Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible AssetsThe following table presents the changes in the carrying amount of goodwill for each of the three years in the period ended December 31, 2020:  

	General rentals		Trench, power and fluid solutions		Total
Balance at January 1, 2018 (1)	$	3,607	$	475	$	4,082
Goodwill related to acquisitions (2) (3)	752		247		999
Foreign currency translation and other adjustments	(17)		(6)		(23)
Balance at December 31, 2018 (1)	4,342		716		5,058
Goodwill related to acquisitions (2)	10		73		83
Foreign currency translation and other adjustments	10		3		13
Balance at December 31, 2019 (1)	4,362		792		5,154
Goodwill related to acquisitions (2)	1		(3)		(2)
Foreign currency translation and other adjustments	5		11		16
Balance at December 31, 2020 (1)	$	4,368	$	800	$	5,168

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(1)    The total carrying amount of goodwill for all periods in the table above is reflected net of $1.557 billion 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.

(3)    The acquisitions of BakerCorp and BlueLine in July 2018 and October 2018, respectively, accounted for most of the 2018 goodwill related to acquisitions.

Other intangible assets were comprised of the following at December 31, 2020 and 2019:  

	December 31, 2020
	Weighted-Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Amount
Non-compete agreements	35 months	$	12	$	6	$	6
Customer relationships	6 years	$	2,252	$	1,614	$	638
Trade names and associated trademarks	4 years	$	8	$	4	$	4

	December 31, 2019
	Weighted-Average Remaining Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Amount
Non-compete agreements	43 months	$	24	$	14	$	10
Customer relationships	7 years	$	2,246	$	1,364	$	882
Trade names and associated trademarks	4 years	$	5	$	2	$	3

Amortization expense for other intangible assets was $250, $290 and $213 for the years ended December 31, 2020, 2019 and 2018, respectively.

As of December 31, 2020, estimated amortization expense for other intangible assets for each of the next five years and thereafter was as follows:  

2021	$	206
2022	161
2023	117
2024	75
2025	50
Thereafter	39
Total	$	648