Revenue (Notes)

3 Months Ended

Mar. 31, 2019

Revenue from Contracts with Customers [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE

The following table presents our revenue from contracts with customers and other revenue for the periods indicated (in millions):



	Three Months Ended March 31, 2019
	US and Utilities SBU		South America SBU		MCAC SBU		Eurasia SBU		Corporate, Other and Eliminations			Total
Regulated Revenue
Revenue from contracts with customers	$	778	$	—	$	—	$	—	$	—		$	778
Other regulated revenue	7		—		—		—		—			7
Total regulated revenue	785		—		—		—		—			785
Non-Regulated Revenue
Revenue from contracts with customers	173		843		429		267		—			1,712
Other non-regulated revenue ⁽¹⁾	61		2		21		72		(3		)	153
Total non-regulated revenue	234		845		450		339		(3		)	1,865
Total revenue	$	1,019	$	845	$	450	$	339	$	(3	)	$	2,650



	Three Months Ended March 31, 2018
	US and Utilities SBU		South America SBU		MCAC SBU		Eurasia SBU		Corporate, Other and Eliminations			Total
Regulated Revenue
Revenue from contracts with customers	$	711	$	—	$	—	$	—	$	—		$	711
Other regulated revenue	11		—		—		—		—			11
Total regulated revenue	722		—		—		—		—			722
Non-Regulated Revenue
Revenue from contracts with customers	208		894		387		331		(9		)	1,811
Other non-regulated revenue ⁽¹⁾	97		1		21		88		—			207
Total non-regulated revenue	305		895		408		419		(9		)	2,018
Total revenue	$	1,027	$	895	$	408	$	419	$	(9	)	$	2,740

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⁽¹⁾	Other non-regulated revenue primarily includes lease and derivative revenue not accounted for under ASC 606.

Contract Balances — The timing of revenue recognition, billings, and cash collections results in accounts receivable and contract liabilities. The contract liabilities from contracts with customers were $128 million and $109 million as of March 31, 2019 and December 31, 2018, respectively.

During the three months ended March 31, 2019 and 2018, we recognized revenue of $3 million and $22 million, respectively, that was included in the corresponding contract liability balance at the beginning of the periods.

A significant financing arrangement exists for our Mong Duong plant in Vietnam. The plant was constructed under a build, operate, and transfer contract and will be transferred to the Vietnamese government after the completion of a 25 year PPA. The performance obligation to construct the facility was substantially completed in 2015. Approximately $1.4 billion of contract consideration related to the construction, but not yet collected through the 25 year PPA, was reflected as a loan receivable as of March 31, 2019.

Remaining Performance Obligations — The transaction price allocated to remaining performance obligations represents future consideration for unsatisfied (or partially unsatisfied) performance obligations at the end of the reporting period. As of March 31, 2019, the aggregate amount of transaction price allocated to remaining performance obligations was $15 million, primarily consisting of fixed consideration for the sale of renewable energy credits (RECs) in long-term contracts in the U.S. We expect to recognize revenue on approximately one-fifth of the remaining performance obligations in 2019, with the remainder recognized thereafter.

For further information on our accounting policies concerning contract balances and remaining performance obligations, see Note 18—Revenue in Item 8.—Financial Statements and Supplementary Data of our 2018 Form 10-K.