Income Taxes

6 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

Note 13—Income Taxes

The effective income tax rates were 19% for the three and six months ended March 31, 2020 and 2019.

During the three and six months ended March 31, 2020, the Company’s gross unrecognized tax benefits increased by $112 million and $175 million, respectively. The Company’s net unrecognized tax benefits that, if recognized, would favorably impact the effective tax rate, increased by $26 million and $39 million, respectively. The change in unrecognized tax benefits is primarily related to various tax positions across several jurisdictions. During the three and six months ended March 31, 2020 and 2019, there were no significant changes in interest and penalties related to uncertain tax positions.

The Company’s tax filings are subject to examination by the U.S. federal, state and foreign taxing authorities. The timing and outcome of the final resolutions of the various ongoing income tax examinations are highly uncertain. It is not reasonably possible to estimate the increase or decrease in unrecognized tax benefits within the next twelve months.

The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was enacted in the U.S. on March 27, 2020. The CARES Act includes several U.S. income tax provisions related to, among other things, net operating loss carrybacks, alternative minimum tax credits, modifications to the net interest deduction limitations, and technical amendments regarding the income tax depreciation of qualified improvement property placed in service after December 31, 2017. The CARES Act is not expected to have a material impact on the Company’s financial results.