Changes in Gross Unrecognized Tax Benefits Related to Uncertain Tax Positions (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Beginning unrecognized tax benefits	$ 11,961	$ 11,737	$ 10,164
Decreases related to settlements	(316)	(193)	(4)
Increases for tax positions related to the current year	2,106	1,445	1,277
Increases for tax positions related to prior years	508	151	397
Decreases for tax positions related to prior years	(1,113)	(1,176)	(49)
Decreases due to lapsed statutes of limitations	0	(3)	(48)
Ending unrecognized tax benefits	$ 13,146	$ 11,961	$ 11,737

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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