Additional Financial Information - Supplemental Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Supplemental cash flows information
Cash paid for interest	$ (345)	$ (383)	$ (390)
Cash paid for income taxes	(245)	(209)	(225)
Supplemental information on acquisitions
Fair value of assets acquired, excluding cash	0	348	49
Cash acquired	0	9	0
Liabilities assumed	0	(47)	2
Redeemable noncontrolling interests issued	0	(5)	0
Cash paid	0	(252)	(51)
Fair value of equity instruments issued as consideration to third parties	0	53	0
Issuance of subsidiary common units	0	(53)	0
Fair value of equity instruments consideration	$ 0	$ 0	$ 0