Fair Value Measurements (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Assets:
Total available-for-sale securities	$ 200	$ 193
Recurring
Assets:
Cash equivalents	516	1,809
Forward contracts	19	5
Total available-for-sale securities	200	193
Other investments	103	111
Liabilities:
Contingent Consideration	(19)	(53)
Recurring | Level 1
Assets:
Cash equivalents	516	1,809
Forward contracts	0	0
Total available-for-sale securities	0	0
Other investments	103	111
Liabilities:
Contingent Consideration	0	0
Recurring | Level 2
Assets:
Cash equivalents	0	0
Forward contracts	19	5
Total available-for-sale securities	200	193
Other investments	0	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	$ (19)	$ (53)