Summary of Significant Accounting Policies

Revenues

Adoption of New Standard

On January 1, 2018, the Companies adopted Accounting Standards Codification (ASC) Topic 606, “Revenue from Contracts with Customers,” using the modified retrospective method applied to those contracts that were not completed. No charge to retained earnings for cumulative impact was required as a result of the Companies’ adoption of Topic 606.

Revenue Recognition

The following table presents, for the three and nine months ended September 30, 2018, revenue from contracts with customers as defined in Topic 606, as well as additional revenue from sources other than contracts with customers, disaggregated by major source.



	For the Three Months Ended September 30, 2018					For the Nine Months Ended September 30, 2018
(Millions of Dollars)	Revenues from contracts with customers		Other revenues (a)		Total operating revenues	Revenues from contracts with customers		Other revenues (a)	Total operating revenues
CECONY
Electric	$2,631		$(60)		$2,571	$6,106		$1	$6,107
Gas	264		—		264	1,516		24	1,540
Steam	64		—		64	467		7	474
Total CECONY	$2,959		$(60)		$2,899	$8,089		$32	$8,121
O&R
Electric	215		(3)		212	508		(3)	505
Gas	31		3		34	179		7	186
Total O&R	$246			$—	$246	$687		$4	$691
Clean Energy Businesses
Renewables	68	(b)	—		68	273	(b)	—	273
Energy services	24		—		24	65		—	65
Other	—		89		89	—		235	235
Total Clean Energy Businesses	$92		$89		$181	$338		$235	$573
Con Edison Transmission	1		—		1	3		—	3
Other (c)	—		1		1	—		—	—
Total Con Edison	$3,298		$30		$3,328	$9,117		$271	$9,388

(a) For the Utilities, this includes revenue from alternative revenue programs, such as the revenue decoupling mechanisms under their New York electric and gas rate plans.For the Clean Energy Businesses, this includes revenue from wholesale services.

(b) Included within the total for Renewables revenue at the Clean Energy Businesses is $3 million and $100 million for the three and nine months ended September 30, 2018, respectively, of revenue related to engineering, procurement and construction services.


(c)	Parent company and consolidation adjustments.

The Utilities have the obligation to deliver electricity, gas and steam energy to their customers. The Utilities recognize revenues as this performance obligation is satisfied over time as the Utilities deliver, and the customers simultaneously receive and consume, the energy. The amount of revenues recognized reflects the consideration the Utilities expect to receive in exchange for delivering the energy. Under their tariffs, the transaction price for full-service customers includes the Utilities’ energy cost and for all customers includes delivery charges determined based on customer class and in accordance with established tariffs and guidelines of the New York State Public Service Commission (NYSPSC) or the New Jersey Board of Public Utilities (NJBPU), as applicable. Accordingly, there is no unsatisfied performance obligation associated with these customers. The transaction price is applied to the Utilities’ revenue generating activities through the customer billing process. Because energy is delivered over time, the Utilities use output methods that recognize revenue based on direct measurement of the value transferred, such as units delivered, which provides an accurate measure of value for the energy delivered. The Utilities accrue revenues at the end of each month for estimated energy delivered but not yet billed to customers. The Utilities defer over a 12-month period net interruptible gas revenues, other than those authorized by the NYSPSC to be retained by the Utilities, for refund to firm gas sales and transportation customers.

Con Edison Development recognizes revenue for the sale of energy from renewable electric production projects as energy is generated and billed to counterparties. Con Edison Development accrues revenues at the end of each month for energy generated but not yet billed to counterparties. Con Edison Energy recognizes revenue as energy is delivered and services are provided for managing energy supply assets leased from others and managing the dispatch, fuel requirements and risk management activities for generating plants and merchant transmission in the northeastern United States. Con Edison Solutions recognizes revenue for providing energy-efficiency services to government and commercial customers, and Con Edison Development recognizes revenue for engineering, procurement and construction services, under the percentage-of-completion method of revenue recognition.

Sales and profits on each percentage-of-completion contract are recorded each month based on the ratio of actual cumulative costs incurred to the total estimated costs at completion of the contract, multiplied by the total estimated contract revenue, less cumulative revenues recognized in prior periods (the ‘‘cost-to-cost’’ method). The impact of revisions of contract estimates, which may result from contract modifications, performance or other reasons, are recognized on a cumulative catch-up basis in the period in which the revisions are made.



(Millions of Dollars)	Unbilled contract revenue (a)	Unearned revenue (b)
Beginning balance as of January 1, 2018	$58	$87
Additions (c)	111	34
Subtractions (c)	138	105	(d)
Ending balance as of September 30, 2018	$31	$16

(a)

Unbilled contract revenue represents accumulated incurred costs and earned profits on contracts (revenue arrangements), which have been recorded as revenue, but have not yet been billed to customers, and which represent contract assets as defined in Topic 606. Substantially all accrued unbilled contract revenue is expected to be collected within one year. Unbilled contract revenue arises from the cost-to-cost method of revenue recognition. Unbilled contract revenue from fixed-price type contracts is converted to billed receivables when amounts are invoiced to customers according to contractual billing terms, which generally occur when deliveries or other performance milestones are completed.


(b)	Unearned revenue represents a liability for billings to customers in excess of earned revenue, which are contract liabilities as defined in Topic 606.


(c)	Additions for unbilled contract revenue and subtractions for unearned revenue represent additional revenue earned. Additions for unearned revenue and subtractions for unbilled contract revenue represent billings. Activity also includes appropriate balance sheet classification for the period.


(d)	Of the $105 million in subtractions from unearned revenue, $50 million was included in the balance as of December 31, 2017.

As of September 30, 2018, the aggregate amount of the remaining fixed performance obligations is $124 million, of which $87 million will be recognized within the next two years, and the remaining $37 million will be recognized pursuant to long-term service and maintenance agreements.

Revenues are recorded as energy is delivered, generated or services are provided and billed to customers, except for services under percentage-of-completion contracts. Amounts billed are recorded in accounts receivable - customers, with payment generally due the following month. Con Edison’s and the Utilities’ accounts receivable - customers balance also reflects the Utilities’ purchase of receivables from energy service companies to support retail choice programs. Accrued revenues not yet billed to customers are recorded as accrued unbilled revenues.

Utility Plant

At September 30, 2018, utility plant of Con Edison and CECONY included $102 million and $97 million, respectively, related to a May 2018 acquisition of software licenses. The software licenses asset is being amortized over a period of 15 years, and the estimated aggregate annual amortization expense for Con Edison and CECONY is $7 million. At September 30, 2018, the accumulated amortization for Con Edison and CECONY was $2 million and $1 million, respectively.

Earnings Per Common Share

Con Edison presents basic and diluted earnings per share (EPS) on the face of its consolidated income statement. Basic EPS is calculated by dividing earnings available to common shareholders (“Net income” on Con Edison’s consolidated income statement) by the weighted average number of Con Edison common shares outstanding during the period. In the calculation of diluted EPS, weighted average shares outstanding are increased for additional shares that would be outstanding if potentially dilutive securities were converted to common stock.

Potentially dilutive securities for Con Edison consist of restricted stock units and deferred stock units for which the average market price of the common shares for the period was greater than the exercise price.

For the three and nine months ended September 30, 2018 and 2017, basic and diluted EPS for Con Edison are calculated as follows:



	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
(Millions of Dollars, except per share amounts/Shares in Millions)	2018	2017	2018	2017
Net income	$435	$457	$1,051	$1,020
Weighted average common shares outstanding – basic	311.1	307.8	310.8	306.2
Add: Incremental shares attributable to effect of potentially dilutive securities	1.2	1.5	1.1	1.5
Adjusted weighted average common shares outstanding – diluted	312.3	309.3	311.9	307.7
Net Income per common share – basic	$1.40	$1.48	$3.38	$3.33
Net Income per common share – diluted	$1.39	$1.48	$3.37	$3.31

The computation of diluted EPS for the three and nine months ended September 30, 2018 excludes immaterial amounts of performance share awards that were not included because of their anti-dilutive effect.

Changes in Accumulated Other Comprehensive Income/(Loss) by Component

For the three and nine months ended September 30, 2018 and 2017, changes to accumulated other comprehensive income/(loss) (OCI) for Con Edison and CECONY are as follows:



	For the Three Months Ended September 30,
	Con Edison		CECONY
(Millions of Dollars)	2018	2017	2018	2017
Beginning balance, accumulated OCI, net of taxes (a)	$(20)	$(27)	$(5)	$(7)
Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $(1) for Con Edison in 2018 and 2017 (a)(b)	2	1	—	1
Current period OCI, net of taxes	2	1	—	1
Ending balance, accumulated OCI, net of taxes	$(18)	$(26)	$(5)	$(6)



	For the Nine Months Ended September 30,
	Con Edison		CECONY
(Millions of Dollars)	2018	2017	2018	2017
Beginning balance, accumulated OCI, net of taxes (a)	$(26)	$(27)	$(6)	$(7)
OCI before reclassifications, net of tax of $(1) and $1 for Con Edison in 2018 and 2017, respectively	3	(2)	—	—
Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $(2) for Con Edison in 2018 and 2017 (a)(b)	5	3	1	1
Current period OCI, net of taxes	8	1	1	1
Ending balance, accumulated OCI, net of taxes	$(18)	$(26)	$(5)	$(6)


(a)	Tax reclassified from accumulated OCI is reported in the income tax expense line item of the consolidated income statement.


(b)	For the portion of unrecognized pension and other postretirement benefit costs relating to the Utilities, costs are recorded into, and amortized out of, regulatory assets instead of OCI. The net actuarial losses and prior service costs recognized during the period are included in the computation of total periodic pension and other postretirement benefit cost. See Notes E and F.

Reconciliation of Cash, Temporary Cash Investments and Restricted Cash

On January 1, 2018, the Companies adopted Accounting Standard Update (ASU) 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash," which they applied retrospectively for each prior period presented. Pursuant to ASU 2016-18, cash, temporary cash investments and restricted cash are presented on a combined basis in the Companies’ consolidated statements of cash flows. At September 30, 2018 and 2017, cash, temporary cash investments and restricted cash for Con Edison and CECONY are as follows:



	At September 30,
	Con Edison		CECONY
(Millions of Dollars)	2018	2017	2018	2017
Cash and temporary cash investments	$199	$69	$17	$17
Restricted cash (a)	46	41	—	—
Total cash, temporary cash investments and restricted cash	$245	$110	$17	$17

(a)

Restricted cash is comprised of O&R's New Jersey utility subsidiary, Rockland Electric Company transition bond charge collections, net of principal, interest, trustee and service fees ($2 million at September 30, 2018 and 2017) that are restricted until the bonds mature in 2019, and the Clean Energy Businesses' cash collateral held for project finance agreements ($44 million and $39 million at September 30, 2018 and 2017, respectively) that are restricted until varying maturity dates. For these projects, such funds are restricted to being used for normal operating expenses and capital expenditures, debt service, and required reserves.