Investments in Equity Securities (Investment in ABI Narrative) (Details) - ABI [Member] shares in Millions, $ in Billions |
9 Months Ended | |
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Sep. 30, 2026
USD ($)
shares
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Dec. 31, 2025
USD ($)
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| Investments [Line Items] | ||
| Equity method investment, ownership percentage (approximately) | 8.10% | |
| Equity method investment, number of shares owned, restricted (in shares) | shares | 125 | |
| Equity method investment, number of shares owned, common (in shares) | shares | 34 | |
| Conversion ratio | 1 | |
| Equity method investment, difference between carrying amount and fair value, percentage (approximately) | 31.00% | 24.00% |
| Level 1 [Member] | ||
| Investments [Line Items] | ||
| Fair value of investment | $ | $ 11.8 | $ 10.3 |
| Equity method investment, difference between carrying amount and fair value | $ | $ 9.0 | $ 8.3 |
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- Definition Conversion Of Stock, Conversion Ratio No definition available.
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- Definition Equity Method Investment, Difference Between Carrying Amount and Fair Value No definition available.
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- Definition Equity Method Investment, Difference Between Carrying Amount and Fair Value, Percentage No definition available.
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- Definition Equity Method Investment, Number of Shares Owned, Common No definition available.
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- Definition Equity Method Investment, Number of Shares Owned, Restricted No definition available.
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- Definition [Line Items] for Investments [Table] No definition available.
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value portion of investments accounted under the equity method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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