Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Goodwill and Intangible Assets
Goodwill impairment	$ 829	$ 829	$ 829
Amortization of intangible assets	191	$ 188	$ 121
Estimated annual amortization of intangible assets - 2016	194
Estimated annual amortization of intangible assets - 2017	184
Estimated annual amortization of intangible assets - 2018	136
Estimated annual amortization of intangible assets - 2019	88
Estimated annual amortization of intangible assets - 2020	$ 79
Minimum
Goodwill and Intangible Assets
Useful life of finite-lived intangible assets (in years)	1 year
Maximum
Goodwill and Intangible Assets
Useful life of finite-lived intangible assets (in years)	20 years