SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Property, Plant and Equipment
Property, Plant and Equipment	$ 3,881		$ 3,881		$ 3,796
Less accumulated depreciation and amortization	(2,318)		(2,318)		(2,213)
Property, Plant and Equipment, net	1,563		1,563		1,583
Cost of assets related to projects in progress	267		267		186
Depreciation and amortization of property, plant and equipment	108	$ 100	210	$ 195
Land
Property, Plant and Equipment
Property, Plant and Equipment	28		28		15
Buildings and improvements
Property, Plant and Equipment
Property, Plant and Equipment	183		$ 183		187
Buildings and improvements | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			10 years
Buildings and improvements | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			40 years
Machinery and equipment
Property, Plant and Equipment
Property, Plant and Equipment	679		$ 679		680
Machinery and equipment | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			3 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			10 years
Computer hardware and software
Property, Plant and Equipment
Property, Plant and Equipment	1,082		$ 1,082		1,041
Computer hardware and software | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			4 years
Computer hardware and software | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			15 years
Furniture and fixtures
Property, Plant and Equipment
Property, Plant and Equipment	89		$ 89		84
Furniture and fixtures | Minimum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			5 years
Furniture and fixtures | Maximum
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life			10 years
Leasehold improvements
Property, Plant and Equipment
Property, Plant and Equipment	$ 1,820		$ 1,820		$ 1,789