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Share-Based Compensation (Schedule of Aggregate Fair Value of Restricted Stock, Performance-Based Restricted Stock And Performance Shares, Awards And Units, That Vested During The Period) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Restricted Stock Awards [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Line Items |  |  |
Aggregate fair value of awards and units, vested | $ 180 | $ 115 | $ 44
Performance-Based Restricted Stock Awards [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Line Items |  |  |
Aggregate fair value of awards and units, vested | 0 | 1 | 2
Performance Share Units [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Line Items |  |  |
Aggregate fair value of awards and units, vested | $ 62 | $ 15 | $ 10

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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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. + References No definition available. + Details
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