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Earnings Per Share and Shareholders' Equity Transactions (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Class Of Stock [Line Items] |  |  |
Repurchases common stock, authorized | $ 1,300,000,000 |  |
Repurchased common shares | 8,800,000 |  |
Stock available for additional repurchases | $ 173,000,000 |  |
Percentage of excise tax imposed on common stock repurchase activity | 1.00% |  |
Open Market Purchases [Member] |  |  |
Class Of Stock [Line Items] |  |  |
Repurchased common shares | 700,000 | 200,000 | 0
Repurchased common shares value | $ 130,100,000 | $ 26,700,000 |
Maximum [Member] | Accelerated Share Repurchase Agreement [Member] |  |  |
Class Of Stock [Line Items] |  |  |
Repurchases common stock, authorized | $ 1,300,000,000 |  |
Stock Compensation Plans [Member] |  |  |
Class Of Stock [Line Items] |  |  |
Antidilutive securities excluded from calculation of earnings per share | 100,000 | 400,000 | 300,000

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