Shareholders' Equity - Common Stock Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||||||
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Oct. 18, 2023 |
Jul. 19, 2023 |
Apr. 26, 2023 |
Feb. 01, 2023 |
Sep. 30, 2023 |
Sep. 30, 2022 |
Sep. 30, 2023 |
Sep. 30, 2022 |
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| Class of Stock [Line Items] | ||||||||
| Common stock repurchased | $ 1,000 | $ 450 | $ 3,765 | $ 4,075 | ||||
| Shares reserved for future issuance (in shares) | 496 | 496 | ||||||
| Dividends per share (in dollars per share) | $ 0.24 | $ 0.22 | $ 0.22 | |||||
| Subsequent Event | ||||||||
| Class of Stock [Line Items] | ||||||||
| Dividends per share (in dollars per share) | $ 0.24 | |||||||
| Common Stock | ||||||||
| Class of Stock [Line Items] | ||||||||
| Total share repurchases, including CCAR capital plan repurchases (in shares) | 33 | 119 | ||||||
| Common stock repurchased | $ 1,000 | $ 3,800 | ||||||
| Stock issued (in shares) | 73 | |||||||
| Shares paid for tax withholding for share based compensation (in shares) | 28 | |||||||
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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/2003/role/exampleRef
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement. No definition available.
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- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares that have been repurchased and retired during the period. 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 and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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