Business segment information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2025 USD ($) technology segment	Mar. 31, 2024 USD ($)
Segment Reporting [Abstract]
Number of reportable business segments | segment			2
Number of core technologies utilized | technology			8
Segment Reporting Information [Line Items]
Net sales	$ 4,960,349	$ 5,074,356	$ 14,606,926	$ 14,742,791
Operating income	1,108,313	1,032,768	3,158,533	2,975,670
Selling, general and administrative expenses	784,355	816,337	2,415,565	2,496,830
Interest expense	95,942	123,732	309,835	387,229
Other expense (income), net	17,557	(11,007)	(187,159)	(20,202)
Income before income taxes	994,814	920,043	3,035,857	2,608,643
Diversified Industrial
Segment Reporting Information [Line Items]
Net sales	3,388,759	3,665,643	10,097,723	10,798,644
Aerospace Systems
Segment Reporting Information [Line Items]
Net sales	1,571,590	1,408,713	4,509,203	3,944,147
Operating Segments
Segment Reporting Information [Line Items]
Net sales	4,960,349	5,074,356	14,606,926	14,742,791
Operating income	1,152,011	1,089,550	3,307,289	3,138,010
Operating Segments | Diversified Industrial
Segment Reporting Information [Line Items]
Net sales	3,388,759	3,665,643	10,097,723	10,798,644
Operating income	779,103	800,211	2,273,211	2,359,299
Operating Segments | Aerospace Systems
Segment Reporting Information [Line Items]
Net sales	1,571,590	1,408,713	4,509,203	3,944,147
Operating income	372,908	289,339	1,034,078	778,711
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	$ 43,698	$ 56,782	$ 148,756	$ 162,340