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Earnings (Loss) Per Common Share (Computation Of Basic And Diluted Earnings (Loss) Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Numerator: |  |  |  |
Net income |  | $ 2,245 | $ 2,521 | $ 1,094
Preferred stock dividends and other(1) | [1] | (99) | (121) | (103)
Net income available to common shareholders |  | $ 2,146 | $ 2,400 | $ 991
Denominator: |  |  |  |
Weighted-average common shares outstanding—basic |  | 935,000 | 956,000 | 959,000
Potential common shares |  | 7,000 | 7,000 | 3,000
Weighted-average common shares outstanding—diluted |  | 942,000 | 963,000 | 962,000
Earnings per common share: |  |  |  |
Basic |  | $ 2.29 | $ 2.51 | $ 1.03
Diluted |  | $ 2.28 | $ 2.49 | $ 1.03
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 4,000 | 4,000 | 7,000
Series A Preferred Stock [Member] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |
PreferredStockIssuanceCostsReductiontoNetIncome |  |  | $ 13 |
[1] | Preferred stock dividends and other for the year ended December 31, 2021 includes $13 million of issuance costs associated with the redemption of Series A preferred shares in 2021.

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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