Stockholders' Equity

6 Months Ended

Dec. 31, 2025

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Changes in stockholders' equity by component are as follows:

	Three Months Ended
	December 31, 2025
	Common Stock		Capital in Excess of Par Value		Retained Earnings		Treasury Stock		AOCI		Total
Balance at September 30, 2025	$	63.9	$	2,868.0	$	25,622.4	$	(21,449.8)	$	(730.7)	$	6,373.8
Net earnings	—		—		1,062.0		—		—		1,062.0
Other comprehensive income/(loss)	—		—		—		—		91.0		91.0
Stock-based compensation expense	—		66.3		—		—		—		66.3
Issuances relating to stock compensation plans	—		2.5		—		0.4		—		2.9
Treasury stock acquired (1.9 million shares repurchased)	—		—		—		(511.2)		—		(511.2)
Dividends declared ($1.70 per share)	—		—		(691.8)		—		—		(691.8)
Balance at December 31, 2025	$	63.9	$	2,936.8	$	25,992.6	$	(21,960.6)	$	(639.7)	$	6,393.0

	Three Months Ended
	December 31, 2024
	Common Stock		Capital in Excess of Par Value		Retained Earnings		Treasury Stock		AOCI		Total
Balance at September 30, 2024	$	63.9	$	2,528.6	$	24,001.2	$	(20,144.9)	$	(1,100.2)	$	5,348.6
Net earnings	—		—		963.2		—		—		963.2
Other comprehensive income/(loss)	—		—		—		—		(428.5)		(428.5)
Stock-based compensation expense	—		70.2		—		—		—		70.2
Issuances relating to stock compensation plans	—		20.8		—		6.5		—		27.3
Treasury stock acquired (0.9 million shares repurchased)	—		—		—		(273.9)		—		(273.9)
Dividends declared ($1.54 per share)	—		—		(628.8)		—		—		(628.8)
Balance at December 31, 2024	$	63.9	$	2,619.6	$	24,335.6	$	(20,412.3)	$	(1,528.7)	$	5,078.1

	Six Months Ended
	December 31, 2025
	Common Stock		Capital in Excess of Par Value		Retained Earnings		Treasury Stock		AOCI		Total
Balance at June 30, 2025	$	63.9	$	2,788.3	$	25,240.6	$	(21,021.4)	$	(883.4)	$	6,188.0
Net earnings	—		—		2,075.1		—		—		2,075.1
Other comprehensive income/(loss)	—		—		—		—		243.7		243.7
Stock-based compensation expense	—		123.6		—		—		—		123.6
Issuances relating to stock compensation plans	—		24.9		—		35.7		—		60.6
Treasury stock acquired (3.2 million shares repurchased)	—		—		—		(974.9)		—		(974.9)
Dividends declared ($3.24 per share)	—		—		(1,323.1)		—		—		(1,323.1)
Balance at December 31, 2025	$	63.9	$	2,936.8	$	25,992.6	$	(21,960.6)	$	(639.7)	$	6,393.0

	Six Months Ended
	December 31, 2024
	Common Stock		Capital in Excess of Par Value		Retained Earnings		Treasury Stock		AOCI		Total
Balance at June 30, 2024	$	63.9	$	2,406.9	$	23,622.2	$	(19,737.1)	$	(1,808.3)	$	4,547.6
Net earnings	—		—		1,919.5		—		—		1,919.5
Other comprehensive income/(loss)	—		—		—		—		279.6		279.6
Stock-based compensation expense	—		125.0		—		—		—		125.0
Issuances relating to stock compensation plans	—		87.7		—		56.2		—		143.9
Treasury stock acquired (2.4 million shares repurchased)	—		—		—		(731.4)		—		(731.4)
Dividends declared ($2.94 per share)	—		—		(1,206.1)		—		—		(1,206.1)
Balance at December 31, 2024	$	63.9	$	2,619.6	$	24,335.6	$	(20,412.3)	$	(1,528.7)	$	5,078.1