Income Taxes	6 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes During the second quarters of 2017 and 2016, income tax expense related to continuing operations was $200 million and $244 million and included net discrete tax benefits of $22 million and $24 million. During the first six months of 2017 and 2016, income tax expense related to continuing operations was $439 million and $500 million and included net discrete tax benefits of $57 million and $29 million. Our discrete tax benefits for the second quarter and first six months of 2017 include tax benefits of $9 million and $46 million related to the adoption of the amended accounting guidance on employee share-based compensation. During the second quarter of 2016, we evaluated the recent U.S. Tax Court’s decision in Altera Corp. v. Commissioner related to the treatment of share-based compensation expense in an intercompany cost-sharing agreement and recognized a discrete tax benefit of $25 million. The income tax provision for the second quarter and first six months of 2017 also includes a tax benefit of $8 million related to the non-cash pre-tax charge of $290 million to impair the carrying value of goodwill related to our EIS business within our Technology Solutions segment. Approximately $269 million of the total goodwill impairment charge was not tax deductible. Our reported income tax rates for the second quarters of 2017 and 2016 were 38.1% and 27.7% and for the first six months of 2017 and 2016 were 30.5% and 28.8%. The fluctuations in our reported income tax rates are primarily due to changes within our business mix, including varying proportions of income attributable to foreign countries that have lower income tax rates, the impact of the nondeductible impairment charge and discrete items. As of September 30, 2016, we had $424 million of unrecognized tax benefits, of which $284 million would reduce income tax expense and the effective tax rate, if recognized. Based on the information currently available, we do not anticipate a significant increase or decrease to our unrecognized tax benefits within the next 12 months. However, this may change as we continue to have ongoing negotiations with various taxing authorities throughout the year. We report interest and penalties on tax deficiencies as income tax expense. We recognized income tax benefit of $8 million and income tax expense of $1 million during the second quarters of 2017 and 2016; and income tax benefit of $11 million and income tax expense of $5 million during the first six months of 2017 and 2016, before any tax benefit, related to interest and penalties in our condensed consolidated statements of operations. At September 30, 2016 and 2015, before any tax benefits, our accrued interest and penalties on unrecognized tax benefits amounted to $41 million and $75 million. We file income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions and various foreign jurisdictions. During the first quarter of 2017, we reached an agreement with the Internal Revenue Service (“IRS”) to settle all outstanding issues relating to the fiscal years 2007 through 2009. This settlement did not have a material impact on our provision for income taxes. We are subject to audit by the IRS for fiscal years 2010 through the current fiscal year. We are generally subject to audit by taxing authorities in various U.S. states and in foreign jurisdictions for fiscal years 2006 through the current fiscal year.

Income Taxes

During the second quarters of 2017 and 2016, income tax expense related to continuing operations was $200 million and $244 million and included net discrete tax benefits of $22 million and $24 million. During the first six months of 2017 and 2016, income tax expense related to continuing operations was $439 million and $500 million and included net discrete tax benefits of $57 million and $29 million. Our discrete tax benefits for the second quarter and first six months of 2017 include tax benefits of $9 million and $46 million related to the adoption of the amended accounting guidance on employee share-based compensation.

During the second quarter of 2016, we evaluated the recent U.S. Tax Court’s decision in Altera Corp. v. Commissioner related to the treatment of share-based compensation expense in an intercompany cost-sharing agreement and recognized a discrete tax benefit of $25 million.

The income tax provision for the second quarter and first six months of 2017 also includes a tax benefit of $8 million related to the non-cash pre-tax charge of $290 million to impair the carrying value of goodwill related to our EIS business within our Technology Solutions segment. Approximately $269 million of the total goodwill impairment charge was not tax deductible.

Our reported income tax rates for the second quarters of 2017 and 2016 were 38.1% and 27.7% and for the first six months of 2017 and 2016 were 30.5% and 28.8%. The fluctuations in our reported income tax rates are primarily due to changes within our business mix, including varying proportions of income attributable to foreign countries that have lower income tax rates, the impact of the nondeductible impairment charge and discrete items.

As of September 30, 2016, we had $424 million of unrecognized tax benefits, of which $284 million would reduce income tax expense and the effective tax rate, if recognized. Based on the information currently available, we do not anticipate a significant increase or decrease to our unrecognized tax benefits within the next 12 months. However, this may change as we continue to have ongoing negotiations with various taxing authorities throughout the year.

We report interest and penalties on tax deficiencies as income tax expense. We recognized income tax benefit of $8 million and income tax expense of $1 million during the second quarters of 2017 and 2016; and income tax benefit of $11 million and income tax expense of $5 million during the first six months of 2017 and 2016, before any tax benefit, related to interest and penalties in our condensed consolidated statements of operations. At September 30, 2016 and 2015, before any tax benefits, our accrued interest and penalties on unrecognized tax benefits amounted to $41 million and $75 million.

We file income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions and various foreign jurisdictions. During the first quarter of 2017, we reached an agreement with the Internal Revenue Service (“IRS”) to settle all outstanding issues relating to the fiscal years 2007 through 2009. This settlement did not have a material impact on our provision for income taxes. We are subject to audit by the IRS for fiscal years 2010 through the current fiscal year. We are generally subject to audit by taxing authorities in various U.S. states and in foreign jurisdictions for fiscal years 2006 through the current fiscal year.