Fair Value Measurements (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Jun. 30, 2016
Assets:
Total available-for-sale securities		$ 200
Recurring
Assets:
Cash equivalents	$ 6	516
Forward contracts	13	19
Total available-for-sale securities	197	200
Other investments	114	103
Liabilities:
Contingent Consideration	(38)	(19)
Recurring | Level 1
Assets:
Cash equivalents	6	516
Forward contracts	0	0
Total available-for-sale securities	0	0
Other investments	111	103
Liabilities:
Contingent Consideration	0	0
Recurring | Level 2
Assets:
Cash equivalents	0	0
Forward contracts	13	19
Total available-for-sale securities	197	200
Other investments	3	0
Liabilities:
Contingent Consideration	0	0
Recurring | Level 3
Assets:
Cash equivalents	0	0
Forward contracts	0	0
Total available-for-sale securities	0	0
Other investments	0	0
Liabilities:
Contingent Consideration	$ (38)	$ (19)