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BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Jun. 30, 2020
Statement Of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 642	$ 788
Property and equipment, accumulated depreciation	$ 47,715	$ 43,197
Common stock, shares authorized	24,000,000,000	24,000,000,000
Common stock, outstanding	7,546,000,000	7,571,000,000

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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