Investments in Equity Securities (Investment in Cronos Narrative) (Details) - Cronos [Member] - USD ($) shares in Millions, $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Investments [Line Items]
Ownership percentage	40.90%
Number of ordinary shares owned (approximately) (in shares)	157
Equity method investment, difference between carrying amount and fair value	$ 119
Equity method investment, difference between carrying amount and fair value, percentage (approximately)	38.00%
Fair value of equity investment		$ 315

Equity Method Investment, Difference Between Carrying Amount and Fair Value

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Equity Method Investment, Difference Between Carrying Amount and Fair Value, Percentage

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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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