Stockholder's Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Beginning balance	$ 4,678.8	$ 4,981.8	$ 4,735.9	$ 4,984.1
NET EARNINGS	558.2	670.4	1,063.6	1,083.0
Other comprehensive income	125.1	(89.9)	64.8	(45.0)
Stock-based compensation expense	35.0	31.0	69.7	66.2
Issuances relating to stock compensation plans	19.3	9.6	75.1	62.1
Treasury stock acquired	(312.3)	(162.5)	(594.1)	(452.6)
Dividends declared	(340.2)	(279.9)	(651.1)	(537.3)
Ending balance	$ 4,763.9	$ 5,160.5	$ 4,763.9	$ 5,160.5
Treasury Stock, Shares, Acquired	2.2	1.4	3.8	3.6
Common Stock, Dividends, Per Share, Declared	$ 0.79	$ 0.63	$ 1.48	$ 1.2
Common Stock [Member]
Beginning balance	$ 63.9	$ 63.9	$ 63.9	$ 63.9
NET EARNINGS	0.0	0.0	0.0	0.0
Other comprehensive income	0.0	0.0	0.0	0.0
Stock-based compensation expense	0.0	0.0	0.0	0.0
Issuances relating to stock compensation plans	0.0	0.0	0.0	0.0
Treasury stock acquired	0.0	0.0	0.0	0.0
Dividends declared	0.0	0.0	0.0	0.0
Ending balance	63.9	63.9	63.9	63.9
Additional Paid-in Capital [Member]
Beginning balance	1,035.1	869.8	1,014.8	867.8
NET EARNINGS	0.0	0.0	0.0	0.0
Other comprehensive income	0.0	0.0	0.0	0.0
Stock-based compensation expense	35.0	31.0	69.7	66.2
Issuances relating to stock compensation plans	6.0	2.7	(8.4)	(30.5)
Treasury stock acquired	0.0	0.0	0.0	0.0
Dividends declared	0.0	0.0	0.0	0.0
Ending balance	1,076.1	903.5	1,076.1	903.5
Retained Earnings [Member]
Beginning balance	16,741.1	15,894.5	16,546.6	15,739.3
NET EARNINGS	558.2	670.4	1,063.6	1,083.0
Other comprehensive income	0.0	0.0	0.0	0.0
Stock-based compensation expense	0.0	0.0	0.0	0.0
Issuances relating to stock compensation plans	0.0	0.0	0.0	0.0
Treasury stock acquired	0.0	0.0	0.0	0.0
Dividends declared	(340.2)	(279.9)	(651.1)	(537.3)
Ending balance	16,959.1	16,285.0	16,959.1	16,285.0
Treasury Stock [Member]
Beginning balance	(12,421.2)	(11,508.1)	(12,209.6)	(11,303.7)
NET EARNINGS	0.0	0.0	0.0	0.0
Other comprehensive income	0.0	0.0	0.0	0.0
Stock-based compensation expense	0.0	0.0	0.0	0.0
Issuances relating to stock compensation plans	13.3	6.9	83.5	92.6
Treasury stock acquired	(312.3)	(162.5)	(594.1)	(452.6)
Dividends declared	0.0	0.0	0.0	0.0
Ending balance	(12,720.2)	(11,663.7)	(12,720.2)	(11,663.7)
AOCI Attributable to Parent [Member]
Beginning balance	(740.1)	(338.3)	(679.8)	(383.2)
NET EARNINGS	0.0	0.0	0.0	0.0
Other comprehensive income	125.1	(89.9)	64.8	(45.0)
Stock-based compensation expense	0.0	0.0	0.0	0.0
Issuances relating to stock compensation plans	0.0	0.0	0.0	0.0
Treasury stock acquired	0.0	0.0	0.0	0.0
Dividends declared	0.0	0.0	0.0	0.0
Ending balance	$ (615.0)	$ (428.2)	$ (615.0)	$ (428.2)