Equity - Schedule of Changes in Accumulated Other Comprehensive Loss in Shareholders' Equity by Component (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 13,691	$ 12,081
Reclassified from accumulated other comprehensive loss:
Other comprehensive (loss) income	(41)	348
Ending balance	13,786	12,901
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(883)	(1,438)
Reclassified from accumulated other comprehensive loss:
Other comprehensive (loss) income	(41)	348
Ending balance	(924)	(1,090)
Foreign Currency Translation Adjustment and Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(717)	(1,130)
Other comprehensive income (loss) before reclassifications	(49)	339
Income tax	4	6
Other comprehensive income (loss), net of tax	(45)	345
Reclassified from accumulated other comprehensive loss:
Ending balance	(762)	(785)
Retirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(166)	(308)
Other comprehensive income (loss) before reclassifications	2	(1)
Reclassified from accumulated other comprehensive loss:
Amortization of net actuarial loss and other	3	5
Tax benefit	(1)	(1)
Other comprehensive (loss) income	4	3
Ending balance	$ (162)	$ (305)