Summary of Significant Accounting Policies	9 Months Ended
Mar. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation Our condensed consolidated financial statements include the accounts of all majority-owned and controlled subsidiaries, and all significant intercompany transactions and amounts have been eliminated. References to "we," "our" and similar pronouns in this Quarterly Report on Form 10-Q refer to Cardinal Health, Inc. and its majority-owned and controlled subsidiaries unless the context requires otherwise. The results of businesses acquired or disposed of are included in the condensed consolidated financial statements from the effective date of the acquisition or up to the date of disposal, respectively. Our condensed consolidated financial statements have been prepared in accordance with the U.S. Securities and Exchange Commission ("SEC") instructions to Quarterly Reports on Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States ("GAAP") for interim financial reporting. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in the condensed consolidated financial statements and accompanying notes. Actual amounts may differ from these estimated amounts. In addition, operating results presented for this fiscal 2014 interim period are not necessarily indicative of the results that may be expected for the full fiscal year ending June 30, 2014. These condensed consolidated financial statements are unaudited and are presented pursuant to the rules and regulations of the SEC. Accordingly, the condensed consolidated financial statements included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 (this "Form 10-Q") should be read in conjunction with the audited consolidated financial statements and related notes contained in our Annual Report on Form 10-K for the fiscal year ended June 30, 2013 (the "2013 Form 10-K"). In our opinion, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included. Except as disclosed elsewhere in this Form 10-Q, all such adjustments are of a normal and recurring nature. Walgreens Contract Our pharmaceutical distribution contract with Walgreen Co. ("Walgreens") expired on August 31, 2013. Sales to Walgreens generated approximately 20 percent of our consolidated revenue for fiscal 2013. CVS Joint Venture In December 2013, we announced an agreement with CVS Caremark Corporation (“CVS”) to form Red Oak Sourcing, LLC, a U.S.-based generic sourcing entity (“Sourcing JV”). Both companies are contributing their sourcing and supply chain expertise to the 50/50 joint venture and are committing to source generic pharmaceuticals through it. The Sourcing JV, which we expect to be operational as soon as July 1, 2014, will have an initial term of 10 years. Under this arrangement, the Sourcing JV will negotiate generic supply contracts on behalf of both companies; however, it will not own products or hold inventory on behalf of either company. The arrangement includes a quarterly payment of $25 million over the term that we will pay to CVS. No physical assets will be contributed by either company to the Sourcing JV, and minimal funding will be provided to capitalize the entity. The venture is subject to the completion of final documentation and customary closing conditions. Sale of Investments During the three months ended March 31, 2014, we sold our minority equity interests in two investments for proceeds of $47 million, which resulted in a pre-tax gain of $32 million included in other income, net in the condensed consolidated statements of earnings. Recent Financial Accounting Standards In April 2014, the Financial Accounting Standards Board ("FASB") issued amended accounting guidance related to the criteria for determining which disposals can be presented as discontinued operations and the related disclosure requirements. This amendment will be effective for us in the first quarter of fiscal 2016, with early adoption permitted. We will adopt this guidance on a prospective basis, and we do not expect the adoption to impact our financial position or results of operations. In February 2013, the FASB issued amended accounting guidance related to reclassifications out of accumulated other comprehensive income ("AOCI"). An entity is required to present, either parenthetically on the face of the statement where net income is presented or in the notes, the significant amounts, by component, reclassified out of AOCI by the respective line items of net income and to report changes in its AOCI balances by component. We adopted this amended guidance on a prospective basis in the first quarter of fiscal 2014 and have elected to report reclassifications out of AOCI in Note 10 in this Form 10-Q. The adoption of this guidance did not impact our financial position or results of operations. In January 2013, the FASB issued updated guidance to limit the scope of the balance sheet offsetting disclosures to derivatives, repurchase agreements and securities lending transactions to the extent they are offset in the financial statements or subject to an enforceable master netting arrangement or similar arrangement. We adopted this amended guidance on a retrospective basis in the first quarter of fiscal 2014. The adoption of this guidance did not impact our financial position or results of operations. See Note 8 for additional information regarding fair value measurements. In July 2012, the FASB issued amended accounting guidance related to testing indefinite-lived intangible assets for impairment. Under this guidance, a company is no longer required to calculate the fair value of an indefinite-lived intangible asset unless the company determines, based on a qualitative assessment, that it is more likely than not that its estimated fair value is less than its carrying amount. We adopted this amended guidance in the first quarter of fiscal 2014. The adoption of this guidance did not impact our financial position or results of operations.

Summary of Significant Accounting Policies

Basis of Presentation

Our condensed consolidated financial statements include the accounts of all majority-owned and controlled subsidiaries, and all significant intercompany transactions and amounts have been eliminated. References to "we," "our" and similar pronouns in this Quarterly Report on Form 10-Q refer to Cardinal Health, Inc. and its majority-owned and controlled subsidiaries unless the context requires otherwise. The results of businesses acquired or disposed of are included in the condensed consolidated financial statements from the effective date of the acquisition or up to the date of disposal, respectively.

Our condensed consolidated financial statements have been prepared in accordance with the U.S. Securities and Exchange Commission ("SEC") instructions to Quarterly Reports on Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States ("GAAP") for interim financial reporting. The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in the condensed consolidated financial statements and accompanying notes. Actual amounts may differ from these estimated amounts. In addition, operating results presented for this fiscal 2014 interim period are not necessarily indicative of the results that may be expected for the full fiscal year ending June 30, 2014.

These condensed consolidated financial statements are unaudited and are presented pursuant to the rules and regulations of the SEC. Accordingly, the condensed consolidated financial statements included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 (this "Form 10-Q") should be read in conjunction with the audited consolidated financial statements and related notes contained in our Annual Report on Form 10-K for the fiscal year ended June 30, 2013 (the "2013 Form 10-K"). In our opinion, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included. Except as disclosed elsewhere in this Form 10-Q, all such adjustments are of a normal and recurring nature.

Walgreens Contract

Our pharmaceutical distribution contract with Walgreen Co. ("Walgreens") expired on August 31, 2013. Sales to Walgreens generated approximately 20 percent of our consolidated revenue for fiscal 2013.

CVS Joint Venture

In December 2013, we announced an agreement with CVS Caremark Corporation (“CVS”) to form Red Oak Sourcing, LLC, a U.S.-based generic sourcing entity (“Sourcing JV”). Both companies are contributing their sourcing and supply chain expertise to the 50/50 joint venture and are committing to source generic pharmaceuticals through it. The Sourcing JV, which we expect to be operational as soon as July 1, 2014, will have an initial term of 10 years. Under this arrangement, the Sourcing JV will negotiate generic supply contracts on behalf of both companies; however, it will not own products or hold inventory on behalf of either company. The arrangement includes a quarterly payment of $25 million over the term that we will pay to CVS. No physical assets will be contributed by either company to the Sourcing JV, and minimal funding will be provided to capitalize the entity. The venture is subject to the completion of final documentation and customary closing conditions.

Sale of Investments

During the three months ended March 31, 2014, we sold our minority equity interests in two investments for proceeds of $47 million, which resulted in a pre-tax gain of $32 million included in other income, net in the condensed consolidated statements of earnings.

Recent Financial Accounting Standards

In April 2014, the Financial Accounting Standards Board ("FASB") issued amended accounting guidance related to the criteria for determining which disposals can be presented as discontinued operations and the related disclosure requirements. This amendment will be effective for us in the first quarter of fiscal 2016, with early adoption permitted. We will adopt this guidance on a prospective basis, and we do not expect the adoption to impact our financial position or results of operations.

In February 2013, the FASB issued amended accounting guidance related to reclassifications out of accumulated other comprehensive income ("AOCI"). An entity is required to present, either parenthetically on the face of the statement where net income is presented or in the notes, the significant amounts, by component, reclassified out of AOCI by the respective line items of net income and to report changes in its AOCI balances by component. We adopted this amended guidance on a prospective basis in the first quarter of fiscal 2014 and have elected to report reclassifications out of AOCI in Note 10 in this Form 10-Q. The adoption of this guidance did not impact our financial position or results of operations.

In January 2013, the FASB issued updated guidance to limit the scope of the balance sheet offsetting disclosures to derivatives, repurchase agreements and securities lending transactions to the extent they are offset in the financial statements or subject to an enforceable master netting arrangement or similar arrangement. We adopted this amended guidance on a retrospective basis in the first quarter of fiscal 2014. The adoption of this guidance did not impact our financial position or results of operations. See Note 8 for additional information regarding fair value measurements.

In July 2012, the FASB issued amended accounting guidance related to testing indefinite-lived intangible assets for impairment. Under this guidance, a company is no longer required to calculate the fair value of an indefinite-lived intangible asset unless the company determines, based on a qualitative assessment, that it is more likely than not that its estimated fair value is less than its carrying amount. We adopted this amended guidance in the first quarter of fiscal 2014. The adoption of this guidance did not impact our financial position or results of operations.