Pension Plans (Notes)	3 Months Ended
Pension Plans (Notes)	Jan. 03, 2015
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block]	14. Pension Plans Our pension plans are described in more detail in Note M to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2014. In the first quarter of 2015, we contributed $10 million to a non-U.S. pension plan. Termination of U.S. Pension Plan We maintain a U.S. defined benefit pension plan (the Plan) that covers certain persons who were employees of Computervision Corporation (acquired by us in 1998). Benefits under the Plan were frozen in 1990. In the second quarter of 2014, we began the process of terminating the Plan, which will include settling Plan liabilities by offering lump sum distributions to plan participants and purchasing annuity contracts to cover vested benefits. While we expect to complete the termination process by September 30, 2015, the timing is subject to regulatory approvals. As part of the planned termination, in 2014 we re-balanced assets to a target asset allocation of 100% fixed income investments (up from 40%), which will provide a better matching of Plan assets to the characteristics of the liabilities. In the third quarter of 2014, we provided notice to plan participants of our intent to terminate the plan effective August 1, 2014 and we applied for a determination with the Internal Revenue Service with regards to the termination. We will take further actions to minimize the volatility of the value of our pension assets relative to pension liabilities and to settle remaining Plan liabilities, including making such contributions to the Plan as may be necessary to make the Plan sufficient to settle all Plan liabilities. As of September 30, 2014, we valued the projected benefit obligations of the Plan based on the present value of estimated costs to settle the liabilities through a combination of lump sum payments to participants and purchasing annuities from an insurance company. This reflects an estimate of how many participants we expect will accept a lump sum offering, and an estimate of lump sum payouts for those participants based on the current lump sum rates approved by the IRS. Liabilities expected to be settled through annuity contracts have been estimated based on future benefit payments, discounted based on current interest rates that correspond to the liability payouts, adjusted to reflect a premium that would be assessed by the insurer. We expect to settle the liabilities by the end of fiscal 2015. As the liabilities are settled, unamortized losses in accumulated other comprehensive income will be recognized based on the projected benefit obligations and assets measured as of the dates the settlements occur. The amount of unamortized losses was $68 million at September 30, 2014. Prior to settling the liabilities, we will contribute such additional amounts (currently estimated to be approximately $25 million) as may be necessary to fully fund the Plan. Such contributions are expected to be made concurrently with settling the liabilities but may be made earlier at our discretion.

Disclosure of accounting policy for pension plans. This accounting policy may address (1) the types of plans sponsored by the entity (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived.

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