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Document Entity Information
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6 Months Ended |
|---|---|
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Mar. 31, 2015
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| Document And Entity Information [Abstract] | |
| Document Type | 10-Q |
| Amendment Flag | false |
| Document Period End Date | Mar. 31, 2015 |
| Document Fiscal Year Focus | 2015 |
| Document Fiscal Period Focus | Q2 |
| Current Fiscal Year End Date | --09-30 |
| Entity Registrant Name | AIR PRODUCTS & CHEMICALS INC /DE/ |
| Entity Central Index Key | 0000002969 |
| Entity Filer Category | Large Accelerated Filer |
| Entity Common Stock, Shares Outstanding | 214,764,754 |