Additional Financial Information - Schedule of Interest Expense, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense	$ (401)	$ (403)	$ (405)
Interest income	127	176	189
Total interest expense, net	$ (274)	$ (227)	$ (216)