Share Capital (Schedule of Common Stock Issued and Outstanding) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Class Of Stock [Line Items] | |||||
| Shares of Common Stock Outstanding, Beginning of Year | 253,300,000 | 260,400,000 | 260,400,000 | ||
| Shares of Common Stock Purchased | (7,600,000) | (7,800,000) | |||
| Shares of Common Stock Issued | 30,900,000 | 700,000 | |||
| Shares of Common Stock Outstanding, End of Period | 276,600,000 | 276,600,000 | 253,300,000 | ||
| Shares of Common Stock Outstanding, Beginning of Year | $ 3 | $ 3 | $ 3 | ||
| Shares of Common Stock Purchased | $ (345) | $ (147) | (429) | (147) | |
| Shares of Common Stock Issued | 1,277 | ||||
| Shares of Common Stock Outstanding, End of Period | 3 | 3 | 3 | ||
| Share Capital [Member] | |||||
| Class Of Stock [Line Items] | |||||
| Shares of Common Stock Purchased | $ 0 | $ 0 | 0 | $ 0 | 0 |
| Shares of Common Stock Issued | $ 0 | $ 0 | |||
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Value of common shares held by shareholders. Excludes common shares repurchased and held as treasury shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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