v3.25.4

Dividends Declared (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Dividends Payable [Line Items]
Dividend Per Share	$ 0.91	$ 0.91	$ 0.83	$ 0.83	$ 1.82	$ 1.66
Amount	$ 6,760	$ 6,762	$ 6,169	$ 6,170	$ 13,522	$ 12,339
O2026Q1 Dividends
Dividends Payable [Line Items]
Declaration Date		Sep. 15, 2025
Record Date		Nov. 20, 2025
Payment Date		Dec. 11, 2025
O2026Q2 Dividends
Dividends Payable [Line Items]
Declaration Date	Dec. 02, 2025
Record Date	Feb. 19, 2026
Payment Date	Mar. 12, 2026
O2025Q1 Dividends
Dividends Payable [Line Items]
Declaration Date				Sep. 16, 2024
Record Date				Nov. 21, 2024
Payment Date				Dec. 12, 2024
O2025Q2 Dividends
Dividends Payable [Line Items]
Declaration Date			Dec. 03, 2024
Record Date			Feb. 20, 2025
Payment Date			Mar. 13, 2025

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

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-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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- Definition

Date the dividend to be paid was declared, in YYYY-MM-DD format.

+ References

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-Topic 230
-SubTopic 10
-Section 50
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