Intangible assets and goodwill (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

Intangible assets are comprised of the following:

		December 31, 2012
(Millions of dollars)	Weighted Amortizable Life (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	15	$	2,756	$	(377	)	$	2,379
Intellectual property	12	1,767		(342		)	1,425
Other	10	299		(105		)	194
Total finite-lived intangible assets	13	4,822		(824		)	3,998
Indefinite-lived intangible assets - In-process research & development		18		—			18
Total intangible assets		$	4,840	$	(824	)	$	4,016
		December 31, 2011
	Weighted Amortizable Life (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	15	$	2,811	$	(213	)	$	2,598
Intellectual property	11	1,794		(244		)	1,550
Other	11	299		(97		)	202
Total finite-lived intangible assets	13	4,904		(554		)	4,350
Indefinite-lived intangible assets - In-process research & development		18		—			18
Total intangible assets		$	4,922	$	(554	)	$	4,368
		December 31, 2010
	Weighted Amortizable Life (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	17	$	630	$	(108	)	$	522
Intellectual property	9	306		(166		)	140
Other	13	197		(72		)	125
Total finite-lived intangible assets	14	1,133		(346		)	787
Indefinite-lived intangible assets - In-process research & development		18		—			18
Total intangible assets		$	1,151	$	(346	)	$	805

Expected amortization expense related to intangible assets

As of December 31, 2012, amortization expense related to intangible assets is expected to be:

(Millions of dollars)
2013		2014		2015		2016		2017		Thereafter
$	380	$	375	$	371	$	365	$	359	$	2,166

Goodwill

The changes in carrying amount of goodwill by reportable segment for the years ended December 31, 2012, 2011 and 2010 were as follows:

(Millions of dollars)	December 31, 2011			Acquisitions		Held for Sale and Business Divestitures 1			Impairment Loss			Other Adjustments 2			December 31, 2012
Construction Industries
Goodwill	$	378		$	22	$	—		$	—		$	(18	)	$	382
Resource Industries
Goodwill	4,121			597		(181		)	—			22			4,559
Impairments	(22		)	—		—			(580		)	—			(602		)
Net goodwill	4,099			597		(181		)	(580		)	22			3,957
Power Systems
Goodwill	2,486			9		—			—			(9		)	2,486
All Other 3
Goodwill	117			—		—			—			—			117
Consolidated total
Goodwill	7,102			628		(181		)	—			(5		)	7,544
Impairments	(22		)	—		—			(580		)	—			(602		)
Net goodwill	$	7,080		$	628	$	(181	)	$	(580	)	$	(5	)	$	6,942
	December 31, 2010			Acquisitions		Held for Sale and Business Divestitures 1			Impairment Loss			Other Adjustments 2			December 31, 2011
Construction Industries
Goodwill	$	357		$	—	$	—		$	—		$	21		$	378
Resource Industries
Goodwill	73			4,616		(397		)	—			(171		)	4,121
Impairments	(22		)	—		—			—			—			(22		)
Net goodwill	51			4,616		(397		)	—			(171		)	4,099
Power Systems
Goodwill	2,077			410		—			—			(1		)	2,486
All Other 3
Goodwill	129			—		(12		)	—			—			117
Consolidated total
Goodwill	2,636			5,026		(409		)	—			(151		)	7,102
Impairments	(22		)	—		—			—			—			(22		)
Net goodwill	$	2,614		$	5,026	$	(409	)	$	—		$	(151	)	$	7,080
	December 31, 2009			Acquisitions		Held for Sale and Business Divestitures 1			Impairment Loss			Other Adjustments 2			December 31, 2010
Construction Industries
Goodwill	$	342		$	5	$	—		$	—		$	10		$	357
Resource Industries
Goodwill	69			3		—			—			1			73
Impairments	(22		)	—		—			—			—			(22		)
Net goodwill	47			3		—			—			1			51
Power Systems
Goodwill	1,751			326		—			—			—			2,077
All Other 3
Goodwill	129			—		—			—			—			129
Consolidated total
Goodwill	2,291			334		—			—			11			2,636
Impairments	(22		)	—		—			—			—			(22		)
Net goodwill	$	2,269		$	334	$	—		$	—		$	11		$	2,614

¹  See Note 25 for additional information.

²  Other adjustments are comprised primarily of foreign currency translation.

³  Includes All Other operating segment (See Note 22).