|
Inventories (Schedule of Inventory) (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2015
|
Sep. 30, 2014
|
|---|---|---|
| Inventories [Abstract] | ||
| Finished goods | $ 509.2 | $ 493.9 |
| Work in process | 36.3 | 34.1 |
| Raw materials, supplies and other | 259.4 | 283.4 |
| Total FIFO value | 804.9 | 811.4 |
| Less: Excess of FIFO cost over LIFO cost | (111.6) | (105.4) |
| Inventories | $ 693.3 | $ 706.0 |