Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	300,000	300,000
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	638,700,000
Common stock, shares outstanding	481,800,000	480,200,000
Treasury stock, shares	156,900,000	158,500,000
Short-term Investments [Member]
Assets related to the Company's outstanding commercial paper	$ 1,957.8	$ 2,015.8
Cash and Cash Equivalents [Domain]
Assets related to the Company's outstanding commercial paper		$ 183.8