Income Taxes	3 Months Ended
Dec. 31, 2018
Income Taxes
Income Taxes	10. Income Taxes The Company's effective tax rate was (106.7)% and (60.9)% for the three months ended December 31, 2018 and 2017, respectively. The most significant item contributing to the difference between the statutory U.S. federal income tax rate of 21.0% and the Company's effective tax rate for the three month period ended December 31, 2018 was a $38.1 million benefit related to the release of a valuation allowance on foreign tax credits. This item is not expected to have a continuing impact on the effective tax rate for the remainder of the fiscal year. The most significant items contributing to the difference between the statutory U.S. federal income tax rate of 24.5% and the Company’s effective tax rate for the three month period ended December 31, 2017 were a $41.7 million net benefit related to one-time U.S. federal tax law changes and a benefit of $11.2 million related to changes in uncertain tax positions primarily in the U.S. and Canada. During the first quarter of fiscal 2019, a valuation allowance in the amount of $38.1 million related to foreign tax credits was released due to sufficient positive evidence obtained during the quarter. The positive evidence included the issuance of regulations during the quarter related to The Tax Cuts and Jobs Act (Tax Act) and forecasting the utilization of the foreign tax credits within the foreseeable future. The Company evaluated the new positive evidence against any negative evidence to determine the valuation allowance was no longer needed. During the first quarter of fiscal 2018, President Trump signed the Tax Act into law. The Tax Act reduced the Company’s U.S. federal corporate tax rate from 35% to 21%, required companies to pay a one-time transition tax on accumulated earnings of foreign subsidiaries, created new taxes on certain foreign sourced earnings, and eliminated or reduced certain deductions. Other significant provisions included a base erosion anti-abuse tax (BEAT) on excessive amounts paid to foreign related parties and a minimum tax on global intangible low-taxed income (GILTI). The Company has made an accounting policy election to recognize the current tax impact of GILTI as a period cost and has included the impact in the estimated annual effective tax rate as of December 31, 2018. Given the significance of the Tax Act, the SEC staff issued Staff Accounting Bulletin No. 118 (SAB 118), which allowed registrants to record provisional amounts during a one year “measurement period” similar to that used when accounting for business combinations. As of December 31, 2018, the Company has completed its accounting for the tax effects of enactment of the Tax Act. The Company is utilizing the annual effective tax rate method under ASC 740 to compute its interim tax provision. The Company’s effective tax rate fluctuates from quarter to quarter due to various factors including the change in the mix of global income and expenses, outcomes of administrative audits, changes in the assessment of valuation allowances due to management’s consideration of new positive or negative evidence during the quarter, and changes in enacted tax laws and their interpretations which upon enactment include possible tax reform around the world arising from the result of the base erosion and profit shifting project undertaken by the Organisation for Economic Co-operation Development which, if finalized and adopted, could have a material impact on the Company’s income tax expense and deferred tax balances. The Company is currently under tax audit in several jurisdictions and believes the outcomes which are reasonably possible within the next twelve months, including lapses in statutes of limitations, could result in adjustments, but will not result in a material change in the liability for uncertain tax positions. Generally, the Company does not provide for U.S. taxes or foreign withholding taxes on gross book-tax differences in its non-U.S. subsidiaries because such basis differences of approximately $1.8 billion are able to and intended to be reinvested indefinitely. At December 31, 2018, the Company has determined it will continue to indefinitely reinvest the earnings of certain foreign subsidiaries and therefore will continue to account for these undistributed earnings based on existing accounting under ASC 740 and not accrue additional tax outside of the one-time transition tax described above. There may also be additional U.S. or foreign income tax liability upon repatriation, although the calculation of such additional taxes is not practicable.

10. Income Taxes

The Company's effective tax rate was (106.7)% and (60.9)% for the three months ended December 31, 2018 and 2017, respectively. The most significant item contributing to the difference between the statutory U.S. federal income tax rate of 21.0% and the Company's effective tax rate for the three month period ended December 31, 2018 was a $38.1 million benefit related to the release of a valuation allowance on foreign tax credits. This item is not expected to have a continuing impact on the effective tax rate for the remainder of the fiscal year. The most significant items contributing to the difference between the statutory U.S. federal income tax rate of 24.5% and the Company’s effective tax rate for the three month period ended December 31, 2017 were a $41.7 million net benefit related to one-time U.S. federal tax law changes and a benefit of $11.2 million related to changes in uncertain tax positions primarily in the U.S. and Canada.

During the first quarter of fiscal 2019, a valuation allowance in the amount of $38.1 million related to foreign tax credits was released due to sufficient positive evidence obtained during the quarter. The positive evidence included the issuance of regulations during the quarter related to The Tax Cuts and Jobs Act (Tax Act) and forecasting the utilization of the foreign tax credits within the foreseeable future. The Company evaluated the new positive evidence against any negative evidence to determine the valuation allowance was no longer needed.

During the first quarter of fiscal 2018, President Trump signed the Tax Act into law. The Tax Act reduced the Company’s U.S. federal corporate tax rate from 35% to 21%, required companies to pay a one-time transition tax on accumulated earnings of foreign subsidiaries, created new taxes on certain foreign sourced earnings, and eliminated or reduced certain deductions.

Other significant provisions included a base erosion anti-abuse tax (BEAT) on excessive amounts paid to foreign related parties and a minimum tax on global intangible low-taxed income (GILTI). The Company has made an accounting policy election to recognize the current tax impact of GILTI as a period cost and has included the impact in the estimated annual effective tax rate as of December 31, 2018.

Given the significance of the Tax Act, the SEC staff issued Staff Accounting Bulletin No. 118 (SAB 118), which allowed registrants to record provisional amounts during a one year “measurement period” similar to that used when accounting for business combinations. As of December 31, 2018, the Company has completed its accounting for the tax effects of enactment of the Tax Act.

The Company is utilizing the annual effective tax rate method under ASC 740 to compute its interim tax provision. The Company’s effective tax rate fluctuates from quarter to quarter due to various factors including the change in the mix of global income and expenses, outcomes of administrative audits, changes in the assessment of valuation allowances due to management’s consideration of new positive or negative evidence during the quarter, and changes in enacted tax laws and their interpretations which upon enactment include possible tax reform around the world arising from the result of the base erosion and profit shifting project undertaken by the Organisation for Economic Co-operation Development which, if finalized and adopted, could have a material impact on the Company’s income tax expense and deferred tax balances.

The Company is currently under tax audit in several jurisdictions and believes the outcomes which are reasonably possible within the next twelve months, including lapses in statutes of limitations, could result in adjustments, but will not result in a material change in the liability for uncertain tax positions.

Generally, the Company does not provide for U.S. taxes or foreign withholding taxes on gross book-tax differences in its non-U.S. subsidiaries because such basis differences of approximately $1.8 billion are able to and intended to be reinvested indefinitely. At December 31, 2018, the Company has determined it will continue to indefinitely reinvest the earnings of certain foreign subsidiaries and therefore will continue to account for these undistributed earnings based on existing accounting under ASC 740 and not accrue additional tax outside of the one-time transition tax described above. There may also be additional U.S. or foreign income tax liability upon repatriation, although the calculation of such additional taxes is not practicable.