Goodwill and Other Intangibles, net (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Amortized Intangible Assets

Estimated amortization expense:	Amount
For the year ended December 31, 2017	$	181
For the year ended December 31, 2018	96
For the year ended December 31, 2019	83
For the year ended December 31, 2020	39
For the year ended December 31, 2021	37
Thereafter	44
Total	$	480

Other Intangibles, net are as follows (in millions):

	December 31, 2016
	Gross Amount		Accumulated Amortization			Net Amount
Amortized intangible assets
Current technology	$	24	$	(21	)	$	3
Trade names	40		(40		)	—
Unpatented technology	241		(146		)	95
Patents and patent rights	238		(161		)	77
Customer relationships	478		(173		)	305
Total	$	1,021	$	(541	)	$	480
Amortization expense for the year ended December 31, 2016			$	229

	December 31, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Amortized intangible assets
Current technology	$	25	$	(19	)	$	6
Trade names	40		(24		)	16
Unpatented technology	270		(87		)	183
Patent and patent rights	247		(99		)	148
Customer relationships	517		(113		)	404
Total	$	1,099	$	(342	)	$	757
Amortization expense for the year ended December 31, 2015			$	251

Changes in Net Carrying Value of Goodwill

Changes in the net carrying value amount of goodwill were as follows (in millions):

	Total
Goodwill as of December 31, 2014	$	2,490
Opening balance sheet adjustments – Enterprise 2015	8
Foreign exchange impact	(8		)
Goodwill as of December 31, 2015	2,490
Impairment charge – wireless LAN divestiture	(32		)
Goodwill as of December 31, 2016	$	2,458