Other Intangible Assets

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

Other Intangible Assets

The gross carrying amounts and accumulated amortization of other intangible assets by major class are as follows: 

	September 30, 2015							December 31, 2014
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Intangible assets subject to amortization (Definite-lived):
Customer lists	$	1,639	$	(514	)	$	1,125	$	1,699	$	(465	)	$	1,234
Patents	457		(211		)	246		474		(184		)	290
Purchased and licensed technology	1,131		(604		)	527		1,783		(1,069		)	714
Trademarks	26		(13		)	13		26		(12		)	14
Other 1	186		(72		)	114		202		(84		)	118
	3,439		(1,414		)	2,025		4,184		(1,814		)	2,370
Intangible assets not subject to amortization (Indefinite-lived):
In-process research and development	77		—			77		29		—			29
Microbial cell factories	306		—			306		306		—			306
Pioneer germplasm	1,050		—			1,050		1,064		—			1,064
Trademarks/tradenames	756		—			756		800		—			800
	2,189		—			2,189		2,199		—			2,199
Total	$	5,628	$	(1,414	)	$	4,214	$	6,383	$	(1,814	)	$	4,569

¹   Primarily consists of sales and grower networks, marketing and manufacturing alliances and noncompetition agreements.       

The aggregate pre-tax amortization expense from continuing operations for definite-lived intangible assets was $50 and $305 for the three and nine months ended September 30, 2015, respectively, and $48 and $292 for the three and nine months ended September 30, 2014, respectively. The estimated aggregate pre-tax amortization expense from continuing operations for the remainder of 2015 and each of the next five years is approximately $51, $352, $217, $218, $205 and $188, respectively.