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Income Taxes (Narrative) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Taxes [Abstract] |  |  |
U.S. Statutory Tax Rate | 21.00% | 21.00% | 21.00%
Valuation allowance on deferred tax assets | $ 0 | $ 0 |
Undistributed accumulated earnings of foreign subsidiaries | 1,900,000,000 | $ 1,600,000,000 |
Earnings, Indefinitely Reinvested Abroad Due To Regulatory And Other Capital Requirements | 1,800,000,000 |  |
Estimated Deferred Tax Liablity Due To Hypothetical Repatriation Of Earnings | 11,000,000 |  |
Liability for Uncertainty in Income Taxes | $ 2,000,000 |  |

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- Definition Estimated Deferred Tax Liablity Due To Hypothetical Repatriation Of Earnings + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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