Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2016	Jun. 30, 2016
Statement of Financial Position [Abstract]
Property, plant and equipment, accumulated depreciation and amortization	$ 1,944	$ 1,911
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	158,741,461	158,741,461
Common stock, shares outstanding	128,707,796	129,355,263
Treasury stock, shares	30,033,665	29,386,198