Leases - Schedule of Additional Information Related To Leases (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating Lease, Weighted-average remaining lease term	11 years 9 months 18 days	12 years 2 months 12 days
Operating Leases, Weighted-average incremental borrowing rate	3.54%	3.49%
Finance Lease, Weighted-average remaining lease term	3 years 8 months 12 days	4 years 8 months 12 days
Finance Lease, Weighted-average incremental borrowing rate	3.64%	3.64%
Cash paid - Operating lease liabilities	$ 184	$ 224
Cash paid - Finance lease liabilities - principal	30	7
Cash paid - Finance lease liabilities - interest	4	1
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$ 25	$ 225