Equity - Changes in accumulated other comprehensive income (loss) in shareholders' equity by component (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 8,859,920	$ 8,413,670	[1],[2]
Ending balance	9,334,476	8,768,280	[1]
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	53,768	(39,247)
Amounts reclassified from accumulated other comprehensive (loss)	0	0
Ending balance	(1,095,303)	(905,112)
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)	9,761	60,881
Ending balance	(384,366)	(639,981)
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	53,768	(39,247)
Amounts reclassified from accumulated other comprehensive (loss)	9,761	60,881
Ending balance	$ (1,479,669)	$ (1,545,093)

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

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