Leases - Schedule of Additional Information Related To Operating Lease (Detail) - Accounting Standards Update 2016-02 [Member] $ in Millions	3 Months Ended
	Sep. 30, 2019 USD ($)
Weighted-average remaining lease term	11 years 4 months 24 days
Weighted-average incremental borrowing rate	3.25%
Cash paid—Operating lease liabilities	$ 57
Operating lease right-of-use asset obtained in exchange for operating lease liabilities	$ 225