Income Taxes	6 Months Ended
Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Fluctuations in our provision for income taxes as a percentage of pretax earnings (“effective tax rate”) are due to changes in international and U.S. state effective tax rates resulting from our business mix and discrete items. During the three months ended December 31, 2014, the effective tax rate of 36.0 percent was unfavorably impacted by 3.0 percentage points ($13 million) due to nondeductibility of litigation charges and favorably impacted by 3.1 percentage points ($14 million) related to a previously unrecognized tax benefit for a loss carryback from fiscal 2007. During the six months ended December 31, 2014, the effective tax rate of 37.4 percent was unfavorably impacted by 1.4 percentage points ($12 million) due to the remeasurement of unrecognized tax benefits and 2.7 percentage points ($24 million) due to nondeductibility of litigation charges, partially offset by 1.6 percentage points ($14 million) due to adjusting deferred tax assets and related valuation allowances for the impact of Puerto Rico tax law changes enacted during the period and 1.6 percentage points ($14 million) related to a previously unrecognized tax benefit for a loss carryback from fiscal 2007. During the three months ended December 31, 2013, the effective tax rate of 44.1 percent was impacted by net unfavorable discrete items of $38 million, which increased the rate by 7.7 percentage points. The discrete items include the unfavorable impact of remeasurement of unrecognized tax benefits ($56 million) as a result of proposed assessments of additional tax. During the six months ended December 31, 2013, the effective tax rate of 34.2 percent was impacted by net favorable discrete items of $23 million, which reduced the rate by 2.4 percentage points. The discrete items include the favorable impact of the settlement of federal and state tax controversies ($67 million) and the unfavorable impact of remeasurement of unrecognized tax benefits ($56 million). We had $525 million and $510 million of unrecognized tax benefits at December 31, 2014 and June 30, 2014, respectively. The December 31, 2014 and June 30, 2014 balances include $333 million and $322 million, respectively, of unrecognized tax benefits that, if recognized, would have an impact on the effective tax rate. The remaining unrecognized tax benefits relate to tax positions for which ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Recognition of these tax benefits would not affect our effective tax rate. We include the full amount of unrecognized tax benefits in deferred income taxes and other liabilities in the condensed consolidated balance sheets. We recognize accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. At December 31, 2014 and June 30, 2014, we had $155 million and $143 million, respectively, accrued for the payment of interest and penalties. These balances are gross amounts before any tax benefits and are included in deferred income taxes and other liabilities in the condensed consolidated balance sheets. It is reasonably possible that there could be a change in the amount of unrecognized tax benefits within the next 12 months due to activities of the U.S. Internal Revenue Service ("IRS") or other taxing authorities, including proposed assessments of additional tax, possible settlement of audit issues, reassessment of existing unrecognized tax benefits or the expiration of applicable statutes of limitations. We estimate that the range of the possible change in unrecognized tax benefits within the next 12 months is a net decrease of approximately zero to $180 million, exclusive of penalties and interest. We file income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions and various foreign jurisdictions. We are subject to audit by the IRS for fiscal years 2006 through the current fiscal year. We are generally subject to audit by taxing authorities in various U.S. state and foreign jurisdictions for fiscal years 2003 through the current fiscal year. The IRS is currently conducting audits of fiscal years 2006 through 2010, and our transfer pricing arrangements continue to be under consideration as part of these audits. While the IRS has made and could make proposed adjustments to our transfer pricing arrangements or other matters, we are defending our reported tax positions, and have accounted for the unrecognized tax benefits associated with our tax positions. We are a party to a tax matters agreement with CareFusion Corporation ("CareFusion"), under which CareFusion is obligated to indemnify us for certain tax exposures and transaction taxes prior to our fiscal 2010 spin-off of CareFusion. The indemnification receivable was $214 million and $210 million at December 31, 2014 and June 30, 2014, respectively, and is included in other assets in the condensed consolidated balance sheets.

Income Taxes

Fluctuations in our provision for income taxes as a percentage of pretax earnings (“effective tax rate”) are due to changes in international and U.S. state effective tax rates resulting from our business mix and discrete items.

During the three months ended December 31, 2014, the effective tax rate of 36.0 percent was unfavorably impacted by 3.0 percentage points ($13 million) due to nondeductibility of litigation charges and favorably impacted by 3.1 percentage points ($14 million) related to a previously unrecognized tax benefit for a loss carryback from fiscal 2007.

During the six months ended December 31, 2014, the effective tax rate of 37.4 percent was unfavorably impacted by 1.4 percentage points ($12 million) due to the remeasurement of unrecognized tax benefits and 2.7 percentage points ($24 million) due to nondeductibility of litigation charges, partially offset by 1.6 percentage points ($14 million) due to adjusting deferred tax assets and related valuation allowances for the impact of Puerto Rico tax law changes enacted during the period and 1.6 percentage points ($14 million) related to a previously unrecognized tax benefit for a loss carryback from fiscal 2007.

During the three months ended December 31, 2013, the effective tax rate of 44.1 percent was impacted by net unfavorable discrete items of $38 million, which increased the rate by 7.7 percentage points. The discrete items include the unfavorable impact of remeasurement of unrecognized tax benefits ($56 million) as a result of proposed assessments of additional tax.

During the six months ended December 31, 2013, the effective tax rate of 34.2 percent was impacted by net favorable discrete items of $23 million, which reduced the rate by 2.4 percentage points. The discrete items include the favorable impact of the settlement of federal and state tax controversies ($67 million) and the unfavorable impact of remeasurement of unrecognized tax benefits ($56 million).

We had $525 million and $510 million of unrecognized tax benefits at December 31, 2014 and June 30, 2014, respectively. The December 31, 2014 and June 30, 2014 balances include $333 million and $322 million, respectively, of unrecognized tax benefits that, if recognized, would have an impact on the effective tax rate. The remaining unrecognized tax benefits relate to tax positions for which ultimate deductibility is highly certain but for which there is uncertainty as to the timing of such deductibility. Recognition of these tax benefits would not affect our effective tax rate. We include the full amount of unrecognized tax benefits in deferred income taxes and other liabilities in the condensed consolidated balance sheets.

We recognize accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. At December 31, 2014 and June 30, 2014, we had $155 million and $143 million, respectively, accrued for the payment of interest and penalties. These balances are gross amounts before any tax benefits and are included in deferred income taxes and other liabilities in the condensed consolidated balance sheets.

It is reasonably possible that there could be a change in the amount of unrecognized tax benefits within the next 12 months due to activities of the U.S. Internal Revenue Service ("IRS") or other taxing authorities, including proposed assessments of additional tax, possible settlement of audit issues, reassessment of existing unrecognized tax benefits or the expiration of applicable statutes of limitations. We estimate that the range of the possible change in unrecognized tax benefits within the next 12 months is a net decrease of approximately zero to $180 million, exclusive of penalties and interest.

We file income tax returns in the U.S. federal jurisdiction, various U.S. state jurisdictions and various foreign jurisdictions. We are subject to audit by the IRS for fiscal years 2006 through the current fiscal year. We are generally subject to audit by taxing authorities in various U.S. state and foreign jurisdictions for fiscal years 2003 through the current fiscal year.

The IRS is currently conducting audits of fiscal years 2006 through 2010, and our transfer pricing arrangements continue to be under consideration as part of these audits. While the IRS has made and could make proposed adjustments to our transfer pricing arrangements or other matters, we are defending our reported tax positions, and have accounted for the unrecognized tax benefits associated with our tax positions.

We are a party to a tax matters agreement with CareFusion Corporation ("CareFusion"), under which CareFusion is obligated to indemnify us for certain tax exposures and transaction taxes prior to our fiscal 2010 spin-off of CareFusion. The indemnification receivable was $214 million and $210 million at December 31, 2014 and June 30, 2014, respectively, and is included in other assets in the condensed consolidated balance sheets.