Investments in Equity Securities (Investment in ABI Narrative) (Details) - ABI [Member] shares in Millions, $ in Billions	3 Months Ended
Mar. 31, 2026 USD ($) shares	Dec. 31, 2025 USD ($)
Investments [Line Items]
Equity method investment, ownership percentage (approximately)	8.20%
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)	27.00%	24.00%
Level 1 [Member]
Investments [Line Items]
Fair value of investment \| $	$ 11.0	$ 10.3
Equity method investment, difference between carrying amount and fair value \| $	$ 8.6	$ 8.3

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Equity Method Investment, Number of Shares Owned, Common

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[Line Items] for Investments [Table]

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Fair value portion of investments accounted under the equity method.

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