XML 66 R46.htm IDEA: XBRL DOCUMENT
v3.22.2

Basis of Presentation and Summary of Significant Accounting Policies (Narrative, Sales Returns and Allowances) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
Accounting Policies [Abstract] |  |  |
Accrual for estimated sales returns and allowances | $ 617 | $ 689 |
Revenue Recognition, Sales Returns, Reserve for Sales Returns | $ 2,400 | $ 2,600 | $ 2,300

X
- Definition Revenue Recognition, Reserve for Sales Returns and Allowances + References No definition available. + Details
Name: | cah_RevenueRecognitionReserveforSalesReturnsandAllowances
Namespace Prefix: | cah_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of estimated sales returns. + References No definition available. + Details
Name: | us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration