Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2019

Related Party Transactions [Abstract]

Summary of NRG's Material Related Party Transactions

The following table summarizes NRG's material related party transactions with third party affiliates:

	Three months ended September 30,				Nine months ended September 30,
	2019		2018		2019		2018
	(In millions)
Revenues from Related Parties Included in Operating Revenues
Gladstone	$	2	$	1	$	3	$	2
GenConn	—		1		—		4
Ivanpah	7		8		25		13
Midway-Sunset	2		—		4		—
Revenues from Related Parties recorded against selling, general and administrative expenses
GenOn	—		11		—		53
Total	$	11	$	21	$	32	$	72