Acquisitions, Goodwill and Intangible Assets (Summary of intangible assets) (Details) - USD ($)
$ in Millions |
Mar. 31, 2016 |
Sep. 30, 2015 |
| Intangible Assets |
|
|
| Accumulated Amortization |
$ (400)
|
$ (369)
|
| Finite-lived and Indefinite-lived Intangible Assets, Gross |
1,093
|
1,072
|
| Net |
693
|
703
|
| Developed technology and patents [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
355
|
346
|
| Accumulated Amortization |
(206)
|
(195)
|
| Finite-Lived Intangible Assets, Net |
149
|
151
|
| Backlog [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
6
|
5
|
| Accumulated Amortization |
(2)
|
(2)
|
| Finite-Lived Intangible Assets, Net |
4
|
3
|
| Customer relationships: Acquired [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
340
|
338
|
| Accumulated Amortization |
(97)
|
(87)
|
| Finite-Lived Intangible Assets, Net |
243
|
251
|
| Customer relationships: Up-front sales incentives [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
309
|
301
|
| Accumulated Amortization |
(71)
|
(62)
|
| Finite-Lived Intangible Assets, Net |
238
|
239
|
| License Agreements [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
13
|
13
|
| Accumulated Amortization |
(10)
|
(9)
|
| Finite-Lived Intangible Assets, Net |
3
|
4
|
| Trademarks and tradenames [Member] |
|
|
| Intangible Assets |
|
|
| Gross |
15
|
15
|
| Accumulated Amortization |
(14)
|
(14)
|
| Finite-Lived Intangible Assets, Net |
1
|
1
|
| Trademarks and tradenames [Member] |
|
|
| Intangible Assets |
|
|
| Indefinite-Lived Intangible Assets (Excluding Goodwill) |
48
|
47
|
| In process research and development [Member] |
|
|
| Intangible Assets |
|
|
| Indefinite-Lived Intangible Assets (Excluding Goodwill) |
$ 7
|
$ 7
|