Revenue recognition - Revenues by segment and by platform (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 3,479,294	$ 3,364,651
Diversified Industrial Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts	2,914,810
Diversified Industrial Segment | Motion Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	859,573
Diversified Industrial Segment | Flow and Process Control
Disaggregation of Revenue [Line Items]
Revenues from contracts	1,061,064
Diversified Industrial Segment | Filtration and Engineered Materials
Disaggregation of Revenue [Line Items]
Revenues from contracts	994,173
Aerospace Systems Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts	564,484	$ 531,186
Aerospace Systems Segment | Flight Control Actuation
Disaggregation of Revenue [Line Items]
Revenues from contracts	162,936
Aerospace Systems Segment | Fuel and Inerting
Disaggregation of Revenue [Line Items]
Revenues from contracts	144,046
Aerospace Systems Segment | Hydraulics
Disaggregation of Revenue [Line Items]
Revenues from contracts	102,497
Aerospace Systems Segment | Engines
Disaggregation of Revenue [Line Items]
Revenues from contracts	64,386
Aerospace Systems Segment | Fluid Conveyance
Disaggregation of Revenue [Line Items]
Revenues from contracts	70,204
Aerospace Systems Segment | Other
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 20,415