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Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
Goodwill
The changes in Goodwill by reportable segment are as follows:
CorporateSmall BusinessPublic
Other(1)
Consolidated
Balances as of December 31, 2022(2)
$2,133.4 $230.2 $1,658.8 $320.3 $4,342.7 
Acquisition activity(3)
19.7 — 36.3 — 56.0 
Foreign currency translation— — — 14.7 14.7 
Balances as of December 31, 2023(2)
2,153.1 230.2 1,695.1 335.0 4,413.4 
Acquisition activity(4)
217.7 — 0.4 — 218.1 
Foreign currency translation— — — (11.1)(11.1)
Balances as of December 31, 2024(2)
$2,370.8 $230.2 $1,695.5 $323.9 $4,620.4 
(1)Other is comprised of CDW UK and CDW Canada operating segments.
(2)Goodwill is net of accumulated impairment losses of $1,571 million, $354 million and $28 million related to the Corporate, Public and Other segments, respectively, recorded in 2008 and 2009.
(3)Includes other immaterial acquisitions.
(4)The acquisition of Mission is fully allocated to the Corporate segment. For additional information regarding the acquisition of Mission, see Note 3 (Acquisitions). Remaining activity in the Public segments includes other immaterial acquisitions.
The Company performed a qualitative impairment assessment for all reporting units during the fourth quarter of 2024 and concluded that it was more likely than not that the fair values of all reporting units exceeded their respective carrying values and, therefore, no impairment existed. The Company performed a quantitative impairment assessment for all reporting units during the fourth quarter of 2023 and determined that the fair values of each reporting unit substantially exceeded their carrying values and, therefore, no impairment existed.
Other Intangible Assets
A summary of intangible assets is as follows:
December 31, 2024Useful Lives (Years)Gross Carrying AmountAccumulated
Amortization		Net Carrying Amount
Customer relationships
3 - 14
$3,478.1 $(2,361.6)$1,116.5 
Trade name
1 - 20
449.6 (387.6)62.0 
Internally developed software
3 - 5
391.6 (246.9)144.7 
Other
1 - 10
35.6 (2.2)33.4 
Total$4,354.9 $(2,998.3)$1,356.6 
December 31, 2023Useful Lives (Years)Gross Carrying AmountAccumulated
Amortization		Net Carrying Amount
Customer relationships
3 - 14
$3,379.7 $(2,236.6)$1,143.1 
Trade name
1 - 20
446.1 (366.6)79.5 
Internally developed software
3 - 5
474.9 (330.6)144.3 
Other
1 - 10
4.3 (1.5)2.8 
Total$4,305.0 $(2,935.3)$1,369.7 
During the years ended December 31, 2024, 2023 and 2022, the Company recorded disposals of $155 million, $33 million and $8 million, respectively, to derecognize intangible assets that were no longer in use.
During the years ended December 31, 2024, 2023 and 2022, the Company recorded amortization expense related to intangible assets of $222 million, $219 million and $233 million, respectively.
Estimated future amortization expense related to intangible assets is as follows:
Years ending December 31,Estimated Future Amortization Expense
2025$240.0 
2026217.8 
2027182.4 
2028138.0 
2029125.0 
Thereafter453.4 
Total future amortization expense $1,356.6