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Earnings Per Common Share (Computation Of Basic And Diluted Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Numerator: |  |  |  |
Net income | $ 583 | $ 790 | $ 1,131 | $ 1,432
Preferred stock dividends and other (1) | (25) | (42) | (49) | (70)
Net income available to common shareholders | $ 558 | $ 748 | $ 1,082 | $ 1,362
Denominator: |  |  |  |
Weighted-average common shares outstanding—basic (in shares) | 934,000 | 958,000 | 936,000 | 959,000
Potential common shares (in shares) | 6,000 | 7,000 | 7,000 | 8,000
Weighted-average common shares outstanding—diluted (in shares) | 940,000 | 965,000 | 943,000 | 967,000
Earnings per common share: |  |  |  |
Basic (in dollars per share) | $ 0.60 | $ 0.78 | $ 1.16 | $ 1.42
Diluted (in dollars per share) | $ 0.59 | $ 0.77 | $ 1.15 | $ 1.41
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares) | 6,000 | 4,000 | 4,000 | 4,000
Document Fiscal Year Focus |  |  | 2022 |

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