Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 961,186	$ 726,734	$ 2,608,363	$ 2,059,863
Less: Noncontrolling interests in subsidiaries' earnings	320	160	535	611
Net income attributable to common shareholders	960,866	726,574	2,607,828	2,059,252
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	167,432	(168,919)	62,826	(119,216)
Retirement benefits plan activity	3,336	1,369	10,197	4,098
Other comprehensive income (loss)	170,768	(167,550)	73,023	(115,118)
Less: Other comprehensive income (loss) for noncontrolling interests	23	(392)	(605)	384
Other comprehensive income (loss) attributable to common shareholders	170,745	(167,158)	73,628	(115,502)
Total comprehensive income attributable to common shareholders	$ 1,131,611	$ 559,416	$ 2,681,456	$ 1,943,750