| Component: (Network and Table) | |
|---|---|
| Network | 2416402 - Disclosure - Goodwill And Intangible Assets, Net (Narrative) (Details) (http://www.adp.com/role/GoodwillAndIntangibleAssetsNetNarrativeDetails) |
| Table | Schedule of Finite-Lived Intangible Assets by Major Class [Table] |
| Reporting Entity [Axis] | 0000008670 (http://www.sec.gov/CIK) |
| Finite-Lived Intangible Assets [Line Items] | Period [Axis] | |||||
|---|---|---|---|---|---|---|
2012-07-01 - 2013-06-30 | 2011-07-01 - 2012-06-30 | 2010-07-01 - 2011-06-30 | ||||
| Finite-Lived Intangible Assets by Major Class [Axis] | Finite-Lived Intangible Assets by Major Class [Axis] | Finite-Lived Intangible Assets by Major Class [Axis] | ||||
| Computer Software, Intangible Asset [Member] | Customer Lists [Member] | Other Intangibles [Member] | Finite-Lived Intangible Assets, Major Class Name [Domain] | Finite-Lived Intangible Assets, Major Class Name [Domain] | Finite-Lived Intangible Assets, Major Class Name [Domain] | |
Goodwill, Impairment Loss | 42,700,000 | 0 | 0 | |||
Amortization expense on intangible assets | 167,100,000 | 172,800,000 | 168,300,000 | |||
Weighted average remaining useful life | P4Y | P10Y | P7Y | P7Y | ||