Goodwill and Other Intangible Assets (Schedule of Goodwill by Reportable Segment) (Details) $ in Millions	3 Months Ended
	Sep. 30, 2017 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 7,221
Goodwill acquired, net of purchase price adjustments	3,157
Foreign currency translation adjustments and other	41
Ending balance	10,419
Pharmaceutical
Goodwill [Roll Forward]
Beginning balance	2,939
Goodwill acquired, net of purchase price adjustments	1
Foreign currency translation adjustments and other	11
Ending balance	2,951
Medical
Goodwill [Roll Forward]
Beginning balance	4,282
Goodwill acquired, net of purchase price adjustments	3,156
Foreign currency translation adjustments and other	30
Ending balance	$ 7,468