|
Consolidated Balance Sheets (Parenthetical) (USD $)
|
Mar. 31, 2015
|
Sep. 30, 2014
|
|---|---|---|
| Air Products Shareholder's Equity [Abstract] | ||
| Common stock, par value | $ 1 | $ 1 |
| Common stock, issued shares | 249,455,584 | 249,455,584 |
| Treasury stock, shares | 34,690,830 | 35,917,440 |