Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Treasury stock acquired (in shares)	1.2	1.2	3.3	3.5
Dividends declared (in USD per share)	$ 1.40	$ 1.25	$ 4.05	$ 3.54
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 4,319.6	$ 2,986.7	$ 3,509.1	$ 3,225.3
Net earnings	1,184.9	1,043.1	2,922.7	2,635.3
Other comprehensive income	(106.7)	323.1	453.9	(134.1)
Stock-based compensation expense	48.6	61.7	170.4	158.7
Issuances relating to stock compensation plans	57.5	63.6	146.0	173.1
Treasury stock acquired	(301.3)	(266.1)	(900.8)	(890.7)
Dividends declared	(575.9)	(518.3)	(1,674.6)	(1,473.8)
Ending balance	4,626.7	3,693.8	4,626.7	3,693.8
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	63.9	63.9	63.9	63.9
Ending balance	63.9	63.9	63.9	63.9
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2,262.9	1,954.2	2,102.3	1,794.2
Stock-based compensation expense	48.6	61.7	170.4	158.7
Issuances relating to stock compensation plans	42.5	46.0	81.3	109.0
Ending balance	2,354.0	2,061.9	2,354.0	2,061.9
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	22,757.1	21,333.0	22,118.0	20,696.3
Net earnings	1,184.9	1,043.1	2,922.7	2,635.3
Dividends declared	(575.9)	(518.3)	(1,674.6)	(1,473.8)
Ending balance	23,366.1	21,857.8	23,366.1	21,857.8
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(19,019.1)	(17,913.5)	(18,469.3)	(17,335.4)
Issuances relating to stock compensation plans	15.0	17.6	64.7	64.1
Treasury stock acquired	(301.3)	(266.1)	(900.8)	(890.7)
Ending balance	(19,305.4)	(18,162.0)	(19,305.4)	(18,162.0)
AOCI
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,745.2)	(2,450.9)	(2,305.8)	(1,993.7)
Other comprehensive income	(106.7)	323.1	453.9	(134.1)
Ending balance	$ (1,851.9)	$ (2,127.8)	$ (1,851.9)	$ (2,127.8)