Revenue recognition - Revenue by geographic region (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022		Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 5,061,665	$ 4,086,387	[1]	$ 13,969,251	$ 11,673,776	[1]
North America
Disaggregation of Revenue [Line Items]
Revenues from contracts	3,364,157	2,645,106		9,278,815	7,451,153
Europe
Disaggregation of Revenue [Line Items]
Revenues from contracts	1,054,157	829,392		2,750,159	2,344,533
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues from contracts	590,017	560,250		1,777,550	1,735,574
Latin America
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 53,334	$ 51,639		$ 162,727	$ 142,516

[1] *Prior period amounts have been reclassified to reflect the income statement reclassification as described in Note 1.