Acquisitions and Divestitures (Narrative) (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Aug. 01, 2018	Jul. 29, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Cash paid for acquisitions, net of cash acquired					$ 38	$ 6,142
Goodwill			$ 8,330		8,330		$ 8,316
Patient Recovery Business
Business Acquisition [Line Items]
Cash paid for acquisitions, net of cash acquired		$ 6,100
Transaction and integration costs			17	$ 25	62	$ 85
Goodwill			3,300		3,300
naviHealth [Member]
Business Acquisition [Line Items]
Equity Method Investments	$ 358		$ 339		339
Noncontrolling Interest, Ownership Percentage by Parent	98.00%
Proceeds from Divestiture of Businesses	$ 737
Pre-Tax Gain on Divestiture					508
Redeemable Non Controlling Interest Divested	$ 12
Tax Expense From Divestiture of a Business					$ 130