Leases - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jul. 01, 2019	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Stockholders' equity	$ 9,143	$ 9,146	$ 8,389		$ 10,311
Retained Earnings
Lessee, Lease, Description [Line Items]
Stockholders' equity	$ (2,293)	$ (2,911)	$ (3,241)		(1,979)
Cumulative Effect, Period of Adoption, Adjustment
Lessee, Lease, Description [Line Items]
Stockholders' equity					9
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings
Lessee, Lease, Description [Line Items]
Stockholders' equity					$ 6
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-02 | Retained Earnings
Lessee, Lease, Description [Line Items]
Stockholders' equity				$ 9