XML 55 R42.htm IDEA: XBRL DOCUMENT
v3.25.1

Revenue - Narrative (Details) | Mar. 31, 2025 pillar
--- | ---
Revenue from Contract with Customer [Abstract] |
Number of strategic pillars | 3

X
- Definition Number Of Strategic Pillars + References No definition available. + Details
Name: | adp_NumberOfStrategicPillars
Namespace Prefix: | adp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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