Earnings per Share (“EPS”) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net earnings	$ 859.4	$ 779.0
Basic, Weighted average shares (shares)	411,700,000	414,600,000
Effect of Employee Stock Option Shares (shares)	900,000	1,100,000
Effect of Employee Restricted Stock Shares (shares)	1,000,000.0	1,200,000
Diluted, Weighted average shares (shares)	413,600,000	416,900,000
Basic, EPS (in US$ per share)	$ 2.09	$ 1.88
Diluted, EPS (in US$ per share)	$ 2.08	$ 1.87
Options excluded from the calculation of diluted earnings per share (shares)	0	300,000