v2.4.1.9

Schedule of Goodwill by Segment (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Goodwill [Roll Forward]

Goodwill, Gross

$ 4,174.1us-gaap_GoodwillGross

$ 4,163.1us-gaap_GoodwillGross

Period Increase (Decrease)

(2.7)us-gaap_GoodwillPeriodIncreaseDecrease

11.0us-gaap_GoodwillPeriodIncreaseDecrease

Translation adjustment

(2.7)us-gaap_GoodwillTranslationAdjustments

(2.1)us-gaap_GoodwillTranslationAdjustments

Contingent consideration related to pre-2009 business combination

13.1cdw_Contingentconsiderationrelatedtopre2009businesscombination

^[1]

Goodwill, Gross

4,171.4us-gaap_GoodwillGross

4,174.1us-gaap_GoodwillGross

Accumulated impairment charges

(1,953.8)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss

(1,953.8)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss

(1,953.8)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss

Goodwill

2,217.6us-gaap_Goodwill

2,220.3us-gaap_Goodwill

2,209.3us-gaap_Goodwill

Corporate [Member]

Goodwill [Roll Forward]

Goodwill, Gross

2,803.2us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

2,794.4us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Period Increase (Decrease)

0us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

8.8us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Translation adjustment

0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Contingent consideration related to pre-2009 business combination

8.8cdw_Contingentconsiderationrelatedtopre2009businesscombination
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

^[1]

Goodwill, Gross

2,803.2us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

2,803.2us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Accumulated impairment charges

(1,571.4)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

(1,571.4)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

(1,571.4)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Goodwill

1,231.8us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

1,231.8us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

1,223.0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_CorporateSegmentMember

Public [Member]

Goodwill [Roll Forward]

Goodwill, Gross

1,265.4us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

1,261.4us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Period Increase (Decrease)

0us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

4.0us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Translation adjustment

0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Contingent consideration related to pre-2009 business combination

4.0cdw_Contingentconsiderationrelatedtopre2009businesscombination
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

^[1]

Goodwill, Gross

1,265.4us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

1,265.4us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Accumulated impairment charges

(354.1)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

(354.1)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

(354.1)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Goodwill

911.3us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

911.3us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

907.3us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_PublicMember

Other Segments [Member]

Goodwill [Roll Forward]

Goodwill, Gross

105.5us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

107.3us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Period Increase (Decrease)

(2.7)us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

(1.8)us-gaap_GoodwillPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Translation adjustment

(2.7)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

(2.1)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Contingent consideration related to pre-2009 business combination

0.3cdw_Contingentconsiderationrelatedtopre2009businesscombination
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[1],[2]

Goodwill, Gross

102.8us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

105.5us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Accumulated impairment charges

(28.3)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

(28.3)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

(28.3)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Goodwill

74.5us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

77.2us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

79.0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

^[2]

Kelway Operating Segment [Member]

Goodwill [Roll Forward]

Goodwill

$ 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_KelwayOperatingSegmentMember

$ 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_KelwayOperatingSegmentMember

$ 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= cdw_KelwayOperatingSegmentMember

[1]

During 2013, the Company recorded a $13.1 million net-of-tax addition to goodwill in connection with the settlement of the MPK Coworker Incentive Plan II and related charitable contribution. The charitable contribution was accounted for as additional purchase price (goodwill) in accordance with pre-2009 business combinations accounting guidance. See Note 10 for additional discussion of this transaction.

[2]

Other is comprised of CDW Advanced Services, Canada, and Kelway reporting units. There is no goodwill attributable to the Kelway reporting unit.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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