Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Earning Per Share Basic And Diluted [Abstract]
Net income available for common shareholders (A)	$ 101,832	$ 88,136	$ 72,361
Weighted average outstanding shares of common stock (B)	7,433	7,431	7,446
Dilutive effect of stock-based awards	32	38	26
Common stock and common stock equivalents (C)	7,465	7,469	7,472
Earnings Per Share
Basic (A/B)	$ 13.70	$ 11.86	$ 9.72
Diluted (A/C)	$ 13.64	$ 11.80	$ 9.68

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details