BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2023	Jun. 30, 2022
Statement Of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 495	$ 633
Property and equipment, accumulated depreciation	$ 65,998	$ 59,660
Common stock, shares authorized	24,000,000,000	24,000,000,000
Common stock, outstanding	7,437,000,000	7,464,000,000