XML 79 R47.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Redeemable Noncontrolling Interests (Narrative) (Details) | Dec. 31, 2016
--- | ---
naviHealth |
Redeemable Noncontrolling Interest [Line Items] |
Ownership interest (as a percent) | 82.00%

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RedeemableNoncontrollingInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=cah_NaviHealthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |