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Income Taxes
6 Months Ended
Mar. 31, 2026
Income Tax Disclosure [Abstract]  
Income Taxes
Note 14—Income Taxes
For the three and six months ended March 31, 2026, the effective income tax rates were 16% and 15%, respectively. For the three and six months ended March 31, 2025, the effective income tax rates were 16% and 17%, respectively. The effective income tax rates differ primarily due to the following:
For the three and six months ended March 31, 2026, a $217 million tax benefit as a result of a tax position taken on certain expenses;
For the six months ended March 31, 2026, a $333 million deferred tax benefit due to a change in the U.S. taxation of certain foreign earnings; and
For the three and six months ended March 31, 2025, a $222 million tax benefit as a result of a tax position taken on certain expenses, partially offset by a $71 million tax expense related to the resolution of a tax matter.
For the three and six months ended March 31, 2026, the Company’s gross unrecognized tax benefits increased $24 million and $37 million, respectively, and the Company’s net unrecognized tax benefits increased $22 million and $33 million, respectively. The change in unrecognized tax benefits is related to various tax positions across several jurisdictions.
For fiscal 2016 through 2018, the Internal Revenue Service completed its examination of the Company’s U.S. federal income tax returns. The Company is filing an appeal due to an unresolved issue related to certain income tax deductions.
The Company’s tax filings are subject to examination by U.S. federal, state and foreign taxing authorities. The timing and outcome of the final resolutions of the various ongoing income tax examinations and refund claims are uncertain.