New Accounting Pronouncements	9 Months Ended
New Accounting Pronouncements	Jun. 28, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Lease Accounting 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 new guidance requires a modified retrospective transition approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. ASU 2016-02 was further clarified and amended within ASU 2017-13, ASU 2018-01, ASU 2018-10 and ASU 2018-11 which included provisions that would provide us with the option to adopt the provisions of the new guidance using a modified retrospective transition approach, without adjusting the comparative periods presented. The Company is evaluating the impact of the new guidance on its consolidated financial statements. This standard could have a significant administrative impact on its operations, and the Company will further assess the impact through its implementation program. Other Pronouncements In the first quarter of fiscal 2019, the Company adopted ASU 2016-01, Financial Instruments - Overall - Recognition and Measurement of Financial Assets and Financial Liabilities. This ASU requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and to recognize any changes in fair value in net income unless the investments qualify for a practicability exception. The adoption of ASU 2016-01 in the first quarter did not impact the Company’s financial position, results of operations or cash flows. However, as described in Note 7- Sale of Energy, Chemicals and Resources ("ECR") Business, the Company received ordinary shares of WorleyParsons during the third quarter of 2019 which are measured at fair value through net income in accordance with ASU 2016-01. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 provides financial reporting improvements related to hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. Additionally, ASU No. 2017-12 makes certain targeted improvements to simplify the application of the hedge accounting guidance. The revised guidance becomes effective for fiscal years beginning after December 15, 2018 with early adoption permitted. The Company is evaluating the impact of the new guidance on its consolidated financial statements. It is not expected that the updated guidance will have a significant impact on the Company’s consolidated financial statements. ASU 2017-04, Simplifying the Test for Goodwill Impairment, is effective for fiscal years beginning after December 15, 2019 with early adoption permitted. ASU 2017-04 removes the second step of the goodwill impairment test, which requires a hypothetical purchase price allocation. An entity will now recognize a goodwill impairment charge for the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the amount of goodwill allocated to the reporting unit. Management does not expect the adoption of ASU 2017-04 to have any impact on the Company's financial position, results of operations or cash flows. ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments requires entities to use a current lifetime expected credit loss methodology to measure impairments of certain financial assets. Using this methodology will result in earlier recognition of losses than under the current incurred loss approach, which requires waiting to recognize a loss until it is probable of having been incurred. There are other provisions within the standard that affect how impairments of other financial assets may be recorded and presented, and that expand disclosures. This standard will be effective for our interim and annual periods beginning with the first quarter of fiscal 2021, and must be applied on a modified retrospective basis. We are currently evaluating the potential impact of this standard.