Equity - Reclassifications out of accumulated other comprehensive income (loss) in shareholders' equity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other (income), net	$ 13,460	$ 12,643	$ 122,066	$ 73,713
Income before income taxes	597,352	454,157	1,589,159	1,142,059
Tax benefit	(125,619)	(86,788)	(348,212)	(231,051)
Net income	471,733	367,369	1,240,947	911,008
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	(1,304)	(1,385)	(3,542)	(4,152)
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Recognized actuarial loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other (income), net	(51,212)	(41,154)	(156,240)	(123,342)
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Retirement benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before income taxes	(52,516)	(42,539)	(159,782)	(127,494)
Tax benefit	12,793	10,414	38,923	30,927
Net income	$ (39,723)	$ (32,125)	$ (120,859)	$ (96,567)