Income Taxes	6 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	(9) INCOME TAXES We estimate our annual effective tax rate at the end of each quarterly period, and we record the tax effect of certain discrete items, which are unusual or occur infrequently, in the interim period in which they occur, including changes in judgment about deferred tax valuation allowances. In addition, jurisdictions with a projected loss for the year, jurisdictions with a year-to-date loss where no tax benefit can be recognized, and jurisdictions where we are unable to estimate an annual effective tax rate are excluded from the estimated annual effective tax rate. The impact of such an exclusion could result in a higher or lower effective tax rate during a particular quarter depending on the mix and timing of actual earnings versus annual projections. We recognize deferred tax assets and liabilities for both the expected impact of differences between the financial statement amount and the tax basis of assets and liabilities and for the expected future tax benefit to be derived from tax losses and tax credit carryforwards. We record a valuation allowance against deferred tax assets when it is considered more likely than not that all or a portion of our deferred tax assets will not be realized. In making this determination, we are required to give significant weight to evidence that can be objectively verified. In addition to considering forecasts of future taxable income, we are also required to evaluate and quantify other possible sources of taxable income in order to assess the realization of our deferred tax assets, namely the reversal of existing deferred tax liabilities, the carry back of losses and credits as allowed under current tax law, and the implementation of tax planning strategies. Evaluating and quantifying these amounts involves significant judgments. Each source of income must be evaluated based on all positive and negative evidence; this evaluation involves assumptions about future activity. In the fourth quarter of fiscal year 2016, we determined that the positive evidence overcame any negative evidence and concluded that it was more likely than not that the U.S. deferred tax assets were realizable. As a result, we released the valuation allowance against all of the U.S. federal deferred tax assets and a portion of the U.S. state deferred tax assets during the fourth quarter of fiscal year 2016, and we continue to believe those deferred tax assets are realizable as of September 30, 2016. We maintain a valuation allowance related to specific U.S. state deferred tax assets and foreign capital loss carryovers, due to uncertainty about the future realization of these assets. The provision for income taxes reported for the three and six months ended September 30, 2016 is based on our projected annual effective tax rate for fiscal year 2017, and also includes certain discrete items recorded during the period. Our effective tax rate for the three and six months ended September 30, 2016 was 26.9 percent and 19.6 percent, respectively, as compared to 9.4 percent and 20.7 percent, respectively, for the same period of fiscal year 2016. The effective tax rate for the three and six months ended September 30, 2016 was reduced, when compared to the statutory rate of 35.0 percent, due primarily to non-U.S. profits subject to a reduced or zero tax rate. The effective tax rate for the three and six months ended September 30, 2015 was reduced, when compared to the statutory rate of 35.0 percent, by the utilization of U.S. deferred tax assets which were subject to a valuation allowance and non-U.S. profits subject to a reduced or zero tax rate. Conversely, the effective tax rate for the three and six months ended September 30, 2015 was increased due to a discrete expense of $25 million and $65 million, respectively, for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital. The effective tax rate for the three and six months ended September 30, 2016 differs from the same periods in fiscal year 2016 primarily due to the utilization of U.S. deferred tax assets in fiscal year 2016 which were subject to a valuation allowance and the discrete expense for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital in fiscal year 2016. During the three and six months ended September 30, 2016, we recorded a net increase of $10 million and $18 million, respectively, in gross unrecognized tax benefits. The total gross unrecognized tax benefits as of September 30, 2016 is $349 million. A portion of our unrecognized tax benefits will affect our effective tax rate if they are recognized upon favorable resolution of the uncertain tax positions. As of September 30, 2016, if recognized, approximately $322 million of the unrecognized tax benefits would affect our effective tax rate and approximately $28 million would result in adjustments to deferred tax assets with corresponding adjustments to the valuation allowance. During the three and six months ended September 30, 2016, we recorded a net increase of $1 million and $2 million, respectively, for accrued interest and penalties related to tax positions taken on our tax returns. As of September 30, 2016, the combined amount of accrued interest and penalties related to uncertain tax positions included in income tax obligations on our Condensed Consolidated Balance Sheet was approximately $16 million. We file income tax returns in the United States, including various state and local jurisdictions. Our subsidiaries file tax returns in various foreign jurisdictions, including Canada, France, Germany, Switzerland and the United Kingdom. The IRS is currently examining our returns for fiscal years 2009 through 2011, and we remain subject to income tax examination by the IRS for fiscal years after 2012. We are also currently under income tax examination in the United Kingdom for fiscal years 2010 through 2014, and in France for fiscal years 2014 through 2016. We remain subject to income tax examination for several other jurisdictions including in Germany for fiscal years after 2012, in the United Kingdom for fiscal years after 2014, in Canada for fiscal years after 2008, and in Switzerland for fiscal years after 2007. The timing of the resolution of income tax examinations is highly uncertain, and the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ materially from the amounts accrued for each year. Although potential resolution of uncertain tax positions involves multiple tax periods and jurisdictions, it is reasonably possible that a reduction of up to $67 million of unrecognized tax benefits may occur within the next 12 months, some of which, depending on the nature of the settlement or expiration of statutes of limitations, may affect the Company’s income tax provision and therefore benefit the resulting effective tax rate. The actual amount could vary significantly depending on the ultimate timing and nature of any settlements.

(9) INCOME TAXES

We estimate our annual effective tax rate at the end of each quarterly period, and we record the tax effect of certain discrete items, which are unusual or occur infrequently, in the interim period in which they occur, including changes in judgment about deferred tax valuation allowances. In addition, jurisdictions with a projected loss for the year, jurisdictions with a year-to-date loss where no tax benefit can be recognized, and jurisdictions where we are unable to estimate an annual effective tax rate are excluded from the estimated annual effective tax rate. The impact of such an exclusion could result in a higher or lower effective tax rate during a particular quarter depending on the mix and timing of actual earnings versus annual projections.

We recognize deferred tax assets and liabilities for both the expected impact of differences between the financial statement amount and the tax basis of assets and liabilities and for the expected future tax benefit to be derived from tax losses and tax credit carryforwards. We record a valuation allowance against deferred tax assets when it is considered more likely than not that all or a portion of our deferred tax assets will not be realized. In making this determination, we are required to give significant weight to evidence that can be objectively verified.

In addition to considering forecasts of future taxable income, we are also required to evaluate and quantify other possible sources of taxable income in order to assess the realization of our deferred tax assets, namely the reversal of existing deferred tax liabilities, the carry back of losses and credits as allowed under current tax law, and the implementation of tax planning strategies. Evaluating and quantifying these amounts involves significant judgments. Each source of income must be evaluated based on all positive and negative evidence; this evaluation involves assumptions about future activity.

In the fourth quarter of fiscal year 2016, we determined that the positive evidence overcame any negative evidence and concluded that it was more likely than not that the U.S. deferred tax assets were realizable. As a result, we released the valuation allowance against all of the U.S. federal deferred tax assets and a portion of the U.S. state deferred tax assets during the fourth quarter of fiscal year 2016, and we continue to believe those deferred tax assets are realizable as of September 30, 2016. We maintain a valuation allowance related to specific U.S. state deferred tax assets and foreign capital loss carryovers, due to uncertainty about the future realization of these assets.

The provision for income taxes reported for the three and six months ended September 30, 2016 is based on our projected annual effective tax rate for fiscal year 2017, and also includes certain discrete items recorded during the period. Our effective tax rate for the three and six months ended September 30, 2016 was 26.9 percent and 19.6 percent, respectively, as compared to 9.4 percent and 20.7 percent, respectively, for the same period of fiscal year 2016. The effective tax rate for the three and six months ended September 30, 2016 was reduced, when compared to the statutory rate of 35.0 percent, due primarily to non-U.S. profits subject to a reduced or zero tax rate. The effective tax rate for the three and six months ended September 30, 2015 was reduced, when compared to the statutory rate of 35.0 percent, by the utilization of U.S. deferred tax assets which were subject to a valuation allowance and non-U.S. profits subject to a reduced or zero tax rate. Conversely, the effective tax rate for the three and six months ended September 30, 2015 was increased due to a discrete expense of $25 million and $65 million, respectively, for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital. The effective tax rate for the three and six months ended September 30, 2016 differs from the same periods in fiscal year 2016 primarily due to the utilization of U.S. deferred tax assets in fiscal year 2016 which were subject to a valuation allowance and the discrete expense for excess tax benefits from stock-based compensation deductions allocated directly to contributed capital in fiscal year 2016.

During the three and six months ended September 30, 2016, we recorded a net increase of $10 million and $18 million, respectively, in gross unrecognized tax benefits. The total gross unrecognized tax benefits as of September 30, 2016 is $349 million. A portion of our unrecognized tax benefits will affect our effective tax rate if they are recognized upon favorable resolution of the uncertain tax positions. As of September 30, 2016, if recognized, approximately $322 million of the unrecognized tax benefits would affect our effective tax rate and approximately $28 million would result in adjustments to deferred tax assets with corresponding adjustments to the valuation allowance.

During the three and six months ended September 30, 2016, we recorded a net increase of $1 million and $2 million, respectively, for accrued interest and penalties related to tax positions taken on our tax returns. As of September 30, 2016, the combined amount of accrued interest and penalties related to uncertain tax positions included in income tax obligations on our Condensed Consolidated Balance Sheet was approximately $16 million.

We file income tax returns in the United States, including various state and local jurisdictions. Our subsidiaries file tax returns in various foreign jurisdictions, including Canada, France, Germany, Switzerland and the United Kingdom. The IRS is currently examining our returns for fiscal years 2009 through 2011, and we remain subject to income tax examination by the IRS for fiscal years after 2012.

We are also currently under income tax examination in the United Kingdom for fiscal years 2010 through 2014, and in France for fiscal years 2014 through 2016. We remain subject to income tax examination for several other jurisdictions including in Germany for fiscal years after 2012, in the United Kingdom for fiscal years after 2014, in Canada for fiscal years after 2008, and in Switzerland for fiscal years after 2007.

The timing of the resolution of income tax examinations is highly uncertain, and the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ materially from the amounts accrued for each year. Although potential resolution of uncertain tax positions involves multiple tax periods and jurisdictions, it is reasonably possible that a reduction of up to $67 million of unrecognized tax benefits may occur within the next 12 months, some of which, depending on the nature of the settlement or expiration of statutes of limitations, may affect the Company’s income tax provision and therefore benefit the resulting effective tax rate. The actual amount could vary significantly depending on the ultimate timing and nature of any settlements.