XML 44 R32.htm IDEA: XBRL DOCUMENT
v3.25.3

Inventory Financing Agreements (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts Payable, Inventory Financing |  |
Inventory Financing Agreements [Line Items] |  |
Other inventory financing agreements | $ 331 | $ 355

X
- Definition Inventory Financing Agreements [Line Items] + References No definition available. + Details
Name: | cdw_InventoryFinancingAgreementsLineItems
Namespace Prefix: | cdw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Inventory Financing Agreements + References No definition available. + Details
Name: | cdw_OtherInventoryFinancingAgreements
Namespace Prefix: | cdw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | cdw_InventoryFinancingAgreementsAxis=cdw_AccountsPayableInventoryFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |