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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Income Taxes [Line Items]
Effective tax rate	17.00%		16.00%	9.00%	15.00%
Provision (benefit) for income taxes	$ (3,750)		$ (2,874)	$ (3,769)	$ (5,105)
Long-term income taxes	26,121			26,121		$ 27,190
Unrecognized Tax Benefits and Other Income Tax Liabilities
Income Taxes [Line Items]
Long-term income taxes	$ 16,300			$ 16,300		$ 15,900
Transfer of Intangible Properties
Income Taxes [Line Items]
Provision (benefit) for income taxes		$ 3,300

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Income Taxes [Line Items]

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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