Equity - Changes in accumulated other comprehensive income (loss) in shareholders' equity by component (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 12,080,893	$ 10,338,279
Ending balance	12,901,349	10,574,950
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,129,997)	(962,044)
Other comprehensive income before reclassifications	344,126	(222,893)
Amounts reclassified from accumulated other comprehensive (loss)	0	0
Ending balance	(785,871)	(1,184,937)
Retirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(308,015)	(330,828)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive (loss)	3,451	818
Ending balance	(304,564)	(330,010)
Accumulated Other Comprehensive (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,438,012)	(1,292,872)
Other comprehensive income before reclassifications	344,126	(222,893)
Amounts reclassified from accumulated other comprehensive (loss)	3,451	818
Ending balance	$ (1,090,435)	$ (1,514,947)