Goodwill and intangible assets - Changes in carrying amount of goodwill (Details) $ in Thousands	6 Months Ended
	Dec. 31, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 10,628,594
Acquisition	10,891
Divestitures	(25,387)
Foreign currency translation	57,799
Ending balance	10,671,897
Diversified Industrial Segment
Goodwill [Roll Forward]
Beginning balance	7,682,755
Acquisition	1,113
Divestitures	(25,387)
Foreign currency translation	41,165
Ending balance	7,699,646
Aerospace Systems Segment
Goodwill [Roll Forward]
Beginning balance	2,945,839
Acquisition	9,778
Divestitures	0
Foreign currency translation	16,634
Ending balance	$ 2,972,251