Discontinued Operations (Details) - Enterprise Services - Discontinued Operations, Disposed of by Means Other than Sale, Spinoff - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Apr. 01, 2017 |
Apr. 30, 2017 |
Apr. 30, 2017 |
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
| Shares distributed to shareholder (in shares) | 0.085904 | ||
| Term | 5 years | ||
| Net cash transfer | $ 500 | $ 559 |