Additional Financial Information - Schedule of Interest Expense, Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense	$ (117)	$ (119)	$ (219)	$ (210)
Interest income	37	47	89	96
Total interest expense, net	$ (80)	$ (72)	$ (130)	$ (114)