Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value) (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Deferred compensation plan investments (1) | $ 160.7 | $ 150.6 |
| Participant Withdrawals From Deferred Compensation Plan Investments | 7.7 | 10.9 |
| Level 1 [Member] | ||
| Deferred compensation plan investments (1) | 160.7 | 150.6 |
| Level 2 [Member] | ||
| Deferred compensation plan investments (1) | 0.0 | 0.0 |
| Level 3 [Member] | ||
| Deferred compensation plan investments (1) | 0.0 | 0.0 |
| Fair Value Hedging | ||
| Hedged Asset, Fair Value Hedge | 1.4 | 4.9 |
| Fair Value Hedging | Level 1 [Member] | ||
| Hedged Asset, Fair Value Hedge | 0.0 | 0.0 |
| Fair Value Hedging | Level 2 [Member] | ||
| Hedged Asset, Fair Value Hedge | 1.4 | 4.9 |
| Fair Value Hedging | Level 3 [Member] | ||
| Hedged Asset, Fair Value Hedge | $ 0.0 | $ 0.0 |