Income Taxes	6 Months Ended
Dec. 31, 2015
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, 2015 and 2014, the effective tax rate was 37.3 percent and 36.0 percent, respectively. During the six months ended December 31, 2015 and 2014, the effective tax rate was 34.7 percent and 37.4 percent, respectively. The effective tax rate during the six months ended December 31, 2015 was impacted by net favorable discrete items of $28 million. At December 31, 2015 and June 30, 2015, we had $530 million and $542 million of unrecognized tax benefits, respectively. The December 31, 2015 and June 30, 2015 balances include $348 million and $357 million of unrecognized tax benefits, respectively, that if recognized, would have an impact on the effective tax rate. At December 31, 2015 and June 30, 2015, we had $154 million and $169 million, respectively, accrued for the payment of interest and penalties related to unrecognized tax benefits, which we recognize in the provision for income taxes in the condensed consolidated statements of earnings. 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 or other taxing authorities, possible settlement of audit issues, reassessment of existing unrecognized tax benefits or the expiration of 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 zero to $190 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. With few exceptions, we are subject to audit by taxing authorities for fiscal years 2006 through the current fiscal year. We are a party to a tax matters agreement with CareFusion Corporation ("CareFusion"), which has been acquired by Becton, Dickinson and Company. Under the tax matters agreement, 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 $222 million and $219 million at December 31, 2015, and June 30, 2015, 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, 2015 and 2014, the effective tax rate was 37.3 percent and 36.0 percent, respectively.

During the six months ended December 31, 2015 and 2014, the effective tax rate was 34.7 percent and 37.4 percent, respectively. The effective tax rate during the six months ended December 31, 2015 was impacted by net favorable discrete items of $28 million.

At December 31, 2015 and June 30, 2015, we had $530 million and $542 million of unrecognized tax benefits, respectively. The December 31, 2015 and June 30, 2015 balances include $348 million and $357 million of unrecognized tax benefits, respectively, that if recognized, would have an impact on the effective tax rate.

At December 31, 2015 and June 30, 2015, we had $154 million and $169 million, respectively, accrued for the payment of interest and penalties related to unrecognized tax benefits, which we recognize in the provision for income taxes in the condensed consolidated statements of earnings. 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 or other taxing authorities, possible settlement of audit issues, reassessment of existing unrecognized tax benefits or the expiration of 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 zero to $190 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. With few exceptions, we are subject to audit by taxing authorities for fiscal years 2006 through the current fiscal year.

We are a party to a tax matters agreement with CareFusion Corporation ("CareFusion"), which has been acquired by Becton, Dickinson and Company. Under the tax matters agreement, 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 $222 million and $219 million at December 31, 2015, and June 30, 2015, respectively, and is included in other assets in the condensed consolidated balance sheets.