Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Income Taxes [Line Items]
Effective tax rate	17.00%		10.00%	11.00%	13.00%
Provision (benefit) for income taxes	$ 3,462		$ 1,779	$ 7,231	$ 6,884
Long-term income taxes	26,483			26,483		$ 27,190
Unrecognized Tax Benefits and Other Income Tax Liabilities
Income Taxes [Line Items]
Long-term income taxes	$ 16,000			$ 16,000		$ 15,900
Earliest Tax Year
Income Taxes [Line Items]
Tax years impacted	1996
Latest Tax Year
Income Taxes [Line Items]
Tax years impacted	2016
India Supreme Court
Income Taxes [Line Items]
Provision (benefit) for income taxes			$ (620)
Transfer of Intangible Properties
Income Taxes [Line Items]
Provision (benefit) for income taxes		$ (3,300)