Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2015	Jun. 30, 2014
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	300,000.0	300,000.0
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	638,700,000.0	638,700,000.0
Common stock, shares outstanding	466,400,000.0	480,200,000.0
Treasury stock, shares	172,300,000.0	158,500,000.0
Cash and Cash Equivalents [Domain]
Assets related to the Company's outstanding commercial paper	$ 183.8
Short Term Investment
Assets related to the Company's outstanding commercial paper	$ 2,015.8