Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Millions	Sep. 30, 2018	Jun. 30, 2018
Operating Leases
Operating lease right-of-use assets	$ 6,734	$ 6,686
Total operating lease liabilities	7,024	6,967
Finance Leases
Accumulated depreciation	(30,953)	(29,223)
Property and equipment, net	31,430	29,460
Total finance lease liabilities	$ 4,674	$ 4,301
Weighted Average Remaining Lease Term
Operating leases	7 years	7 years
Finance leases	13 years	13 years
Weighted Average Discount Rate
Operating leases	2.80%	2.70%
Finance leases	5.10%	5.20%
Finance Lease
Finance Leases
Property and equipment, at cost	$ 4,955	$ 4,543
Accumulated depreciation	(481)	(404)
Property and equipment, net	4,474	4,139
Other Current Liabilities
Operating Leases
Total operating lease liabilities	1,372	1,399
Finance Leases
Total finance lease liabilities	203	176
Operating Lease Liabilities
Operating Leases
Total operating lease liabilities	5,652	5,568
Other Long-term Liabilities
Finance Leases
Total finance lease liabilities	$ 4,471	$ 4,125