Earnings Per Common Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Earnings per common share | ||
| Net income | $ 6,918 | $ 5,337 |
| Preferred stock dividends | (428) | (502) |
| Net income applicable to common shareholders | $ 6,490 | $ 4,835 |
| Average common shares issued and outstanding (in shares) | 10,322.4 | 10,099.6 |
| Earnings per common share (in dollars per share) | $ 0.63 | $ 0.48 |
| Diluted earnings per common share | ||
| Net income applicable to common shareholders | $ 6,490 | $ 4,835 |
| Add preferred stock dividends due to assumed conversions | 0 | 75 |
| Net income allocated to common shareholders | $ 6,490 | $ 4,910 |
| Average common shares issued and outstanding (in shares) | 10,322.4 | 10,099.6 |
| Dilutive potential common shares (in shares) | 150.3 | 820.1 |
| Total diluted average common shares issued and outstanding (in shares) | 10,472.7 | 10,919.7 |
| Diluted earnings per common share (in dollars per share) | $ 0.62 | $ 0.45 |
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- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of dilutive convertible securities excluding adjustments related to ESOP convertible preferred stock, stock options, and restrictive stock units. No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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