Goodwill and intangible assets - Changes in carrying amount of goodwill (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 10,507,433
Divestitures	(89,549)
Foreign currency translation	44,062
Ending balance	10,461,946
Diversified Industrial Segment
Goodwill [Roll Forward]
Beginning balance	7,607,429
Divestitures	(89,549)
Foreign currency translation	33,478
Ending balance	7,551,358
Aerospace Systems Segment
Goodwill [Roll Forward]
Beginning balance	2,900,004
Divestitures	0
Foreign currency translation	10,584
Ending balance	$ 2,910,588