Goodwill and intangible assets - Changes in carrying amount of goodwill (Details) $ in Thousands	6 Months Ended
Dec. 31, 2020 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 7,869,935
Acquisitions	3,738
Foreign currency translation and other	227,343
Ending balance	8,101,016
Diversified Industrial Segment
Goodwill [Roll Forward]
Beginning balance	7,267,573
Acquisitions	3,738
Foreign currency translation and other	227,317
Ending balance	7,498,628
Aerospace Systems Segment
Goodwill [Roll Forward]
Beginning balance	602,362
Acquisitions	0
Foreign currency translation and other	26
Ending balance	$ 602,388

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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