Share Repurchases (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||||
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Mar. 31, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
Sep. 30, 2024 |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Share Repurchase Program 2021 | ||||||||
| Share Repurchase Program [Line Items] | ||||||||
| Shares of common stock repurchased | 8,000,000 | 8,000,000 | 7,000,000 | 23,000,000 | ||||
| Value of common stock repurchased | $ 3,500 | $ 3,500 | $ 2,800 | $ 9,800 | ||||
| Share Repurchase Program 2024 | ||||||||
| Share Repurchase Program [Line Items] | ||||||||
| Shares of common stock repurchased | 7,000,000 | 12,000,000 | 8,000,000 | 27,000,000 | ||||
| Value of common stock repurchased | $ 3,400 | $ 5,964 | $ 3,955 | $ 13,319 | ||||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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