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.

No definition available.

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%