Long-Lived Assets, Excluding Financial Instruments and Tax Assets, Classified by Location of Controlling Statutory Company (Detail) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 166,368	$ 128,314	$ 103,293
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	106,430	76,153	60,789
Ireland
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	15,505	13,303	12,734
Other Countries
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 44,433	$ 38,858	$ 29,770