Debt and Capital Leases (GenOn, GenOn Americas Generation, and GenOn Mid-Atlantic) (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Components of long-term debt and capital leases

Long-term debt and capital leases consisted of the following:

(In millions, except rates)	September 30, 2017			December 31, 2016		September 30, 2017 interest rate %
GenOn Americas Generation:
GenOn Americas Generation Senior Notes, due 2021	$	366		$	366	8.500
GenOn Americas Generation Senior Notes, due 2031	329			329		9.125
Premiums (a)	—			50
Less: Liabilities subject to compromise	(695		)	—
Subtotal GenOn Americas Generation	—			745
GenOn Energy:
GenOn Senior Notes, due 2017	691			691		7.875
GenOn Senior Notes, due 2018	649			649		9.500
GenOn Senior Notes, due 2020	490			490		9.875
Other liabilities (b)	91			96
GenOn capital lease	2			2
Premiums (a)	—			81
Less: Liabilities subject to compromise	(1,921		)	—
Subtotal GenOn Energy	2			2,009
Subtotal	2			2,754
Less: current maturities	1			704
Total long-term debt and capital leases	$	1		$	2,050

(a)    Premiums were written-off at Petition Date in accordance with ASC 852, Reorganizations.

(b)    Debt financing liabilities associated with the Long Term Service Agreements for the Choctaw and Hunterstown facilities.