Equity - Changes in accumulated other comprehensive income (loss) in shareholders' equity by component (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 8,859,920	$ 8,413,670
Ending balance	9,793,165	8,972,859
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,149,071)	(865,865)
Other comprehensive income (loss) before reclassifications	146,173	(63,515)
Amounts reclassified from accumulated other comprehensive (loss)	0	7,647
Ending balance	(1,002,898)	(921,733)
Retirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(394,127)	(700,862)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive (loss)	8,397	91,335
Ending balance	(385,730)	(609,527)
Accumulated Other Comprehensive (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,543,198)	(1,566,727)
Other comprehensive income (loss) before reclassifications	146,173	(63,515)
Amounts reclassified from accumulated other comprehensive (loss)	8,397	98,982
Ending balance	$ (1,388,628)	$ (1,531,260)