Other Intangible Assets

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

OTHER INTANGIBLE ASSETS

Other intangible assets consisted of the following:


December 31, 2015	Gross Cost		Accumulated Amortization			Net Cost
Technologies & licences		593		(511	)		82
Contractual customer relationships		4		(4	)		—
Purchased and internally developed software		387		(321	)		66
Construction in progress		18		—			18
Other intangible assets		65		(65	)		—

Total		1,067		(901	)		166


December 31, 2014	Gross Cost		Accumulated Amortization			Net Cost
Technologies & licences		619		(519	)		100
Contractual customer relationships		4		(4	)		—
Purchased and internally developed software		373		(302	)		71
Construction in progress		22		—			22
Other intangible assets		66		(66	)		—

Total		1,084		(891	)		193

The line “Construction in progress” in the table above includes internally developed software under construction and software not ready for use.

The amortization expense in 2015, 2014 and 2013 was $60 million, $61 million and $72 million, respectively.

The estimated amortization expense of the existing intangible assets for the following years is:


Year
2016			61
2017			44
2018			28
2019			17
2020			8
Thereafter			8

Total			166

During the third quarter of 2015, the Company tested for impairment dedicated long-lived assets of DPG reporting unit related to products for which current and future economic performance is weaker than expected. The result was that these intangible assets, composed of acquired technologies, and amounting to $6 million, were fully impaired due to the fact that their projected cash flows, over their remaining useful life, were less than their carrying value. Additionally, the Company impaired $7 million and $3 million of acquired technologies in the third quarter and the fourth quarter of 2015 respectively, for which it was determined that they had no alternative future use.