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Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Deferred compensation plan investments (1) | $ 123.1 | [1] | $ 120.7
Participant Withdrawals From Deferred Compensation Plan Investments | 7.4 |  | 3.6
Level 1 [Member] |  |  |
Deferred compensation plan investments (1) | 123.1 | [1] | 120.7
Level 2 [Member] |  |  |
Deferred compensation plan investments (1) | 0.0 | [1] | 0.0
Level 3 [Member] |  |  |
Deferred compensation plan investments (1) | $ 0.0 | [1] | $ 0.0
[1] | Approximately $7.4 million and $3.6 million of participant cash was withdrawn from our deferred compensation plan investments during the three months ended March 31, 2023 and the year ended December 31, 2022, respectively.

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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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