Other Non-Operating Expense Other Non-Operating Expense

12 Months Ended

Dec. 31, 2015

Other Income and Expenses [Abstract]

OTHER NON-OPERATING EXPENSE

OTHER NON-OPERATING EXPENSE

Years Ended December 31,	2014		2013
	(in millions)
Entek	$	86	$	—
Silver Ridge	42		—
Elsta	—		129
Total other non-operating expense	$	128	$	129

There was no other non-operating expense for the year ended December 31, 2015.

Entek — During 2014, the Company executed an agreement to sell its 49.62% interest in Entek, an investment accounted for under the equity method, for $125 million. Entek consists of natural gas and hydroelectric generation facilities, plus a coal-fired development project. The Company determined that there was an other-than-temporary decline in the fair value of its equity method investment in Entek and recognized pretax impairment expense of $86 million. The sale of the Company's interest in Entek closed on December 18, 2014. See Note 8—Investments in and Advances to Affiliates of this Form 10-K for further information.

Silver Ridge — During 2014, the Company determined that there was a decline in the fair value of its equity method investment in SRP that was other-than-temporary based on indications about the fair value of the projects in Italy and Spain that resulted from actual and proposed changes to their tariffs. Accordingly, the Company recognized pretax impairment expense of $42 million. The transaction related to our 50% ownership interest in SRP closed on July 2, 2014 for $179 million. See Note 8—Investments in and Advances to Affiliates of this Form 10-K for further information.

Elsta — During 2013, the Company identified an impairment indicator at Elsta, a combined cycle gas-fired plant in the Netherlands that is accounted for under the equity method, resulting from negative pricing indications noted during negotiations with its offtakers for an extension of the existing PPA. The Company recognized pretax impairment expense of $129 million by reducing the carrying value of $240 million to the estimated fair value of $111 million. The Company estimated fair value using probability-weighted outcomes which contemplated various scenarios involving the amendments to the existing PPA.