Accounting Changes	6 Months Ended
Mar. 31, 2018
Accounting Changes and Error Corrections [Abstract]
Accounting Changes	Accounting Changes New Accounting Principle Adopted In the second quarter of its fiscal year 2018, the Company prospectively adopted an accounting standard update issued by the Financial Accounting Standards Board ("FASB") relating to the stranded income tax effects on items within Accumulated other comprehensive income (loss) resulting from the enactment of new U.S. tax legislation, which legislation is further discussed in Note 14. Additional disclosures regarding this accounting standard adoption are provided in Note 3. New Accounting Principles Not Yet Adopted In February 2016, the FASB issued a new lease accounting standard which requires lessees to recognize lease assets and lease liabilities on the balance sheet. The new standard also requires expanded disclosures regarding leasing arrangements. The Company is currently evaluating the impact that this new lease accounting standard will have on its consolidated financial statements upon its adoption of the standard on October 1, 2019. In May 2014, the FASB issued a new revenue recognition standard. Under this standard, revenue will be recognized upon the transfer of goods or services to customers and the amount of revenue recognized will reflect the consideration to which a reporting entity expects to be entitled in exchange for those goods or services. The Company will adopt the standard on October 1, 2018 and currently plans to use the modified retrospective method. The Company has completed an initial assessment to identify the potential areas of impact that this new revenue recognition standard will have on its consolidated financial statements. As part of the initial assessment, the Company reviewed a representative sample of its contracts across its various businesses and geographies to identify potential differences that could result from applying the requirements of the new standard. The analysis included identifying whether there may be differences in timing of revenue recognition under the new standard as well as assessing performance obligations, variable consideration, and contract costs. The Company has not yet estimated the impact of the new standard on the timing and pattern of its revenue recognition. The Company continues to apprise its audit committee of the project status regularly.

Accounting Changes

New Accounting Principle Adopted

In the second quarter of its fiscal year 2018, the Company prospectively adopted an accounting standard update issued by the Financial Accounting Standards Board ("FASB") relating to the stranded income tax effects on items within Accumulated other comprehensive income (loss) resulting from the enactment of new U.S. tax legislation, which legislation is further discussed in Note 14. Additional disclosures regarding this accounting standard adoption are provided in Note 3.

New Accounting Principles Not Yet Adopted

In February 2016, the FASB issued a new lease accounting standard which requires lessees to recognize lease assets and lease liabilities on the balance sheet. The new standard also requires expanded disclosures regarding leasing arrangements. The Company is currently evaluating the impact that this new lease accounting standard will have on its consolidated financial statements upon its adoption of the standard on October 1, 2019.

In May 2014, the FASB issued a new revenue recognition standard. Under this standard, revenue will be recognized upon the transfer of goods or services to customers and the amount of revenue recognized will reflect the consideration to which a reporting entity expects to be entitled in exchange for those goods or services. The Company will adopt the standard on October 1, 2018 and currently plans to use the modified retrospective method. The Company has completed an initial assessment to identify the potential areas of impact that this new revenue recognition standard will have on its consolidated financial statements. As part of the initial assessment, the Company reviewed a representative sample of its contracts across its various businesses and geographies to identify potential differences that could result from applying the requirements of the new standard. The analysis included identifying whether there may be differences in timing of revenue recognition under the new standard as well as assessing performance obligations, variable consideration, and contract costs. The Company has not yet estimated the impact of the new standard on the timing and pattern of its revenue recognition. The Company continues to apprise its audit committee of the project status regularly.