
Derivatives income	—			1,889			—		1,889			—			1,869			—			1,869
Other (3)	(47		)	—			—		(47		)	5			—			—			5
Eliminations	(18		)	(47		)	—		(65		)	(16		)	(24		)	—			(40		)
Total revenues	$	1,630		$	2,098		$	—	$	3,728		$	1,377		$	2,103		$	—		$	3,480


(1)	Reflected in Utility revenues in the Condensed Statements of Consolidated Income.


(2)	Reflected in Non-utility revenues in the Condensed Statements of Consolidated Income.

(3)

Primarily consists of income from ARPs and leases. ARPs are contracts between the utility and its regulators, not between the utility and a customer. The Registrants recognize ARP revenue as other revenues when the regulator-specified conditions for recognition have been met. Upon recovery of ARP revenue through incorporation in rates charged for utility service to customers, ARP revenue is reversed and recorded as revenue from contracts with customers. The recognition of ARP revenues and the reversal of ARP revenues upon recovery through rates charged for utility service may not occur in the same period.

Revenues from Contracts with Customers

Electric Transmission & Distribution. Houston Electric distributes electricity to customers over time and customers consume the electricity when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by the PUCT, is recognized as electricity is delivered and represents amounts both billed and unbilled. Discretionary services requested by customers are provided at a point in time with control transferring upon the completion of the service. Revenue for discretionary services is recognized upon completion of service based on the tariff rates set by the PUCT. Payments for electricity distribution and discretionary services are aggregated and received on a monthly basis. Houston Electric performs transmission services over time as a stand-ready obligation to provide a reliable network of transmission systems. Revenue is recognized upon time elapsed, and the monthly tariff rate set by the PUCT. Payments are received on a monthly basis.

Natural Gas Distribution. CERC distributes and transports natural gas to customers over time, and customers consume the natural gas when delivered. Revenue, consisting of both volumetric and fixed tariff rates set by the state governing agency for that service area, is recognized as natural gas is delivered and represents amounts both billed and unbilled. Discretionary services requested by the customer are satisfied at a point in time and revenue is recognized upon completion of service and the tariff rates set by the applicable state regulator. Payments of natural gas distribution, transportation and discretionary services are aggregated and received on a monthly basis.

Energy Services. The majority of CES natural gas sales contracts are considered a derivative, as the contracts typically have a stated minimum or contractual volume of delivery.

For contracts in which CES delivers the full requirement of the natural gas needed by the customer and a volume is not stated, a contract as defined under ASC 606 is created upon the customer’s exercise of its option to take natural gas. CES supplies natural gas to retail customers over time as customers consume the natural gas when delivered. For wholesale customers, CES supplies natural gas at a point in time because the wholesale customer is presumed to have storage capabilities. Control is transferred to both types of customers upon delivery of natural gas. Revenue is recognized on a monthly basis based on the estimated volume of natural gas delivered and the price agreed upon with the customer. Payments are received on a monthly basis.

AMAs are natural gas sales contracts under which CES also assumes management of a customer’s physical storage and/or transportation capacity. AMAs have two distinct performance obligations, which consist of natural gas sales and natural gas delivery because delivery could occur separate from the sale of natural gas (e.g., from storage to customer premises). Most AMAs’ natural gas sales performance obligations are accounted for as embedded derivatives. The transaction price is allocated between the sale of natural gas and the delivery based on the stand-alone selling price as stated in the contract. CES performs natural gas delivery over time as customers take delivery of the natural gas and recognizes revenue on an aggregated monthly basis based on the volume of natural gas delivered and the fees stated within the contract. Payments are received on a monthly basis.

Practical Expedients and Exemption. Sales taxes and other similar taxes collected from customers are excluded from the transaction price.