Related Party Transactions

12 Months Ended

Dec. 31, 2018

RELATED PARTY TRANSACTIONS:

Accounts receivable from related companies reflected on the consolidated balance sheets primarily related to services provided to ET, ETO and other affiliates. Accounts payable to related companies and advance from affiliates reflected on the consolidated balance sheets related to various services provided by ETO and other affiliates.

The following tables provide a summary of related party activity included in our consolidated statements of operations:



	Years Ended December 31,
	2018		2017		2016
Operating revenues	$	97	$	43	$	17
Operating and maintenance	3		7		14
General and administrative	24		23		27
Interest income — affiliates	—		10		26
Interest expense — affiliates	13		—		—

The Company settled related party payables with a subsidiary of ETO through non-cash contributions during the years ended December 31, 2018 and 2017 for $31 million and $8 million, respectively. During the year ended December 31, 2016, the Company settled related party receivables with a subsidiary of ETO through a non-cash distribution for $240 million.

As of December 31, 2018 and 2017, the Company had $356 million and $113 million, respectively, outstanding under a note payable with a subsidiary of ETO. The note payable accrues interest monthly with an annual interest rate of 5.318% as of December 31, 2018. The note matures on July 31, 2027.