Additional Financial Information - Schedule of Other, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Other Income and Expenses [Line Items]
Remeasurement of equity securities	$ (1)	$ (2)	$ (11)	$ (16)
Total Other, net	(10)	14	(23)	(10)
Nonoperating Income (Expense)
Other Income and Expenses [Line Items]
Remeasurement of equity securities	(1)	(2)	(11)	(16)
Dividends received from equity security investments	1	2	4	6
Gain on remeasurement of previously-held interest	0	0	4	0
Other	$ (10)	$ 14	$ (20)	$ 0