Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 904	$ 962	$ 2,557	$ 2,609
Less: Noncontrolling interest in subsidiaries' earnings	0	1	0	1
Net income attributable to common shareholders	904	961	2,557	2,608
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment and other	(82)	168	(108)	63
Retirement benefits plan activity	5	3	11	10
Other comprehensive income (loss)	(77)	171	(97)	73
Less: Other comprehensive loss for noncontrolling interests	0	0	0	(1)
Other comprehensive income (loss) attributable to common shareholders	(77)	171	(97)	74
Total comprehensive income attributable to common shareholders	$ 827	$ 1,132	$ 2,460	$ 2,682