Equity - Reclassifications out of accumulated other comprehensive income (loss) in shareholders' equity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	$ 65,406	$ 55,866	$ 228,872	$ 116,131
Total before tax	920,043	756,381	2,608,643	1,776,469
Tax benefit	(193,309)	(165,421)	(548,780)	(402,011)
Net income	726,734	590,960	2,059,863	1,374,458
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Amortization of prior service cost and initial net obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	(319)	(227)	(955)	(679)
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Recognized actuarial loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	(1,555)	1,057	(4,656)	(11,422)
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Retirement benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total before tax	(1,874)	1,417	(5,611)	(11,514)
Tax benefit	505	(53)	1,513	3,117
Net income	(1,369)	$ 1,364	$ (4,098)	(8,397)
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Divestiture activity
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	$ 587			$ 587