Basis of Presentation and Summary of Significant Accounting Policies (Components of Property and Equipment) (Details) $ in Millions	12 Months Ended
	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.00%
Number of Operating Segments | segment	2
Total property and equipment, at cost	$ 4,627	$ 4,476
Accumulated depreciation and amortization	(2,748)	(2,680)
Property and equipment, net	1,879	1,796	$ 1,506
Land, building and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	1,637	1,735
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	2,860	2,608
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 130	$ 133
Maximum | Building and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	39 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Minimum | Building and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years