Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amount of goodwill

The following table presents the changes in the carrying amount of goodwill for each of the three years in the period ended December 31, 2012:

	General rentals		Trench safety, power and HVAC		Total
Balance at January 1, 2010 (1)	$	103	$	93	$	196
Foreign currency translation and other adjustments	2		—		2
Balance at December 31, 2010 (1)	105		93		198
Goodwill related to acquisitions	65		31		96
Foreign currency translation and other adjustments	(3)		(2)		(5)
Balance at December 31, 2011 (1)	167		122		289
Goodwill related to acquisitions (2)	2,661		20		2,681
Foreign currency translation and other adjustments	—		—		—
Balance at December 31, 2012 (1)	$	2,828	$	142	$	2,970

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(1) The total carrying amount of goodwill for all periods in the table above is reflected net of $1,557 of accumulated impairment charges, which were primarily recorded in our general rentals segment.

(2) Includes goodwill adjustments for the effect on goodwill of changes to net assets acquired during the measurement period, which were not significant to our previously reported operating results or financial condition.

Components of intangible assets

Other intangible assets were comprised of the following at December 31, 2012 and 2011:

	December 31, 2012
	Weighted-Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Amount
Non-compete agreements	51 months	$	79	$	32	$	47
Customer relationships	14 years	$	1,233	$	144	$	1,089
Trade names and associated trademarks	52 months	$	83	$	19	$	64

	December 31, 2011
	Weighted-Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Amount
Non-compete agreements	46 months	$	30	$	25	$	5
Customer relationships	9 years	$	121	$	43	$	78

Estimated future amortization expense of intangible assets

As of December 31, 2012, estimated amortization expense for other intangible assets for each of the next five years and thereafter is as follows:

2013	$	178
2014	162
2015	147
2016	131
2017	107
Thereafter	475
Total	$	1,200