Equity - Reclassifications out of accumulated other comprehensive income (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other (income), net	$ 47,521	$ 13,913
Tax benefit	(94,115)	(83,824)
Net income	339,041	375,899
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Amortization of prior service cost and initial net obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other (income), net	(1,483)	(1,641)
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Recognized actuarial loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other (income), net	(39,485)	(29,297)
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Retirement benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total before tax	(40,968)	(30,938)
Tax benefit	9,942	7,065
Net income	$ (31,026)	$ (23,873)