Fair Value - Schedule of Financial Assets and Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	$ 797	$ 884
Redeemable noncontrolling interests	(242)	(213)
Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	797	884
Redeemable noncontrolling interests	(242)	(213)
Total	555	671
Fair Value, Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in equity securities	797	884
Redeemable noncontrolling interests	0	0
Total	797	884
Fair Value, 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, 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	(242)	(213)
Total	$ (242)	$ (213)