Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Reclassified to assets held for sale			$ 401
Goodwill, Written off Related to Sale of Business Unit			(401)
Other Intangible Assets Reclassified to Assets Held for Sales	$ 62
Amortization of intangible assets	148	$ 96	435	$ 291
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	139		139
Estimated annual amortization of intangible assets - Year Two	554		554
Estimated annual amortization of intangible assets - Year Three	523		523
Estimated annual amortization of intangible assets - Year Four	451		451
Estimated annual amortization of intangible assets - Year Five	$ 418		$ 418