XML 76 R66.htm IDEA: XBRL DOCUMENT
v3.24.3

Redeemable Noncontrolling Interest - Narrative (Details) | Sep. 30, 2024 noncontrolling_interest
--- | ---
First Data Joint Venture |
Noncontrolling Interest [Line Items] |
Ownership percentage by noncontrolling owner | 1.00%
First Data |
Noncontrolling Interest [Line Items] |
Number of redeemable noncontrolling interests | 1

X
- Definition Number Of Redeemable Noncontrolling Interests + References No definition available. + Details
Name: | fisv_NumberOfRedeemableNoncontrollingInterests
Namespace Prefix: | fisv_
Data Type: | xbrli:integerItemType
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_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=fisv_FirstDataJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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