Fair Value Measurements (Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jun. 30, 2017
Assets:
Total available-for-sale securities		$ 65
Recurring
Assets:
Cash equivalents	$ 548	739
Forward contracts	(58)	(21)
Total available-for-sale securities	0	65
Other investments	115	116
Liabilities:
Contingent Consideration	(14)	(32)
Recurring | Level 1
Assets:
Cash equivalents	548	739
Forward contracts	0	0
Total available-for-sale securities	0	0
Other investments	115	116
Liabilities:
Contingent Consideration	0	0
Recurring | Level 2
Assets:
Cash equivalents	0	0
Forward contracts	(58)	(21)
Total available-for-sale securities	0	65
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	(14)	$ (32)
Disposal Group, Held-for-sale, Not Discontinued Operations | China Business
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale	2,216
Liabilities related to assets held for sale	$ 1,339