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Divestitures and Acquisitions (Narrative) (Details) - USD ($) $ in Millions |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 29, 2017 | Aug. 31, 2018 | Jun. 30, 2020 | Sep. 30, 2018 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018 | May 01, 2020 | Aug. 01, 2018
Business Acquisition |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  | $ 0 | $ 82 | $ 6,142 |  |
Pre-Tax Gain on Divestiture |  |  |  |  | 508 |  |  |  |
Gain on Sale of Investments |  |  |  |  | 579 | 0 | 0 |  |
Income (Loss) from Equity Method Investments |  |  |  |  | 2 | 10 |  |  |
Patient Recovery Business [Member] |  |  |  |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | $ 6,100 |  |  |  |  |  |  |  |
Transaction and integration costs |  |  |  |  | 7 | 75 | 109 |  |
China Pharmaceutical and Medical Products Distribution Business [Member] |  |  |  |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  |  | 861 |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  |  |  |  | $ 41 |  |
naviHealth [Member] |  |  |  |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  | $ 737 |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  | 40.00% |
Partnership Indirect Ownership |  |  |  |  |  |  |  | 100.00% |
Pre-Tax Gain on Divestiture |  |  |  | $ 508 |  | $ 508 |  |  |
Equity Method Investments |  |  | $ 334 |  | $ 334 |  |  |  | $ 358
Redeemable Noncontrolling Interest, Equity, Carrying Amount |  |  |  |  |  |  |  |  | $ 12
Provisional tax benefit related to transaction |  | $ 130 |  |  |  |  |  |  |
Gain on Sale of Investments |  |  | $ 579 |  |  |  |  |  |
Navi Ownership Interest Divested [Member] | naviHealth [Member] |  |  |  |  |  |  |  |  |
Business Acquisition |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  |  |  |  | 98.00%

X
- Definition Costs incurred during the initial evaluation of a potential acquisition that primarily relate to costs to analyze, negotiate, and consummate the transaction, as well as due diligence activities. Also includes costs related to activities required to combine the operations of an acquired enterprise into our operations and to stand-up the systems and processes needed to support a global footprint. + References No definition available. + Details
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