Acquisitions (Narrative) (Details)				3 Months Ended	12 Months Ended
	Jul. 02, 2015 USD ($)	Mar. 01, 2015 USD ($) country	May. 09, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)
Business Acquisition
Cash paid for acquisitions, net of cash acquired				$ 193,000,000	$ 503,000,000	$ 519,000,000	$ 2,239,000,000
Potential maximum contingent payments for acquisition				$ 30,000,000	30,000,000
Goodwill acquired					220,000,000	$ 284,000,000
Fair Value, Inputs, Level 3
Business Acquisition
Fair value discount rate							10.00%
Harvard Drug Group | Subsequent Event
Business Acquisition
Cash paid for acquisitions, net of cash acquired	$ 1,100,000,000
Cordis
Business Acquisition
Binding offer payment to acquire business		$ 1,900,000,000
Number of countries in which the entity operates | country		50
Principal countries | country		20
Transaction and integration costs					44,000,000
AccessClosure
Business Acquisition
Cash paid for acquisitions, net of cash acquired			$ 320,000,000
Goodwill acquired					152,000,000
Finite-lived intangible assets acquired					$ 133,000,000
Useful life of finite-lived intangible assets (in years)					9 years
AccessClosure | Fair Value, Inputs, Level 3
Business Acquisition
Fair value discount rate					10.00%