| Component: (Network and Table) | |
|---|---|
| Network | 401804 - Disclosure - Share-Based Compensation (Market-Based Deferred Stock Unit Valuation Assumptions)(Details) (http://www.airproducts.com/role/ShareBasedCompensationMarketBasedDeferredStockUnitValuationAssumptionsDetails) |
| Table | Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] |
| Reporting Entity [Axis] | 0000002969 (http://www.sec.gov/CIK) |
| Award Type [Axis] | Market-Based Deferred Stock Unit [Member] |
| Share-based Compensation Arrangement by Share-based Award [Line Items] | Period [Axis] | |
|---|---|---|
2015-10-01 - 2016-09-30 | 2014-10-01 - 2015-09-30 | |
Expected volatility | ||
Risk-free interest rate | ||
Expected dividend yield | ||