Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Apr. 01, 2016
Basis Of Presentation [Abstract]
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of financial statements in conformity with U.S. GAAP requires us to employ estimates and make assumptions that affect the reported amounts of certain assets and liabilities, the revenues and expenses reported for the periods covered by the accompanying consolidated financial statements, and certain amounts disclosed in these Notes to the Consolidated Financial Statements. Although such estimates and assumptions are based on management’s most recent assessment of the underlying facts and circumstances utilizing the most current information available and past experience, actual results could differ significantly from those estimates and assumptions. Our estimates, judgments, and assumptions are evaluated periodically and adjusted accordingly. Please refer to Note 2—Significant Accounting Policies of Notes to Consolidated Financial Statements included in our 2015 Form 10-K for a discussion of the significant estimates and assumptions affecting our consolidated financial statements.
New Accounting Pronouncements	From time to time, the Financial Accounting Standards Board (“FASB”) issues accounting standards updates (each being an “ASU”) to its Accounting Standards Codification (“ASC”), which constitutes the primary source of U.S. GAAP. The Company regularly monitors ASUs as they are issued and considers their applicability to its business. All ASUs applicable to the Company are adopted by the due date and in the manner prescribed by the FASB. In May 2014, the FASB issued ASU No. 2014-09—Revenue from Contracts with Customers. The new guidance provided by ASU 2014-09 is intended to remove inconsistencies and perceived weaknesses in the existing revenue requirements, provide a more robust framework for addressing revenue issues, improve comparability, provide more useful information and simplify the preparation of financial statements. ASU 2014-09 was initially effective for annual and interim reporting periods beginning after December 15, 2016. On July 9, 2015, the FASB approved a one-year deferral of the effective date of this standard. The revised effective date for the standard is for annual reporting periods beginning after December 15, 2017 and interim periods therein. The FASB also approved changes allowing for early adoption of the standard as of the original effective date. The Company continues to evaluate the impact that the new guidance may have on its consolidated financial statements. In February 2016, the FASB issued ASU 2016-02—Leases. ASU 2016-02 requires lessees to recognize assets and liabilities for most leases. ASU 2016-02 is effective for public entity financial statements for annual periods beginning after December 15, 2018, and interim periods within those annual periods. Early adoption is permitted, including adoption in an interim period. The guidance must be adopted using a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. The Company is evaluating the impact of the new guidance on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09—Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any entity in any interim or annual period for which financial statements have not been issued or made available for issuance. If an entity early adopts the amendments in an interim period, any adjustments must be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. The Company is evaluating the impact of the new guidance on its consolidated financial statements. During the second quarter of fiscal 2016, the Company adopted the provisions of ASU 2015-17—Balance Sheet Classification of Deferred Taxes. ASU 2015-17 removes the requirement to separate deferred income tax liabilities and assets into current and noncurrent amounts in a classified statement of financial position. Instead, the update requires that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position. ASU 2015-17 is effective for entities for fiscal years beginning after December 15, 2016, with retrospective application to all periods presented. Early application is permitted. The Company adopted ASU 2015-17 on a retrospective basis. Accordingly, the current deferred taxes and noncurrent deferred tax assets included in miscellaneous noncurrent assets on the October 2, 2015 Consolidated Balance Sheet were reclassified to noncurrent deferred taxes, which increased noncurrent deferred tax assets $160.3 million and decreased miscellaneous noncurrent assets by $213.8 million.