Dividends Declared (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Equity [Abstract]
Declaration Date	Mar. 14, 2022	Dec. 07, 2021	Sep. 14, 2021	Mar. 16, 2021	Dec. 02, 2020	Sep. 15, 2020
Record Date	May 19, 2022	Feb. 17, 2022	Nov. 18, 2021	May 20, 2021	Feb. 18, 2021	Nov. 19, 2020
Payment Date	Jun. 09, 2022	Mar. 10, 2022	Dec. 09, 2021	Jun. 10, 2021	Mar. 11, 2021	Dec. 10, 2020
Dividend Per Share	$ 0.62	$ 0.62	$ 0.62	$ 0.56	$ 0.56	$ 0.56	$ 1.86	$ 1.68
Amount	$ 4,639	$ 4,645	$ 4,652	$ 4,214	$ 4,221	$ 4,230	$ 13,936	$ 12,665

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

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

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

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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