Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Other Intangible Assets

Components of other intangible assets — 

		March 31, 2015							December 31, 2014
	Weighted Average Useful Life (years)	Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount
Amortizable intangible assets
Core technology	7	$	86	$	(82	)	$	4	$	90	$	(85	)	$	5
Trademarks and trade names	16	3		(2		)	1		3		(1		)	2
Customer relationships	8	459		(397		)	62		493		(416		)	77
Non-amortizable intangible assets
Trademarks and trade names		65					65		65					65
Used in research and development activities		20					20		20					20
		$	633	$	(481	)	$	152	$	671	$	(502	)	$	169

Amortization Expense Related to Amortizable Intangible Assets

Amortization expense related to amortizable intangible assets — 

	Three Months Ended   March 31,
	2015		2014
Charged to cost of sales	$	1	$	2
Charged to amortization of intangibles	5		13
Total amortization	$	6	$	15

Estimated Aggregate Pre-tax Amortization Expense Related to Intangible Assets

The following table provides the estimated aggregate pre-tax amortization expense related to intangible assets for each of the next five years based on March 31, 2015 exchange rates. Actual amounts may differ from these estimates due to such factors as currency translation, customer turnover, impairments, additional intangible asset acquisitions and other events.

	Remainder of 2015		2016		2017		2018		2019
Amortization expense	$	12	$	15	$	13	$	10	$	8