Revenue recognition - Revenues by segment and by platform (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 3,702,432	$ 3,687,518	$ 10,534,917	$ 10,638,857
Diversified Industrial Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts	2,957,851	3,035,420	8,424,242	8,805,968
Diversified Industrial Segment | Motion Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	778,840	899,948	2,297,961	2,615,878
Diversified Industrial Segment | Flow and Process Control
Disaggregation of Revenue [Line Items]
Revenues from contracts	1,015,430	1,105,176	2,969,033	3,181,440
Diversified Industrial Segment | Filtration and Engineered Materials
Disaggregation of Revenue [Line Items]
Revenues from contracts	1,163,581	1,030,296	3,157,248	3,008,650
Aerospace Systems Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts	744,581	652,098	2,110,675	1,832,889
Aerospace Systems Segment | Flight Control Actuation
Disaggregation of Revenue [Line Items]
Revenues from contracts	175,871	191,664	529,553	544,270
Aerospace Systems Segment | Fuel, Inerting and Engine Motion Control
Disaggregation of Revenue [Line Items]
Revenues from contracts	159,837	165,642	471,525	466,950
Aerospace Systems Segment | Hydraulics
Disaggregation of Revenue [Line Items]
Revenues from contracts	114,763	123,416	333,523	334,806
Aerospace Systems Segment | Engine Components
Disaggregation of Revenue [Line Items]
Revenues from contracts	181,173	71,779	454,572	207,812
Aerospace Systems Segment | Airframe and Engine Fluid Conveyance
Disaggregation of Revenue [Line Items]
Revenues from contracts	83,555	79,299	247,356	218,371
Aerospace Systems Segment | Other
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 29,382	$ 20,298	$ 74,146	$ 60,680