Fair Value - Schedule of Financial Assets and Liabilities Carried at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Jun. 30, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	$ 868	$ 884
Redeemable noncontrolling interests	(260)	(213)
Fair value measurements recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	868	884
Redeemable noncontrolling interests	(260)	(213)
Total	608	671
Fair value measurements recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	868	884
Redeemable noncontrolling interests	0	0
Total	868	884
Fair value measurements recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	0	0
Redeemable noncontrolling interests	0	0
Total	0	0
Fair value measurements recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	0	0
Redeemable noncontrolling interests	(260)	(213)
Total	$ (260)	$ (213)