Income Taxes	6 Months Ended
Mar. 31, 2018
Income Taxes
Income Taxes	10. Income Taxes Our effective tax rate for the first six months of fiscal 2018 and 2017 was 9,084.7 percent and 32.5 percent, respectively. Our effective tax rate for the three months ended March 31, 2018 and 2017 was 70.6 percent and 31.0 percent, respectively. The effective tax rate for the six and three months ended March 31, 2018 was impacted by a discrete income tax adjustment related to the reduction of the federal statutory corporate income tax rate as part of the Tax Cuts and Job Act (the “Act”) which was enacted on December 22, 2017. The related discrete tax benefit recorded for the six and three months ended March 31, 2018 was $501.8 million and $1.4 million, respectively. In addition, effective tax rates differ from the U.S. federal statutory rate (24.5 percent for fiscal 2018 and 35.0 percent for fiscal 2017) due to non-deductible permanent items and state and foreign income taxes. At March 31, 2018, we have not completed our accounting for all of the tax effects of the Act and recorded an additional tax benefit of $1.4 million to the provisional tax benefit recorded under Staff Accounting Bulletin No. 118 at December 31, 2017. In addition, we have considered the impact of the statutory changes enacted by the Act, including those provisions effective for the fiscal 2018 tax year, in our estimated annual effective tax rate for fiscal 2018 and have recorded provisional amounts, based on reasonable estimates, in our income tax provision for the six and three months ended March 31, 2018. For the next 12 months, we cannot predict with certainty whether we will achieve ultimate resolution of any uncertain tax positions associated with our U.S. and international operations that could result in increases or decreases of our unrecognized tax benefits. However, we do not expect the increases or decreases to have a material effect on our results of continuing operations or financial position.

10. Income Taxes

Our effective tax rate for the first six months of fiscal 2018 and 2017 was 9,084.7 percent and 32.5 percent, respectively. Our effective tax rate for the three months ended March 31, 2018 and 2017 was 70.6 percent and 31.0 percent, respectively. The effective tax rate for the six and three months ended March 31, 2018 was impacted by a discrete income tax adjustment related to the reduction of the federal statutory corporate income tax rate as part of the Tax Cuts and Job Act (the “Act”) which was enacted on December 22, 2017. The related discrete tax benefit recorded for the six and three months ended March 31, 2018 was $501.8 million and $1.4 million, respectively. In addition, effective tax rates differ from the U.S. federal statutory rate (24.5 percent for fiscal 2018 and 35.0 percent for fiscal 2017) due to non-deductible permanent items and state and foreign income taxes.

At March 31, 2018, we have not completed our accounting for all of the tax effects of the Act and recorded an additional tax benefit of $1.4 million to the provisional tax benefit recorded under Staff Accounting Bulletin No. 118 at December 31, 2017. In addition, we have considered the impact of the statutory changes enacted by the Act, including those provisions effective for the fiscal 2018 tax year, in our estimated annual effective tax rate for fiscal 2018 and have recorded provisional amounts, based on reasonable estimates, in our income tax provision for the six and three months ended March 31, 2018.

For the next 12 months, we cannot predict with certainty whether we will achieve ultimate resolution of any uncertain tax positions associated with our U.S. and international operations that could result in increases or decreases of our unrecognized tax benefits. However, we do not expect the increases or decreases to have a material effect on our results of continuing operations or financial position.